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He Y, Wang C, Wu Q, Zhang G. Magnetic targeting and pH-microwave dual responsive Janus mesoporous silica nanoparticles for drug encapsulation and delivery. Nanotechnology 2024; 35:315701. [PMID: 38657569 DOI: 10.1088/1361-6528/ad42a3] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
In this paper, a new Janus-structured nano drug delivery carrier Fe3O4@TiO2&mSiO2was designed and synthesized, which consisted of a spherical head and a closely connected rod. The head was a nanocomposite of core/shell structure with magnetic spinel ferric tetraoxide core and anatase titanium dioxide shell (Fe3O4@TiO2), and the rod was ordered mesoporous silica (mSiO2). The nanocarriers showed excellent magnetic targeting capability (saturation magnetization, 25.18 emu g-1). The core/shell heads endowed the carriers with fine microwave responsiveness. The pore volume of mesoporous nanocarriers was 0.101 cm3g-1, and the specific surface area was 489.0 m2g-1. Anticancer drug doxorubicin could be loaded in the mesoporous of the carriers to form Fe3O4@TiO2&mSiO2-DOX. The drug loading capacity was 10.4%. Fe3O4@TiO2&mSiO2-DOX exhibited acid-sensitive and microwave-sensitive release properties along with good bio-compatibility. Fe3O4@TiO2&mSiO2Janus nanoparticles are expected to be ideal drug carriers.
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Affiliation(s)
- Yuhai He
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China
- School of Basic Medicine, Jinzhou Medical University, Jinzhou 121001, People's Republic of China
| | - Chen Wang
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China
| | - Qiuhua Wu
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China
| | - Guolin Zhang
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China
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2
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Han B, Liu F, Hu S, Chen X, Lin C, Lee IS, Chen C. An antibacterial membrane based on Janus bacterial cellulose with nano-sized copper oxide through polydopamine conjugation for infectious wound healing. Carbohydr Polym 2024; 332:121923. [PMID: 38431418 DOI: 10.1016/j.carbpol.2024.121923] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 03/05/2024]
Abstract
Bacterial cellulose (BC) produced by Acetobacter xylinum has great advantages in wound dressing. However, the structural limitation under static culture, and lack of antibacterial properties restrict its application, especially for infectious wound healing. The present study reported an original wound dressing, which was composed of a Janus BC membrane with antibacterial nano-sized copper oxide (CuO) through polydopamine (PDA) conjugation to promote wound healing under infectious condition. The finished product (CuO/PDA/BC membrane) exhibited favorable air permeability, high hydrophilicity and good mechanical properties, as well as strong antibacterial effects by the sustained release of CuO and photothermal effect of CuO/PDA. Furthermore, CuO/PDA/BC membrane inhibited inflammatory response and promoted wound healing in an infectious wound model in vivo. These results suggested that our CuO/PDA/BC membrane had great potential as wound dressing for infectious wound healing.
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Affiliation(s)
- Bing Han
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Fan Liu
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang 110002, PR China
| | - Shuhang Hu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Xinyu Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Chenming Lin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - In-Seop Lee
- Institute of Human Materials, Suwon 16514, Republic of Korea
| | - Cen Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China; Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, Hangzhou 310018, PR China.
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3
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Zhu Z, Meng L, Gao Z, Liu R, Guo X, Wang H, Kong B. Development of chitosan/polycaprolactone-thymol Janus films with directional transport and antibacterial properties for meat preservation. Int J Biol Macromol 2024; 268:131669. [PMID: 38642683 DOI: 10.1016/j.ijbiomac.2024.131669] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 04/01/2024] [Accepted: 04/15/2024] [Indexed: 04/22/2024]
Abstract
Reducing contamination from percolate is critical to the preservation of foods with high water content, such as pork. This study aims to develop a novel active packaging material for meat preservation by precisely controlled dual-channel one-step electrospinning. Compared to traditional strategies of preparing Janus films, this method allows for greater flexibility and efficiency. The structure and properties of the Janus film are characterized by scanning electron microscopy (SEM), water contact angle (WCA), directional liquid transport investigation, Thymol release and permeation features, and biocompatibility evaluation. Moreover, the Janus film is applied to the packaging of pork with modified atmosphere packaging to demonstrate its practical application prospects in the food active packaging field. The results revealed that the two sides of the film showed completely different wettability, and the change rate of WCA increased with the increase of the scale of hydrophilic fibers. The permeation features of thymol loaded in the film was consistent with the results of antibacterial properties and biocompatibility assessment. Moreover, the Janus film can effectively prolong the shelf life, improve the quality and safety of the pork.
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Affiliation(s)
- Zhaozhang Zhu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Lingna Meng
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Zhennan Gao
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Rongxu Liu
- Heilongjiang Green Food Science & Research Institute, Harbin 150028, China
| | - Xiang Guo
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Hao Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Green Food Science & Research Institute, Harbin 150028, China.
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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Liu R, Zhao Z, Yang Q, Chen S, Yan Z, Li X, Liang L, Guo B, Wang B, Zhang H, Yao F, Li J. A Single-Component Janus Zwitterionic Hydrogel Patch with a Bionic Microstructure for Postoperative Adhesion Prevention. ACS Appl Mater Interfaces 2024. [PMID: 38669466 DOI: 10.1021/acsami.4c01845] [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: 04/28/2024]
Abstract
The development of anti-adhesion hydrogels for preventing postoperative adhesions is an ongoing challenge, particularly in achieving a balance between exceptional antifouling properties and effective in situ tissue retention. In this study, we propose a unique approach with the design of a single-component Janus zwitterionic hydrogel patch featuring a bionic microstructure. The Janus patches were prepared through free radical polymerization of sulfobetaine methacrylate with N, N'-methylenebis(2-propenamide) as the cross-linker. The incorporation of hexagonal facets separated by interconnecting grooves on one side imparts durable and reliable in situ retention capabilities to the Janus hydrogel patch when it is applied to traumatized tissues. The opposing flat surface exhibits outstanding resistance to bacteria, proteins, and cell adhesion, due to the superhydrophilicity and excellent antifouling characteristics of zwitterionic polymers. This dual functionality empowers the Janus hydrogel patch to mitigate adhesions between traumatized and surrounding tissues. The hexagonal and groove bionic microstructures facilitate rapid drainage, promoting swift contact with the tissue for increased adhesion strength, while independent hexagonal microfacets enhance the peeling energy. In an in vivo setting, Janus zwitterionic hydrogel patches with surface microstructures form mutually embedded structures with the cecum surface, minimizing the likelihood of slippage and detachment. Remarkably, in vivo experiments involving abdominal wall cecum injuries illustrate the Janus zwitterionic hydrogel patch's superior anti-adhesion effectiveness compared to commercial controls. Thus, the Janus hydrogel patch, distinguished by its bionic microstructure surface, presents substantial potential in the biomedical field for averting postoperative adhesions.
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Affiliation(s)
- Rui Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Zhongming Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Qi Yang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Shuang Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Zhuojun Yan
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Xiuqiang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Lei Liang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Bingyan Guo
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Baoqun Wang
- Qingdao Chenland Marine Biological Engineering Company, Ltd., Qingdao 266100, China
| | - Hong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300350, China
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300350, China
| | - Junjie Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300350, China
- School of Chemistry and Chemical Engineering, Qinghai Minzu University, Xining 810007, Qinghai, China
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Yang X, Wang F, Gao Y, Zhang H, Liu Z, Feng J. Compatibilization of Immiscible Polypropylene/Poly(methyl methacrylate) Blends by Silica Particles with Janus and Random Component-Selective Grafts. ACS Appl Mater Interfaces 2024; 16:19615-19624. [PMID: 38587106 DOI: 10.1021/acsami.4c01934] [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: 04/09/2024]
Abstract
Introducing component-selective polymer chains onto the surface of a particle is an effective approach to improve the compatibilization efficiency of a particle-based compatibilizer. In this study, two particles with different kinds of component-selective polymer chains that have the same length and similar density but different graft locations were synthesized and their compatibilization effects were comparatively investigated. It was found that compared with the particle with homogeneous PMMA and PP grafts (R-P), the particle with a hemisphere of poly(methyl methacrylate) (PMMA) grafts and other hemisphere of polypropylene (PP) chains (J-P) showed a better compatibilization effect under equal loadings, although both particles exhibited high efficiency. The better compatibilization effect of particles with Janus grafts may be attributed to the stronger entanglements between grafted polymer chains and selective individual components. This work suggests that optimizing the graft location of a particle is an effective strategy for improving its compatibilization efficiency and helpful for the design of advanced particle compatibilizers.
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Affiliation(s)
- Xin Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Fushan Wang
- Lanzhou Petrochemical Corporation of PetroChina, Lanzhou 730060, P. R. China
| | - Yan Gao
- Lanzhou Petrochemical Corporation of PetroChina, Lanzhou 730060, P. R. China
| | - Hongxing Zhang
- Lanzhou Petrochemical Corporation of PetroChina, Lanzhou 730060, P. R. China
| | - Zhiqin Liu
- Lanzhou Petrochemical Corporation of PetroChina, Lanzhou 730060, P. R. China
| | - Jiachun Feng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
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Long Y, Wu Q, Jiang C, Zhang G, Liang F. Anisotropic Multitentacle Janus Particles Synthesized by Selective Asymmetric Growth. Small 2024; 20:e2307203. [PMID: 37939294 DOI: 10.1002/smll.202307203] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/22/2023] [Indexed: 11/10/2023]
Abstract
Anisotropic colloidal particles with asymmetric morphology possess functionally rich heterogeneous structures, thus offering potential for intricate superstructures or nanodevices. However, it is a challenge to achieve controlled asymmetric surface partitioned growth. In this work, an innovative strategy is developed based on the selective adsorption and growth of emulsion droplets onto different regions of object which is controlled by wettability. It is found that the emulsion droplets can selectively adsorb on the hydrophilic surface but not the hydrophobic one, and further form asymmetric tentacle by the interfacial sol-gel process along its trajectory. Janus particles with an anisotropic shape and multitentacle structure are achieved via integration of emulsion droplet (soft) and seed (hard) templates. The size and number of tentacles exhibit tunability mediated by soft and hard templates, respectively. This general strategy can be expanded to a variety of planar substrates or curved particles, further confirming the correlation between tentacle growth and Brownian motion. Most interestingly, it can be employed to selectively modify one region of surface partitioned particles to achieve an ABC three-component Janus structure.
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Affiliation(s)
- Yingchun Long
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Qiuhua Wu
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Chao Jiang
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Guolin Zhang
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Fuxin Liang
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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Bhat IM, Lone S. Hydrothermal and Laser-Guided Janus Membrane with Dual Wettability for Unidirectional Oil/Water Separation. ACS Appl Mater Interfaces 2024. [PMID: 38407994 DOI: 10.1021/acsami.3c18059] [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: 02/28/2024]
Abstract
The development of a Janus membrane with contrasting chemical functionality/or wettability on opposite faces has shown great promise as a passive and energy-efficient oil/water separation technology. Notably, one side of the membrane is designed hydrophilic (i.e., water-attracting in air and underwater oleophobic) and the other hydrophobic (i.e., water-repelling in air and underwater oleophilic). The distinctive surface wettability features of the membrane allow it to repel water and attract oil without consuming energy, thus making it an attractive technology for passively separating oil/water mixtures. The hydrophobic face of the membrane captures oil droplets while allowing water to pass through, and the hydrophilic side attracts water droplets and allows oil to pass. Nonetheless, crafting a Janus membrane is complex, tedious, and expensive. To overcome these limitations, an easy and inexpensive two-step fabrication process for the Janus membrane is proposed in this work. The first step involves creating a superhydrophilic face by the hydrothermally guided deposition of nanoneedles on either side of a commercially available hydrophobic carbon sheet. In the second step, the double-faced surface is subjected to a pulsed laser to create conical micropores studied for oil/water separation. The fabricated membrane is economically affordable and environment friendly. Besides being energy-efficient (as the separation process works passively), the membrane demonstrates an efficient oil/water separating performance. The potential application of this work is diverse and impactful, encompassing wastewater treatment, oil spill cleanup, and various industrial separation processes.
