1
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Tian JJ, Chen YX, Liu ZX, Liu JK. Synthesis and Mechanism of Co 2+/Sr 2+ Codoped Magnetic Lanthanum Cuprate with Excellent Corrosion Resistance. ACS Appl Mater Interfaces 2023; 15:53651-53664. [PMID: 37944056 DOI: 10.1021/acsami.3c09858] [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: 11/12/2023]
Abstract
The special structure of perovskite-like compounds allows the existence of some open spaces in the crystals that play an important role in their crystal function enhancement and can accommodate active oxygen, which helps to solve some problems in the field of corrosion prevention. The magnetic lanthanum cuprate was obtained through the doping of Co2+ and Sr2+, and compared with La2CuO4 and epoxy resin, its corrosion resistance was improved by 215.2 and 566.7%, respectively. The micromagnetic field in the crystal interfered with the state of motion of the electrons and prolonged their transport path. High concentration doping and substitution of unequal states led to the formation of oxygen vacancy defects, which could trap active oxygen molecules and inhibit cathodic corrosion reactions. The unique alternating interlayer structure of perovskite-like compounds was conducive to the release of Cu2+, thus forming a more stable passivator on the surface of the coating. La1.96Sr0.04Cu0.98Co0.02O4 had both magnetic properties and structural advantages, which enhanced the shielding property of epoxy resin and expanded the application of perovskite-like compounds in the field of corrosion prevention.
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Affiliation(s)
- Jing-Jing Tian
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yi-Xiang Chen
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Zi-Xiang Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan Province 643000, P. R. China
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Wang FR, Sheng XX, Zhang M, Miao M, Liu JK, Liu JC, Ma YS, Liu PP. Design and enhanced anticorrosion performance of a Zn 5Mo 2O 11·5H 2O/ h-BN nanocomposite with labyrinth of nanopores. Nanoscale 2023; 15:3199-3211. [PMID: 36723123 DOI: 10.1039/d2nr06846j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Zinc molybdate (ZMO) is a safe and effective grafting material for anticorrosion. Herein, we reported the synthesis of ZMO/h-BN with the labyrinth of capillary pores owing to the in situ growth of ZMO on flake hexagonal boron nitride (h-BN) using the hydrothermal method. The special morphological structure provided a tortuous path for aggressive species to the steel substrate, which extended and blocked the transmission of aggressive species, enhancing the physical corrosion barrier performance. In addition, the capillary pores of ZMO contributed to the competitive adsorption of Cl- in an electrolyte and reduced the diffusion of aggressive species, thus further delaying the corrosion process. Moreover, the capture of oxygen by forming a B-O bond with h-BN and the formation of a molybdate passive film are beneficial for the inhibition of cathodic and anodic reactions. As verified by electrochemical impedance spectroscopy (EIS), the anticorrosion performance of ZMO/h-BN coating increased by 49.58% and 130.72% compared with ZMO and epoxy resin (EP) coatings after immersing in a NaCl aqueous solution (3.50 wt%) for 72 h. This coating matrix provides an avenue for molybdate-based corrosion remediation.
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Affiliation(s)
- Feng-Rui Wang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P.R. China.
| | - Xiao-Xiao Sheng
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P.R. China.
| | - Min Zhang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P.R. China.
| | - Min Miao
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P.R. China.
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P.R. China.
| | - Ji-Chang Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Yun-Sheng Ma
- Shandong Chambroad Holding Group Co., Ltd., Shandong Province, 256500, P.R. China.
| | - Peng-Peng Liu
- Shandong Chambroad Holding Group Co., Ltd., Shandong Province, 256500, P.R. China.
