1
|
Bu X, Yin D, Chen D, Quan Q, Yang Z, Yip S, Wong CY, Wang X, Ho JC. Controlling Surface Chemical Inhomogeneity of Ni 2 P/MoNiP 2 /MoP Heterostructure Electrocatalysts for Efficient Hydrogen Evolution Reaction. Small 2023:e2304546. [PMID: 37626462 DOI: 10.1002/smll.202304546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/25/2023] [Indexed: 08/27/2023]
Abstract
Crystalline/amorphous phase engineering is demonstrated as a powerful strategy for electrochemical performance optimization. However, it is still a considerable challenge to prepare transition metal-based crystalline/amorphous heterostructures because of the low redox potential of transition metal ions. Herein, a facile H2 -assisted method is developed to prepare ternary Ni2 P/MoNiP2 /MoP crystalline/amorphous heterostructure nanowires on the conductive substrate. The characterization results show that the content of the MoNiP2 phase and the crystallinity of the MoP phase can be tuned by simply controlling the H2 concentration. The obtained electrocatalyst exhibits a superior alkaline hydrogen evolution reaction performance, delivering overpotentials of 20 and 76 mV to reach current densities of 10 and 100 mA cm-2 with a Tafel slope of 30.6 mV dec-1 , respectively. The catalysts also reveal excellent stability under a constant 100 h operation, higher than most previously reported electrocatalysts. These striking performances are ascribed to the optimized hydrogen binding energy and favorable hydrogen adsorption/desorption kinetics. This work not only exhibits the potential application of ternary Ni2 P/MoNiP2 /MoP crystalline/amorphous heterostructure nanowires catalysts for practical electrochemical water splitting, but also paves the way to prepare non-noble transition metal-based electrocatalysts with optimized crystalline/amorphous heterostructures.
Collapse
Affiliation(s)
- Xiuming Bu
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), Shanghai, 200050, P. R. China
| | - Di Yin
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Dong Chen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Quan Quan
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Zhe Yang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - SenPo Yip
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Xianying Wang
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), Shanghai, 200050, P. R. China
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| |
Collapse
|
2
|
Cai Z, Wang P, Zhao X, Bu X, Zhang J, Chen Y, Xu J, Yan Y, Chen A, Wang X. Ultralow-iridium content NiIr alloy derivative nanochain arrays as bifunctional electrocatalysts for overall water splitting. RSC Adv 2023; 13:17315-17323. [PMID: 37304768 PMCID: PMC10249465 DOI: 10.1039/d3ra01845h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/30/2023] [Indexed: 06/13/2023] Open
Abstract
The development of low-cost and high-durability bifunctional electrocatalysts is of considerable importance for overall water splitting (OWS). This work reports the controlled synthesis of nickel-iridium alloy derivative nanochain array electrodes (NiIrx NCs) with fully exposed active sites that facilitated mass transfer for efficient OWS. The nanochains have a self-supported three-dimensional core-shell structure, composed of a metallic NiIrx core and a thin (5-10 nm) amorphous (hydr)oxide film as the shell (e.g., IrO2/NiIrx and Ni(OH)2/NiIrx). Interestingly, NiIrx NCs have bifunctional properties. Particularly, the oxygen evolution reaction (OER) current density (electrode geometrical area) of NiIr1 NCs is four times higher than that of IrO2 at 1.6 V vs. RHE. Meanwhile, its hydrogen evolution reaction (HER) overpotential at 10 mA cm-2 (η10 = 63 mV) is comparable to that of 10 wt% Pt/C. These performances may originate from the interfacial effect between the surface (hydr)oxide shell and metallic NiIrx core, which facilitates the charge transfer, along with the synergistic effect between Ni2+ and Ir4+ in the (hydr)oxide shell. Furthermore, NiIr1 NCs exhibits excellent OER durability (100 h @ 200 mA cm-2) and OWS durability (100 h @ 500 mA cm-2) with the nanochain array structure well preserved. This work provides a promising route for developing effective bifunctional electrocatalysts for OWS applications.
Collapse
Affiliation(s)
- Zhengyang Cai
- School of Materials and Chemistry, University of Shanghai for Science and Technology 200093 Shanghai P. R. China
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| | - Ping Wang
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| | - Xianglong Zhao
- School of Science, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Xiuming Bu
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| | - Jiajia Zhang
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| | - Yuhao Chen
- School of Materials and Chemistry, University of Shanghai for Science and Technology 200093 Shanghai P. R. China
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| | - Jingcheng Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 200093 Shanghai P. R. China
| | - Ya Yan
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| | - Aiying Chen
- School of Materials and Chemistry, University of Shanghai for Science and Technology 200093 Shanghai P. R. China
| | - Xianying Wang
- Energy Materials Research Center Institute of Ceramics, Chinese Academy of Sciences 200050 Shanghai P. R. China
| |
Collapse
|
3
|
Meng Y, Li X, Kang X, Li W, Wang W, Lai Z, Wang W, Quan Q, Bu X, Yip S, Xie P, Chen D, Li D, Wang F, Yeung CF, Lan C, Liu C, Shen L, Lu Y, Chen F, Wong CY, Ho JC. Van der Waals nanomesh electronics on arbitrary surfaces. Nat Commun 2023; 14:2431. [PMID: 37105992 PMCID: PMC10140039 DOI: 10.1038/s41467-023-38090-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Chemical bonds, including covalent and ionic bonds, endow semiconductors with stable electronic configurations but also impose constraints on their synthesis and lattice-mismatched heteroepitaxy. Here, the unique multi-scale van der Waals (vdWs) interactions are explored in one-dimensional tellurium (Te) systems to overcome these restrictions, enabled by the vdWs bonds between Te atomic chains and the spontaneous misfit relaxation at quasi-vdWs interfaces. Wafer-scale Te vdWs nanomeshes composed of self-welding Te nanowires are laterally vapor grown on arbitrary surfaces at a low temperature of 100 °C, bringing greater integration freedoms for enhanced device functionality and broad applicability. The prepared Te vdWs nanomeshes can be patterned at the microscale and exhibit high field-effect hole mobility of 145 cm2/Vs, ultrafast photoresponse below 3 μs in paper-based infrared photodetectors, as well as controllable electronic structure in mixed-dimensional heterojunctions. All these device metrics of Te vdWs nanomesh electronics are promising to meet emerging technological demands.
Collapse
Affiliation(s)
- You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Xiaocui Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Xiaolin Kang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Wanpeng Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Wei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Zhengxun Lai
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Weijun Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Quan Quan
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - SenPo Yip
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
| | - Pengshan Xie
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Dong Chen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Dengji Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Fei Wang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130021, China.
| | - Chi-Fung Yeung
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Changyong Lan
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Chuntai Liu
- Key Laboratory of Advanced Materials Processing & Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, P.R. China
| | - Lifan Shen
- College of Microelectronics and Key Laboratory of Optoelectronics Technology, Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, P.R. China
| | - Yang Lu
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Furong Chen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Chun-Yuen Wong
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR.
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR.
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR.
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR.
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan.
| |
Collapse
|
4
|
Lai Z, Zhang Y, Meng Y, Bu X, Wang W, Xie P, Wang W, Liu C, Yip S, Ho JC. Contact Engineering of Halide Perovskites: Gold is Not Good Enough; Metalloid is Better. Small Methods 2023:e2201567. [PMID: 37029706 DOI: 10.1002/smtd.202201567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/27/2023] [Indexed: 06/19/2023]
Abstract
The operation stability of halide perovskite devices is the critical issue that impedes their commercialization. The main reasons are that the ambient H2 O molecules can easily deteriorate the perovskites, while the metal electrodes react in different degrees with the perovskites. Herein, one kind of new electrode, the metalloids, is reported, which are much more stable than the conventional noble metals as electrical contacts for halide perovskites. The degradation mechanism of halide perovskites with noble metal electrodes is carefully studied and compared with the metalloid electrodes. It is found that the iodide ions can easily halogenate Cu and Ag in halide perovskites. Although Au is almost not halogenated, it can also decompose the perovskite film. On the contrary, after long-term storage, the metalloid electrodes remain intact on the perovskite film without any degradation. In addition, the long-time operation stability of the perovskite devices with metalloid electrodes is much higher than that of noble metals. First-principles calculations confirm the exceptional stability of the metalloid electrodes.This work explores the ultra-stable electrodes for halide perovskites, paving the way to the large-scale deployment of perovskite-based electronic devices.
Collapse
Affiliation(s)
- Zhengxun Lai
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Yuxuan Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Wei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Pengshan Xie
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Weijun Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Chuntai Liu
- Key Laboratory of Advanced Materials Processing & Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, China
| | - SenPo Yip
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
| |
Collapse
|
5
|
Zhang H, Li Z, Zheng S, Zheng P, Liang X, Li Y, Bu X, Zou X. Range-aided drift-free cooperative localization and consistent reconstruction of multi-ground robots. IEEE Robot Autom Lett 2023. [DOI: 10.1109/lra.2023.3244721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- H. Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Z. Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - S. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - P. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Liang
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Y. Li
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Bu
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Zou
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
6
|
Zheng S, Li Z, Liu Y, Zhang H, Zheng P, Liang X, Li Y, Bu X, Zou X. UWB-VIO Fusion for Accurate and Robust Relative Localization of Round Robotic Teams. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3208354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- S. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Z. Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Y. Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - H. Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - P. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Liang
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Y. Li
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Bu
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Zou
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
7
|
Wu Y, Bu X, Ke Y, Sun H, Li J, Chen L, Cui W, He Y, Wu L. Insight into the Stereocontrol of DNA Polymerase‐Catalysed Reaction by Chiral Cobalt Complexes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Wu
- College of Chemistry and Chemical Engineering Xi'an Shiyou University Xi'an 710065 People's Republic of China
| | - X. Bu
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Y. Ke
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - H. Sun
- School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710065 People's Republic of China
| | - J. Li
- College of Chemistry and Chemical Engineering Xi'an Shiyou University Xi'an 710065 People's Republic of China
| | - L. Chen
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - W. Cui
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Y. He
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - L. Wu
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Beijing 100191 People's Republic of China
| |
Collapse
|
8
|
Wang W, Wang W, Meng Y, Quan Q, Lai Z, Li D, Xie P, Yip S, Kang X, Bu X, Chen D, Liu C, Ho JC. Mixed-Dimensional Anti-ambipolar Phototransistors Based on 1D GaAsSb/2D MoS 2 Heterojunctions. ACS Nano 2022; 16:11036-11048. [PMID: 35758898 DOI: 10.1021/acsnano.2c03673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The incapability of modulating the photoresponse of assembled heterostructure devices has remained a challenge for the development of optoelectronics with multifunctionality. Here, a gate-tunable and anti-ambipolar phototransistor is reported based on 1D GaAsSb nanowire/2D MoS2 nanoflake mixed-dimensional van der Waals heterojunctions. The resulting heterojunction shows apparently asymmetric control over the anti-ambipolar transfer characteristics, possessing potential to implement electronic functions in logic circuits. Meanwhile, such an anti-ambipolar device allows the synchronous adjustment of band slope and depletion regions by gating in both components, thereby giving rise to the gate-tunability of the photoresponse. Coupled with the synergistic effect of the materials in different dimensionality, the hybrid heterojunction can be readily modulated by the external gate to achieve a high-performance photodetector exhibiting a large on/off current ratio of 4 × 104, fast response of 50 μs, and high detectivity of 1.64 × 1011 Jones. Due to the formation of type-II band alignment and strong interfacial coupling, a prominent photovoltaic response is explored in the heterojunction as well. Finally, a visible image sensor based on this hybrid device is demonstrated with good imaging capability, suggesting the promising application prospect in future optoelectronic systems.