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Affiliation(s)
- Irfan Majeed Bhat
- Department of Chemistry, National Institute of Technology (NIT), Jammu and Kashmir, Srinagar 190006, India
- iDREAM (Interdisciplinary Division for Renewable Energy & Advanced Materials), Laboratory for Bioinspired Research on Advanced Interface and Nanomaterials (BRAINS), NIT, Jammu and Kashmir, Srinagar 190006, India
| | - Saifullah Lone
- Department of Chemistry, National Institute of Technology (NIT), Jammu and Kashmir, Srinagar 190006, India
- iDREAM (Interdisciplinary Division for Renewable Energy & Advanced Materials), Laboratory for Bioinspired Research on Advanced Interface and Nanomaterials (BRAINS), NIT, Jammu and Kashmir, Srinagar 190006, India
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Hao HL, Zhu J, Weng GJ, Li JJ, Guo YB, Zhao JW. Exclusive Core- Janus Satellite Assembly Based on Au-Ag Janus Self-Aligned Distributions with Abundant Hotspots for Ultrasensitive Detection of CA19-9. ACS Sens 2024; 9:942-954. [PMID: 38295764 DOI: 10.1021/acssensors.3c02416] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
The development of surface-enhanced Raman scattering (SERS) probes with high sensitivity and stability is imminent to improve the accuracy of cancer diagnosis. Here, an exclusive core-Janus satellite (CJS) assembly was constructed by a hierarchical assembly strategy in which the Au-Ag Janus satellite is vertically self-aligned on the core surface. In the process, a silica shell template was ingeniously employed to asymmetrically mask the presatellites for the in situ formation of the Janus structure, and a series of Janus satellites with different morphologies were developed by regulating the encapsulated area of the presatellites. The ordered-oriented arrangement of Au-Ag Janus and unique heterojunction morphology permit CJS assemblies, featuring two types of plasmonic nanogaps, including intrananocrevices for individual Janus and internanogaps between neighboring Janus, thereby multiplying the "hotspots" compared to conventional core-monotonous satellites, which contributes to superior SERS activity. As anticipated, the enhancement factor of CJS assemblies was as high as 3.8 × 108. Moreover, it is intriguing that the directional distribution and head physically immobilized by Janus provided uniform and stable SERS signals. The SERS probe based on the CJS assembly for the detection of carbohydrate antigen 19-9 resulted in an ultrahigh sensitivity with a limit of detection of 3.7 × 10-5 IU·mL-1, which is nearly 10 times lower than other SERS probes, and a wide detection range of 3 × 10-5 to 1 × 104 IU·mL-1. The CJS assembly with excellent SERS performance is promising to advance further development of the early diagnosis of pancreatic cancer.
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Affiliation(s)
- Hui-Li Hao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yu-Bo Guo
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
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Zhao Z, Gao W, Chang Y, Yang Y, Shen H, Li T, Zhao S. Asymmetric Triple-Functional Janus Membrane for Blood Oxygenation. Adv Healthc Mater 2024; 13:e2302708. [PMID: 38010837 DOI: 10.1002/adhm.202302708] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/18/2023] [Indexed: 11/29/2023]
Abstract
The oxygenation membrane, a core material of extracorporeal membrane oxygenation (ECMO), is facing challenges in balancing anti-plasma leakage, gas exchange efficiency, and hemocompatibility. Here, inspired by the asymmetric structural features of alveolus pulmonalis, a novel triple-functional membrane for blood oxygenation with a Janus architecture is proposed, which is composed of a hydrophobic polydimethylsiloxane (PDMS) layer to prevent plasma leakage, an ultrathin polyamide layer to enhance gas exchange efficiency with a CO2 :O2 permeance ratio of ≈10.7, and a hydrophilic polyzwitterionic layer to improve the hemocompatibility. During the simulated ECMO process, the Janus oxygenation membrane exhibits excellent performance in terms of thrombus formation and plasma leakage prevention, as well as adequate O2 transfer rate (17.8 mL min-1 m-2 ) and CO2 transfer rate (70.1 mL min-1 m-2 ), in comparison to the reported oxygenation membranes. This work presents novel concepts for the advancement of oxygenation membranes and demonstrates the application potential of the asymmetric triple-functional Janus oxygenation membrane in ECMO.
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Affiliation(s)
- Zhenyi Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin, 300072, P. R. China
| | - Wenqing Gao
- Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, 300170, P. R. China
| | - Yun Chang
- Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, 300170, P. R. China
| | - Yue Yang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin, 300072, P. R. China
| | - Hechen Shen
- Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, 300170, P. R. China
| | - Tong Li
- Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, 300170, P. R. China
| | - Song Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin, 300072, P. R. China
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Hou M, Liu M, Yu H, Kou Y, Jia J, Zhou Q, Zhang F, Zhao D, Zhao T, Li X. Spatially Asymmetric Nanoparticles for Boosting Ferroptosis in Tumor Therapy. Nano Lett 2024; 24:1284-1293. [PMID: 38230643 DOI: 10.1021/acs.nanolett.3c04293] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Despite its effectiveness in eliminating cancer cells, ferroptosis is hindered by the high natural antioxidant glutathione (GSH) levels in the tumor microenvironment. Herein, we developed a spatially asymmetric nanoparticle, Fe3O4@DMS&PDA@MnO2-SRF, for enhanced ferroptosis. It consists of two subunits: Fe3O4 nanoparticles coated with dendritic mesoporous silica (DMS) and PDA@MnO2 (PDA: polydopamine) loaded with sorafenib (SRF). The spatial isolation of the Fe3O4@DMS and PDA@MnO2-SRF subunits enhances the synergistic effect between the GSH-scavengers and ferroptosis-related components. First, the increased exposure of the Fe3O4 subunit enhances the Fenton reaction, leading to increased production of reactive oxygen species. Furthermore, the PDA@MnO2-SRF subunit effectively depletes GSH, thereby inducing ferroptosis by the inactivation of glutathione-dependent peroxidases 4. Moreover, the SRF blocks Xc- transport in tumor cells, augmenting GSH depletion capabilities. The dual GSH depletion of the Fe3O4@DMS&PDA@MnO2-SRF significantly weakens the antioxidative system, boosting the chemodynamic performance and leading to increased ferroptosis of tumor cells.
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Affiliation(s)
- Mengmeng Hou
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Minchao Liu
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Hongyue Yu
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Yufang Kou
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Jia Jia
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Qiaoyu Zhou
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Fan Zhang
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Dongyuan Zhao
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Tiancong Zhao
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Xiaomin Li
- Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
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11
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Glahn-Martínez B, Jurado-Sánchez B, Benito-Peña E, Escarpa A, Moreno-Bondi MC. Magnetic Janus micromotors for fluorescence biosensing of tacrolimus in oral fluids. Biosens Bioelectron 2024; 244:115796. [PMID: 37922810 DOI: 10.1016/j.bios.2023.115796] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/03/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Tacrolimus (FK506) is a macrolide lactone immunosuppressive drug that is commonly used in transplanted patients to avoid organ rejection. FK506 exhibits high inter- and intra-patient pharmacokinetic variability, making monitoring necessary for organ graft survival. This work describes the development of a novel bioassay for monitoring FK506. The bioassay is based on using polycaprolactone-based (PCL) magnetic Janus micromotors and a recombinant chimera receptor that incorporates the immunophilin tacrolimus binding protein 1A (FKBP1A) tagged with Emerald Green Fluorescent Protein (EmGFP). The approach relies on a fluorescence competitive bioassay between the drug and the micromotors decorated with a carboxylated FK506 toward the specific site of the fluorescent immunophilin. The proposed homogeneous assay could be performed in a single step without washing steps to separate the unbound receptor. The proposed approach fits the therapeutic requirements, showing a limit of detection of 0.8 ng/mL and a wide dynamic range of up to 90 ng/mL. Assay selectivity was evaluated by measuring the competitive inhibition curves with other immunosuppressive drugs usually co-administered with FK506. The magnetic propulsion mechanism allows for efficient operation in raw samples without damaging the biological binding receptor (FKBP1A-EmGFP). The enhanced target recognition and micromixing strategies hold considerable potential for FK506 monitoring in practical clinical use.
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Affiliation(s)
- Bettina Glahn-Martínez
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, Alcala de Henares, 28805, Madrid, Spain; Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, 28040, Madrid, Spain
| | - Beatriz Jurado-Sánchez
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, Alcala de Henares, 28805, Madrid, Spain; Chemical Research Institute "Andres M. del Rio", University of Alcala, Alcala de Henares, Madrid, E28805, Spain.
| | - Elena Benito-Peña
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, 28040, Madrid, Spain.
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, Alcala de Henares, 28805, Madrid, Spain; Chemical Research Institute "Andres M. del Rio", University of Alcala, Alcala de Henares, Madrid, E28805, Spain.
| | - María C Moreno-Bondi
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, 28040, Madrid, Spain
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12
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Sardari N, Abdollahi A, Farokhi Yaychi M. Chameleon-like Photoluminescent Janus Nanoparticles as Full-Color Multicomponent Organic Nanoinks: Combination of Förster Resonance Energy Transfer and Photochromism for Encryption and Anticounterfeiting with Multilevel Authentication. ACS Appl Mater Interfaces 2023. [PMID: 38035478 DOI: 10.1021/acsami.3c14144] [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: 12/02/2023]
Abstract
Increasing the security by the multilevel authentication mechanism was the most significant challenge in recent years for the development of anticounterfeiting inks based on photoluminescent nanomaterials. For this purpose, the greatest strategy is the use of multicomponent organic materials and a combination of Förster resonance energy transfer (FRET) with the intelligent behavior of photochromic compounds like spiropyran. Here, the hydroxyl-functionalized polymer nanoparticles were synthesized by emulsion copolymerization of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA) in different compositions (0-30 wt % of HEMA). Results illustrated that the size of the nanoparticles changed from 64 to 204 nm, and a morphology evolution from spherical to Janus shape was observed by increasing the concentration of HEMA. Photoluminescent inks with red, green, and blue (RGB) fluorescence emissions were prepared by modification of nanoparticles containing 15 wt % of HEMA with spiropyran, fluorescein, and coumarin, respectively. To develop dual-color and multicolor photoluminescent inks that display static and dynamic emission, RGB latex samples were mixed together in different ratios and printed on cellulosic paper. Results display that the fluorescence emission of developed inks can be photoswitched between different statuses, including white to blue, green to blue, green to red/orange, purple to pink, and white to pink, utilizing the FRET phenomenon, photochromism, and a combination of both phenomena. Samples containing spiropyran displayed dynamic color changes in the emission to red, orange, and pink depending on the composition. Hence, developed dual-color and multicolor photoluminescent inks were used for printing of security tags and also painting of some hand-drawn artworks, which obtained results indicating high printability, maximum fluorescence intensity, high resolution, and fast responsivity upon UV-light irradiations of 254 nm (for static mode) and 365 nm (for dynamic mode). In addition, the multilevel authentication mechanism by a static emission under UV-light irradiation of 254 nm, a dynamic emission under UV-light irradiation of 365 nm, and photochromic color change was observed, resulting in increasing the security of developed inks. Actually, developed multicolor photoluminescent inks are the most efficient candidates for developing a new category of chameleon-like high-security anticounterfeiting inks that have tunable optical properties and complex multilevel authentication mechanisms.