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3
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Zhao SR, Liu ZX, Liu JK, Liu J, Luan B, Ma YS, Liu PP. Enhanced Weathering and Corrosion Resistance of Eu-Doped ZnO Solid Solution Material by Fluorescence Modification. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Si-Rui Zhao
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, P.R. China
| | - Zi-Xiang Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, P.R. China
| | - Jin-Ku Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, P.R. China
| | - Jichang Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, P.R. China
| | - Bo Luan
- Shandong Chambroad Holding Group Co., Ltd., Binzhou, Shandong Province256500, P.R. China
| | - Yun-Sheng Ma
- Shandong Chambroad Holding Group Co., Ltd., Binzhou, Shandong Province256500, P.R. China
| | - Peng-Peng Liu
- Shandong Chambroad Holding Group Co., Ltd., Binzhou, Shandong Province256500, P.R. China
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4
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Chen YM, Liu JK. Circularly distributed multipliers with deterministic moduli assessing the stability of quasiperiodic response. Phys Rev E 2023; 107:014218. [PMID: 36797899 DOI: 10.1103/physreve.107.014218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 01/05/2023] [Indexed: 01/31/2023]
Abstract
The stability and bifurcation of a periodic solution of a dynamical system can be handled well by using the Floquet multipliers of the perturbed system with periodic coefficients. However, for a quasiperiodic (QP) response as a natural extension of a periodic one, it is much more difficult to do it quantitatively. Therefore, proposed here is an approach for defining and obtaining effective multipliers for QP stability. The proposed approach is based on a series of auxiliary variables via which the perturbed system with QP coefficients is transformed approximately into a constant one, whereupon the multipliers are obtained efficiently by performing eigenvalue analysis on the constant coefficient matrix. The major finding involves circularly distributed multipliers with deterministic moduli, with the QP response being stable if all the moduli are less than or equal to unity; otherwise it is unstable. When the QP response degenerates to periodic due to the reducibility of fundamental frequencies, the proposed approach exactly provides the Floquet multipliers for the periodic solution. From this respect, the obtained multipliers can be considered to some extent as being a generalization for QP response of the Floquet multipliers for a periodic solution.
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Affiliation(s)
- Y M Chen
- Department of Mechanics, Sun Yat-sen University, 135 Xingang Road, Guangzhou 510275, China
| | - J K Liu
- Department of Mechanics, Sun Yat-sen University, 135 Xingang Road, Guangzhou 510275, China
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5
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Zhang XP, Xia JW, Liu JK, Zhao D, Kong LG, Zhu XP. First Report of Fusarium pernambucanum Causing Fruit Rot of Muskmelon in China. Plant Dis 2022; 106:PDIS07211520PDN. [PMID: 34818917 DOI: 10.1094/pdis-07-21-1520-pdn] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- X P Zhang
- College of Plant Protection, Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - J W Xia
- College of Plant Protection, Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - J K Liu
- Chiping Plant Protecting Station, Liaocheng, Shandong, 252100, China
| | - D Zhao
- College of Plant Protection, Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - L G Kong
- College of Plant Protection, Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - X P Zhu
- College of Plant Protection, Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, Shandong Agricultural University, Taian, Shandong, 271018, China
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6
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Zhou D, Chen YX, Yuan XY, Chai ZL, Liu JK. Gradient Design of Vacancies and Their Positive Correlation with Electrochemical Anticorrosion Protection. Inorg Chem 2022; 61:8053-8065. [PMID: 35546124 DOI: 10.1021/acs.inorgchem.2c00903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The contribution of defects to electrochemistry is a controversial but practically applicable subject. Meanwhile, it is challenging to obtain precisely a certain nonchemometric single phase in mixed-valence compounds. The precise design of nonchemometric single-phase WO3-x (x = 0, 0.1, 0.28, and 1) mixed-valence metal oxides (MVMOs) was achieved by the gradient intrinsic reduction method, and the correlation between oxygen vacancies and electrochemical anticorrosion protection was explored systematically. Then, the decisive role of periodic oxygen vacancies in electrochemical anticorrosion was confirmed. And the origin was the synergistic reaction of oxygen vacancy-upgraded photocathodic protection, vacancy-induced passivation, and mixed-valence reductive protection, which were brought about by the high oxygen vacancy concentration. Integrating the above three aspects, the WO2.72 MVMO showed the best electrochemical anticorrosion performance by increasing the resistance value to 7.67 times that of the epoxy resin coating. The establishment of a positive correlation between oxygen vacancy and corrosion protection in WO3-x (x = 0, 0.1, 0.28, and 1) materials can not only guide the design of MVMOs but also make an important contribution to the rapid precorrosion performance of the materials.