Collapse
Affiliation(s)
- Wei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Weijun Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Quan Quan
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Zhengxun Lai
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Dengji Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Pengshan Xie
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - SenPo Yip
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
| | - Xiaolin Kang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Dong Chen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Chuntai Liu
- Key Laboratory of Advanced Materials Processing & Mold (Zhengzhou University), Ministry of Education, Zhengzhou 450002, China
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
- Hong Kong Institute for Advanced Study, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| |
Collapse
|
9
|
Van der Heijde D, Baraliakos X, Sieper J, Deodhar A, Inman R, Kameda H, Zeng X, Sui Y, Bu X, Pangan A, Wung P, Song IH. POS0306 EFFICACY AND SAFETY OF UPADACITINIB IN PATIENTS WITH ACTIVE ANKYLOSING SPONDYLITIS REFRACTORY TO BIOLOGIC THERAPY: A DOUBLE-BLIND, RANDOMIZED, PLACEBO-CONTROLLED PHASE 3 TRIAL. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundUpadacitinib (UPA) was shown to be safe and effective through 2 years in patients (pts) with active ankylosing spondylitis (AS) naïve to biologic disease-modifying antirheumatic drugs (bDMARDs) in the pivotal phase 2/3 SELECT-AXIS 1 trial.1,2ObjectivesTo assess the efficacy and safety of UPA in pts with active AS with an inadequate response (IR) to bDMARDs.MethodsSELECT-AXIS 2 (NCT04169373) was conducted under a master protocol and includes two separate studies (one for AS bDMARD-IR and one for non-radiographic axial spondyloarthritis [nr-axSpA]). The AS bDMARD-IR study is a randomized, double-blind, placebo (PBO)-controlled, phase 3 trial that enrolled adults ≥18 years with AS who met modified New York criteria, had BASDAI and pt’s assessment of total back pain scores ≥4 (numeric rating scale 0–10) at study entry, and had an IR to one or two bDMARDs (TNF inhibitor or IL-17 inhibitor). Pts were randomized 1:1 to receive oral UPA 15 mg once daily (QD) or PBO during the 14-week (wk) double-blind treatment period. The primary endpoint was ASAS40 response at wk 14. Multiplicity-controlled secondary endpoints evaluated at wk 14 were improvements from baseline in disease activity (ASDAS [CRP], ASDAS ID [<1.3], ASDAS LDA [<2.1], BASDAI50, ASAS20, and ASAS PR), pain (total and nocturnal back pain), function (BASFI), objective measure of inflammation (SPARCC MRI score of the spine), spinal mobility (BASMI), enthesitis (MASES), and quality of life (ASQoL and ASAS HI). Non-responder imputation incorporating multiple imputation (NRI-MI) was used to handle intercurrent events and missing data for binary endpoints. Cochran-Mantel-Haenszel (CMH) test and mixed-effect model for repeated measures (MMRM) were used for analyzing binary and continuous endpoints, respectively. Treatment-emergent adverse events (TEAEs) assessed through wk 14 are reported for pts who had ≥1 dose of study drug.ResultsAll 420 randomized pts with active AS received assigned treatment (UPA 15 mg, n=211; PBO, n=209); 409 (97%) received study drug through wk 14. Baseline demographic and disease characteristics were generally similar between treatment groups and reflective of an active AS bDMARD-IR population (74% male; mean age 42.4 years; mean disease duration 7.7 years; 83% HLA-B27 positive; mean BASDAI 6.8). Significantly more pts achieved the primary endpoint of ASAS40 response at wk 14 with UPA vs PBO (45% vs 18%; P<0.0001; Figure 1); UPA showed onset of effect in ASAS40 as early as wk 4 (nominal P≤0.05). All multiplicity-controlled secondary endpoints met statistical significance for UPA vs PBO at wk 14 across multiple clinical domains of AS (P<0.0001; Figure 1). The rate of TEAEs was similar between treatment groups through wk 14 (UPA, 41%; PBO, 37%). TEAEs led to discontinuation in 3 (1.4%) pts treated with PBO and none with UPA. Serious infections occurred with UPA (2.4%) but not with PBO and included 4 events of COVID-19 and 1 event of uveitis. Additional events of uveitis were reported in 3 (1.4%) pts treated with PBO. Inflammatory bowel disease (IBD) occurred in 1 (0.5%) pt on UPA and none on PBO. No malignancy, major adverse cardiovascular events, venous thromboembolic events, or death were reported with UPA; 1 event of malignancy was observed with PBO.ConclusionUPA 15 mg QD was significantly more effective than PBO over 14 wks of treatment in pts with active AS and IR to bDMARDs. No new safety risks were identified with UPA compared with its known safety profile.3,4 These findings are consistent with and complementary to those of SELECT-AXIS 1 (bDMARD-naïve AS population),1,2 and support the use of UPA in pts with active AS, including those who had a previous IR to bDMARD therapy.References[1]van der Heijde D, et al. Arthritis Rheumatol. 2021;73(suppl 10).[2]van der Heijde D, et al. Lancet. 2019;394(10214):2108–2117.[3]Cohen SB, et al. ARD. 2021;80:304–311.[4]Burmester G, et al. Rheumatol Ther. 2021;1–19.AcknowledgementsAbbVie funded this study and participated in the study design, research, analysis, data collection, interpretation of data, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by Julia Zolotarjova, MSc, MWC, of AbbVie.Disclosure of InterestsDésirée van der Heijde Consultant of: AbbVie, Bayer, BMS, Cyxone, Eisai, Galapagos, Gilead, GSK, Janssen, Lilly, Novartis, Pfizer, and UCB, Employee of: Director of Imaging Rheumatology BV, Xenofon Baraliakos Speakers bureau: AbbVie, BMS, Celgene, Chugai, Merck, Novartis, Pfizer, and UCB, Consultant of: AbbVie, BMS, Celgene, Chugai, Merck, Novartis, Pfizer, UCB, and Werfen, Grant/research support from: AbbVie, Novartis, Joachim Sieper Speakers bureau: AbbVie, Janssen, Merck, Novartis, Pfizer, Roche, and UCB, Consultant of: AbbVie, Janssen, Lilly, Merck, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Merck, and Pfizer, Atul Deodhar Consultant of: AbbVie, Amgen, Aurinia, BMS, Celgene, GSK, Janssen, Lilly, MoonLake, Novartis, Pfizer, and UCB., Grant/research support from: AbbVie, GSK, Lilly, Novartis, Pfizer, and UCB, Robert Inman Consultant of: AbbVie, Amgen, Janssen, Lilly, Novartis, Pfizer, and Sandoz, Grant/research support from: AbbVie, Amgen, and Janssen, Hideto Kameda Speakers bureau: AbbVie, Asahi-Kasei, BMS, Chugai, Eisai, Janssen, Lilly, Mitsubishi-Tanabe, Novartis, and Pfizer, Consultant of: AbbVie, Janssen, Lilly, Novartis, Sanofi, and UCB, Grant/research support from: AbbVie, Asahi-Kasei, Boehringer Ingelheim, Chugai, Eisai, and Mitsubishi-Tanabe, Xiaofeng Zeng: None declared, Yunxia Sui Shareholder of: May own AbbVie stock or options, Employee of: AbbVie, Xianwei Bu Shareholder of: May own AbbVie stock or options, Employee of: AbbVie, Aileen Pangan Shareholder of: May own AbbVie stock or options, Employee of: AbbVie, Peter Wung Shareholder of: May own AbbVie stock or options, Employee of: AbbVie, In-Ho Song Shareholder of: May own AbbVie stock or options, Employee of: AbbVie
Collapse
|
10
|
Mease PJ, Setty A, Papp K, Van den Bosch F, Tsuji S, Keiserman M, Bu X, Chen L, Mccaskill R, Mcdearmon-Blondell E, Wung P, Tillett W. POS1041 LONG-TERM EFFICACY AND SAFETY OF UPADACITINIB IN PATIENTS WITH PSORIATIC ARTHRITIS REFRACTORY TO BIOLOGIC THERAPIES: 2-YEAR RESULTS FROM THE PHASE 3 SELECT-PsA 2 STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundUpadacitinib (UPA), an oral Janus kinase (JAK) inhibitor, demonstrated efficacy and safety in patients (pts) with psoriatic arthritis (PsA) and prior inadequate response or intolerance to ≥1 biologic disease-modifying antirheumatic drug (bDMARD) at week (wk) 56 in the phase 3 SELECT-PsA 2 study.1ObjectivesTo evaluate the efficacy and safety of UPA at wk 104 from the ongoing long-term extension of SELECT-PsA 2.MethodsPts were randomized to UPA 15 mg (UPA15), UPA 30 mg (UPA30), or placebo (PBO) for 24 wks; PBO pts were then switched to UPA15 or UPA30. For continuous UPA treatment groups, efficacy endpoints at wk 104 were analyzed using non-responder imputation (NRI) and as observed (AO) (binary endpoints) or mixed-effect model repeated measures (MMRM) and AO (continuous endpoints). Treatment-emergent adverse events (TEAEs) were summarized for pts who received ≥1 dose of study drug using visit-based cut-off at wk 104.ResultsA total of 641 pts received ≥1 dose of study drug. At wk 104, 38.4% of all patients had discontinued study drug, with the highest discontinuation observed in patients randomized to PBO at baseline (all PBO: 46.7%). The most common reasons for discontinuation were lack of efficacy (UPA15: 12.3%, UPA30: 8.7%, all PBO: 21.7%) and adverse event (UPA15: 10.9%, UPA30: 13.3%, all PBO: 12.7%). The proportion of UPA pts that achieved ACR20/50/70, MDA, PASI75/90/100, and resolution of dactylitis and enthesitis were generally similar, or further improved, with 104 wks of treatment vs 56 wks1 (Table 1). Similarly, mean change from baseline in HAQ-DI, patient’s assessment of pain, BASDAI, and ASDAS was improved with UPA treatment. At 104 wks of therapy, clinical responses were largely similar with UPA15 and UPA30. Generally, safety data at wk 104 (Figure 1) were consistent with that reported at wk 56.1 Rates of serious infection, herpes zoster, hepatic disorder, anemia, neutropenia, lymphopenia, and CPK elevation remained numerically higher with UPA30 vs UPA15, while rates of malignancies, MACE, and VTE were similar for both UPA groups. One death was reported with UPA15 (unexplained due to lack of information; however, the patient had recently been diagnosed with ovarian cancer) and 2 with UPA30 (pancytopenia and COVID-19 pneumonia).Table 1.Efficacy Endpoints at Week 104EndpointUPA15 (n=211)UPA30 (n=218)Proportion of Pts (%)aNRIAONRIAOACR2055.580.354.681.8ACR5044.562.939.959.4ACR7023.232.221.631.5Minimal Disease Activity (MDA)29.441.333.949.3PASI75b47.769.852.781.1PASI90b37.755.244.367.8PASI100b23.135.435.955.6Resolution of enthesitis by LEIc39.867.837.568.4Resolution of dactylitis by LDId54.597.452.096.9Change from BLeMMRMAOMMRMAOHealth Assessment Questionnaire - Disability Index (HAQ-DI)-0.36-0.39-0.50-0.53Patient’s assessment of pain (numeric rating scale)-2.7-3.0-2.9-3.1Bath Ankylosing Spondylitis Disease Activity Index (BASDAI)f-2.6-3.0-2.6-2.9Ankylosing Spondylitis Disease Activity Score (ASDAS)f-1.4-1.7-1.3-1.5ACR20/50/70, ≥20%/50%/70% improvement in American College of Rheumatology criteria; AO, as observed; BL, baseline; LDI, Leeds Dactylitis Index; LEI, Leeds Enthesitis Index; MMRM, mixed effect model repeated measurement; NRI, non-responder imputation; PASI75/90/100, ≥75%/90%/100% improvement in Psoriasis Area and Severity Index; pts, patients; UPA, upadacitinib.aData shown as NRI and AO for binary endpoints.bFor pts with psoriasis affecting ≥3% of body surface area at BL.cFor pts with LEI >0 at BL; resolution LEI=0.dFor pts with LDI >0 at BL; resolution LDI=0.eData shown as MMRM (LS mean) and AO (mean) for continuous endpoints.fFor pts with psoriatic spondylitis at BL.ConclusionIn PsA pts with prior inadequate response or intolerance to ≥1 bDMARD, clinical responses were maintained with UPA15 and UPA30 up to 2 years of treatment. No new safety signals were identified in this long-term extension.References[1]Mease PJ, et al. Rheumatol Ther. 2021;8:903-19.AcknowledgementsAbbVie and the authors thank the patients, study sites, and investigators who participated in this clinical trial (NCT03104374). AbbVie funded this study and participated in the study design, research, analysis, data collection, interpretation of data, reviewing, and approval of the publication. All authors had access to relevant data and participated in the drafting, review, and approval of this publication. No honoraria or payments were made for authorship. Medical writing support was provided by Monica R.P. Elmore, PhD of AbbVie.Disclosure of InterestsPhilip J Mease Speakers bureau: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squib, Celgene, Eli Lilly, Galapagos, Genentech, Gilead, GSK, Janssen, Novartis, Pfizer, Sun Pharma, and UCB, Consultant of: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squib, Celgene, Eli Lilly, Galapagos, Genentech, Gilead, GSK, Janssen, Novartis, Pfizer, Sun Pharma, and UCB, Grant/research support from: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squib, Celgene, Eli Lilly, Galapagos, Genentech, Gilead, GSK, Janssen, Novartis, Pfizer, Sun Pharma, and UCB, Arathi Setty Shareholder of: Employee of AbbVie and may hold stock options, Employee of: Employee of AbbVie, Kim Papp Speakers bureau: AbbVie, Akros, Allergan, Almirall, Amgen, Bausch Health, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Dermavant, Dermira, Eli Lilly, Galderma, Genentech/Roche, Janssen, Kyowa Kirin, LEO, Meiji, MSD, Novartis, Pfizer, Regeneron, Sanofi Genzyme, Sienna Pharmaceuticals, Sun Pharma, Takeda, UCB, and Valeant, Consultant of: AbbVie, Akros, Allergan, Almirall, Amgen, Arcutis, Avillion, Bausch Health, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Dermavant, Dermira, Eli Lilly, Galderma, Genentech/Roche, GSK, Janssen, Kyowa Kirin, LEO, Meiji, MSD, Novartis, Pfizer, Regeneron, Sanofi Genzyme, Sienna Pharmaceuticals, Sun Pharma, Takeda, UCB, and Valeant, Grant/research support from: AbbVie, Akros, Allergan, Almirall, Amgen, Arcutis, Avillion, Bausch Health, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Dermavant, Dermira, Eli Lilly, Galderma, Genentech/Roche, GSK, Janssen, Kyowa Kirin, LEO, Meiji, MSD, Novartis, Pfizer, Regeneron, Sanofi Genzyme, Sienna Pharmaceuticals, Sun Pharma, Takeda, UCB, and Valeant, Filip van den Bosch Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Galapagos, Gilead, Janssen, Merck, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Galapagos, Gilead, Janssen, Merck, Novartis, Pfizer, and UCB, Shigeyoshi Tsuji Speakers bureau: AbbVie, Eli Lilly, Janssen, Novartis, and UCB, Consultant of: AbbVie, Eli Lilly, Janssen, Novartis, and UCB, Grant/research support from: AbbVie, Eli Lilly, Janssen, Novartis, and UCB, MAURO KEISERMAN Speakers bureau: AbbVie, Bristol Myers Squibb, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, and UCB, Grant/research support from: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, and UCB, Xianwei Bu Shareholder of: Employee of AbbVie and may hold stock options, Employee of: Employee of AbbVie, Liang Chen Shareholder of: Employee of AbbVie and may hold stock options, Employee of: Employee of AbbVie, Reva McCaskill Shareholder of: Employee of AbbVie and may hold stock options, Employee of: Employee of AbbVie, Erin McDearmon-Blondell Shareholder of: Employee of AbbVie and may hold stock options, Employee of: Employee of AbbVie, Peter Wung Shareholder of: Employee of AbbVie and may hold stock options, Employee of: Employee of AbbVie, William Tillett Speakers bureau: AbbVie, Amgen, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Amgen, Celgene, Eli Lilly, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Celgene, Eli Lilly, and Janssen
Collapse
|
11
|