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Affiliation(s)
- Negar Sardari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Amin Abdollahi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Mojtaba Farokhi Yaychi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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13
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Fang X, Ye H, Shi K, Wang K, Huang Y, Zhang X, Pan J. GOx-Powered Janus Platelet Nanomotors for Targeted Delivery of Thrombolytic Drugs in Treating Thrombotic Diseases. ACS Biomater Sci Eng 2023. [PMID: 37307138 DOI: 10.1021/acsbiomaterials.3c00387] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Low efficiency of targeting and delivery toward the thrombus site poses challenges to using thrombolytic drugs. Inspired by the biomimetic system of platelet membranes (PMs) and glucose oxidase (GOx) modification technologies, we develop a novel GOx-powered Janus nanomotor by asymmetrically attaching the GOx to polymeric nanomotors coated with the PMs. Then the PM-coated nanomotors were conjugated with urokinase plasminogen activators (uPAs) on their surfaces. The PM-camouflaged design conferred excellent biocompatibility to the nanomotors and improved their targeting ability to thrombus. The Janus distribution of GOx also allows the uneven decomposition of glucose in biofluids to produce a chemophoretic motion, increasing the drug delivery efficiency of nanomotors. In addition, these nanomotors are located at the lesion site due to the mutual adhesion and aggregation of platelet membranes. Furthermore, thrombolysis effects of nanomotors are enhanced in static and dynamic thrombus as well as in mouse models. It is believed that the novel PM-coated enzyme-powered nanomotors represent a great value for thrombolysis treatment.
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Affiliation(s)
- Xiaojuan Fang
- Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
| | - Huihui Ye
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
| | - Keqing Shi
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
| | - Kaicheng Wang
- Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
| | - Yueyue Huang
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Critical Care and Artificial Intelligence of Wenzhou, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
| | - Xianwei Zhang
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Critical Care and Artificial Intelligence of Wenzhou, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
| | - Jingye Pan
- Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Critical Care and Artificial Intelligence of Wenzhou, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, People's Republic of China
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14
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Kolivand N, Haghighat-Shishavan S, Nazarian-Samani M, Kheradmandfard M, Nazarian-Samani M, Kashani-Bozorg SF, Lee W. Firmly interlocked Janus-type metallic Ni 3Sn 2S 2-carbon nanotube heterostructure suppresses polysulfide dissolution and Sn aggregation. J Colloid Interface Sci 2023; 648:406-417. [PMID: 37302224 DOI: 10.1016/j.jcis.2023.05.176] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/19/2023] [Accepted: 05/28/2023] [Indexed: 06/13/2023]
Abstract
Ternary transition-metal tin chalcogenides, with their diverse compositions, abundant constituents, high theoretical capacities, acceptable working potentials, excellent conductivities, and synergistic active/inactive multi-components, hold promise as anode materials for metal-ion batteries. However, abnormal aggregation of Sn nanocrystals and the shuttling of intermediate polysulfides during electrochemical tests detrimentally affect the reversibility of redox reactions and lead to rapid capacity fading within a limited number of cycles. In this study, we present the development of a robust Janus-type metallic Ni3Sn2S2-carbon nanotube (NSSC) heterostructured anode for Li-ion batteries (LIBs). The synergistic effects of Ni3Sn2S2 nanoparticles and a carbon network successfully generate abundant heterointerfaces with steady chemical bridges, thereby enhancing ion and electron transport, preventing the aggregation of Ni and Sn nanoparticles, mitigating the oxidation and shuttling of polysulfides, facilitating the reforming of Ni3Sn2S2 nanocrystals during delithiation, creating a uniform solid-electrolyte interphase (SEI) layer, protecting the mechanical integrity of electrode materials, and ultimately enabling highly reversible lithium storage. Consequently, the NSSC hybrid exhibits an excellent initial Coulombic efficiency (ICE > 83 %) and superb cyclic performance (1218 mAh/g after 500 cycles at 0.2 A/g and 752 mAh/g after 1050 cycles at 1 A/g). This research provides practical solutions for the intrinsic challenges associated with multi-component alloying and conversion-type electrode materials in next-generation metal-ion batteries.
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Affiliation(s)
- Niloofar Kolivand
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran 11155-4563, Iran
| | - Safa Haghighat-Shishavan
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Mahboobeh Nazarian-Samani
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Mehdi Kheradmandfard
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran 11155-4563, Iran
| | - Masoud Nazarian-Samani
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Seyed Farshid Kashani-Bozorg
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran 11155-4563, Iran.
| | - Wooyoung Lee
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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15
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Zong W, Gao H, Ouyang Y, Chu K, Guo H, Zhang L, Zhang W, Chen R, Dai Y, Guo F, Zhu J, Zhang Z, Ye C, Miao YE, Hofkens J, Lai F, Liu T. Bio-Inspired Aerobic-Hydrophobic Janus Interface on Partially Carbonized Iron Heterostructure Promotes Bifunctional Nitrogen Fixation. Angew Chem Int Ed Engl 2023:e202218122. [PMID: 37081751 DOI: 10.1002/anie.202218122] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 04/22/2023]
Abstract
Overwhelming competition from hydrogen/oxygen evolution reactions and low solubility of N2 in aqueous systems drain on selectivity and activity on nitrogen fixation reaction. Herein, we design an aerobic-hydrophobic Janus structure by introducing fluorinated modification on porous carbon nanofibers embedded with partially carbonized iron heterojunctions (Fe3C/Fe@PCNF-F). The simulations prove that the Janus structure can keep the internal Fe3C/Fe@PCNF-F away from water infiltration and endow a N2 molecule-concentrating effect, suppressing the competing reactions and overcoming the mass-transfer limitations to build a robust "quasi-solid-gas" state micro-domain around the catalyst surface. In this proof-of-concept system, the Fe3C/Fe@PCNF-F exhibits excellent electrocatalytic performance for nitrogen fixation (NH3 yield rate up to 29.2 μg h-1 mg-1cat. and Faraday efficiency (FE) up to 27.8% in NRR; NO3- yield rate up to 15.7 μg h-1 mg-1cat. and FE up to 3.4 % in NOR).
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Affiliation(s)
- Wei Zong
- Jiangnan University, School of Chemical and Material Engineering, CHINA
| | - Haiqi Gao
- Nanjing University of Posts and Telecommunications, Institute of Advanced Materials, CHINA
| | - Yue Ouyang
- Donghua University, College of Materials Science and Engineering, CHINA
| | - Kaibin Chu
- Jiangnan University, School of Chemical and Material Engineering, CHINA
| | - Hele Guo
- KU Leuven University: Katholieke Universiteit Leuven, Department of Chemistry, BELGIUM
| | - Leiqian Zhang
- Jiangnan University, School of Chemical and Material Engineering, CHINA
| | - Wei Zhang
- University College London, Department of Chemistry, UNITED KINGDOM
| | - Ruwei Chen
- University College London, Department of Chemistry, UNITED KINGDOM
| | - Yuhang Dai
- University College London, Department of Chemistry, UNITED KINGDOM
| | - Fei Guo
- University College London, Department of Chemistry, UNITED KINGDOM
| | - Jiexin Zhu
- University College London, Department of Chemistry, UNITED KINGDOM
| | - Zhenfang Zhang
- University College London, Department of Chemistry, UNITED KINGDOM
| | - Chumei Ye
- University of Cambridge, Department of Materials Science and Metallurgy, UNITED KINGDOM
| | - Yue-E Miao
- Donghua University, College of Materials Science and Engineering, CHINA
| | - Johan Hofkens
- KU Leuven: Katholieke Universiteit Leuven, Department of Chemistry, BELGIUM
| | - Feili Lai
- KU Leuven: Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, Leuven, BELGIUM
| | - Tianxi Liu
- Jiangnan University, School of Chemical and Material Engineering, CHINA
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16
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Zhang N, Zhang J, Yang X, Zhou C, Zhu X, Liu B, Chen Y, Lin S, Wang Z. Janus Membrane with Hydrogel-like Coating for Robust Fouling and Wetting Resistance in Membrane Distillation. ACS Appl Mater Interfaces 2023; 15:19504-19513. [PMID: 37022125 DOI: 10.1021/acsami.3c02781] [Citation(s) in RCA: 2] [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: 06/19/2023]
Abstract
Membrane distillation (MD) is a promising technique for water reclamation from hypersaline wastewater. However, fouling and wetting of the hydrophobic membranes are two prominent challenges for the widespread application of MD. Herein, we developed an antiwetting and antifouling Janus membrane comprising a hydrogel-like polyvinyl alcohol/tannic acid (PVA/TA) top layer and a hydrophobic polytetrafluoroethylene (PTFE) membrane substrate via a facile and benign strategy combining mussel-amine co-deposition with the shrinkage-rehydration process. Interestingly, the vapor flux of the Janus membrane was not compromised, though a microscale PVA/TA layer was introduced, possibly due to the high water uptake and reduced water evaporation enthalpy of the hydrogel-like structure. Moreover, the PVA/TA-PTFE Janus membrane sustained stable MD performance while treating a challenging saline feed containing surfactants and mineral oils. The robust wetting resistance arises from the synergistic effects of the elevated liquid entry pressure (1.01 ± 0.02 MPa) of the membrane and the retardation of surfactant transport to the substrate PTFE layer. Meanwhile, the hydrogel-like PVA/TA layer hinders oil fouling due to its strongly hydrated state. Furthermore, the PVA/TA-PTFE membrane exhibited improved performance in purifying shale gas wastewater and landfill leachate. This study provides new insights into the facile design and fabrication of promising MD membranes for hypersaline wastewater treatment.
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Affiliation(s)
- Na Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Jiaojiao Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Xin Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Changxu Zhou
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Xiaohui Zhu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Baicang Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu, Sichuan 610207, P. R. China
| | - Yue Chen
- State Key Lab of Fluorinated Functional Membrane Materials, Shandong Dongyue Polymer Material Co., Ltd., Zibo 256401, P. R. China
| | - Shihong Lin
- Department of Civil and Environmental Engineering and Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
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17
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Huang W, Wu X, Zhao Y, Liu Y, Zhang B, Qiao M, Zhu Z, Zhao Z. Janus-Inspired Core-Shell Structure Hydrogel Programmatically Releases Melatonin for Reconstruction of Postoperative Bone Tumor. ACS Appl Mater Interfaces 2023; 15:2639-2655. [PMID: 36603840 PMCID: PMC9869893 DOI: 10.1021/acsami.2c18545] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
At present, surgery is one of the main treatments for bone tumor. However, the risk of recurrence and the large area of bone defects after surgery pose a great challenge. Therefore, a Janus-inspired core-shell structure bone scaffold was designed to achieve the self-programmed release of melatonin at different concentrations, clearing the residual tumor cells at early stage after resection and promoting bone repair later. The layered differential load designs inspired by Janus laid the foundation for the differential release of melatonin, where sufficient melatonin inhibited tumor growth as low dose promoted osteogenesis. Then, the automatically programmed delivery of melatonin is achieved by the gradient degradation of the core-shell structure. In the material characterization, scanning electron microscopy revealed the core-shell structure. The drug release experiment and in vivo degradation experiment reflected the programmed differential release of melatonin. In the biological experiment part, in vivo and in vitro experiments not only confirmed the significant inhibitory effect of the core-shell hydrogel scaffold on tumor but also confirmed its positive effect on osteogenesis. Our Janus-inspired core-shell hydrogel scaffold provides a safe and efficient means to inhibit tumor recurrence and bone repair after bone tumor, and it also develops a new and efficient tool for differential and programmed release of other drugs.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Xiaoyue Wu
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Yifan Zhao
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Yanhua Liu
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Bo Zhang
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Mingxin Qiao
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Zhou Zhu
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Zhihe Zhao
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
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18
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Long Y, Wu Q, Zuo X, Zhang G, Zhang Z, Yang Z, Liang F. Flask-like Janus Colloidal Motors with Explicit Direction and Tunable Speed. ACS Nano 2022; 16:16690-16698. [PMID: 36251358 DOI: 10.1021/acsnano.2c06235] [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: 06/16/2023]
Abstract
Nanoparticles with an anisotropic morphology and composition are flourishing in various scientific fields. Their morphology has a great impact on their functions, but the precise regulation of their growth and final morphology is still challenging. Here, flask-like Janus particles (FJPs) with different compositions segmented on the inner and outer surfaces were fabricated via a sol-gel process using different silane precursors. The neck length of the flask-like particles can be controllably regulated by employing different silane precursors. The Pt catalyst was selectively loaded in their cavities, and as-formed FJPs@Pt are employed as colloidal motors. Due to the adjustable neck length, the Janus colloidal motors have explicit directionality and tunable speeds (max diffusion coefficient is 18.2 μm2 s-1).