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Affiliation(s)
- Dan Zhou
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yi-Xiang Chen
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xiao-Yu Yuan
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, Sichuan, P. R. China
| | - Zhuang-Lei Chai
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, Sichuan, P. R. China
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7
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Yang X, Guo XJ, Zhou D, Liu JK. High Anticorrosion Properties due to Electron Spin Polarization of Hydroxyapatite with Point Defects. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c05023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiu Yang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Xiao-Jiao Guo
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Dan Zhou
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan 643000, P.R. China
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8
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Yang X, Guo XJ, Chen YX, Chai ZL, Sheng XX, Liu JK, Zeng XG, Chen XD. Preparation and electrochemical inhibition properties of Ce 3+-photomodified zinc phosphate materials. NEW J CHEM 2022. [DOI: 10.1039/d1nj05778b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exploration of the strong luminescent properties of cerium-modified zinc phosphate for corrosion protection applications.
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Affiliation(s)
- Xiu Yang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P. R. China
| | - Xiao-Jiao Guo
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P. R. China
| | - Yi-Xiang Chen
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P. R. China
| | - Zhuang-Lei Chai
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P. R. China
| | - Xiao-Xiao Sheng
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P. R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai, 200237, P. R. China
- Material Corrosion and Protection Key Laboratory of Sichuan province, Sichuan University of Science and Engineering, Zigong, 643000, P. R. China
| | - Xian-Guang Zeng
- Material Corrosion and Protection Key Laboratory of Sichuan province, Sichuan University of Science and Engineering, Zigong, 643000, P. R. China
| | - Xue-Dan Chen
- Material Corrosion and Protection Key Laboratory of Sichuan province, Sichuan University of Science and Engineering, Zigong, 643000, P. R. China
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9
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Zhao SR, Yuan XY, Chen YX, Lu Y, Zhang M, Liu JK. Enhancing Corrosion Inhibition Performance of ZnO Solid Solution by Doping Variable-Valence Rare-Earth Element Cerium. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c04162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Si-Rui Zhao
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xiao-Yu Yuan
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yi-Xiang Chen
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yi Lu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P. R. China
| | - Min Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jin-Ku Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P. R. China
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10
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Guo XJ, Yang X, Yuan XY, Zhou D, Lu Y, Liu JK. Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO 2.92 Heterojunction for Enhanced Corrosion Resistance. Inorg Chem 2021; 60:15390-15403. [PMID: 34592815 DOI: 10.1021/acs.inorgchem.1c02035] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The heterojunction constructed by tungsten oxide and zinc oxide materials can improve the problem of easy deactivation of electrons, which is a new and effective strategy for realizing anticorrosion. Here, the ZnO/WO2.92 heterojunction modified by oxygen vacancies (OVs) serving as the photoelectric conversion center was not consumed to provide continuous light-induced protection for steel, and the impedance value was increased by 185.35% compared to that of epoxy resin after 72 h of corrosion. The enhanced anticorrosion activity was due to OV modification leading to oxygen adsorption and electron capture, which inhibited the cathodic corrosion reaction and effectively hindered electron transport. Additionally, the localized surface plasmon resonance effect produced by OVs improved light utilization efficiency and increased electron density, which enabled numerous photoelectrons to gather on the surface of the iron substrate to reduce the corrosion rate of metals. Besides, the cascade effect of the ZnO/WO2.92 heterojunction promoted the transfer of e-/h+ to form an electric field that allowed the directional flow of electrons to inhibit the anode dissolution process. Thus, exploring the corrosion reaction involving OVs and heterojunction structures was of great significance to the development of nonsacrificial and efficient anticorrosion materials.