Mease PJ, Lertratanakul A, Papp K, Van den Bosch F, Tsuji S, Dokoupilova E, Keiserman M, Bu X, Chen L, Mccaskill R, Zueger P, Mcdearmon-Blondell E, Pangan A, Tillett W. POS0196 UPADACITINIB IN PATIENTS WITH PSORIATIC ARTHRITIS REFRACTORY TO BIOLOGIC DISEASE-MODIFYING ANTIRHEUMATIC DRUGS: 56-WEEK DATA FROM THE PHASE 3 SELECT-PSA 2 STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Upadacitinib (UPA) is an oral Janus kinase inhibitor currently under evaluation for the treatment of psoriatic arthritis (PsA). Previous 24-week results from the SELECT-PsA 2 study in patients with PsA and prior inadequate response to ≥1 biologic disease-modifying antirheumatic drug (bDMARD) demonstrated UPA efficacy with a safety profile consistent with that observed in rheumatoid arthritis.1Objectives:To evaluate the 56-week efficacy and safety of UPA in the SELECT-PsA 2 study.Methods:Patients were randomized to 56 weeks of blinded treatment with UPA 15 or 30 mg once daily (QD), or placebo (PBO) switched to UPA 15 or 30 mg QD at Week 24. Efficacy endpoints included proportions of patients achieving 20/50/70% improvement in American College of Rheumatology (ACR) criteria (ACR20/50/70), 75/90/100% improvement in the Psoriasis Area and Severity Index (PASI75/90/100), resolution of dactylitis and enthesitis, and minimal disease activity (MDA). Non-responder imputation was used for missing data. Treatment-emergent adverse events (TEAEs) were summarized for events occurring while on UPA and ≤30 days after last dose (for those who discontinued).Results:Of 641 patients who received ≥1 dose of study drug, 74.7% completed 56 weeks of treatment. Clinical improvements based on the proportion of patients achieving ACR20/50/70 and MDA (Figure 1), PASI75/90/100, and resolution of dactylitis and enthesitis were generally maintained through 56 weeks of UPA treatment. Week 56 results for patients who switched from PBO to UPA at Week 24 had a similar trajectory to those for patients originally randomized to UPA. Overall, improvements observed with UPA 15 mg were similar to or approached those with UPA 30 mg over 56 weeks. Dose-dependent increases were observed for exposure-adjusted event rates (EAERs) of serious infections, herpes zoster (HZ), hepatic disorders, hematologic lab-related adverse events, and creatine phosphokinase (CPK) elevations, but not for exposure-adjusted incidence rates (EAIRs) of major adverse cardiovascular events (MACE), venous thromboembolic events (VTEs), or malignancies (Table 1). Generally, rates of TEAEs were lower with UPA 15 mg versus 30 mg.Conclusion:In patients with PsA and prior inadequate response to ≥1 bDMARD, UPA efficacy was maintained over 56 weeks with no new safety signals.References:[1]Mease PJ, et al. Ann Rheum Dis 2020. Epub ahead of print.Table 1.Safety through Week 56EventUPA 15 mg QD(n=290; PY=419.4)UPA 30 mg QD(n=308; PY=423.5)EAER, events/100 PY (95% CI)Infection89.7 (81.0–99.2)113.6 (103.9–124.2) Serious infection2.6 (1.5–4.7)6.1 (4.2–9.0) Opportunistic infectiona0.7 (0.2–2.2)0.9 (0.4–2.5) HZ3.8 (2.3–6.2)8.5 (6.1–11.8) Active TB00Gastrointestinal perforation (adjudicated)00Hepatic disorder4.8 (3.1–7.4)17.7 (14.1–22.2)Anemia2.1 (1.1–4.1)5.4 (3.6–8.2)Neutropenia1.0 (0.4–2.5)3.1 (1.8–5.3)Lymphopenia0.7 (0.2–2.2)2.4 (1.3–4.4)CPK elevation5.2 (3.5–8.0)8.7 (6.3–12.1)Renal dysfunction0.5 (0.1–1.9)0.2 (0.0–1.7)EAIR, n/100 PY (95% CI)NMSCb1.2 (0.5–2.9)1.0 (0.4–2.5)Malignancy other than NMSCc1.2 (0.5–2.9)1.2 (0.5–2.9)Lymphomad0.5 (0.1–1.9)0MACE (adjudicated)0.2 (0–1.7)0.2 (0–1.7)VTE (adjudicated)0.2 (0–1.7)0.2 (0–1.7)aExcludes TB and HZ. bUPA 15 mg: 4 cases of BCC and 1 case of SCC of the skin; UPA 30 mg: 3 cases of BCC and 3 cases of SCC of the skin. cUPA 15 mg: 2 cases of prostate cancer, and single cases of malignant melanoma, ovarian cancer, and rectal cancer; UPA 30 mg: single cases of basosquamous carcinoma (considered NMSC after medical review), malignant melanoma, oropharyngeal SCC, and rectal adenocarcinoma, as well as endometrial cancer and ovarian cancer (in the same patient). dUPA 15 mg: 2 events of treatment-emergent abnormal lymphocyte morphology; abnormal lymphocytes were not reported in subsequent laboratory testingBCC, basal cell carcinoma; CI, confidence interval; NMSC, non-melanoma skin cancer; PY, patient-years; SCC, squamous cell carcinoma; TB, tuberculosisAcknowledgements:AbbVie funded this study; contributed to its design; participated in data collection, analysis, and interpretation of the data; and participated in the writing, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by Russell Craddock, PhD, of 2 the Nth (Cheshire, UK), and was funded by AbbVie.Disclosure of Interests:Philip J Mease Speakers bureau: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squib, Celgene, Eli Lilly, Galapagos, Genentech, Gilead, GSK, Janssen, Novartis, Pfizer, Sun Pharma, and UCB, Consultant of: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squib, Celgene, Eli Lilly, Galapagos, Genentech, Gilead, GSK, Janssen, Novartis, Pfizer, Sun Pharma, and UCB, Grant/research support from: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squib, Celgene, Eli Lilly, Galapagos, Genentech, Gilead, GSK, Janssen, Novartis, Pfizer, Sun Pharma, and UCB, Apinya Lertratanakul Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, Kim Papp Speakers bureau: AbbVie, Akros, Allergan, Almirall, Amgen, Bausch Health, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Dermavant, Dermira, Eli Lilly, Galderma, Genentech/Roche, Janssen, Kyowa Kirin, LEO, Meiji, MSD, Novartis, Pfizer, Regeneron, Sanofi Genzyme, Sienna Pharmaceuticals, Sun Pharma, Takeda, UCB, and Valeant, Consultant of: AbbVie, Akros, Allergan, Almirall, Amgen, Arcutis, Avillion, Bausch Health, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Dermavant, Dermira, Eli Lilly, Galderma, Genentech/Roche, GSK, Janssen, Kyowa Kirin, LEO, Meiji, MSD, Novartis, Pfizer, Regeneron, Sanofi Genzyme, Sienna Pharmaceuticals, Sun Pharma, Takeda, UCB, and Valeant, Grant/research support from: AbbVie, Akros, Allergan, Almirall, Amgen, Arcutis, Avillion, Bausch Health, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Dermavant, Dermira, Eli Lilly, Galderma, Genentech/Roche, GSK, Janssen, Kyowa Kirin, LEO, Meiji, MSD, Novartis, Pfizer, Regeneron, Sanofi Genzyme, Sienna Pharmaceuticals, Sun Pharma, Takeda, UCB, and Valeant, Filip van den Bosch Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Galapagos, Gilead, Janssen, Merck, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Galapagos, Gilead, Janssen, Merck, Novartis, Pfizer, and UCB, Shigeyoshi Tsuji Speakers bureau: AbbVie, Eli Lilly, Janssen, Novartis, and UCB., Consultant of: AbbVie, Eli Lilly, Janssen, Novartis, and UCB., Grant/research support from: AbbVie, Eli Lilly, Janssen, Novartis, and UCB., Eva Dokoupilova Grant/research support from: AbbVie, Affibody AB, Eli Lilly, Galapagos, Gilead, GSK, Hexal AG, MSD, Novartis, Pfizer, R-Pharm, Sanofi-Aventis, and UCB, MAURO KEISERMAN Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, and UCB, Grant/research support from: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, and UCB, Xianwei Bu Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, Liang Chen Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, Reva McCaskill Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, Patrick Zueger Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, Erin McDearmon-Blondell Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, Aileen Pangan Shareholder of: May own stock/shares in AbbVie, Employee of: Currently employed by AbbVie, William Tillett Speakers bureau: AbbVie, Amgen, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Amgen, Celgene, Eli Lilly, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Celgene, Eli Lilly, and Janssen
Collapse
|
12
|
Lai Z, Meng Y, Zhu Q, Wang F, Bu X, Li F, Wang W, Liu C, Wang F, Ho JC. High-Performance Flexible Self-Powered Photodetectors Utilizing Spontaneous Electron and Hole Separation in Quasi-2D Halide Perovskites. Small 2021; 17:e2100442. [PMID: 33891799 DOI: 10.1002/smll.202100442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/21/2021] [Indexed: 06/12/2023]
Abstract
Although there are recent advances in many areas of quasi-2D halide perovskites, photodetectors based on these materials still cannot achieve satisfactory performance for practical applications where high responsivity, fast response, self-powered nature, and excellent mechanical flexibility are urgently desired. Herein, utilizing one-step spin-coating method, self-assemble quasi-2D perovskite films with graded phase distribution in the order of increasing number of metal halide octahedral layers are successfully prepared. Gradient type-II band alignments along the out-of-plane direction of perovskites with spontaneous separation of photo-generated electrons and holes are obtained and then employed to construct self-powered vertical-structure photodetectors for the first time. Without any driving voltage, the device exhibits impressive performance with the responsivity up to 444 mA W-1 and ultrashort response time down to 52 µs. With a bias voltage of 1.5 V, the device responsivity becomes 3463 mA W-1 with the response speed as fast as 24 µs. Importantly, the device's mechanical flexibility is greatly enhanced since the photocurrent prefers flowing through the metal halide octahedral layers between the top and bottom contact electrodes in the vertical device structure, being more tolerant to film damage. These results evidently indicate the potential of graded quasi-2D perovskite phases for next-generation optoelectronic devices.
Collapse
Affiliation(s)
- Zhengxun Lai
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Qi Zhu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Fei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130021, China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Fangzhou Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Wei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Chuntai Liu
- Key Laboratory of Advanced Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
| |
Collapse
|
13
|
van Vollenhoven R, Takeuchi T, Aelion J, Chávez N, Mannucci Walter P, Singhal A, Swierkot J, Friedman A, Khan N, Li Y, Bu X, Klaff J, Strand V. POS0655 LONG-TERM SAFETY AND EFFICACY OF UPADACITINIB IN PATIENTS WITH RHEUMATOID ARTHRITIS: 3-YEAR RESULTS FROM THE SELECT-EARLY STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Upadacitinib (UPA), an oral Janus kinase inhibitor, demonstrated significant improvements in signs, symptoms, and structural inhibition as monotherapy (mono) vs methotrexate (MTX) in MTX-naïve patients (pts) with rheumatoid arthritis (RA) through 48 weeks (wks).1Objectives:To report the efficacy and safety of UPA vs MTX mono up to 156 wks in pts with RA from the ongoing long-term extension (LTE) of the SELECT-EARLY trial.Methods:During the 48-wk double-blind study period, pts were randomized to UPA 15 or 30 mg once daily (QD) or MTX (titrated to 20 mg/wk by Wk 8). At Wk 26, pts who did not achieve Clinical Disease Activity Index (CDAI) remission (≤2.8) and had <20% improvement from baseline in tender or swollen joint count received blinded rescue therapy (addition of MTX for UPA groups and UPA 15 or 30 mg for MTX group). In the LTE, pts received open-label treatment once the last pt reached Wk 48. Efficacy assessments up to Wk 156 were summarized by randomized group and included American College of Rheumatology (ACR) responses, remission and low disease activity (LDA) measures, and change in modified Total Sharp Score (mTSS; up to 96 wks). Treatment-emergent adverse events (AEs) per 100 pt-years (PY) for pts on continuous mono were summarized through 156 wks. Non-responder imputation was used for binary endpoints for missing data and when pts received rescue therapy or prematurely discontinued the study drug.Results:Of 945 pts randomized and treated, 775 entered the LTE on study drug (including 57 rescued pts; MTX, 33; UPA 15 mg, 17; UPA 30 mg, 7). Overall, 161 (21%) pts discontinued during the LTE. At Wk 156, higher proportions of pts randomized to UPA achieved a 20/50/70% improvement in ACR response (ACR20/50/70), LDA, and remission vs MTX (Figure 1). Change from baseline in mTSS at Wk 96 favored UPA vs MTX (data not shown). Most AEs were numerically more frequent with UPA 30 mg. The overall rate of serious infection was numerically higher with UPA vs MTX (Table 1). Herpes zoster (HZ), neutropenia, non-melanoma skin cancer (NMSC), and creatine phosphokinase (CPK) elevation were more frequent with UPA vs MTX. Two active tuberculosis (TB) events were reported in each UPA arm; 3 adjudicated gastrointestinal (GI) perforation events were observed in the UPA 30 mg arm. Adjudicated major adverse cardiovascular events (MACEs) or venous thromboembolic events (VTEs) were comparable across treatment arms.Conclusion:UPA monotherapy showed sustained clinically meaningful responses including remission vs MTX through Wk 156 but higher rates of several AEs, including HZ, neutropenia, and CPK elevations; no new safety risks were observed compared with previous results.1,2References:[1]van Vollenhoven R, et al. Ann Rheum Dis 2019;78:376–7; 2. Cohen SB, et al. Ann Rheum Dis 2020;annrheumdis-2020-218510.Table 1.Safety overviewE/100 PY (95% CI)MTX mono(n=314; PY=601.9)UPA 15 mg QD mono(n=317; PY=703.4)UPA 30 mg QD mono(n=314; PY=687.6)Any AE240.2(228.0, 252.9)268.0(256.0, 280.4)292.5(279.8, 305.5)Any serious AE10.8 (8.3, 13.8)12.2 (9.8, 15.1)16.3 (13.4, 19.6)Any AE leading to discontinuation of study drug6.5 (4.6, 8.9)7.3 (5.4, 9.5)7.7 (5.8, 10.1)Any deatha0.7 (0.2, 1.7)0.9 (0.3, 1.9)1.0 (0.4, 2.1)Serious infection2.5 (1.4, 4.1)3.3 (2.1, 4.9)4.4 (2.9, 6.2)Opportunistic infection excluding TB and HZ0.2 (0.0, 0.9)0.1 (0.0, 0.8)0.3 (0.0, 1.1)HZ0.8 (0.3, 1.9)4.5 (3.1, 6.4)4.7 (3.2, 6.6)Active TB00.3 (0.0, 1.0)0.3 (0.0, 1.1)NMSC00.4 (0.1, 1.2)1.0 (0.4, 2.1)Malignancy other than NMSC1.0 (0.4, 2.2)0.6 (0.2, 1.5)1.2 (0.5, 2.3)Hepatic disorder14.1 (11.3, 17.5)12.5 (10.0, 15.4)15.0 (12.2, 18.2)GI perforationb000.4 (0.1, 1.3)Neutropenia2.2 (1.2, 3.7)4.5 (3.1, 6.4)5.7 (4.0, 7.8)CPK elevation1.8 (0.9, 3.3)7.7 (5.8, 10.0)15.4 (12.6, 18.6)MACEb0.3 (0.0, 1.2)0.4 (0.1, 1.2)0.6 (0.2, 1.5)VTEb0.3 (0.0, 1.2)0.4 (0.1, 1.2)0.6 (0.2, 1.5)Data were censored at the time of MTX or UPA addition for rescued ptsaIncludes treatment-emergent (≤30 days after the last dose of study drug) and non-treatment-emergent deaths. bAdjudicatedAcknowledgements:AbbVie funded this study; contributed to its design; participated in data collection, analysis, and interpretation of the data; and in the writing, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by Russell Craddock, PhD, of 2 the Nth (Cheshire, UK), and was funded by AbbVie.Disclosure of Interests:Ronald van Vollenhoven Speakers bureau: AbbVie, AstraZeneca, Biotest, Bristol-Myers Squibb, Galapagos, Gilead, GSK, Janssen, Pfizer, Sanofi, Servier, UCB, and Viela Bio, Consultant of: AbbVie, AstraZeneca, Biogen, Biotest, Bristol-Myers Squibb, Galapagos, Gilead, GSK, Janssen, Pfizer, Sanofi, Servier, UCB, and Viela Bio, Grant/research support from: Bristol-Myers Squibb, GSK, Eli Lilly, Pfizer, Roche, and UCB, Tsutomu Takeuchi Speakers bureau: AbbVie, AYUMI, Bristol-Myers Squibb, Chugai, Daiichi Sankyo, Dainippon Sumitomo, Eisai, Gilead, Mitsubishi Tanabe, Novartis, Pfizer, and Sanofi, Consultant of: Astellas, Chugai, and Eli Lilly, Grant/research support from: AbbVie, Asahi Kasei, Astellas, Chugai, Daiichi Sankyo, Eisai, Mitsubishi Tanabe, Nippon Kayaku, Shionogi, Takeda, and UCB, Jacob Aelion Grant/research support from: AbbVie, Amgen, AstraZeneca, Bristol-Myers Squibb, Celgene, Eli Lilly, Galapagos/Gilead, Genentech, GSK, Horizon, Janssen, Mallinckrodt, Nektar, Nichi-Iko, Novartis, Pfizer, Regeneron, Roche, Sanofi, Selecta, and UCB, Nilmo Chávez Speakers bureau: AbbVie, Janssen, and Pfizer, Consultant of: AbbVie, Janssen, and Pfizer, Grant/research support from: AbbVie, Galapagos, Gilead, Pfizer, and Sanofi, Pablo Mannucci Walter Consultant of: AbbVie, Grant/research support from: AbbVie, Bristol-Myers Squibb, Eli Lilly, Genentech/Roche, GSK, Janssen, and UCB, Atul Singhal Consultant of: AbbVie, Aclaris, Amgen, AstraZeneca, Bristol-Myers Squibb, Eli Lilly, Gilead, Idorsia, Novartis, Oscotec, Pfizer, Regeneron, Roche/Genentech, Sanofi, Selecta, Takeda, UCB, and Viela Bio, Grant/research support from: AbbVie, Aclaris, Amgen, AstraZeneca, Bristol-Myers Squibb, Eli Lilly, Gilead, Idorsia, Novartis, Oscotec, Pfizer, Regeneron, Roche/Genentech, Sanofi, Selecta, Takeda, UCB, and Viela Bio, Jerzy Swierkot Speakers bureau: AbbVie, Accord, BMS, Janssen, MSD, Pfizer, Roche, Sandoz, and UCB, Consultant of: AbbVie, Accord, BMS, Janssen, MSD, Pfizer, Roche, Sandoz, and UCB, Grant/research support from: AbbVie, Accord, BMS, Janssen, MSD, Pfizer, Roche, Sandoz, and UCB, Alan Friedman Shareholder of: May own stock or options in AbbVie, Employee of: AbbVie, Nasser Khan Shareholder of: May own stocks or options in AbbVie, Employee of: AbbVie, Yihan Li Shareholder of: May own stocks or options in AbbVie, Employee of: AbbVie, Xianwei Bu Shareholder of: May own stocks or options in AbbVie, Employee of: AbbVie, Justin Klaff Shareholder of: May own stock or options in AbbVie, Employee of: AbbVie, Vibeke Strand Consultant of: AbbVie, Amgen, Arena, AstraZeneca, Bayer, Bristol-Myers Squibb, Boehringer Ingelheim, Celltrion, Eli Lilly, Genentech/Roche, Gilead, GSK, Ichnos, Inmedix, Janssen, Kiniksa, MSD, Myriad Genetics, Novartis, Pfizer, Regeneron, Sandoz, Sanofi, Setpoint, and UCB