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Affiliation(s)
- Yingchun Long
- Department of Chemical Engineering, Tsinghua University, Beijing100084, P.R. China
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang110036, P.R. China
| | - Qiuhua Wu
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang110036, P.R. China
| | - Xiuyuan Zuo
- Department of Chemical Engineering, Tsinghua University, Beijing100084, P.R. China
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang110036, P.R. China
| | - Guolin Zhang
- Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang110036, P.R. China
| | - Zexin Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P.R. China
| | - Zhenzhong Yang
- Department of Chemical Engineering, Tsinghua University, Beijing100084, P.R. China
| | - Fuxin Liang
- Department of Chemical Engineering, Tsinghua University, Beijing100084, P.R. China
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19
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Yang W, Huang C, Shen X. Water-compatible Janus molecularly imprinted particles with mouth-like opening: Rapid removal of pharmaceuticals from hospital effluents. Chemosphere 2022; 304:135350. [PMID: 35714963 DOI: 10.1016/j.chemosphere.2022.135350] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/18/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Pharmaceuticals in hospital effluents, often discharged into the public sewage network without sufficient treatment, have shown negative impacts to the human health and aquatic environment. However, the conventional adsorbents used to remove these micropollutants had several deficiencies, including slow uptake kinetics and poor selectivity. To overcome these challenges, water-compatible Janus MIP particles (J-MIPs) with mouth-like openings were synthesized using seeded interfacial polymerization in this work. Among the series of J-MIPs, the selected J-MIP3 showed fast binding kinetics (∼40 s) towards the target pollutant. The theoretical and instrumental analysis suggested that the electrostatic interaction, hydrogen bond and hydrophobic reaction constituted the dominant mechanism for J-MIP3's recognition of target pharmaceutical. Selectivity and robustness tests indicated that the synthetic method was promising in practical application. Finally, the feasibility of the J-MIP3 fixed-bed column in the rapid removal of propranolol (PRO) from hospital effluents was successfully demonstrated. Compared to the activated carbon fixed-bed column, the J-MIP3 fixed-bed column showed at least 7-fold enhancement in its treatment efficiency. To the best of our knowledge, this is the first time that the accelerated mass transfer and fast removal of the pharmaceutical from wastewater have been achieved by the synthetic receptor with asymmetric structure. We believe the present study will open new avenues for the development of multi-functional molecularly imprinted polymers as well as Janus materials in environmental science.
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Affiliation(s)
- Weiyingxue Yang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Chuixiu Huang
- Department of Forensic Medicine, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Xiantao Shen
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
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20
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Martins Quintela MFC, Costa AT, Peres NMR. Excitonic instability in transition metal dichalcogenides. J Phys Condens Matter 2022; 34:455303. [PMID: 36063813 DOI: 10.1088/1361-648x/ac8f7d] [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: 06/07/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
When transition-metal dichalcogenide monolayers lack inversion symmetry, their low-energy single particle spectrum near some high-symmetry points can, in some cases, be described by tilted massive Dirac Hamiltonians. The so-called Janus materials fall into that category. Inversion symmetry can also be broken by the application of out-of-plane electric fields, or by the mere presence of a substrate. Here we explore the properties of excitons in TMDC monolayers lacking inversion symmetry. We find that exciton binding energies can be larger than the electronic band gap, making such materials promising candidates to host the elusive exciton insulator phase. We also investigate the excitonic contribution to their optical conductivity and discuss the associated optical selection rules.
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Affiliation(s)
- M F C Martins Quintela
- Department of Physics and Centre of Physics of the Universites of Minho and Porto (CF-UM-UP), Campus of Gualtar, 4710-057 Braga, Portugal
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, 4715-330 Braga, Portugal
| | - A T Costa
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, 4715-330 Braga, Portugal
| | - N M R Peres
- Department of Physics and Centre of Physics of the Universites of Minho and Porto (CF-UM-UP), Campus of Gualtar, 4710-057 Braga, Portugal
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, 4715-330 Braga, Portugal
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21
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Chen J, Xu W, Li X, Sun L, Zhong Z, Zhang Z, Tang Y. Near infrared optically responsive Ag-Cu bimetallic 2D nanocrystals with controllable spatial structures. J Colloid Interface Sci 2022; 628:660-669. [PMID: 36027776 DOI: 10.1016/j.jcis.2022.08.115] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/16/2022] [Accepted: 08/16/2022] [Indexed: 11/25/2022]
Abstract
The optical properties of cost-effective Ag-Cu bimetallic nanocrystals, with synergistically enhanced catalytic and biological activities, are limited within ultraviolet-visible region due to lack of morphology control. In order to overcome this constraint, two-dimensional (2D) Ag-Cu bimetallic heterostructures were designed and synthesized by a seed-mediated colloidal growth method. The conformal Cu domain was epitaxially deposited on Ag nanoplates with different spatial configuration under retention of their 2D shape. Both of the 2D Ag-Cu core@shell and Janus structures display tunable localized surface plasmon resonance from visible to near infrared regions. The results of catalytic reduction of 4-nitrophenol show that the 2D Ag-Cu core@shell structure has better synergistic catalytic performance than Janus structure and Ag plates. In addition to surface-related synergistically enhanced bactericidal performance, their antibacterial effect can also be significantly enhanced by near infrared light irradiation. These results indicate that 2D Ag-Cu heterostructures can benefit from both synergistically improved surface activity and great optical responsive characteristics.
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Affiliation(s)
- Jie Chen
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China
| | - Wenhao Xu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China
| | - Xingjin Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China
| | - Libo Sun
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China
| | - Zihan Zhong
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China
| | - Zitao Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China
| | - Yun Tang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Collaborative Innovation Center of Chemistry for Energy Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China.
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22
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Li F, Wang S, Zhao X, Shao L, Pan Y. Durable Superoleophobic Janus Fabric with Oil Repellence and Anisotropic Water-Transport Integration toward Energetic-Efficient Oil-Water Separation. ACS Appl Mater Interfaces 2022; 14:37170-37181. [PMID: 35938401 DOI: 10.1021/acsami.2c09545] [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
Porous materials with opposing superwettability toward oil and water have aroused widespread interest for their selective-wetting advantage in oil-water separation. The separation process, however, requires constant energy input to maintain the driving force. Further reducing the external energy consumption or accelerating the liquid transport during separation is still a challenge. The Janus membrane is an emerging porous material with opposing wettability toward a specific liquid on each side. The asymmetric wettability distribution leads to a surface energy gradient-driven liquid-transport behavior through the thickness, which significantly facilitates liquid transportation. It is conceived that porous materials possessing both Janus features and selective superwettability would reduce energy consumption and strengthen the efficiency in oil-water separation. Herein, a novel durable superoleophobic (SOHB) Janus fabric which possesses oil-repellent and surface energy gradient-driven water-transport properties was developed through one-side superoleophobic/superhydrophilic modification of the superamphiphobic fabric. The SOHB Janus fabric exhibits high mechanical durability and significant superior capacity than the homogeneous superoleophobic/superhydrophilic fabric in separating various oil-water mixtures. Moreover, the SOHB Janus fabric repels oil contaminants and pumps perspiration from the human skin, exhibiting prospects in physical moisture regulation and comfort improvement. Our novel Janus fabric, along with the fabrication principle, provides a feasible solution for energetic-efficient oil-water remediations and would have implications for the fabrication of advanced separation membranes and intelligent functional clothing.
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Affiliation(s)
- Feiran Li
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Shuai Wang
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xuezeng Zhao
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yunlu Pan
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education and School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
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An H, Gu Z, Zhou L, Liu S, Li C, Zhang M, Xu Y, Zhang P, Wen Y. Janus mucosal dressing with a tough and adhesive hydrogel based on synergistic effects of gelatin, polydopamine, and nano-clay. Acta Biomater 2022; 149:126-138. [PMID: 35840105 DOI: 10.1016/j.actbio.2022.07.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/21/2022] [Accepted: 07/06/2022] [Indexed: 12/27/2022]
Abstract
There are many problems and challenges related to the treatment of highly prevalent oral mucosal diseases and oral drug delivery because of a large amount of saliva present in the oral cavity, the accompanying oral movements, and unconscious swallowing in the mouth. Therefore, an ideal oral dressing should possess stable adhesion and superior tough strength in the oral cavity. However, this fundamental requirement greatly limits the use of synthetic adhesive dressings for oral dressings. Here, we developed a mussel-inspired Janus gelatin-polydopamine-nano-clay (GPC) hydrogel with controlled adhesion and toughness through the synergistic physical and chemical interaction of gelatin (Gel), nano-clay, and dopamine (DA). The hydrogel not only exhibits strong wet adhesion force (63 kPa) but also has high toughness (1026 ± 100 J m-3). Interfacial adhesion of hydrogels is achieved by modulating the interaction of catechol groups of the hydrogel with specific functional groups (e.g., NH2, SH, OH, and COOH) on the tissue surface. The matrix dissipation of the hydrogel is regulated by physical crosslinking of gelatin, chemical crosslinking of gelatin with polydopamine (Michael addition and Schiff base formation), and nano-clay-induced constraint of the molecular chain. In addition, the GPC hydrogel shows high cell affinity and favors cell adhesion and proliferation. The hydrogel's instant and strong mucoadhesive properties provide a long-lasting therapeutic effect of the drug, thereby enhancing the healing of oral ulcers. Therefore, mussel-inspired wet-adhesion Janus GPC hydrogels can be used as a platform for mucosal dressing and drug delivery systems. STATEMENT OF SIGNIFICANCE: It is a great challenge to treat oral mucosal diseases due to the large amount of saliva present in the oral cavity, the accompanying oral movements, unconscious swallowing, and flushing of drugs in the mouth. To overcome the significant limitations of clinical bioadhesives, such as weakness, toxicity, and poor usage, in the present study, we developed a simple method through the synergistic effects of gelatin, polydopamine, and nano-clay to prepare an optimal mucosal dressing (Janus GPC) that integrates Janus, adhesion, toughness, and drug release property. It fits effectively in the mouth, resists saliva flushing and oral movements, provides oral drug delivery, and reduces patient discomfort. The Janus GPC adhesive hydrogels have great commercial potential to support further the development of innovative therapies for oral mucosal diseases.
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Affiliation(s)
- Heng An
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering University of Science and Technology Beijing; Beijing 100083, China
| | - Zhen Gu
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering University of Science and Technology Beijing; Beijing 100083, China.
| | - Liping Zhou
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering University of Science and Technology Beijing; Beijing 100083, China
| | - Songyang Liu
- Department of Orthopaedics and Trauma Peking University People's Hospital; Beijing 100044, China
| | - Ci Li
- Department of Orthopaedics and Trauma Peking University People's Hospital; Beijing 100044, China
| | - Meng Zhang
- Department of Orthopaedics and Trauma Peking University People's Hospital; Beijing 100044, China
| | - Yongxiang Xu
- Department of Dental Materials, Peking University School and Hospital of Stomatology; Beijing, 100081, China
| | - Peixun Zhang
- Department of Orthopaedics and Trauma Peking University People's Hospital; Beijing 100044, China
| | - Yongqiang Wen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering University of Science and Technology Beijing; Beijing 100083, China.
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24
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Yuan S, Wang J, Xiang Y, Zheng S, Wu Y, Liu J, Zhu X, Zhang Y. Shedding Light on Luminescent Janus Nanoparticles: From Synthesis to Photoluminescence and Applications. Small 2022; 18:e2200020. [PMID: 35429137 DOI: 10.1002/smll.202200020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Luminescent Janus nanoparticles refer to a special category of Janus-based nanomaterials that not only exhibit dual-asymmetric surface nature but also attractive optical properties. The introduction of luminescence has endowed conventional Janus nanoparticles with many alluring light-responsive functionalities and broadens their applications in imaging, sensing, nanomotors, photo-based therapy, etc. The past few decades have witnessed significant achievements in this field. This review first summarizes well-established strategies to design and prepare luminescent Janus nanoparticles and then discusses optical properties of luminescent Janus nanoparticles based on downconversion and upconversion photoluminescence mechanisms. Various emerging applications of luminescent Janus nanoparticles are also introduced. Finally, opportunities and future challenges are highlighted with respect to the development of next-generation luminescent Janus nanoparticles with diverse applications.