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Affiliation(s)
- Xiao-Jiao Guo
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Xiu Yang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Xiao-Yu Yuan
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Dan Zhou
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Yi Lu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
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11
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Chen YX, Zhou D, Yang X, Guo XJ, Zhang JY, Liu JK. Enhancing Anticorrosion Properties of Micro–Nano Zinc Vanadate from Atomic Modulation Supplemented by Light Modification. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi-Xiang Chen
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Dan Zhou
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Xiu Yang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Xiao-Jiao Guo
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Jing-Yu Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Material Corrosion and Protection, Key Laboratory of Sichuan Province, Zigong, Sichuan 643000, P. R. China
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12
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Zhou D, Chen YX, Yuan XY, Lu Y, Zhang M, Liu JK. Self-induced synthesis under neutral conditions and novel visible light photocatalytic activity of Ag 4V 2O 7 polyoxometalate. NEW J CHEM 2021. [DOI: 10.1039/d1nj01390d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag4V2O7 POM with a nanorod-bundle structure was designed under neutral conditions, which showed good visible photodegradation performance against chloramphenicol.
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Affiliation(s)
- Dan Zhou
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yi-Xiang Chen
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xiao-Yu Yuan
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yi Lu
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Min Zhang
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jin-Ku Liu
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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13
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Xiong Z, Fu L, Zhou H, Liu JK, Wang AM, Huang Y, Huang X, Yi B, Wu J, Li CH, Quan J, Li M, Leng YS, Luo WJ, Hu CP, Liao WH. [Construction and evaluation of a novel diagnosis pathway for 2019-Corona Virus Disease]. Zhonghua Yi Xue Za Zhi 2020; 100:1223-1229. [PMID: 32157849 DOI: 10.3760/cma.j.cn112137-20200228-00499] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To construct and evaluate a diagnosis pathway (Xiangya pathway) for Corona Virus Disease 2019 (COVID-19). Methods: Consecutive subjects aged ≥12 years old who were screened for COVID-19 were included in Xiangya Hospital of Central South University from January 23 to February 3, 2020, and the subjects were further divided into the inception cohort and the validation cohort. The gender, age, onset time of disease of the subjects were recorded. The information of epidemiological history, fever, and the declined blood lymphocytes were collected as clinical indicators, CT scan was used to evaluate the possibility of COVID-19 and range of lung involvement. According to the current Chinese national standards, throat swabs of suspected cases were collected and the nucleic acid of COVID-19 was detected by reverse transcription-polymerase chain reaction (RT-PCR). The Xiangya pathway was constructed with multi-indexes, compared with clinical indicators, CT results and Chinese national standards, their effectiveness of detecting confirmed cases were verified in the inception and validation cohort. Results: A total of 382 consecutive adults who was screened for COVID-19 were included, and 261 cases were in the inception cohort and 121 cases were in the validation cohort. Among the 382 cases, 192 were males (50.3%) and 190 were females (49.7%), with a median age of 35 years (range: 15-92 years). There were 183 cases (47.9%) with epidemiological history, 275 cases (72.0%) with fever, 212 cases (55.5%) with decreased peripheral blood lymphocytes, 114 cases (29.8%) with positive CT findings, 43 cases (11.3%) with positive CT-COVID-19, and 30 cases (7.9%) with positive virus nucleic acid by throat swab. Compared with clinical indicators, the sensitivity and specificity of CT were 0.950 and 0.704, respectively. The accuracy of CT to make a definite diagnosis was higher than that of epidemiological history, fever, and declined blood lymphocyte count (0.809 vs 0.660, 0.532, 0.596, P=0.001, 0.002, 0.003, respectively). The sensitivity of this pathway and the pathway recommended by the Health Commission of China were both high (all were 1.000), while the specificity and accuracy of the Xiangya pathway were higher than the one recommended by the Health Commission (0.872 vs 0.765, 0.778 vs 0.592, both P<0.001). The CT-COVID-19 reduced the missed diagnosis rate caused by false negative of nucleic acid test (31 vs 64), with difference rate of 51.6%, and the positive rate of nucleic acid test was 64.5% (20/31). In validation cohort, the specificity and accuracy of the Xiangya pathway was 0.967, the positive rate of nucleic acid test was 76.9%(10/13). Conclusions: The Xiangya pathway can predict the nucleic acid test results of COVID-19, and can be applied as a reliable strategy to screen patients with suspected COVID-19 among people aged ≥12 years in areas other than Hubei during the epidemic period of COVID-19. The cohort size needs to be increased for further validation.