Collapse
|
14
|
Fleischmann R, Mysler E, Bessette L, Peterfy C, Durez P, Tanaka Y, Swierkot J, Khan N, Bu X, LI Y, Song IH. POS0087 LONG-TERM SAFETY AND EFFICACY OF UPADACITINIB OR ADALIMUMAB IN PATIENTS WITH RHEUMATOID ARTHRITIS: RESULTS AT 3 YEARS FROM THE SELECT-COMPARE STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:In the SELECT-COMPARE study, the Janus kinase inhibitor, upadacitinib (UPA), demonstrated significant improvements in the signs and symptoms of rheumatoid arthritis (RA) when administered at 15 mg once daily (QD) on background methotrexate (MTX) compared with adalimumab (ADA) plus MTX at Week 12 that were maintained through 72 weeks in patients with prior inadequate response to MTX.1Objectives:To assess the long-term safety and efficacy of UPA vs ADA over 3 years in the ongoing long-term extension (LTE).Methods:Patients receiving background MTX were randomized 2:2:1 to UPA 15 mg QD, placebo (PBO), or ADA 40 mg every other week. Between Weeks 14-26, rescue was mandated for either lack of response (<20% improvement in tender or swollen joint counts: Weeks 14, 18, 22) or failure to achieve a targeted disease outcome (CDAI low disease activity: Week 26). Patients who completed the 48-week double-blind period could enter an LTE for up to 10 years total. This analysis describes patients through 3 years of treatment. Treatment-emergent adverse events (TEAEs) per 100 patient years (PY), including events of special interest (AESI), were summarized up to 3 years based on exposure to UPA and to ADA. Efficacy was analyzed by original randomized groups. Patients who were rescued or prematurely discontinued study drug were categorized as non-responders for visits after rescue or discontinuation. Descriptive analyses were performed without formal statistical comparisons.Results:In total, 651, 651, and 327 patients were randomized at baseline to receive UPA, PBO, and ADA, respectively. Between Weeks 14-26, 252 (39%) patients were rescued from UPA to ADA, 159 (49%) were rescued from ADA to UPA, and all PBO patients were switched to UPA by Week 26.1 A higher proportion of patients randomized to UPA completed 3 years without rescue compared to those randomized to ADA (47% vs 36%, respectively). UPA was generally well-tolerated as assessed by the rates of TEAEs, including serious AEs, AEs leading to discontinuation of study drug, and AESIs, including serious and opportunistic infections, malignancies, adjudicated major adverse cardiac events or venous thromboembolism; Figure 1). Consistent with previous analyses, the event rates of AESIs were generally comparable between the UPA and ADA groups, while herpes zoster, lymphopenia, hepatic disorder, and CPK elevation were reported at higher rates with UPA. Consistent with earlier time points, greater proportions of patients randomized to UPA achieved low disease activity and remission at 3 years based on CDAI, as well as DAS28(CRP) ≤3.2 or <2.6, compared with patients randomized to ADA (Table 1).Conclusion:The safety profile of UPA was consistent with the results reported previously and with the integrated Phase 3 safety analysis.1,2 Higher levels of clinical response continued to be observed with UPA vs ADA through 3 years of treatment.References:[1]Fleischmann R, et al. Ann Rheum Dis 2020;79:323.[2]Cohen SB, et al. Ann Rheum Dis 2020; doi: 10.1136/annrheumdis-2020-218510.Table 1.Efficacy Endpoints at 3 Years (NRI)Endpoints, % (95% CI)UPA 15 mg QDN=651*ADA 40 mg EOWN=327*CDAI ≤1039 (36, 43)29 (24, 34)CDAI ≤2.824 (21, 28)17 (12, 21)DAS28(CRP) ≤3.237 (33, 41)26 (21, 31)DAS28(CRP) <2.632 (29, 36)22 (17, 26)ADA, adalimumab; CI, confidence interval; DAS28(CRP), Disease Activity Score for 28-joints C-Reactive Protein; CDAI, clinical disease activity index; EOW, every other week; NRI, non-responder imputation; QD, once daily; UPA, upadacitinib.*Patients who were rescued prior to/at Week 26 were considered non-responders. 252/651 and 159/327 patients were rescued of those randomized to UPA and ADA, respectively.Acknowledgements:AbbVie and the authors thank the patients, trial sites, and investigators who participated in this clinical trial. AbbVie, Inc was the trial sponsor, contributed to trial design, data collection, analysis & interpretation, and to writing, reviewing, and approval of final version. No honoraria or payments were made for authorship. The authors thank Dr. Tim Shaw of AbbVie Inc. for his support with the interpretation of the data. Medical writing support was provided by Ramona Vladea, PhD, of AbbVie, Inc.Disclosure of Interests:Roy Fleischmann Consultant of: AbbVie, Amgen, Bristol-Myers Squibb, Eli Lilly, GSK, Janssen, Novartis, Pfizer Inc, Sanofi-Aventis, and UCB, Grant/research support from: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Eli Lilly, Genentech, Janssen, Novartis, Pfizer Inc, Regeneron, Roche, Sanofi-Aventis and UCB, Eduardo Mysler Consultant of: AbbVie, AstraZeneca, Lilly, Pfizer, Roche, BMS, Sandoz, GSK, Janssen, Grant/research support from: AbbVie, AstraZeneca, Lilly, Pfizer, Roche, BMS, Sandoz, GSK, Janssen, Louis Bessette Consultant of: Amgen, BMS, Janssen, Roche, UCB, AbbVie, Pfizer, Merck, Celgene, Sanofi, Eli Lilly, Novartis, Gilead, Grant/research support from: Amgen, BMS, Janssen, Roche, UCB, AbbVie, Pfizer, Merck, Celgene, Sanofi, Eli Lilly, Novartis, Gilead, Charles Peterfy Shareholder of: Spire Sciences, Inc, Speakers bureau: Amgen, Bristol-Myers Squibb, Consultant of: Aclaris, Centrexion, Daiichi Sankyo, EMD, Serono, Five Prime, Flexion Therapeutics, Genentech, Gilead, GlaxoSmithKline, Istresso, Eli Lilly, Myriad Genetics, Novartis, Roche, SetPoint, Sorrento, UCB, Employee of: Spire Sciences, Inc, Patrick Durez Speakers bureau: BMS, Sanofi, Eli Lilly, Celltrion, Yoshiya Tanaka Speakers bureau: Daiichi-Sankyo, Astellas, Chugai, Eli Lilly, Pfizer, AbbVie, YL Biologics, Bristol-Myers, Takeda, Mitsubishi-Tanabe, Novartis, Eisai, Janssen, Teijin, Consultant of: Daiichi-Sankyo, Astellas, Chugai, Eli Lilly, Pfizer, AbbVie, YL Biologics, Bristol-Myers, Takeda, Mitsubishi-Tanabe, Novartis, Eisai, Janssen, Teijin, Grant/research support from: Asahi-kasei, Mitsubishi-Tanabe, Chugai, Takeda, Sanofi, Bristol-Myers, UCB, Daiichi-Sankyo, Eisai, Ono, Jerzy Swierkot Speakers bureau: AbbVie, Sandoz, Pfizer, Roche, BMS, UCB, MSD, Accord, Janssen, Consultant of: AbbVie, Sandoz, Pfizer, Roche, BMS, UCB, MSD, Accord, Janssen, Grant/research support from: AbbVie, Sandoz, Pfizer, Roche, BMS, UCB, MSD, Accord, Janssen, Nasser Khan Shareholder of: AbbVie, Employee of: AbbVie, Xianwei Bu Shareholder of: AbbVie, Employee of: AbbVie, Yihan Li Shareholder of: AbbVie, Employee of: AbbVie, In-Ho Song Shareholder of: AbbVie, Employee of: AbbVie.
Collapse
|
15
|
Quan Q, Lai Z, Bao Y, Bu X, Meng Y, Wang W, Takahashi T, Hosomi T, Nagashima K, Yanagida T, Liu C, Lu J, Ho JC. Self-Anti-Stacking 2D Metal Phosphide Loop-Sheet Heterostructures by Edge-Topological Regulation for Highly Efficient Water Oxidation. Small 2021; 17:e2006860. [PMID: 33480477 DOI: 10.1002/smll.202006860] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/08/2020] [Indexed: 06/12/2023]
Abstract
2D metal phosphide loop-sheet heterostructures are controllably synthesized by edge-topological regulation, where Ni2 P nanosheets are edge-confined by the N-doped carbon loop, containing ultrafine NiFeP nanocrystals (denoted as NiFeP@NC/Ni2 P). This loop-sheet feature with lifted-edges prevents the stacking of nanosheets and induces accessible open channels for catalytic site exposure and gas bubble release. Importantly, these NiFeP@NC/Ni2 P hybrids exhibit a remarkable oxygen evolution activity with an overpotential of 223 mV at 20 mA cm-2 and a Tafel slope of 46.1 mV dec-1 , constituting the record-high performance among reported metal phosphide electrocatalysts. The NiFeP@NC/Ni2 P hybrids are also employed as both anode and cathode to achieve an alkaline electrolyzer for overall water splitting, delivering a current density of 10 mA cm-2 with a voltage of 1.57 V, comparable to that of the commercial Pt/C||RuO2 couple (1.56 V). Moreover, a photovoltaic-electrolysis coupling system can as well be effectively established for robust overall water splitting. Evidently, this ingenious protocol would expand the toolbox for designing efficient 2D nanomaterials for practical applications.
Collapse
Affiliation(s)
- Quan Quan
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Zhengxun Lai
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yan Bao
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Wei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Tsunaki Takahashi
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo, 113-8654, Japan
| | - Takuro Hosomi
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo, 113-8654, Japan
| | - Kazuki Nagashima
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo, 113-8654, Japan
| | - Takeshi Yanagida
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo, 113-8654, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
| | - Chuntai Liu
- Key Laboratory of Advanced Materials Processing & Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, China
| | - Jian Lu
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen, 518057, China
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 816-8580, Japan
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong SAR, 999077, China
| |
Collapse
|
16
|
Lan C, Yip S, Kang X, Meng Y, Bu X, Ho JC. Gate Bias Stress Instability and Hysteresis Characteristics of InAs Nanowire Field-Effect Transistors. ACS Appl Mater Interfaces 2020; 12:56330-56337. [PMID: 33287538 DOI: 10.1021/acsami.0c17317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Because of the excellent electrical properties, III-V semiconductor nanowires are promising building blocks for next-generation electronics; however, their rich surface states inevitably contribute large amounts of charge traps, leading to gate bias stress instability and hysteresis characteristics in nanowire field-effect transistors (FETs). Here, we investigated thoroughly the gate bias stress and hysteresis effects in InAs nanowire FETs. It is observed that the output current decreases together with the threshold voltage shifting to the positive direction when a positive gate bias stress is applied, and vice versa for the negative gate bias stress. For double-sweep transfer characteristics, the significant hysteresis behavior is observed, depending heavily on the sweeping rate and range. On the basis of complementary investigations of these devices, charge traps are confirmed to be the dominant factor for these instability effects. Importantly, the hysteresis can be simulated well by utilizing a combination of the rate equation for electron density and the empirical model for electron mobility. This provides an accurate evaluation of carrier mobility, which is in distinct contrast to the overestimation of mobility when using the transconductance for calculation. All these findings are important for understanding the charge trap dynamics to further enhance the device performance of nanowire FETs.
Collapse
Affiliation(s)
- Changyong Lan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, and School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | | | | | | | | | - Johnny C Ho
- Key Laboratory of Advanced Materials Processing & Mold (Zhengzhou University), Ministry of Education, Zhengzhou 450002, P. R. China
| |
Collapse
|
17
|
Meng Y, Li F, Lan C, Bu X, Kang X, Wei R, Yip S, Li D, Wang F, Takahashi T, Hosomi T, Nagashima K, Yanagida T, Ho JC. Artificial visual systems enabled by quasi-two-dimensional electron gases in oxide superlattice nanowires. Sci Adv 2020; 6:6/46/eabc6389. [PMID: 33177088 PMCID: PMC7673733 DOI: 10.1126/sciadv.abc6389] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/23/2020] [Indexed: 05/27/2023]
Abstract
Rapid development of artificial intelligence techniques ignites the emerging demand on accurate perception and understanding of optical signals from external environments via brain-like visual systems. Here, enabled by quasi-two-dimensional electron gases (quasi-2DEGs) in InGaO3(ZnO)3 superlattice nanowires (NWs), an artificial visual system was built to mimic the human ones. This system is based on an unreported device concept combining coexistence of oxygen adsorption-desorption kinetics on NW surface and strong carrier quantum-confinement effects in superlattice core, to resemble the biological Ca2+ ion flux and neurotransmitter release dynamics. Given outstanding mobility and sensitivity of superlattice NWs, an ultralow energy consumption down to subfemtojoule per synaptic event is realized in quasi-2DEG synapses, which rivals that of biological synapses and now available synapse-inspired electronics. A flexible quasi-2DEG artificial visual system is demonstrated to simultaneously perform high-performance light detection, brain-like information processing, nonvolatile charge retention, in situ multibit-level memory, orientation selectivity, and image memorizing.