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Affiliation(s)
- Shanshan Yuan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jing Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yi Xiang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Shanshan Zheng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yihan Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jinliang Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Xiaohui Zhu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yong Zhang
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117583, Singapore
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Mi X, Zhao X, Ji M, Jiang Z, Zhang B, Chen H, Sun Z, Li J, Zhang Z, Zheng H. Twinned-Au-tip-induced growth of plasmonic Au-Cu Janus nanojellyfish in upconversion luminescence enhancement. J Colloid Interface Sci 2022; 624:196-203. [PMID: 35660888 DOI: 10.1016/j.jcis.2022.05.143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/15/2022] [Accepted: 05/24/2022] [Indexed: 11/21/2022]
Abstract
The metallic Janus nanoparticle is an emerging plasmonic nanostructure that has attracted attention in the fields of materials science and nanophotonics. The instability of the Cu nanostructure leads to very complex nucleation and growth kinetics, and synthesis of Cu Janus nanoparticle has challenges. Here, we report a new method for synthesis of Au-Cu Janus nanojellyfish (JNF) by using twinned tips of Au nanoflower (NF) as seeds. The twinned nanotip of the Au NF and the large lattice mismatch between Au and Cu can induce formation of twin defects during the growth process, resulting in asymmetric deposition of Cu atoms. The symmetry-breaking using different sizes of Au NF and Cu nanodomains within the Au-Cu JNF can controllably change the localized surface plasmon resonance (LSPR) modes. The asymmetric Au-Cu JNF can induce plasmon coupling between dipolar and multipolar modes, which leads to clear electric-field enhancement in the near-infrared region. An Au-Cu JNF with multiple LSPR modes was chosen to simultaneously match the excitation and emission bands of the lanthanide-doped upconversion nanoparticles (UCNPs). A 5000-fold enhancement of the upconversion luminescence was achieved by using single plasmonic Au-Cu JNF. The Au-Cu JNF can also provide a guide for new metallic Janus nanoparticles in the fields of plasmonic, photothermal conversion, and nanomotors.
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26
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Abdollahi M, Bagheri Tagani M. Janus 2H-VSSe monolayer: two-dimensional valleytronic semiconductor with nonvolatile valley polarization. J Phys Condens Matter 2022; 34:185702. [PMID: 35100572 DOI: 10.1088/1361-648x/ac506f] [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: 11/11/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Valleytronic as a hot topic in recent years focuses on electrons' valley degree of freedom as a quantum information carrier. Here, by combining two-bandk.pmodel with high-throughput density functional theory (DFT) calculations, the valley states of Janus 2H-VSSe monolayer are studied which have spontaneous polarization. Nonvolatile valley polarization state is mainly arises from intrinsic ferromagnetism contributed by V-3d electronic configuration and not the spontaneous out-of-plane dipole moment of VSSe monolayer. The effective Hamiltonian model and DFT calculations both showed that the valley splitting mainly originates from the smaller spin splitting coming from the spin-orbit coupling effect rather than the spin splitting of magnetic exchange field. By using the effective Dirac Hamiltonian and Kubo formula, we further calculated the longitudinal and transversal conductivities and absorption spectra of VSSe monolayer which exhibits an anomalous valley Hall effect and clear valley-selective circular dichroism. Our calculations indicate that the modification of valley and spin splitting related to Berry curvature by applying an external strain is more noticeable than by the change of the magnetic moment orientation and electric field. We found that carriers accumulation with particular spin and valley label can be manipulated by tuning effective Hamiltonian parameters. The coexistence of robust in-plane magnetic ordering and spontaneous valley polarization of 2H-VSSe monolayer supports the possibility of applications in spintronics, valleytronics and optoelectronics devices.
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Affiliation(s)
- Mahsa Abdollahi
- Department of Physics, University of Guilan, P.O. Box 41335-1914, Rasht, Iran
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27
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Mohd G, Majid K, Lone S. Multiscale Janus Surface Structure of Trifolium Leaf with Atmospheric Water Harvesting and Dual Wettability Features. ACS Appl Mater Interfaces 2022; 14:4690-4698. [PMID: 34985254 DOI: 10.1021/acsami.1c20463] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 06/14/2023]
Abstract
Numerous fascinating hierarchical surfaces from nature, including cactus spines, rice leaves, Namib desert beetle, spider silks, and pitcher plants, have been thoroughly investigated to emulate and architect superior surfaces for capturing sustainable, clean, and safe freshwater from the atmosphere. Hitherto, the adaxial side of biological surfaces has been meticulously investigated for wettability and atmospheric water harvesting (AWH) applications. However, the abaxial face has not yet attracted much scientific scrutiny. Here, we revealed the multifunctional Janus surface traits of Trifolium pratense (i.e., red clover) leaf with extrusive atmospheric water fishing ability on both adaxial and abaxial faces. Water harvesting is performed by conical outgrowths (microhairs). The individual hair's intriguing topography comprises asymmetric shape and surface roughness, which plays synergetic roles in water deposition and directional transport. The water collection quantity on the leaf surface is a function of hair density, which varies significantly on two sides. Noticeably, instead of gravitational pull, the hairs perform water reaping competence under the collective impact of surface energy and Laplace pressure gradients. Consequently, both straight-up and upside-down water harvesting are presented. Furthermore, the leaf surface exhibits dual water wettability features. The upper side manifests the water-repelling and water roll-off phenomenon. In contrast, the lower surface displays a water-retaining/or pinning effect. Optical microscopy, scanning electronic microscopy, real-time optical visualization, and contact angle analysis were employed to characterize the natural and template specimens. The dorsiventral asymmetry of the Trifolium leaf examined in this work could be helpful for a plethora of applications, such as scalable AWH, rainwater collection, self-cleaning, and adhesive fixtures.
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Affiliation(s)
- Ghulam Mohd
- Department of Chemistry, National Institute of Technology (NIT), J&K, Srinagar 190006, India
- iDREAM (Interdisciplinary Division for Renewable Energy & Advanced Materials), NIT, Srinagar 190006, India
| | - Kowsar Majid
- Department of Chemistry, National Institute of Technology (NIT), J&K, Srinagar 190006, India
- iDREAM (Interdisciplinary Division for Renewable Energy & Advanced Materials), NIT, Srinagar 190006, India
| | - Saifullah Lone
- Department of Chemistry, National Institute of Technology (NIT), J&K, Srinagar 190006, India
- iDREAM (Interdisciplinary Division for Renewable Energy & Advanced Materials), NIT, Srinagar 190006, India
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Tang J, Peng L, Chen D, Xie J, Chen M, Wu J, Hao X, Cai W, Zheng F, Shi J. Environmentally Responsive Intelligent Dynamic Water Collector. ACS Appl Mater Interfaces 2022; 14:2202-2210. [PMID: 34978403 DOI: 10.1021/acsami.1c17477] [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: 06/14/2023]
Abstract
Collecting water from fog flow is emerging as a promising solution to the water shortage problem. This work demonstrated a novel environmentally responsive water collector made from a self-prepared Janus polyvinyl alcohol sponge in combination with a two-way shape memory alloy spring, which transforms the traditional manner of static water collection into a dynamic one. The unidirectional water transport of the Janus structure together with the dynamic collection approach correspond to a 30.8% increase in the water-collection rate (WCR). The resultant WCR is up to 5.1 g/h, which ranks relatively high compared to similar studies. The light- and thermal-response capability, easy fabrication, and good cycling performance indicate that our devices could be utilized in a variety of applications. In this work, an efficient, intelligent adaptive, simple-preparation, precision-guided, and economical fog-collecting devices are recommended. Our work provides new insights on the design of high-efficient water collectors with practicability.
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Affiliation(s)
- Jie Tang
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Linhui Peng
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Daqi Chen
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Jingting Xie
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Mingchuang Chen
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Jinlei Wu
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Xi Hao
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Wanzhu Cai
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Feipeng Zheng
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
| | - Jifu Shi
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou 510632, China
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Wan X, Chen E, Yao J, Gao M, Miao X, Wang S, Gu Y, Xiao S, Zhan R, Chen K, Chen Z, Zeng X, Gu X, Xu J. Synthesis and Characterization of Metallic Janus MoSH Monolayer. ACS Nano 2021; 15:20319-20331. [PMID: 34870978 DOI: 10.1021/acsnano.1c08531] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Janus transition-metal dichalcogenides (TMDCs) are emerging as special 2D materials with different chalcogen atoms covalently bonded on each side of the unit cell, resulting in interesting properties. To date, several synthetic strategies have been developed to realize Janus TMDCs, which first involves stripping the top-layer S of MoS2 with H atoms. However, there has been little discussion on the intermediate Janus MoSH. It is critical to find the appropriate plasma treatment time to avoid sample damage. A thorough understanding of the formation and properties of MoSH is highly desirable. In this work, a controlled H2-plasma treatment has been developed to gradually synthesize a Janus MoSH monolayer, which was confirmed by the TOF-SIMS analysis as well as the subsequent fabrication of MoSSe. The electronic properties of MoSH, including the high intrinsic carrier concentration (∼2 × 1013 cm-2) and the Fermi level (∼ - 4.11 eV), have been systematically investigated by the combination of FET device study, KPFM, and DFT calculations. The results demonstrate a method for the creation of Janus MoSH and present the essential electronic parameters which have great significance for device applications. Furthermore, owing to the metallicity, 2D Janus MoSH might be a potential platform to observe the SPR behavior in the mid-infrared region.
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Affiliation(s)
- Xi Wan
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - EnZi Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology and Guangdong Province Key Laboratory of Display Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Jie Yao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Mingliang Gao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Xin Miao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Shuai Wang
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Yanyun Gu
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Shaoqing Xiao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Runze Zhan
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology and Guangdong Province Key Laboratory of Display Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Kun Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology and Guangdong Province Key Laboratory of Display Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Zefeng Chen
- School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, China
| | - Xiaoliang Zeng
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiaofeng Gu
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Jianbin Xu
- Department of Electronic Engineering and Materials Science and Technology Research Center, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region 999077, People's Republic of China
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30
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Deng Z, Lin B, Wang W, Bai L, Chen H, Yang L, Yang H, Wei D. Stretchable, rapid self-healing guar gum-poly(acrylic acid) hydrogels as wearable strain sensors for human motion detection based on Janus graphene oxide. Int J Biol Macromol 2021; 191:627-636. [PMID: 34536475 DOI: 10.1016/j.ijbiomac.2021.09.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/03/2021] [Accepted: 09/09/2021] [Indexed: 12/14/2022]
Abstract
Wearable strain sensors have received widespread attention in research fields due to their applications in human motion detection. In this manuscript, the fabrication of functionalized Janus graphene oxide (GO) nanosheets were used by Pickering emulsion template. Polypyrrole (PPy) and poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) were asymmetrically grafted on the two sides of GO (GO@PPy/PDMAEMA Janus NS), which successfully applied to synthesize Janus NS/guar gum-poly(acrylic acid) (GG-PAA) self-healing nanocomposite hydrogels. The outstandingly improved self-healing efficiency (92.8% for 2 h) and mechanical properties (strength of 4.12 MPa and toughness of 873.8%) of nanocomposite hydrogels were mainly supported by the collaborative effect of reversible electrostatic interactions, multiple hydrogen bonds and metal-ligand coordination. Moreover, the hydrogels exhibited strain sensitivity and could be able to monitor a variety of human motions, which have outstanding application prospects in wearable flexible sensors.