Collapse
Affiliation(s)
- You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Fangzhou Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Changyong Lan
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Xiaolin Kang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Renjie Wei
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
| | - SenPo Yip
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
| | - Dapan Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Fei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Tsunaki Takahashi
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo 113-8654, Japan
| | - Takuro Hosomi
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo 113-8654, Japan
| | - Kazuki Nagashima
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo 113-8654, Japan
| | - Takeshi Yanagida
- Department of Applied Chemistry, School of Engineering, University of Tokyo, Tokyo 113-8654, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR.
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
| |
Collapse
|
18
|
Meng Y, Lai Z, Li F, Wang W, Yip S, Quan Q, Bu X, Wang F, Bao Y, Hosomi T, Takahashi T, Nagashima K, Yanagida T, Lu J, Ho JC. Perovskite Core-Shell Nanowire Transistors: Interfacial Transfer Doping and Surface Passivation. ACS Nano 2020; 14:12749-12760. [PMID: 32910641 DOI: 10.1021/acsnano.0c03101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
While halide perovskite electronics are rapidly developing, they are greatly limited by the inferior charge transport and poor stability. In this work, effective surface charge transfer doping of vapor-liquid-solid (VLS)-grown single-crystalline cesium lead bromide perovskite (CsPbBr3) nanowires (NWs) via molybdenum trioxide (MoO3) surface functionalization is achieved. Once fabricated into NW devices, due to the efficient interfacial charge transfer and reduced impurity scattering, a 15× increase in the field-effect hole mobility (μh) from 1.5 to 23.3 cm2/(V s) is accomplished after depositing the 10 nm thick MoO3 shell. This enhanced mobility is already better than any mobility value reported for perovskite field-effect transistors (FETs) to date. The photodetection performance of these CsPbBr3/MoO3 core-shell NWs is also investigated to yield a superior responsivity (R) up to 2.36 × 103 A/W and an external quantum efficiency (EQE) of over 5.48 × 105% toward the 532 nm regime. Importantly, the MoO3 shell can provide excellent surface passivation to the CsPbBr3 NW core that minimizes the diffusion of detrimental water and oxygen molecules, improving the air stability of CsPbBr3/MoO3 core-shell NW devices. All these findings evidently demonstrate the surface doping as an enabling technology to realize high-mobility and air-stable low-dimensional halide perovskite devices.
Collapse
Affiliation(s)
| | | | | | | | - SenPo Yip
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
| | | | - Xiuming Bu
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
| | | | - Yan Bao
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Takuro Hosomi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan
| | - Tsunaki Takahashi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan
| | - Kazuki Nagashima
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan
| | - Takeshi Yanagida
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan
| | - Jian Lu
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR
| | - Johnny C Ho
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
| |
Collapse
|
19
|
Lai Z, Dong R, Zhu Q, Meng Y, Wang F, Li F, Bu X, Kang X, Zhang H, Quan Q, Wang W, Wang F, Yip S, Ho JC. Bication-Mediated Quasi-2D Halide Perovskites for High-Performance Flexible Photodetectors: From Ruddlesden-Popper Type to Dion-Jacobson Type. ACS Appl Mater Interfaces 2020; 12:39567-39577. [PMID: 32805871 DOI: 10.1021/acsami.0c09651] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Quasi-2D halide perovskites, especially the Ruddlesden-Popper perovskites (RPPs), have attracted great attention because of their promising properties for optoelectronics; however, there are still serious drawbacks, such as inefficient charge transport, poor stability, and unsatisfactory mechanical flexibility, restricting further utilization in advanced technologies. Herein, high-quality quasi-2D halide perovskite thin films are successfully synthesized with the introduction of the unique bication ethylenediammonium (EDA) via a one-step spin-coating method. This bication EDA, with short alkyl chain length, can not only substitute the typically bulky and weakly van der Waals-interacted organic bilayer spacer cations forming the novel Dion-Jacobson phase to enhance the mechanical flexibility of the quasi-2D perovskite (e.g., EDA(MA)n-1PbnI3n+1; MA = CH3NH3+) but also serve as a normal cation to achieve the more intact films (e.g., (iBA)2(MA)3-2x(EDA)xPb4I13). When fabricated into photodetectors, these optimized EDA-based perovskites deliver an excellent responsivity of 125 mA/W and a fast response time down to 380 μs under 532 nm irradiation. More importantly, the device with the Dion-Jacobson phase perovskite can be bent down to a radius of 2 mm and processed with 10,000 cycles of the bending test without any noticeable performance degradation because of its superior structure to RPPs. Besides, these films do not exhibit any material deterioration after ambient storage for 30 days. All these performance parameters are already comparable or even better than those of the state-of-the-art RPPs recently reported. This work provides valuable design guidelines of the quasi-2D perovskites to obtain high-performance flexible photodetectors for next-generation optoelectronics.
Collapse
Affiliation(s)
- Zhengxun Lai
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Ruoting Dong
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Qi Zhu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - You Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Fei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Dongnanhu Road, Changchun 130021, P. R. China
| | - Fangzhou Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Xiuming Bu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Xiaolin Kang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Heng Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Quan Quan
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Wei Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - SenPo Yip
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
| | - Johnny C Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
- Centre for Functional Photonics, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, P. R. China
- Key Laboratory of Advanced Materials Processing & Mold (Zhengzhou University), Ministry of Education, Zhengzhou 450002, P. R. China
| |
Collapse
|
20
|
Li F, Meng Y, Kang X, Yip S, Bu X, Zhang H, Ho JC. High-mobility In and Ga co-doped ZnO nanowires for high-performance transistors and ultraviolet photodetectors. Nanoscale 2020; 12:16153-16161. [PMID: 32700718 DOI: 10.1039/d0nr03740k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Due to their unique properties, ZnO nanostructures have received considerable attention for application in electronics and optoelectronics; however, intrinsic ZnO nanomaterials usually suffer from large concentrations of lattice defects, such as oxygen vacancies, which restricts their material performance. Here, for the first time, highly-crystalline In and Ga co-doped ZnO nanowires (NWs) are achieved by ambient-pressure chemical vapor deposition. In contrast to conventional elemental doping, this In and Ga co-doping can not only enhance the carrier concentration, but also suppresses the formation of oxygen vacancies within the host lattice of ZnO NWs. Importantly, this co-doping is also believed to effectively minimize the generation of lattice strain defects due to the optimal ionic sizes of both In and Ga dopants. When configured into field-effect transistors (FETs), these co-doped NWs exhibit an enhanced average electron mobility of 315 cm2 V-1 s-1 and an impressive on/off current ratio of 1.87 × 108, which are already higher than those of other previously reported ZnO NW devices. In addition, these NW devices demonstrate efficient ultraviolet photodetection at under 261 nm irradiation with an improved responsivity of 1.41 × 107 A W-1, an excellent EQE of up to 6.72 × 109 and a fast response time down to 0.32 s. Highly-ordered NW parallel array thin-film transistors and photodetectors are also constructed to demonstrate the promising potential of the NWs for high-performance device applications.
Collapse
Affiliation(s)
- Fangzhou Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong SAR.
| | | | | | | | | | | | | |
Collapse
|
21
|
Coates LC, Tillett W, D’agostino MA, Rahman P, Behrens F, Conaghan PG, Mcdearmon-Blondell E, Bu X, Chen L, Kapoor M, Mease PJ. OP0050 ADALIMUMAB INTRODUCTION VERSUS METHOTREXATE DOSE ESCALATION IN PATIENTS WITH INADEQUATELY CONTROLLED PSORIATIC ARTHRITIS: RESULTS FROM RANDOMIZED PHASE 4 CONTROL STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Methotrexate (MTX) is often used as first-line therapy for patients (pts) with psoriatic arthritis (PsA) despite limited efficacy and data on appropriate dosage. Minimal Disease Activity (MDA) is suggested as an optimal treat-to-target outcome. Biologic disease-modifying antirheumatic drugs (bDMARDs) have demonstrated improved outcomes (including MDA rates) over MTX. However, more data are needed to define the optimal timing of bDMARD initiation and characterize efficacy of MTX dose escalation, to achieve optimal outcomes.Objectives:To compare achievement of MDA between adding adalimumab (ADA) vs escalating MTX dose in PsA pts with inadequate disease control after initial MTX therapy.Methods:The open-label, 2-part CONTROL study enrolled bDMARD-naive adult pts with active PsA (not in MDA at screening and ≥3 tender and ≥3 swollen joints) despite MTX 15 mg every wk (ew) for ≥4 wks. Pts were randomized to ADA 40 mg every other wk + MTX 15 mg (ADA+MTX) or escalated MTX to 20–25 mg ew or highest tolerable dose during 16-wk part 1 (Fig 1). The primary endpoint was achievement of MDA, defined as fulfilling ≥5 of the 7 criteria: tender joint count 68 (TJC68) ≤1, swollen joint count 66 (SJC66) ≤1, Psoriasis Area Severity Index (PASI) ≤1 or body surface area (BSA) ≤3%, pt’s pain (visual analogue scale [VAS] 0–100) ≤15, Pt’s Global Assessment of disease activity (PtGA) VAS ≤20, Health Assessment Questionnaire Disability Index (HAQ-DI) ≤0.5 and tender entheseal points (0–8) ≤1. Key secondary efficacy endpoints were achievement of ACR20 and PASI75 and change from baseline in HAQ-DI and Leeds Enthesitis Index (LEI) at wk 16.Results:Overall, 246 pts were randomized; 245 received treatment (ADA+MTX, n=123; escalated MTX, n=122); 117 (95%) pts and 110 (90%) pts, respectively, completed part 1. Baseline characteristics were similar between groups (Table). During part 1, the average dose of MTX was 21.8 mg/wk (55% on oral MTX) in the escalated MTX group. Significantly higher proportion of pts in ADA+MTX (42%) vs escalated MTX (13%) group achieved MDA at wk 16 (non-responder imputation [NRI]; difference [95% CI] 28% [18%–39%];P<0.001;Fig 2). Observed case analysis confirmed the NRI analysis. Lower MDA rates at wk 16 were observed in the escalated MTX arm regardless of prior MTX duration (Fig 2). Significant improvements in key secondary endpoints were also observed with ADA+MTX vs escalated MTX (allP<0.05;Fig 2). In part 1, the proportion of patients with adverse events was similar between groups (ADA+MTX, 62% vs escalated MTX, 57%); no opportunistic infections, tuberculosis, malignancies, or deaths were reported during part 1.Conclusion:A significantly higher proportion of pts achieved MDA at wk 16 after introducing ADA compared with escalating MTX dose; higher rates were observed regardless of prior MTX duration. Significantly higher responses in musculoskeletal, skin, and quality of life measures were observed with ADA+MTX vs escalated MTX. No new safety signals with ADA were identified in this pt population.Table 1.Baseline DemographicsCharacteristics, mean (SD)ADA+MTXn=123Escalated MTXn=122Female, n (%)64 (52.0)59 (48.4)Age, y51.4 (12.2)48.8 (12.7)BSA >3%, n (%)74 (60.2)78 (63.9)Pt pain63.7 (19.5)62.3 (20.9)PtGA65.0 (19.9)62.9 (20.9)HAQ-DI1.2 (0.6)1.2 (0.7)LEI + plantar count3.5 (2.1)3.5 (2.1)Disclosure of Interests:Laura C Coates: None declared, William Tillett Grant/research support from: AbbVie, Celgene, Eli Lilly, Janssen, Novartis, Pfizer Inc, UCB, Consultant of: AbbVie, Amgen, Celgene, Lilly, Janssen, Novartis, MSD, Pfizer Inc, UCB, Speakers bureau: AbbVie, Amgen, Celgene, Lilly, Janssen, Novartis, Pfizer Inc, UCB, Maria Antonietta D’Agostino Consultant of: AbbVie, BMS, Novartis, and Roche, Speakers bureau: AbbVie, BMS, Novartis, and Roche, Proton Rahman Grant/research support from: Janssen and Novartis, Consultant of: Abbott, AbbVie, Amgen, BMS, Celgene, Lilly, Janssen, Novartis, and Pfizer., Speakers bureau: Abbott, AbbVie, Amgen, BMS, Celgene, Lilly, Janssen, Novartis, Pfizer, Frank Behrens Grant/research support from: Pfizer, Janssen, Chugai, Celgene, Lilly and Roche, Consultant of: Pfizer, AbbVie, Sanofi, Lilly, Novartis, Genzyme, Boehringer, Janssen, MSD, Celgene, Roche and Chugai, Philip G Conaghan Consultant of: AbbVie, BMS, Eli Lilly, EMD Serono, Flexion Therapeutics, Galapagos, GSK, Novartis, Pfizer, Speakers bureau: AbbVie, Eli Lilly, Novartis, Pfizer, Erin McDearmon-Blondell Shareholder of: AbbVie, Employee of: AbbVie, Xianwei Bu Shareholder of: AbbVie, Employee of: AbbVie, Liang Chen Shareholder of: AbbVie, Employee of: AbbVie, Mudra Kapoor Shareholder of: AbbVie, Employee of: AbbVie, Philip J Mease Grant/research support from: Abbott, Amgen, Biogen Idec, BMS, Celgene Corporation, Eli Lilly, Novartis, Pfizer, Sun Pharmaceutical, UCB – grant/research support, Consultant of: Abbott, Amgen, Biogen Idec, BMS, Celgene Corporation, Eli Lilly, Novartis, Pfizer, Sun Pharmaceutical, UCB – consultant, Speakers bureau: Abbott, Amgen, Biogen Idec, BMS, Eli Lilly, Genentech, Janssen, Pfizer, UCB – speakers bureau
Collapse
|
22
|
Chu D, Zhang J, Bu X, Dang C, Wang W, Zhang Z. Body mass index, tumour location, and colorectal cancer survival. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz421.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
23
|
Bu X, Chiang C, Wei R, Li Z, Meng Y, Peng C, Lin Y, Li Y, Lin Y, Chan KS, Ho JC. Two-Dimensional Cobalt Phosphate Hydroxide Nanosheets: A New Type of High-Performance Electrocatalysts with Intrinsic CoO 6 Lattice Distortion for Water Oxidation. ACS Appl Mater Interfaces 2019; 11:38633-38640. [PMID: 31550123 DOI: 10.1021/acsami.9b11594] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the recent advances in electrochemical water splitting, developing cost-effective and highly efficient electrocatalysts for oxygen evolution reaction (OER) still remains a substantial challenge. Herein, two-dimensional cobalt phosphate hydroxides (Co5(PO4)2(OH)4) nanosheets, a unique stacking-disordered phosphate-based inorganic material, are successfully prepared via a facile and scalable method for the first time to serve as a superior and robust electrocatalyst for water oxidation. On the basis of the detailed characterization (e.g., X-ray absorption near-edge structure and X-ray photoelectron spectroscopy), the obtained nanosheets consist of special zigzag CoO6 octahedral chains along with intrinsic lattice distortion and excellent hydrophilicity, in which these factors contribute to the highly efficient performance of prepared electrocatalysts for OER. Specifically, Co5(PO4)2(OH)4 deposited on glassy carbon electrode (loading amount ≈0.553 mg cm-2) can exhibit an unprecedented overpotential of 254 mV to drive a current density of 10 mA cm-2 with a small Tafel slope of 57 mV dec-1 in alkaline electrolytes, which outperforms the ones of CO3(PO4)2 (370 mV) and Co(OH)2 (360 mV) as well as other advanced catalysts. Evidently, this work has opened a new pathway to the rational design of promising metal phosphate hydroxides toward the efficient electrochemical energy conversion.
Collapse
Affiliation(s)
| | - ChaoLung Chiang
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan , ROC
| | | | | | | | - ChunKuo Peng
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan , ROC
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan , ROC
| | - YuChang Lin
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan , ROC
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan , ROC
| | | | - YanGu Lin
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan , ROC
| | | | - Johnny C Ho
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P.R. China
| |
Collapse
|
24
|
Chu D, Zhang Z, Zhang J, Wang Y, Li Y, Bu X, Li E, Zhang J. Positive feedback activation of notch signal by obesity enhances colorectal tumorigenicity. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz269.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
25
|
Wei R, Bu X, Gao W, Villaos RAB, Macam G, Huang ZQ, Lan C, Chuang FC, Qu Y, Ho JC. Engineering Surface Structure of Spinel Oxides via High-Valent Vanadium Doping for Remarkably Enhanced Electrocatalytic Oxygen Evolution Reaction. ACS Appl Mater Interfaces 2019; 11:33012-33021. [PMID: 31414595 DOI: 10.1021/acsami.9b10868] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Spinel oxides (AB2O4) with unique crystal structures have been widely explored as promising alternative catalysts for efficient oxygen evolution reactions; however, developing novel methods to fabricate robust, cost-effective, and high-performance spinel oxide based electrocatalysts is still a great challenge. Here, utilizing a complementary experimental and theoretical approach, pentavalent vanadium doping in the spinel oxides (i.e., Co3O4 and NiFe2O4) has been thoroughly investigated to engineer their surface structures for the enhanced electrocatalytic oxygen evolution reaction. Specifically, when the optimal concentration of vanadium (ca. 7.7 at. %) is incorporated into Co3O4, the required overpotential to reach a certain jGEOM and jECSA decreases dramatically for oxygen evolution reactions in alkaline media. Even after 30 h of chronopotentiometry, the required potential for V-doped Co3O4 just increases by 16.3 mV, being much lower than that of the undoped one. It is observed that the pentavalent vanadium doping introduces lattice distortions and defects on the surface, which in turn exposes more active sites for reactions. DFT calculations further reveal the rate-determining step changing from the step of *-O to *-OOH to the step of *-OH to *-O, while the corresponding energy barriers decrease from 1.73 to 1.57 eV accordingly after high-valent V doping. Moreover, the oxygen intermediate probing method using methanol as a probing reagent also demonstrates a stronger OH* adsorption on the surface after V doping. When vanadium doping is performed in the inverse spinel matrix of NiFe2O4, impressive performance enhancement in the oxygen evolution reaction is as well witnessed. All these results clearly illustrate that the V doping process can not only efficiently improve the electrochemical properties of spinel transition metal oxides but also provide new insights into the design of high-performance water oxidation electrocatalysts.
Collapse
Affiliation(s)
- Renjie Wei
- Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P. R. China
| | - Xiuming Bu
- Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P. R. China
| | - Wei Gao
- Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong
- Center for Applied Chemical Research, Frontier Institute of Science and Technology , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P. R. China
| | | | - Gennevieve Macam
- Department of Physics , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Zhi-Quan Huang
- Department of Physics , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Changyong Lan
- Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P. R. China
| | - Feng-Chuan Chuang
- Department of Physics , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Yongquan Qu
- Center for Applied Chemical Research, Frontier Institute of Science and Technology , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
| | - Johnny C Ho
- Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P. R. China
| |
Collapse
|
26
|
Meng Y, Lan C, Li F, Yip S, Wei R, Kang X, Bu X, Dong R, Zhang H, Ho JC. Direct Vapor-Liquid-Solid Synthesis of All-Inorganic Perovskite Nanowires for High-Performance Electronics and Optoelectronics. ACS Nano 2019; 13:6060-6070. [PMID: 31067402 DOI: 10.1021/acsnano.9b02379] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Controlled synthesis of lead halide perovskite (LHP) nanostructures not only benefits fundamental research but also offers promise for applications. Among many synthesis techniques, although catalytic vapor-liquid-solid (VLS) growth is recognized as an effective route to achieve high-quality nanostructures, until now, there is no detailed report on VLS grown LHP nanomaterials due to the emerging challenges in perovskite synthesis. Here, we develop a direct VLS growth for single-crystalline all-inorganic lead halide perovskite ( i.e., CsPbX3; X = Cl, Br, or I) nanowires (NWs). These NWs exhibit high-performance photodetection with the responsivity exceeding 4489 A/W and detectivity over 7.9 × 1012 Jones toward the visible light regime. Field-effect transistors (FET) based on individual CsPbX3 NWs are also fabricated, where they show the superior hole mobility of up to 3.05 cm2/(V s), higher than other all-inorganic LHP devices. This work provides important guidelines for the further improvement of these perovskite nanostructures for utilizations.
Collapse
Affiliation(s)
| | - Changyong Lan
- School of Optoelectronic Science and Engineering , University of Electronic Science and Technology of China , Chengdu 610054 , P. R. China
| | | | | | | | | | | | | | | | - Johnny C Ho
- Shenzhen Research Institute , City University of Hong Kong , Shenzhen 518057 , P. R. China
| |
Collapse
|
27
|
Liang X, Dong R, Li D, Bu X, Li F, Shu L, Wei R, Ho JC. Coupling of Nickel Boride and Ni(OH)2
Nanosheets with Hierarchical Interconnected Conductive Porous Structure Synergizes the Oxygen Evolution Reaction. ChemCatChem 2018. [DOI: 10.1002/cctc.201800993] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaoguang Liang
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Ruoting Dong
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Dapan Li
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Xiuming Bu
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Fangzhou Li
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Lei Shu
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Renjie Wei
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
| | - Johnny C. Ho
- Department of Materials Science and Engineering; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Shenzhen Research Institute; City University of Hong Kong; Shenzhen 518057 P.R. China
- State Key Laboratory of Millimeter Waves; City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
- Centre for Functional Photonics (CFP); City University of Hong Kong Kowloon Tong, Kowloon; Hong Kong
| |
Collapse
|
28
|
Wei R, Fang M, Dong G, Lan C, Shu L, Zhang H, Bu X, Ho JC. High-Index Faceted Porous Co 3O 4 Nanosheets with Oxygen Vacancies for Highly Efficient Water Oxidation. ACS Appl Mater Interfaces 2018; 10:7079-7086. [PMID: 29406690 DOI: 10.1021/acsami.7b18208] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Because of sluggish kinetics of the oxygen evolution reaction (OER), designing low-cost, highly active, and stable electrocatalysts for OER is important for the development of sustainable electrochemical water splitting. Here, {112} high-index facet exposed porous Co3O4 nanosheets with oxygen vacancies on the surface have been successfully synthesized via a simple hydrothermal method followed by NaBH4 reduction. As compared with the pristine and other faceted porous Co3O4 nanosheets (e.g., {110} and {111}), the as-prepared {112} faceted porous nanosheets exhibit a much lower overpotential of 318 mV at a current density of 10 mA cm-2. Importantly, these nanosheets also give excellent electrochemical stability, displaying an insignificant change in the required overpotential at a current density of 10 mA cm-2 even after a 14 h long-term chronoamperometric test. All these superior OER activity and stability could be attributed to their unique hierarchical structures assembled by ultrathin porous nanosheets, {112} high-index exposed facets with higher ratio of Co2+/Co3+ and oxygen vacancies on the surface, which can substantially enhance the charge transfer rate and increase the number of active sites. All these findings not only demonstrate the potency of our Co3O4 nanosheets for efficient water oxidation but also provide further insights into developing cost-effective and high-performance catalysts for electrochemical applications.
Collapse
Affiliation(s)
- Renjie Wei
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| | - Ming Fang
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| | | | - Changyong Lan
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| | - Lei Shu
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| | | | | | - Johnny C Ho
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| |
Collapse
|
29
|
Bu X, Yang S, Bu Y, He P, Yang Y, Wang G, Li H, Wang P, Wang X, Ding G, Yang J, Xie X. Highly Active Black TiO2
/N-doped Graphene Quantum Dots Nanocomposites For Sunlight Driven Photocatalytic Sewage Treatment. ChemistrySelect 2018. [DOI: 10.1002/slct.201702309] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiuming Bu
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093, P.R. China
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| | - Yu Bu
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093, P.R. China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| | - Yucheng Yang
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| | - Gang Wang
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| | - Huijun Li
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093, P.R. China
| | - Ping Wang
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093, P.R. China
| | - Xianying Wang
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093, P.R. China
| | - Guqiao Ding
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| | - Junhe Yang
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093, P.R. China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology; Chinese Academy of Science; Shanghai 200050, P.R. China
| |
Collapse
|
30
|
Zhao S, Song X, Bu X, Zhu C, Wang G, Liao F, Yang S, Wang M. Polydopamine dots as an ultrasensitive fluorescent probe switch for Cr(VI)in vitro. J Appl Polym Sci 2017. [DOI: 10.1002/app.44784] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shizhen Zhao
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
| | - Xun Song
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
| | - Xiuming Bu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Chong Zhu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Gang Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Fang Liao
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
| | - Siwei Yang
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Miao Wang
- School of Chemistry and Chemical Engineering; Nantong University; Nantong 226019 China
| |
Collapse
|
31
|
Bu X, Li J, Yang S, Sun J, Deng Y, Yang Y, Wang G, Peng Z, He P, Wang X, Ding G, Yang J, Xie X. Surface Modification of C 3N 4 through Oxygen-Plasma Treatment: A Simple Way toward Excellent Hydrophilicity. ACS Appl Mater Interfaces 2016; 8:31419-31425. [PMID: 27767306 DOI: 10.1021/acsami.6b10516] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We developed a universal method to prepare hydrophilic carbon nitrogen (C3N4) nanosheets. By treating C3N4 nanosheets with oxygen plasma, hydroxylamine groups (N-OH) with intense protonation could be introduced on the surface; moreover, the content of N-OH groups increased linearly with the oxygen-plasma treatment time. Thanks to the excellent hydrophilicity, uniformly dispersed C3N4 solution were prepared, which was further translated into C3N4 paper by simple vacuum filtration. Pure C3N4 paper with good stability, excellent hydrophilicity, and biocompatibility were proved to have excellent performance in tissue repair. Further research demonstrated that the oxygen-plasma treatment method can also introduce N-OH groups into other nitrogen-containing carbon materials (NCMs) such as N-doped graphene, N-doped carbon nanotube, and C2N, which offers a new perspective on the surface modification and functionalization of these carbon nanomaterials.
Collapse
Affiliation(s)
- Xiuming Bu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology , Shanghai 200093, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
| | - Jipeng Li
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine , Shanghai 20011, China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
| | - Jing Sun
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
| | - Yuan Deng
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine , Shanghai 20011, China
| | - Yucheng Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
- School of Physical Science and Technology, Shanghai Tech University , Shanghai 200031, China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Zheng Peng
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
| | - Xianying Wang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology , Shanghai 200093, China
| | - Guqiao Ding
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
| | - Junhe Yang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology , Shanghai 200093, China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200500, China
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050, China
- School of Physical Science and Technology, Shanghai Tech University , Shanghai 200031, China
| |
Collapse
|
32
|
Sun J, Deng Y, Li J, Wang G, He P, Tian S, Bu X, Di Z, Yang S, Ding G, Xie X. A New Graphene Derivative: Hydroxylated Graphene with Excellent Biocompatibility. ACS Appl Mater Interfaces 2016; 8:10226-10233. [PMID: 27052945 DOI: 10.1021/acsami.6b02032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graphene derivatives (such as graphene oxide and hydrogenated graphene) have been widely investigated because of their excellent properties. Here, we report large-scale (kilogram scale) synthesis of a new unique graphene derivative: hydroxylated graphene (G-OH). The exclusive existence form of oxygen-containing groups in G-OH is hydroxyl, which was verified by spectral characterization and quantitative halogenating reaction. It is very interesting that both the wettability and electrical conductivity show reversible change in halogenating and hydrolysis reaction cycles, which demonstrates the versatility of G-OH. Most importantly, the hydrophilicity and weak inductive nature of G-OH provides a well microenvironment for the cells adhesion and proliferation. On G-OH paper, rat adipose tissue-derived stromal cells exhibited a typical fibroblast-like shape with high rate of increase and survival after 3 day of incubation. This G-OH paper with good mechanical property is expected to be a new biomaterial for bone, vessel and skin regeneration.