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Affiliation(s)
- Zihan Deng
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Bencai Lin
- Changzhou University; Jiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou 213164, China
| | - Wenxiang Wang
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Liangjiu Bai
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Hou Chen
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Lixia Yang
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Huawei Yang
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Donglei Wei
- School of Chemistry and Materials Science, Ludong University; Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province; Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
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Jurado-Sánchez B, Campuzano S, Pingarrón JM, Escarpa A. Janus particles and motors: unrivaled devices for mastering (bio)sensing. Mikrochim Acta 2021; 188:416. [PMID: 34757512 PMCID: PMC8579181 DOI: 10.1007/s00604-021-05053-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/13/2021] [Indexed: 12/19/2022]
Abstract
Janus particles are a unique type of materials combining two different functionalities in a single unit. This allows the combination of different analytical properties leading to new analytical capabilities, i.e., enhanced fluid mixing to increase sensitivity with targeting capturing abilities and unique advantages in terms of multi-functionality and versatility of modification, use, and operation both in static and dynamic modes. The aim of this conceptual review is to cover recent (over the last 5 years) advances in the use of Janus microparticles and micromotors in (bio)-sensing. First, the role of different materials and synthetic routes in the performance of Janus particles are described. In a second main section, electrochemical and optical biosensing based on Janus particles and motors are covered, including in vivo and in vitro methodologies as the next biosensing generation. Current challenges and future perspectives are provided in the conclusions section.
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Affiliation(s)
- Beatriz Jurado-Sánchez
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, Alcala de Henares E-28871, Madrid, Spain.
- Chemical Research Institute "Andrés M. del Río", University of Alcala, Alcala de Henares E-28871, Madrid, Spain.
| | - Susana Campuzano
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - José M Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, Alcala de Henares E-28871, Madrid, Spain.
- Chemical Research Institute "Andrés M. del Río", University of Alcala, Alcala de Henares E-28871, Madrid, Spain.
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Zheng L, Liu N, Liu Y, Li N, Zhang J, Wang C, Zhu W, Chen Y, Ying D, Xu J, Yang Z, Gao X, Tang J, Wang X, Liang Z, Zou R, Li Y, Gao P, Wei X, Wang HW, Peng H. Atomically Thin Bilayer Janus Membranes for Cryo-electron Microscopy. ACS Nano 2021; 15:16562-16571. [PMID: 34569229 DOI: 10.1021/acsnano.1c06233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 06/13/2023]
Abstract
Cryo-electron microscopy (cryo-EM) has emerged as a vital tool to reveal the native structure of beam-sensitive biomolecules and materials. Yet high-resolution cryo-EM analysis is still limited by the poorly controlled specimen preparation and urgently demands a robust supporting film material to prepare desirable samples. Here, we developed a bilayer Janus graphene membrane with the top-layer graphene being functionalized to interact with target molecules on the surface, while the bottom layer being kept intact to reinforce its mechanical steadiness. The ultraclean and atomically thin bilayer Janus membrane prepared by our protocol on one hand generates almost no extra noise and on the other hand reduces the specimen motion during cryo-EM imaging, thus allowing the atomic-resolution characterization of surface functional groups. Using such Janus membranes in cryo-EM specimen preparation, we were able to directly image the lithium dendrite and reconstruct macromolecules at near-atomic resolution. Our results demonstrate the bilayer Janus design as a promising supporting material for high-resolution cryo-EM and EM imaging.
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Affiliation(s)
- Liming Zheng
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Nan Liu
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ying Liu
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Ning Li
- International Center for Quantum Materials and Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jincan Zhang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Chongzhen Wang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles California 90095, United States
| | - Wenqing Zhu
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Yanan Chen
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Dongchen Ying
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jie Xu
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Zi Yang
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xiaoyin Gao
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jilin Tang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Xiaoge Wang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zibin Liang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Ruqiang Zou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Yuzhang Li
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles California 90095, United States
| | - Peng Gao
- International Center for Quantum Materials and Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
| | - Xiaoding Wei
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Hong-Wei Wang
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
- Beijing Frontier Research Center for Biological Structures, Tsinghua University, Beijing 100084, China
| | - Hailin Peng
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- Beijing Graphene Institute (BGI), Beijing 100095, China
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López-Martín R, Burgos BS, Normile PS, De Toro JA, Binns C. Gas Phase Synthesis of Multi-Element Nanoparticles. Nanomaterials (Basel) 2021; 11:2803. [PMID: 34835568 PMCID: PMC8618514 DOI: 10.3390/nano11112803] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 11/16/2022]
Abstract
The advantages of gas-phase synthesis of nanoparticles in terms of size control and flexibility in choice of materials is well known. There is increasing interest in synthesizing multi-element nanoparticles in order to optimize their performance in specific applications, and here, the flexibility of material choice is a key advantage. Mixtures of almost any solid materials can be manufactured and in the case of core-shell particles, there is independent control over core size and shell thickness. This review presents different methods of producing multi-element nanoparticles, including the use of multiple targets, alloy targets and in-line deposition methods to coat pre-formed cores. It also discusses the factors that produce alloy, core-shell or Janus morphologies and what is possible or not to synthesize. Some applications of multi-element nanoparticles in medicine will be described.
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Affiliation(s)
| | | | | | | | - Chris Binns
- Departamento de Física Aplicada, Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla la Mancha, 13071 Ciudad Real, Spain; (R.L.-M.); (B.S.B.); (P.S.N.); (J.A.D.T.)
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34
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Huang Z, Hao J, Blackburn JL, Beard MC. Pyroelectricity of Lead Sulfide (PbS) Quantum Dot Films Induced by Janus-Ligand Shells. ACS Nano 2021; 15:14965-14971. [PMID: 34402613 DOI: 10.1021/acsnano.1c05185] [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: 06/13/2023]
Abstract
Asymmetry is an essential property to control. To do that in nanocrystalline systems we have developed methods to produce Janus-ligand shells on otherwise symmetric PbS quantum dots (QDs). Here, we demonstrate that control by constructing a system that exhibits pyroelectricity built from spherical PbS QDs. We observed a pyroelectric current in two different configurations. In one configuration, the QDs are self-assembled into close-packed arrays while in the second configuration, the QDs are dispersed into an electro-inactive polymer, polydimethylsiloxane. Both exhibit a pyroelectric response. In the first configuration we estimate a lower limit of the pyroelectric coefficient to be 1.97 × 10-7 C/m2·K, which is likely limited by the degree of QD alignment during film formation but is already on par with common pyroelectric systems. Compared with inorganic ceramic-like and polymeric pyroelectric materials, pyroelectric films self-assembled from polar QDs are easier to prepare, responsive to light with different energies based on QD exciton energy, and the polarization of each QD could be easily tuned by constructing different Janus-ligand shells.
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Affiliation(s)
- Zhiyuan Huang
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Ji Hao
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Jeffrey L Blackburn
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Matthew C Beard
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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Shi C, Zhang X, Zhang X, Chen P, Xu L. Ultrasonic desulfurization of amphiphilic magnetic- Janus nanosheets in oil-water mixture system. Ultrason Sonochem 2021; 76:105662. [PMID: 34265635 PMCID: PMC8281658 DOI: 10.1016/j.ultsonch.2021.105662] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/14/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
Fe3O4 was obtained by reacting FeCl2 and FeCl3 with polyethylene glycol, and labeled onto a amphiphilic Janus nanosheet. It was confirmed by infrared spectroscopy, SEM, AFM and EDS that the Fe3O4 nanoparticles changed from hydrophilic to amphiphilic. The oxidative desulfurization performance of amphiphilic iron oxide was studied. Results showed that the Janus nanosheets labeled with Fe3O4 could significantly improve the removal rate of thiophene sulfide in simulated oil synergistically with ultrasonic waves, and the desulfurization rate could reach 100%. Further, the effect of ultrasound on the sensing ability of the oil-water interface was studied and the ultrasonic attenuation coefficient was calculated. In addition to the desulfurization mechanism of Fe3O4, it was found that although the ultrasonic attenuation coefficient of the amphiphilic nanosheets was high, the number of hydroxyl radicals determined the desulfurization efficiency. The amphiphilic Fe ions were more favorable for the formation of hydroxyl radicals than the single hydrophilic ones.
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Affiliation(s)
- Chunwei Shi
- Liaoning Shihua University, Fushun 113001, China; Administration Center of the Yellow River Delta Sustainable Development Institute of Shandong Province, Dongying 257001, China.
| | - Xue Zhang
- Liaoning Shihua University, Fushun 113001, China
| | - Xiaoyan Zhang
- Liaoning Nuclear and Radiation Testing Center, Dalian 116107, China
| | - Ping Chen
- Liaoning Shihua University, Fushun 113001, China
| | - Lingzi Xu
- Liaoning Shihua University, Fushun 113001, China
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36
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Agaba A, Marriam I, Tebyetekerwa M, Yuanhao W. Janus hybrid sustainable all-cellulose nanofiber sponge for oil-water separation. Int J Biol Macromol 2021; 185:997-1004. [PMID: 34237368 DOI: 10.1016/j.ijbiomac.2021.07.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 11/12/2022]
Abstract
Two-faced characteristics and performance of materials driven by asymmetric physical or chemical properties exist in Janus hybrid materials which show synergistic and improved properties for a variety of applications. Here, we report a facile synthesis of Janus hybrid sustainable cellulose nanofibers (CNFs) sponge with asymmetric wettability and strong mechanical property for excellent separation efficiency of oil-water emulsions. Briefly, the CNF Janus hybrid sponge was fabricated by freeze-drying of two separate CNF suspensions into one, each prepared separately by introducing CNFs in methyltrimethoxysilane (MTMS) or 3-glycidoxypropyltrimethoxysilane (GPTMS) for hydrophobic or hydrophilic performance, respectively. The sponge demonstrated satisfactory mechanical stability with an excellent recovery from 80% compressive strain and high pore tortuosity. When employed for oil-water separation, the Janus hybrid sponge could selectively be used to collect water or oil by just switching its side facing the oil-water mixture feed via unidirectional gravity-assisted separation, with recyclability. The fabrication of such Janus hybrid sponge is one of the many approaches for utilizing nanofibers in structurally adaptive, self-supported asymmetric membrane structures in a 3D network.
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Affiliation(s)
- Aphra Agaba
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, PR China
| | - Ifra Marriam
- School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, 2 George St, Brisbane, Qld 4000, Australia
| | - Mike Tebyetekerwa
- School of Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT 2601, Australia.
| | - Wang Yuanhao
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, PR China.
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Abstract
Polymeric particles with intricate morphologies and properties have been developed based on bioinspired designs for applications in regenerative medicine, tissue engineering, and drug delivery. However, the fabrication of particles with asymmetric functionalities remains a challenge. Janus polymeric particles are an emerging class of material with asymmetric functionalities; however, they are predominantly spherical in morphology, made from non-biocompatible materials, and made using specialized fabrication techniques. We therefore set out to fabricate nonspherical Janus particles inspired by high aspect ratio filamentous bacteriophage using polycaprolactone polymers and standard methods. Janus high aspect ratio particles (J-HARPs) were fabricated with a nanotemplating technique to create branching morphologies selectively at one edge of the particle. J-HARPs were fabricated with maleimide handles and modified with biomolecules such as proteins and biotin. Regioselective modification was observed at the tips of J-HARPs, likely owing to the increased surface area of the branching regions. Biotinylated J-HARPs demonstrated cancer cell biotin receptor targeting, as well as directional crosslinking with spherical particles via biotin-streptavidin interactions. Lastly, maleimide J-HARPs were functionalized during templating to contain amines exclusively at the branching regions and were dual-labeled orthogonally, demonstrating spatially separated bioconjugation. Thus, J-HARPs represent a new class of bioinspired Janus material with excellent regional control over biofunctionalization.