Collapse
Affiliation(s)
- Jing Sun
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
| | - Yuan Deng
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine , Shanghai 20011, China
| | - Jipeng Li
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine , Shanghai 20011, China
| | - Gang Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
| | - Suyun Tian
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
- School of Physical Science and Technology, ShanghaiTech University , Shanghai 200031, China
| | - Xiuming Bu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
| | - Zengfeng Di
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
| | - Guqiao Ding
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
- Shanghai SIMBATT Energy Co. , Shanghai 201821, China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 20050, China
- School of Physical Science and Technology, ShanghaiTech University , Shanghai 200031, China
| |
Collapse
|
33
|
Adamson P, Ader C, Andrews M, Anfimov N, Anghel I, Arms K, Arrieta-Diaz E, Aurisano A, Ayres DS, Backhouse C, Baird M, Bambah BA, Bays K, Bernstein R, Betancourt M, Bhatnagar V, Bhuyan B, Bian J, Biery K, Blackburn T, Bocean V, Bogert D, Bolshakova A, Bowden M, Bower C, Broemmelsiek D, Bromberg C, Brunetti G, Bu X, Butkevich A, Capista D, Catano-Mur E, Chase TR, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cronin-Hennessy D, Cunningham A, Davies GS, Davies JP, Del Tutto M, Derwent PF, Deepthi KN, Demuth D, Desai S, Deuerling G, Devan A, Dey J, Dharmapalan R, Ding P, Dixon S, Djurcic Z, Dukes EC, Duyang H, Ehrlich R, Feldman GJ, Felt N, Fenyves EJ, Flumerfelt E, Foulkes S, Frank MJ, Freeman W, Gabrielyan M, Gallagher HR, Gebhard M, Ghosh T, Gilbert W, Giri A, Goadhouse S, Gomes RA, Goodenough L, Goodman MC, Grichine V, Grossman N, Group R, Grudzinski J, Guarino V, Guo B, Habig A, Handler T, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Howcroft C, Huang J, Huang X, Hylen J, Ishitsuka M, Jediny F, Jensen C, Jensen D, Johnson C, Jostlein H, Kafka GK, Kamyshkov Y, Kasahara SMS, Kasetti S, Kephart K, Koizumi G, Kotelnikov S, Kourbanis I, Krahn Z, Kravtsov V, Kreymer A, Kulenberg C, Kumar A, Kutnink T, Kwarciancy R, Kwong J, Lang K, Lee A, Lee WM, Lee K, Lein S, Liu J, Lokajicek M, Lozier J, Lu Q, Lucas P, Luchuk S, Lukens P, Lukhanin G, Magill S, Maan K, Mann WA, Marshak ML, Martens M, Martincik J, Mason P, Matera K, Mathis M, Matveev V, Mayer N, McCluskey E, Mehdiyev R, Merritt H, Messier MD, Meyer H, Miao T, Michael D, Mikheyev SP, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Musser J, Newman HB, Nelson JK, Niner E, Norman A, Nowak J, Oksuzian Y, Olshevskiy A, Oliver J, Olson T, Paley J, Pandey P, Para A, Patterson RB, Pawloski G, Pearson N, Perevalov D, Pershey D, Peterson E, Petti R, Phan-Budd S, Piccoli L, Pla-Dalmau A, Plunkett RK, Poling R, Potukuchi B, Psihas F, Pushka D, Qiu X, Raddatz N, Radovic A, Rameika RA, Ray R, Rebel B, Rechenmacher R, Reed B, Reilly R, Rocco D, Rodkin D, Ruddick K, Rusack R, Ryabov V, Sachdev K, Sahijpal S, Sahoo H, Samoylov O, Sanchez MC, Saoulidou N, Schlabach P, Schneps J, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sherwood B, Sheshukov A, Singh J, Singh V, Smith A, Smith D, Smolik J, Solomey N, Sotnikov A, Sousa A, Soustruznik K, Stenkin Y, Strait M, Suter L, Talaga RL, Tamsett MC, Tariq S, Tas P, Tesarek RJ, Thayyullathil RB, Thomsen K, Tian X, Tognini SC, Toner R, Trevor J, Tzanakos G, Urheim J, Vahle P, Valerio L, Vinton L, Vrba T, Waldron AV, Wang B, Wang Z, Weber A, Wehmann A, Whittington D, Wilcer N, Wildberger R, Wildman D, Williams K, Wojcicki SG, Wood K, Xiao M, Xin T, Yadav N, Yang S, Zadorozhnyy S, Zalesak J, Zamorano B, Zhao A, Zirnstein J, Zwaska R. First Measurement of Electron Neutrino Appearance in NOvA. Phys Rev Lett 2016; 116:151806. [PMID: 27127961 DOI: 10.1103/physrevlett.116.151806] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 06/05/2023]
Abstract
We report results from the first search for ν_{μ}→ν_{e} transitions by the NOvA experiment. In an exposure equivalent to 2.74×10^{20} protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of 1.07±0.14(syst). The 3.3σ excess of events observed in the primary analysis disfavors 0.1π<δ_{CP}<0.5π in the inverted mass hierarchy at the 90% C.L.
Collapse
Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C Ader
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Andrews
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - N Anfimov
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - I Anghel
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - K Arms
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - E Arrieta-Diaz
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - A Aurisano
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - D S Ayres
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C Backhouse
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Baird
- Indiana University, Bloomington, Indiana 47405, USA
| | - B A Bambah
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - K Bays
- California Institute of Technology, Pasadena, California 91125, USA
| | - R Bernstein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Betancourt
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - V Bhatnagar
- Department of Physics, Panjab University, Chandigarh 106 014, India
| | - B Bhuyan
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - J Bian
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - K Biery
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Blackburn
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - V Bocean
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Bogert
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Bolshakova
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - M Bowden
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C Bower
- Indiana University, Bloomington, Indiana 47405, USA
| | - D Broemmelsiek
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C Bromberg
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - G Brunetti
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - X Bu
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Butkevich
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - D Capista
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - E Catano-Mur
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - T R Chase
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S Childress
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B C Choudhary
- Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India
| | - B Chowdhury
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - T E Coan
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - J A B Coelho
- Department of Physics and Astonomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M Colo
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Cooper
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Corwin
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - D Cronin-Hennessy
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - A Cunningham
- Physics Department, University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75083-0688, USA
| | - G S Davies
- Indiana University, Bloomington, Indiana 47405, USA
| | - J P Davies
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - M Del Tutto
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P F Derwent
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K N Deepthi
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - D Demuth
- Math, Science and Technology Department, University of Minnesota-Crookston, Crookston, Minnesota 56716, USA
| | - S Desai
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - G Deuerling
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Devan
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Dey
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Dharmapalan
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Ding
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Dixon
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - E C Dukes
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Duyang
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Ehrlich
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - G J Feldman
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - N Felt
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - E J Fenyves
- Physics Department, University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75083-0688, USA
| | - E Flumerfelt
- Department of Physics and Astronomy, University of Tennessee, 1408 Circle Drive, Knoxville, Tennessee 37996, USA
| | - S Foulkes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M J Frank
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Freeman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Gabrielyan
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - H R Gallagher
- Department of Physics and Astonomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M Gebhard
- Indiana University, Bloomington, Indiana 47405, USA
| | - T Ghosh
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás 74690-900, Brazil
| | - W Gilbert
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - A Giri
- Department of Physics, IIT Hyderabad, Hyderabad 502 205, India
| | - S Goadhouse
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - R A Gomes
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás 74690-900, Brazil
| | - L Goodenough
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M C Goodman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Grichine
- Nuclear Physics Department, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - N Grossman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Group
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Grudzinski
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Guarino
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B Guo
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Habig
- Department of Physics and Astronomy, University of Minnesota-Duluth, Duluth, Minnesota 55812, USA
| | - T Handler
- Department of Physics and Astronomy, University of Tennessee, 1408 Circle Drive, Knoxville, Tennessee 37996, USA
| | - J Hartnell
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - R Hatcher
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Hatzikoutelis
- Department of Physics and Astronomy, University of Tennessee, 1408 Circle Drive, Knoxville, Tennessee 37996, USA
| | - K Heller
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - C Howcroft
- California Institute of Technology, Pasadena, California 91125, USA
| | - J Huang
- Department of Physics, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712, USA
| | - X Huang
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Hylen
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Ishitsuka
- Indiana University, Bloomington, Indiana 47405, USA
| | - F Jediny
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - C Jensen
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Jensen
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C Johnson
- Indiana University, Bloomington, Indiana 47405, USA
| | - H Jostlein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G K Kafka
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Y Kamyshkov
- Department of Physics and Astronomy, University of Tennessee, 1408 Circle Drive, Knoxville, Tennessee 37996, USA
| | - S M S Kasahara
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S Kasetti
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - K Kephart
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G Koizumi
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Kotelnikov
- Nuclear Physics Department, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - I Kourbanis
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Z Krahn
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - V Kravtsov
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - A Kreymer
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - Ch Kulenberg
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - A Kumar
- Department of Physics, Panjab University, Chandigarh 106 014, India
| | - T Kutnink
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - R Kwarciancy
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Kwong
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - K Lang
- Department of Physics, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712, USA
| | - A Lee
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W M Lee
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K Lee
- Physics and Astronomy Department, UCLA, Box 951547, Los Angeles, California 90095-1547, USA
| | - S Lein
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - J Liu
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - M Lokajicek
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
| | - J Lozier
- California Institute of Technology, Pasadena, California 91125, USA
| | - Q Lu
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Lucas
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Luchuk
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - P Lukens
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G Lukhanin
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Magill
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - K Maan
- Department of Physics, Panjab University, Chandigarh 106 014, India
| | - W A Mann
- Department of Physics and Astonomy, Tufts University, Medford, Massachusetts 02155, USA
| | - M L Marshak
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - M Martens
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Martincik
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - P Mason
- Department of Physics and Astronomy, University of Tennessee, 1408 Circle Drive, Knoxville, Tennessee 37996, USA
| | - K Matera
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Mathis
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - V Matveev
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - N Mayer
- Department of Physics and Astonomy, Tufts University, Medford, Massachusetts 02155, USA
| | - E McCluskey
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Mehdiyev
- Department of Physics, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712, USA
| | - H Merritt
- Indiana University, Bloomington, Indiana 47405, USA
| | - M D Messier
- Indiana University, Bloomington, Indiana 47405, USA
| | - H Meyer
- Physics Division, Wichita State University, 1845 Fairmout Street, Wichita, Kansas 67220, USA
| | - T Miao
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Michael
- California Institute of Technology, Pasadena, California 91125, USA
| | - S P Mikheyev
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - W H Miller
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S R Mishra
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Mohanta
- School of Physics, University of Hyderabad, Hyderabad 500 046, India
| | - A Moren
- Department of Physics and Astronomy, University of Minnesota-Duluth, Duluth, Minnesota 55812, USA
| | - L Mualem
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Muether
- Physics Division, Wichita State University, 1845 Fairmout Street, Wichita, Kansas 67220, USA
| | - S Mufson
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Musser
- Indiana University, Bloomington, Indiana 47405, USA
| | - H B Newman
- California Institute of Technology, Pasadena, California 91125, USA
| | - J K Nelson
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - E Niner
- Indiana University, Bloomington, Indiana 47405, USA
| | - A Norman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Nowak
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - Y Oksuzian
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Olshevskiy
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - J Oliver
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - T Olson
- Department of Physics and Astonomy, Tufts University, Medford, Massachusetts 02155, USA
| | - J Paley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Pandey
- Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India
| | - A Para
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R B Patterson
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Pawloski
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - N Pearson
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - D Perevalov
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Pershey
- California Institute of Technology, Pasadena, California 91125, USA
| | - E Peterson
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Petti
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Phan-Budd
- Department of Physics, Winona State University, P.O. Box 5838, Winona, Minnesota 55987, USA
| | - L Piccoli
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Pla-Dalmau
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R K Plunkett
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Poling
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - B Potukuchi
- Department of Physics and Electronics, University of Jammu, Jammu Tawi, 180 006 Jammu & Kashmir, India
| | - F Psihas
- Indiana University, Bloomington, Indiana 47405, USA
| | - D Pushka
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - X Qiu
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - N Raddatz
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - A Radovic
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - R A Rameika
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Ray
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Rebel
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Rechenmacher
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Reed
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - R Reilly
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Rocco
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - D Rodkin
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - K Ruddick
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Rusack
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - V Ryabov
- Nuclear Physics Department, Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia
| | - K Sachdev
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - S Sahijpal
- Department of Physics, Panjab University, Chandigarh 106 014, India
| | - H Sahoo
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - O Samoylov
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - M C Sanchez
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - N Saoulidou
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Schlabach
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Schneps
- Department of Physics and Astonomy, Tufts University, Medford, Massachusetts 02155, USA
| | - R Schroeter
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J Sepulveda-Quiroz
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - P Shanahan
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - B Sherwood
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - A Sheshukov
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - J Singh
- Department of Physics, Panjab University, Chandigarh 106 014, India
| | - V Singh
- Department of Physics, Banaras Hindu University, Varanasi 221 005, India
| | - A Smith
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - D Smith
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - J Smolik
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - N Solomey
- Physics Division, Wichita State University, 1845 Fairmout Street, Wichita, Kansas 67220, USA
| | - A Sotnikov
- Joint Institute for Nuclear Research Joliot-Curie, 6 Dubna, Moscow Region 141980, Russia
| | - A Sousa
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - K Soustruznik
- Charles University in Prague, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - Y Stenkin
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - M Strait
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - L Suter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - R L Talaga
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M C Tamsett
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - S Tariq
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - P Tas
- Charles University in Prague, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
| | - R J Tesarek
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R B Thayyullathil
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, India
| | - K Thomsen
- Department of Physics and Astronomy, University of Minnesota-Duluth, Duluth, Minnesota 55812, USA
| | - X Tian
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - S C Tognini
- Instituto de Física, Universidade Federal de Goiás, Goiánia, Goiás 74690-900, Brazil
| | - R Toner
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J Trevor
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Tzanakos
- Department of Physics, University of Athens, Athens 15771, Greece
| | - J Urheim
- Indiana University, Bloomington, Indiana 47405, USA
| | - P Vahle
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - L Valerio
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Vinton
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - T Vrba
- Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - A V Waldron
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - B Wang
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - Z Wang
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Weber
- Subdepartment of Particle Physics, University of Oxford, Oxford OX1 3RH, United Kingdom
- Rutherford Appleton Laboratory, Science and Technology Facilities Council, Didcot OX11 0QX, United Kingdom
| | - A Wehmann
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - N Wilcer
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Wildberger
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - D Wildman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K Williams
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S G Wojcicki
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K Wood
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Xiao
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Xin
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - N Yadav
- Department of Physics, IIT Guwahati, Guwahati 781 039, India
| | - S Yang
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - S Zadorozhnyy
- Institute for Nuclear Research of Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia
| | - J Zalesak
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
| | - B Zamorano
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
| | - A Zhao
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Zirnstein
- School of Physics and Astronomy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, USA
| | - R Zwaska
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| |
Collapse
|
34
|
Zhu Y, Bu X, Wang D, Wang P, Chen A, Li Q, Yang J, Wang X. Graphene nanodots decorated ultrathin P doped ZnO nanosheets as highly efficient photocatalysts. RSC Adv 2016. [DOI: 10.1039/c6ra11446f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
|
35
|
Bu X, Bu Y, Yang S, Sun F, Tian L, Peng Z, He P, Sun J, Huang T, Wang X, Ding G, Yang J, Xie X. Graphitic carbon nitride nanoribbon for enhanced visible-light photocatalytic H2 production. RSC Adv 2016. [DOI: 10.1039/c6ra23218c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chemical scissors provide a new vision to manufacture unique carbon nitride nanostructures with improved photocatalytic performance.
Collapse
|
36
|
Lin HY, Chin CY, Huang HL, Huang WY, Sie MJ, Huang LH, Lee YH, Lin CH, Lii KH, Bu X, Wang SL. Crystalline Inorganic Frameworks with 56-Ring, 64-Ring, and 72-Ring Channels. Science 2013; 339:811-3. [DOI: 10.1126/science.1232097] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
37
|
Wang W, Lin R, Zhang J, Mao Y, Bu X, Ji Q, Zhai X, Lin Q, Yang L, Zhang K. Involvement of fatty acid metabolism in the hepatotoxicity induced by divalproex sodium. Hum Exp Toxicol 2012; 31:1092-101. [DOI: 10.1177/0960327112444477] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Divalproex sodium is an antiepileptic drug. Hepatotoxicity is one of the most common side effects induced by divalproex sodium. Impaired fatty acid metabolism is considered to play an important role in the drug-induced hepatotoxicity. The sterol regulatory element-binding protein 1c (SREBP-1c) and peroxisome proliferator-activated receptor α (PPARα) are two key transcription factors involved, respectively, in fatty acid synthesis and degradation in liver. In the present study, we investigated the hepatotoxicity induced by divalproex sodium and its potential mechanism. The results indicated that divalproex sodium significantly decreased the cell viability and increased lactate dehydrogenase leakage in hepatocytes. The activities of alanine aminotransferase and aspartate transaminase were increased in hepatocytes treated with divalproex sodium. Furthermore, divalproex sodium activated SREBP-1c and increased the mRNA expressions of acetyl-CoA carboxylase 1, fatty acid synthase and stearoyl-CoA desaturase 1. Divalproex sodium also inhibited PPARα and decreased the messenger RNA expressions of 3-hydroxy-3-methylglutaryl-CoA synthase 2 and carnitine palmitoyltransferase 1A. These results suggest that the hepatotoxicity induced by divalproex sodium may be related with fatty acid synthesis and degradation mediated by SREBP-1c and PPARα in hepatocytes.