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Affiliation(s)
- Joel A Finbloom
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 204 Byers Hall, 1700 4 Street, San Francisco, CA 94158 USA
| | - Yiqi Cao
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 204 Byers Hall, 1700 4 Street, San Francisco, CA 94158 USA
| | - Tejal A Desai
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 204 Byers Hall, 1700 4 Street, San Francisco, CA 94158 USA
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Albert SK, Lee S, Durai P, Hu X, Jeong B, Park K, Park SJ. Janus Nanosheets with Face-Selective Molecular Recognition Properties from DNA-Peptide Conjugates. Small 2021; 17:e2006110. [PMID: 33721400 DOI: 10.1002/smll.202006110] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/23/2020] [Indexed: 06/12/2023]
Abstract
Chemical and functional anisotropy in Janus materials offer intriguing possibilities for constructing complex nanostructures and regulating chemical and biological reactions. Here, the authors report the fabrication of Janus nanosheets from molecular building blocks composed of two information-carrying biopolymers, DNA and peptides. Experimental and structural modeling studies reveal that DNA-peptide diblock conjugates assemble into Janus nanosheets with distinct DNA and peptide faces. The surprising level of structural control is attributed to the exclusive parallel β-sheet formation of phenylalanine-rich peptides. This approach is extended to triblock DNA1-peptide-DNA2 conjugates, which assemble into nanosheets presenting two different DNA on opposite faces. The Janus nanosheets with independently addressable faces are utilized to organize an enzyme pair for concerted enzymatic reactions, where enhanced catalytic activities are observed. These results demonstrate that the predictable and designable peptide interaction is a promising tool for creating Janus nanostructures with regio-selective and sequence-specific molecular recognition properties.
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Affiliation(s)
- Shine K Albert
- Department of Chemistry and Nanoscience, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, South Korea
| | - Sunghee Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, South Korea
| | - Prasannavenkatesh Durai
- KIST Gangneung Institute of Natural Products, 679, Saimdang-ro, Gangneung-si, Gangwon-do, 25451, South Korea
| | - Xiaole Hu
- Department of Chemistry and Nanoscience, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, South Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, South Korea
| | - Keunwan Park
- KIST Gangneung Institute of Natural Products, 679, Saimdang-ro, Gangneung-si, Gangwon-do, 25451, South Korea
| | - So-Jung Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, South Korea
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Yuan K, Jurado-Sánchez B, Escarpa A. Dual-Propelled Lanbiotic Based Janus Micromotors for Selective Inactivation of Bacterial Biofilms. Angew Chem Int Ed Engl 2021; 60:4915-4924. [PMID: 33216439 DOI: 10.1002/anie.202011617] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/28/2020] [Indexed: 12/18/2022]
Abstract
Graphene oxide/PtNPs/Fe2 O3 "dual-propelled" catalytic and fuel-free rotary actuated magnetic Janus micromotors modified with the lanbiotic Nisin are used for highly selective capture/inactivation of gram-positive bacteria units and biofilms. Specific interaction of Nisin with the Lipid II unit of Staphylococcus Aureus bacteria in connection with the enhanced micromotor movement and generated fluid flow result in a 2-fold increase of the capture/killing ability (both in bubble and magnetic propulsion modes) as compared with free peptide and static counterparts. The high stability of Nisin along with the high towing force of the micromotors allow for efficient operation in untreated raw media (tap water, juice and serum) and even in blood and in flowing blood in magnetic mode. The high selectivity of the approach is illustrated by the dramatically lower interaction with gram-negative bacteria (Escherichia Coli). The double-propulsion (catalytic or fuel-free magnetic) mode of the micromotors and the high biocompatibility holds considerable promise to design micromotors with tailored lanbiotics that can response to the changes that make the bacteria resistant in a myriad of clinical, environmental remediation or food safety applications.
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Affiliation(s)
- Kaisong Yuan
- Department of Analytical Chemistry, Physical Chemistry, and Chemical Engineering, University of Alcala, Alcala de Henares, 28871, Madrid, Spain.,Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, China
| | - Beatriz Jurado-Sánchez
- Department of Analytical Chemistry, Physical Chemistry, and Chemical Engineering, University of Alcala, Alcala de Henares, 28871, Madrid, Spain.,Chemical Research Institute "Andres M. del Rio", University of Alcala, 28871, Madrid, Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry, and Chemical Engineering, University of Alcala, Alcala de Henares, 28871, Madrid, Spain.,Chemical Research Institute "Andres M. del Rio", University of Alcala, 28871, Madrid, Spain
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Hajra D, Sailus R, Blei M, Yumigeta K, Shen Y, Tongay S. Epitaxial Synthesis of Highly Oriented 2D Janus Rashba Semiconductor BiTeCl and BiTeBr Layers. ACS Nano 2020; 14:15626-15632. [PMID: 33090763 DOI: 10.1021/acsnano.0c06434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The family of layered BiTeX (X = Cl, Br, I) compounds are intrinsic Janus semiconductors with giant Rashba-splitting and many exotic surface and bulk physical properties. To date, studies on these materials required mechanical exfoliation from bulk crystals which yielded thick sheets in nonscalable sizes. Here, we report epitaxial synthesis of Janus BiTeCl and BiTeBr sheets through a nanoconversion technique that can produce few triple layers of Rashba semiconductors (<10 nm) on sapphire substrates. The process starts with van der Waals epitaxy of Bi2Te3 sheets on sapphire and converts these sheets to BiTeCl or BiTeBr layers at high temperatures in the presence of chemically reactive BiCl3/BiBr3 inorganic vapor. Systematic Raman, XRD, SEM, EDX, and other studies show that highly crystalline BiTeCl and BiTeBr sheets can be produced on demand. Atomic level growth mechanism is also proposed and discussed to offer further insights into growth process steps. Overall, this work marks the direct deposition of 2D Janus Rashba materials and offers pathways to synthesize other Janus compounds belonging to MXY family members.
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Affiliation(s)
- Debarati Hajra
- Materials Science and Engineering, School for Engineering of Matter Transport of Energy, Arizona State University, Tempe, Arizona 85287, United States
- Department of Physics, Arizona State University, Tempe, Arizona 85287, United States
| | - Renee Sailus
- Materials Science and Engineering, School for Engineering of Matter Transport of Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Mark Blei
- Materials Science and Engineering, School for Engineering of Matter Transport of Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Kentaro Yumigeta
- Materials Science and Engineering, School for Engineering of Matter Transport of Energy, Arizona State University, Tempe, Arizona 85287, United States
- Department of Physics, Arizona State University, Tempe, Arizona 85287, United States
| | - Yuxia Shen
- Materials Science and Engineering, School for Engineering of Matter Transport of Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Sefaattin Tongay
- Materials Science and Engineering, School for Engineering of Matter Transport of Energy, Arizona State University, Tempe, Arizona 85287, United States
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Abstract
Colloidal crystals show structural colors through wavelength-selective diffraction at photonic stopbands. Here, we design photonic Janus balls with a controlled magnetic moment for programmable structural color switching. The Janus balls are produced from microfluidically produced paired drops of two distinct photocurable resins. The lighter resin contains magnetic nanoparticles and carbon black, whereas heavier one contains silica particles at a high volume fraction. The paired drops spontaneously align vertically due to the density asymmetry. The magnetic moment is assigned in the vertically aligned drops by aligning magnetic nanoparticles with an external field and capturing them through photopolymerization. Silica particles in the heavier compartment spontaneously form crystalline arrays due to interparticle repulsion, developing structural colors. The resulting photonic Janus balls vertically align without an external field, like a roly-poly toy, so that carbon-black-laden compartments face upward. With an external magnetic field, the Janus balls align their magnetic moment to the field and display structural colors. Importantly, the direction of the magnetic moment is set by the direction of the external field during photopolymerization, which enables the simultaneous manipulation of orientations of distinct photonic Janus balls in a programmed manner. These photonic Janus balls are potentially useful as active color inks for anti-counterfeiting tags.
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Affiliation(s)
- Seong Kyeong Nam
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jong Bin Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sang Hoon Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Shin-Hyun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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42
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Cheng H, Xiao D, Tang Y, Wang B, Feng X, Lu M, Vancso GJ, Sui X. Sponges with Janus Character from Nanocellulose: Preparation and Applications in the Treatment of Hemorrhagic Wounds. Adv Healthc Mater 2020; 9:e1901796. [PMID: 32691995 DOI: 10.1002/adhm.201901796] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 07/03/2020] [Indexed: 02/04/2023]
Abstract
The development of a rapid and effective hemostatic dressing is highly desired in the treatment of hemorrhagic wounds. In this study, sponges with Janus character are developed using cellulose nanofibers (CNFs) that exhibit materials facets of different wettability characteristics using heterogeneous mixing and freeze-drying. The bonding of the interface between the hydrophilic and hydrophobic facets is achieved by using interpenetrating chemical cross-linking between CNFs and organosilanes. The hydrophilic layer absorbs water from blood and works synergistically with the inherent hemostatic chitosan-rich complementary layer to accelerate blood clotting, displaying both active and passive hemostatic mechanisms. The hydrophobic layer prevents blood penetration into the construct and exerts proper pressure on the wound. Compared with the hydrophilic control samples and commercial gauzes, the Janus sponges can achieve effective bleeding control with nearly 50% less blood loss in a femoral artery injury model and prolong the survival time in a carotid artery injury model. Compared with the only hydrophilic layer, the time to hemostasis of Janus sponge are reduced from 165 ± 20 to 131 ± 26 s in femoral artery injury model and from 102 ± 21 to 83 ± 15 s in liver femoral artery injury model.
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Affiliation(s)
- Huan Cheng
- Key Lab of Science and Technology of Eco‐Textile Ministry of Education College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
- Materials Science and Technology of Polymers, MESA+ Institute of Nanotechnology University of Twente P.O. Box 217 Enschede AE 7500 The Netherlands
| | - Dongdong Xiao
- Department of Urology and Andrology Ren Ji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200001 China
- Shanghai Key Laboratory of Tissue Engineering Shanghai Ninth People's Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200011 China
| | - Yujing Tang
- Key Lab of Science and Technology of Eco‐Textile Ministry of Education College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Bijia Wang
- Key Lab of Science and Technology of Eco‐Textile Ministry of Education College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Xueling Feng
- Key Lab of Science and Technology of Eco‐Textile Ministry of Education College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Mujun Lu
- Department of Urology and Andrology Ren Ji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200001 China
| | - G. Julius Vancso
- Key Lab of Science and Technology of Eco‐Textile Ministry of Education College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
- Materials Science and Technology of Polymers, MESA+ Institute of Nanotechnology University of Twente P.O. Box 217 Enschede AE 7500 The Netherlands
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco‐Textile Ministry of Education College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
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43
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Chen K, Hu X, Zhu N, Guo K. Design, Synthesis, and Self-Assembly of Janus Bottlebrush Polymers. Macromol Rapid Commun 2020; 41:e2000357. [PMID: 32844547 DOI: 10.1002/marc.202000357] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/02/2020] [Indexed: 12/12/2022]
Abstract
Janus bottlebrush polymers are a class of special molecular brushes, which have two immiscible side chains on the repeating unit of the backbone. The characteristic architectures of Janus bottlebrush polymers enable unique self-assembly properties and broad applications. Recently, remarkable advances of Janus bottlebrush polymers have been achieved for polymer chemistry and material science. This review summarizes the synthetic strategies of Janus bottlebrush polymers, and highlights the self-assembly applications. Finally, the challenges and opportunities are proposed for the further development.
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Affiliation(s)
- Kerui Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China.,State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China
| | - Xin Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China.,College of Materials Science and Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China
| | - Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China.,State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China.,State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 S. Puzhu Road, Nanjing, Jiangsu, 211800, China
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44
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Yan Z, Liang Y, Hua W, Zhang XG, Lai W, Hu Z, Wang W, Peng J, Indris S, Wang Y, Chou SL, Liu H, Dou SX. Multiregion Janus-Featured Cobalt Phosphide-Cobalt Composite for Highly Reversible Room-Temperature Sodium-Sulfur Batteries. ACS Nano 2020; 14:10284-10293. [PMID: 32672932 DOI: 10.1021/acsnano.0c03737] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrode materials with high conductivity, strong chemisorption, and catalysis toward polysulfides are recognized as key factors for metal-sulfur batteries. Nevertheless, the construction of such functional material is a challenge for room-temperature sodium-sulfur (RT-Na/S) batteries. Herein, a multiregion Janus-featured CoP-Co structure obtained via sequential carbonization-oxidation-phosphidation of heteroseed zeolitic imidazolate frameworks is introduced. The structural virtues include a heterostructure existing in a CoP-Co structure and a conductive network of N-doped porous carbon nanotube hollow cages (NCNHCs), endowing it with superior conductivity in both the short- and long-range and strong polarity toward polysulfides. Thus, the S@CoP-Co/NCNHC cathode exhibits superior electrochemical performance (448 mAh g-1 remained for 700 times cycling under 1 A g-1) and an optimized redox mechanism in polysulfides conversion. Density functional theory calculations present that the CoP-Co structure optimizes bond structure and bandwidth, whereas the pure CoP is lower than the corresponding Fermi level, which could essentially benefit the adsorptive capability and charge transfer from the CoP-Co surface to Na2Sx and therefore improve its affinity to polysulfides.
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Affiliation(s)
- Zichao Yan
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Yaru Liang
- Powder Metallurgy Research Institute State Key Laboratory of Powder Metallurgy, Central South University, Lushan South Road, Changsha 410083, P.R. China
| | - Weibo Hua
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen 76344, Germany
| | - Xia-Guang Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, School of Chemistry and Chemical Engineering, Henan Normal University, Henan 453007, P.R. China
| | - Weihong Lai
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Zhe Hu
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Wanlin Wang
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Jian Peng
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Sylvio Indris
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen 76344, Germany
| | - Yunxiao Wang
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Shu-Lei Chou
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Huakun Liu
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Shi-Xue Dou
- Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
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45
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Lim YGJ, Low HYJ, Loo SCJ. Synthesis of Polymeric Janus Superstructures via a Facile Synthesis Method. Macromol Rapid Commun 2020; 41:e2000140. [PMID: 32449578 DOI: 10.1002/marc.202000140] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/21/2020] [Indexed: 12/21/2022]
Abstract
Polymeric Janus particles can be exploited for a myriad of applications. Through the understanding of interfacial tensions, theragnostic agents such as drugs or nanomaterials can be successfully encapsulated into Janus particles without losing their anisotropic structure. In this work, it is reported that how Janus superstructures, as a further extension of the Janus morphology, can be obtained by blending other synthesis parameters into the solvent emulsion process, while adhering to the requirements of the Harkin's spreading coefficient (HSC) theory. Designing such unique structures for drug delivery can provide a broader range of possibilities and applications beyond conventional Janus particles.
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Affiliation(s)
- Yi Guang Jerome Lim
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Hui Ying Jessalyn Low
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Say Chye Joachim Loo
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.,Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore.,Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, 02115, USA
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46
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Yang J, Liu P, He X, Hou J, Feng Y, Huang Z, Yu L, Li L, Tang Z. Photodriven Active Ion Transport Through a Janus Microporous Membrane. Angew Chem Int Ed Engl 2020; 59:6244-6248. [PMID: 31958197 DOI: 10.1002/anie.201916516] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Indexed: 12/20/2022]
Abstract
Precise control of ion transport is a fundamental characteristic for the sustainability of life. It remains a great challenge to develop practical and high-performance artificial ion-transport system that can allow active transport of ions (protons) in an all solid-state nanoporous material. Herein, we develop a Janus microporous membrane by combining reduced graphene oxide (rGO) and conjugated microporous polymer (CMP) for controllable photodriven ion transport. Upon light illumination, a net ionic current is generated from the CMP to the rGO side of the membrane, indicating that the rGO/CMP Janus membrane can realize photodriven directional and anti-gradient ion transport. Analogously to the p-n junction in photovoltaic devices, light is firstly converted into separated charges to trigger a transmembrane potential, which subsequently drives directional ion movement. For the first time, this method enables integration of a photovoltaic effect with an ionic field to drive active ion transport. With the advantages of scaled up production and easy fabrication, the concept of photovoltaic ion transport based on Janus microporous membrane may find wide application in energy storage and conversion, photodriven ion-sieving, and water treatment.
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Affiliation(s)
- Jinlei Yang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Pengchao Liu
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Xiao He
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Junjun Hou
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Yaping Feng
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhiwei Huang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Lian Yu
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Lianshan Li
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Zhiyong Tang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing, 100190, P. R. China
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47
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Song X, Liu C, Liu X, Liu S. Investigating Polymer Transformation during the Encapsulation of Metal Nanoparticles by Polystyrene- b-poly(acrylic acid) in Colloids. ACS Appl Mater Interfaces 2020; 12:3969-3975. [PMID: 31867959 DOI: 10.1021/acsami.9b19264] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The colloidal self-assembly method holds great potential for large-scale synthesis at low expense of energy as compared to methods that assemble molecules by manipulating building blocks one after another. The development of the colloidal method, however, requires careful and intelligent design of the single building blocks as numerous degrees of freedom like isotropic nanoparticles (NPs) generally form highly repetitive, lattice-like structures or random aggregates upon self-assembly because of their identical surfaces throughout. Specifically, it is an interesting direction that if one can precisely control the localization of surface functionalities (i.e., ligands or polymer shells) on the NPs, a plethora of self-assembled structures (e.g., chains, sheets, rings, twisted, and even staircase structures) would be possible. Despite numerous simulations and modeling for this type of NPs, just a handful literature studies reported the controlling synthesis of metal-polymer patchy NPs through polymer shell shrinking/transformation in colloids. However, there are no detailed control experiments showing the mechanism of this polymer shell shrinking or transformation phenomenon. With the absence of a fundamental understanding of the driving forces and interactions between metal NP surface ligands and the hydrophobic polymer shell domain, simple and efficient design and synthesis of unique metal-polymer hybrid nanostructures are still obscure. Here, we report a detailed mechanistic study on the polymer shell transformation by using different types of surface ligands in encapsulation of metal NPs by polymer shells. The polymer shell transformation dynamic is studied after postheating treatment. The polymer shell transformation/shrinking on the metal NP surface depends on its surface ligand size being applied in the encapsulation step (polymer-ligand hydrophobic interaction effect). Longer-chain ligands provide stronger interactions between NPs and the hydrophobic domain of the polymer shell, which inhibits the polymer shell transformation. In contrast, short-chain ligands lead to weaker interactions, which assist in the polymer shell transformation. By understanding the underlying mechanisms, many new types of NPs, such as metal-polymer core-shell NPs, metal-polymer Janus NPs, silica-metal-polymer hybrid NPs, and silica-metal-polymer flower-like NPs have been synthesized for the first time. A new bottom-up platform for the synthesis of anisotropic NPs with the ability to control the patches in a precise manner has been created, which will benefit both nanotechnology (such as self-assembly in the nanoscale) and applications such as selective detection of the underlying ligands on the metal surface by using a surface-enhanced Raman spectrum study.
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Affiliation(s)
- Xiaohui Song
- Department of Material Science and Engineering , University of California at Berkeley , Berkeley , California 94720 , United States
- Department of Chemistry and Biological Chemistry , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Cuicui Liu
- Department of Chemistry and Biological Chemistry , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Xiaotao Liu
- Department of Material Science and Engineering , University of California at Berkeley , Berkeley , California 94720 , United States
| | - Songlin Liu
- Department of Chemistry and Biological Chemistry , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
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48
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Tang Z, Yeo BC, Han SS, Lee TJ, Bhang SH, Kim WS, Yu T. Facile aqueous-phase synthesis of Ag-Cu-Pt-Pd quadrometallic nanoparticles. Nano Converg 2019; 6:38. [PMID: 31788735 PMCID: PMC6885459 DOI: 10.1186/s40580-019-0208-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
Ag-Cu-Pt-Pd quadrometallic nanoparticles which small Pt and Pd nanoparticles were attached on the surface of AgCu Janus nanoparticles were firstly synthesized by sequential reduction of Pt and Pd precursor in the presence of Janus AgCu bimetallic nanoparticles as seeds in an aqueous solution. Even though there was a small amount of Cu2O on the surface, the synthesized nanoparticles were mainly composed of four independent metallic part, not alloy parts. By theoretical calculation and growth mechanism study, we found that different reducing rate between Ag+ and Cu2+ and sequential reduction of Pt and Pd precursors would be key roles for the formation of the quadrometallic nanoparticles.
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Affiliation(s)
- Zengmin Tang
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Byung Chul Yeo
- Center for Computational Science, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Sang Soo Han
- Center for Computational Science, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Tae-Jin Lee
- School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Woo-Sik Kim
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, Yongin, 17104, Republic of Korea.
| | - Taekyung Yu
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, Yongin, 17104, Republic of Korea.
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49
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Gao S, Dong X, Huang J, Dong J, Maggio FD, Wang S, Guo F, Zhu T, Chen Z, Lai Y. Bioinspired Soot-Deposited Janus Fabrics for Sustainable Solar Steam Generation with Salt-Rejection. Glob Chall 2019; 3:1800117. [PMID: 31565392 PMCID: PMC6686278 DOI: 10.1002/gch2.201800117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/26/2019] [Indexed: 05/07/2023]
Abstract
Inspired by lotus leaves, self-floating Janus cotton fabric is successfully fabricated for solar steam generation with salt-rejecting property. The layer-selective soot-deposited fabrics not only act as a solar absorber but also provide the required superhydrophobicity for floating on the water. With a polyester protector, the prepared Janus evaporator exhibits a sustainable evaporation rate of 1.375 kW m-2 h-1 and an efficiency of 86.3% under 1 sun (1 kW m-2) and also performs well under low intensity and inclined radiation. Furthermore, no special apparatus and/or tedious processes are needed for preparing this device. With a cost of less than $1 per m2, this flexible Janus absorber is a promising tool for portable solar vapor generator.
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Affiliation(s)
- Shouwei Gao
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Xiuli Dong
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Jianying Huang
- College of Chemical EngineeringFuzhou UniversityFuzhou350116P. R. China
| | - Jianing Dong
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
| | | | - Shanchi Wang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Fang Guo
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Tianxue Zhu
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Zhong Chen
- School of Materials Science and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Yuekun Lai
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P. R. China
- College of Chemical EngineeringFuzhou UniversityFuzhou350116P. R. China
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50
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Shi Q, Gómez DE, Dong D, Sikdar D, Fu R, Liu Y, Zhao Y, Smilgies DM, Cheng W. 2D Freestanding Janus Gold Nanocrystal Superlattices. Adv Mater 2019; 31:e1900989. [PMID: 31070276 DOI: 10.1002/adma.201900989] [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] [Received: 02/11/2019] [Revised: 04/18/2019] [Indexed: 06/09/2023]
Abstract
2D freestanding nanocrystal superlattices represent a new class of advanced metamaterials in that they can integrate mechanical flexibility with novel optical, electrical, plasmonic, and magnetic properties into one multifunctional system. The freestanding 2D superlattices reported to date are typically constructed from symmetrical constituent building blocks, which have identical structural and functional properties on both sides. Here, a general ligand symmetry-breaking strategy is reported to grow 2D Janus gold nanocrystal superlattice sheets with nanocube morphology on one side yet with nanostar on the opposite side. Such asymmetric metallic structures lead to distinct wetting and optical properties as well as surface-enhanced Raman scattering (SERS) effects. In particular, the SERS enhancement of the nanocube side is about 20-fold of that of the nanostar side, likely due to the combined "hot spot + lightening-rod" effects. This is nearly 700-fold of SERS enhancement as compared with the symmetric nanocube superlattices without Janus structures.
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Affiliation(s)
- Qianqian Shi
- Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, 3800, Victoria, Australia
- The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, 3168, Victoria, Australia
| | | | - Dashen Dong
- Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, 3800, Victoria, Australia
- The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, 3168, Victoria, Australia
| | - Debabrata Sikdar
- Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India
- Imperial College London, MSRH, W12 0BZ, UK
| | - Runfang Fu
- Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, 3800, Victoria, Australia
- The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, 3168, Victoria, Australia
| | - Yiyi Liu
- Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, 3800, Victoria, Australia
- The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, 3168, Victoria, Australia
| | - Yumeng Zhao
- Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, 3800, Victoria, Australia
- The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, 3168, Victoria, Australia
| | - Detlef-M Smilgies
- Cornell High Energy Synchrotron Source (CHESS), Ithaca, NY, 14853, USA
| | - Wenlong Cheng
- Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, 3800, Victoria, Australia
- The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, 3168, Victoria, Australia
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