Collapse
Affiliation(s)
- W Wang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - R Lin
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - J Zhang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - Y Mao
- Shaanxi’s Tiansen Drug Research and Development Limited Company, Xi’an, Shaanxi, PR China
| | - X Bu
- Shaanxi’s Tiansen Drug Research and Development Limited Company, Xi’an, Shaanxi, PR China
| | - Q Ji
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - X Zhai
- Shaanxi’s Tiansen Drug Research and Development Limited Company, Xi’an, Shaanxi, PR China
| | - Q Lin
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - L Yang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - K Zhang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| |
Collapse
|
38
|
Abstract
20S-protopanaxadiol (aPPD) is a metabolite of ginseng saponins, which is reported to be pro-apoptotic in some cells but anti-apoptotic in neuronal cells by regulating Akt signaling. Owing to its cholesterol-like structure, we hypothesized that aPPD may regulate Akt signaling by interacting with lipid rafts. Here, we compared Akt signaling in glioblastoma U87MG and neuroblastoma Neuro-2a cells treated with aPPD. aPPD did not change Akt activity in the total plasma membranes of each cell type, but drastically altered the activity of raft-associated Akt. Strikingly, Akt activity was decreased in the rafts of U87MG cells but increased in N2a cells by aPPD through regulating raft-associated dephosphorylation. The bidirectional regulation of raft-associated Akt signaling by aPPD enhanced the chemotoxicity of Paclitaxel or Vinblastine in U87MG cells but attenuated the excitotoxicity of N-methyl--aspartate in N2a cells. Our results demonstrated that the activity of raft-associated but not total membrane Akt determines its cellular functions. Lipid rafts differ in different types of cells, which allows for the possibility of cell-type-specific targeting for which aPPD might prove to be a useful agent.
Collapse
Affiliation(s)
- Y Liu
- Department of Pathology, School of Preclinical Medicine, Beijing University of Chinese Medicine, Chaoyang District, China
| | | | | | | | | | | | | |
Collapse
|
39
|
Bu X, Skrdla P, Dormer P, Bereznitski Y. Separation of triphenyl atropisomers of a pharmaceutical compound on a novel mixed mode stationary phase: A case study involving dynamic chromatography, dynamic NMR and molecular modeling. J Chromatogr A 2010; 1217:7255-64. [DOI: 10.1016/j.chroma.2010.09.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 09/09/2010] [Accepted: 09/14/2010] [Indexed: 10/19/2022]
|
40
|
Bu X, Zheng Z, Yu Y, Zeng L, Jiang Y. Significance of C4d deposition in the diagnosis of rejection after liver transplantation. Transplant Proc 2006; 38:1418-21. [PMID: 16797320 DOI: 10.1016/j.transproceed.2006.03.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2005] [Indexed: 11/19/2022]
Abstract
C4d immunohistochemical staining of liver allograft biopsies was performed to assess its relationship to other pathological changes in the liver. C4d deposition was detected in 69.2% of liver graft biopsies from patients under going rejection, 33.3% of liver graft biopsies from patients with hepatitis B relapse after transplantation, and 28.6% of liver biopsies from patients with hepatitis B. When rejection occurred C4d deposition was located in the vascular walls of portal areas and hepatic sinusoidal walls. Examination of biopsies from patients with hepatitis B relapse after transplantation or hepatitis B infection showed C4d deposition only in the vascular walls of the portal area. C4d deposition in both vascular walls of portal area and hepatic sinusoidal walls was detected in only one of 12 ischemia-reperfusion damage cases. Repeated biopsy of the same patient 1 month later revealed acute cellular rejection. No C4d deposition was found in biopsies from a patient with bile duct occlusion after liver transplantation. C4d might serve as a sensitive marker for the diagnosis of liver rejection.
Collapse
Affiliation(s)
- X Bu
- Department of Pathology, Dongfang Hospitial, Fuzhou, Fujian, China
| | | | | | | | | |
Collapse
|
41
|
Olvera M, Wickramasinghe K, Brynes R, Bu X, Ma Y, Chandrasoma P. Ki67 expression in different epithelial types in columnar lined oesophagus indicates varying levels of expanded and aberrant proliferative patterns. Histopathology 2005; 47:132-40. [PMID: 16045773 DOI: 10.1111/j.1365-2559.2005.02200.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
AIMS To evaluate proliferative patterns in metaplastic columnar epithelia of the oesophagus, classified as oxynto-cardiac (n = 43), cardiac (n = 45) intestinal without dysplasia (n = 41), dysplastic intestinal epithelium (n = 25), and adenocarcinoma (n = 15) by Ki67 immunohistochemistry. METHODS AND RESULTS Abnormal patterns of Ki67 immunoreactivity were classified into (i) expanded proliferation, characterized by increased levels of Ki67 expression in the deep and mid third of the foveolar pit; and (ii) aberrant proliferation, characterized by positive staining in the surface epithelium and superficial third of the foveolar pit. A significant step-wise increase in the frequency of expanded proliferation was seen in oxynto-cardiac, cardiac, intestinal and dysplastic intestinal epithelium indicative of increasing levels of damage. Aberrant proliferation was absent in oxynto-cardiac mucosa, present at a low and similar level in cardiac, intestinal and low-grade dysplastic epithelia and at a significantly increased frequency in high-grade dysplasia. CONCLUSIONS These findings suggest that oxynto-cardiac mucosa occurs in a low damage environment and intestinal metaplasia in a high damage environment along the length of the columnar lined oesophageal segment. Aberrant proliferative patterns with Ki67 staining are not useful in differentiating reactive epithelia from low-grade dysplasia, but may prove useful in the diagnosis of high-grade dysplasia.
Collapse
Affiliation(s)
- M Olvera
- Department of Pathology, Los Angeles County/University of Southern California Medical Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | | | | | | | | | | |
Collapse
|
42
|
Yilmaz A, Tatar Yįldįrįm L, Bu X, Kizilyalli M, Stucky GD. New zeotype borophosphates with chiral tetrahedral topology: (H)0.5M1.25(H2O)1.5[BP2O8]·H2O (M = Co(II) and Mn(II)). Cryst Res Technol 2005. [DOI: 10.1002/crat.200410386] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
43
|
Jia W, Yan H, Bu X, Liu G, Zhao Y. Aglycone Protopanaxadiol, a ginseng saponin inhibits P-glycoprotein and sensitizes chemotherapy drugs on multidrug resistant cancer cells. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.9663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- W. Jia
- University of British Columbia, Vancouver, BC, Canada; PanaGin Pharmaceuticals, Vancouver, BC, Canada
| | - H. Yan
- University of British Columbia, Vancouver, BC, Canada; PanaGin Pharmaceuticals, Vancouver, BC, Canada
| | - X. Bu
- University of British Columbia, Vancouver, BC, Canada; PanaGin Pharmaceuticals, Vancouver, BC, Canada
| | - G. Liu
- University of British Columbia, Vancouver, BC, Canada; PanaGin Pharmaceuticals, Vancouver, BC, Canada
| | - Y. Zhao
- University of British Columbia, Vancouver, BC, Canada; PanaGin Pharmaceuticals, Vancouver, BC, Canada
| |
Collapse
|
44
|
Yang CT, Song J, Bu X, Cong YS, Bacchetti S, Rennie P, Jia WWG. Herpes simplex virus type-1 infection upregulates cellular promoters and telomerase activity in both tumor and nontumor human cells. Gene Ther 2003; 10:1494-502. [PMID: 12900765 DOI: 10.1038/sj.gt.3302005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Targeted gene expression through viral vectors has been a promising approach for gene therapy. However, the effects of viral gene products expressed from virus vectors on the expression of the host gene are not well known. In the present study, we examined the activities of cellular promoters, including the promoter for genes of human telomerase reverse transcriptase (hTERT), tyrosinase and probasin, in both tumor and normal cells after infection with herpes simplex virus type 1 (HSV-1) vectors. Our results showed that infection with replication-defective HSV-1 vectors significantly upregulated the activity of all three cellular promoters in a nonsequence specific fashion in all cell types tested. Furthermore, viral infection upregulated activities of the hTERT promoter and endogenous telomerase in nontumoral cells. Additional experiments suggested that the viral immediate-early gene product, infected cell protein 0, might be responsible for the deregulation of cellular promoter activity and activation of telomerase. Our study alerts to the potential risk of oncogenesis through deregulation of host gene expression, such as the telomerase by viral vectors in normal cells.
Collapse
Affiliation(s)
- C-T Yang
- Department of Internal Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | | | | | | | | | | | | |
Collapse
|
45
|
Bu X, Bernstein L, Brynes RK. Reduced risk of synovial sarcoma in females: X-chromosome inactivation? Br J Cancer 2002; 87:28-30. [PMID: 12085251 PMCID: PMC2364289 DOI: 10.1038/sj.bjc.6600362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2001] [Revised: 04/10/2002] [Accepted: 04/12/2002] [Indexed: 11/09/2022] Open
Abstract
Synovial sarcoma shows a characteristic t(X;18) translocation but not the expected female predominance in incidence. We speculate that, among females, one X-chromosome is inactivated and that only the translocation to an active X-chromosome leads to development of synovial sarcoma. Population-based cancer registry data from the SEER program support this hypothesis.
Collapse
Affiliation(s)
- X Bu
- Department of Pathology, University of Southern California, Keck School of Medicine, Los Angeles, California 90033, USA
| | | | | |
Collapse
|
46
|
Wang C, Li Y, Bu X, Zheng N, Zivkovic O, Yang CS, Feng P. Three-dimensional superlattices built from (M(4)In(16)S(33))(10-)(M = Mn, Co, Zn, Cd) supertetrahedral clusters. J Am Chem Soc 2001; 123:11506-7. [PMID: 11707140 DOI: 10.1021/ja011739r] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C Wang
- Department of Chemistry, University of California, Riverside, CA 92521, USA
| | | | | | | | | | | | | |
Collapse
|
47
|
Wong BS, Brown DR, Pan T, Whiteman M, Liu T, Bu X, Li R, Gambetti P, Olesik J, Rubenstein R, Sy MS. Oxidative impairment in scrapie-infected mice is associated with brain metals perturbations and altered antioxidant activities. J Neurochem 2001; 79:689-98. [PMID: 11701772 DOI: 10.1046/j.1471-4159.2001.00625.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Prion diseases are characterized by the conversion of the normal cellular prion protein (PrP(C)) into a pathogenic isoform (PrP(Sc)). PrP(C) binds copper, has superoxide dismutase (SOD)-like activity in vitro, and its expression aids in the cellular response to oxidative stress. However, the interplay between PrPs (PrP(C), PrP(Sc) and possibly other abnormal species), copper, anti-oxidation activity and pathogenesis of prion diseases remain unclear. In this study, we reported dramatic depression of SOD-like activity by the affinity-purified PrPs from scrapie-infected brains, and together with significant reduction of Cu/Zn-SOD activity, correlates with significant perturbations in the divalent metals contents. We also detected elevated levels of nitric oxide and superoxide in the infected brains, which could be escalating the oxidative modification of cellular proteins, reducing gluathione peroxidase activity and increasing the levels of lipid peroxidation markers. Taken together, our results suggest that brain metal imbalances, especially copper, in scrapie infection is likely to affect the anti-oxidation functions of PrP and SODs, which, together with other cellular dysfunctions, predispose the brains to oxidative impairment and eventual degeneration. To our knowledge, this is the first study documenting a physiological connection between brain metals imbalances, the anti-oxidation function of PrP, and aberrations in the cellular responses to oxidative stress, in scrapie infection.
Collapse
Affiliation(s)
- B S Wong
- Institute of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Affiliation(s)
- P Feng
- Chemistry Department, University of California, Riverside, 92521, USA
| | | | | |
Collapse
|
49
|
Liu Z, Bu X, Xing G, Lu L. [A preliminary study of a hearing screening model for newborn]. Zhonghua Er Bi Yan Hou Ke Za Zhi 2001; 36:292-4. [PMID: 12762000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVE To search for a hearing screening model for newborn and to investigate the prevalence of newborn hearing loss in our country. METHODS The distortion product otoacoustic emissions (DPOAE) was used to test the hearing in 2,998 of 3,075 newborns before discharge. Otoacoustic emissions (OAE) was again used for cases failed in the hospital screening 4 weeks later. Those cases failed in both screening steps were finally tested by auditory brainstem response (ABR). All infants failed in ABR test received diagnostic evaluation audiologically to identify the category and degree of hearing loss. The pass criterion of DPOAE was defined as signal-noise-ratio (SNR) exceeding 6 dB in 4 of 5 frequencies between 1.5-6 kHz. The pass criterion of ABR was the presence of wave V in response to 35 dB nHL click stimuli. RESULTS The OAE screening in the hospital showed that 2,710 (90.4%) newborns passed the first test. Two hundred and sixty three of 288 newborns passed the second OAE screening after one month. Six of 25 infants failed in ABR test were eventually identified to be hearing impaired. CONCLUSION Two-stages screening, combining OAE and ABR tests, may be an ideal model for newborn hearing screening. The prevalence of congenital hearing loss is similar to that reported in the literature.
Collapse
Affiliation(s)
- Z Liu
- Department of Otorhinolaryngology, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | | | | | | |
Collapse
|
50
|
Tang Y, Bu X, Yao Q, Xie Q, Qian M, Hu Y, Yu Y. [Audiological findings of the aging across the urban and rural of Suzhou]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2001; 15:315-7. [PMID: 12541792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To determine the epidemiological characteristics of old people's hearing. METHOD Questionnaires, physical examination, audiometry and bio-chemical tests were performed on the elders above 60 years old in part of the urban and rural area of Suzhou with random sample survey. RESULT A total of 1,040 individuals was investigated, among which 505 were from urban, and 535 were from rural. 33 of 505 senior citizen (6.53%) were nososacusis, 282 (55.84%) were presbycusis and 21 (4.16%) were noise-induced deafness; In the rural area, 35 of 535 (6.54%) were nososacusis, 232 (43.36%) were presbycusis, and 4 (0.75%) were noise deafness. There was significant difference of the incidence of presbycusis between urban and rural. The audiometric thresholds chart manifested that the threshold elevated with age increasing especially in high-frequency. CONCLUSION The etiology of hearing loss of elders was mainly due to presbycusis. The higher incidence of psychotic disorder in urban probably caused a correspondingly higher incidence of presbycusis. So the prevention and cure of some age-induced diseased (e.g. hypertension, arteriosclerosis and diabetes) may be helpful to release and improve presbycusis.
Collapse
Affiliation(s)
- Y Tang
- Department of Otolaryngology, First Affiliated Hospital of Suzhou University, Suzhou 215006
| | | | | | | | | | | | | |
Collapse
|