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Affiliation(s)
- Z Xiong
- Department of Radiology, Xiangya Hospital of Central South University, Changsha 410008, China
| | - L Fu
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
| | - H Zhou
- Department of Radiology, Xiangya Hospital of Central South University, Changsha 410008, China
| | - J K Liu
- Department of Radiology, Xiangya Hospital of Central South University, Changsha 410008, China
| | - A M Wang
- Department of Emergency, Xiangya Hospital of Central South University, Changsha 410008, China
| | - Y Huang
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
| | - X Huang
- Department of Infection Control Center, Xiangya Hospital of Central South University, Changsha 410008, China
| | - B Yi
- Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha 410008, China
| | - J Wu
- Department of Medical Section, Xiangya Hospital of Central South University, Changsha 410008, China
| | - C H Li
- Department of Infection Control Center, Xiangya Hospital of Central South University, Changsha 410008, China
| | - J Quan
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
| | - M Li
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital of Central South University, Changsha 410008, China
| | - Y S Leng
- Department of Radiology, Xiangya Hospital of Central South University, Changsha 410008, China
| | - W J Luo
- Department of Radiology, Xiangya Hospital of Central South University, Changsha 410008, China
| | - C P Hu
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital of Central South University, Changsha 410008, China
| | - W H Liao
- Department of Radiology, Xiangya Hospital of Central South University, Changsha 410008, China
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14
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Liu XR, Miao M, Zhang JY, Liu JK, Zhang XM, Wang XG. Surface coordination and excellent anticorrosion performance of strontiumapatite nanocomposite. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.08.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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15
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Zhang JY, Zhou D, Sun YS, Lu Y, Liu JK. Anticorrosion Performance and Application of a Mixed-Valence Mn 0xMn 2+0.05–xZn 0.95O Solid Solution Induced by Magnetic Doping. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05229] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing-Yu Zhang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Dan Zhou
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Yi-Shuo Sun
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Yi Lu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
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16
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Zhou D, Wang YY, Wang FR, Liu JK, Zhang XM. Design and Application of Ag3PO4@Ag4V2O7 Z-Scheme Photocatalysts with a Micro-Nano Tube-Cluster Structure for the Co-Degradation of Nitrate and Ammonia in Wastewater. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03623] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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17
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Xue YN, Sun YS, Liu JK, Wang YY, Wang XG, Yang XH. Construction, enhanced visible-light photocatalytic activity and application of multiple complementary Ag dots decorated onto Ag2MoO4/AZO hybrid nanocomposite. Res Chem Intermed 2018. [DOI: 10.1007/s11164-018-3649-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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18
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Huang TT, Cheng KH, Chang CJ, Chen KC, Liu JK, Wong TY. Transoral vertical ramus osteotomy fixed with Kirschner pins. Br J Oral Maxillofac Surg 2018; 56:841-846. [PMID: 30293802 DOI: 10.1016/j.bjoms.2018.09.007] [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: 06/06/2018] [Accepted: 09/13/2018] [Indexed: 11/18/2022]
Abstract
Transoral vertical ramus osteotomy (VRO) has been condemned because the condyle has the potential to sag, and because it needs lengthy maxillomandibular fixation. We have therefore introduced a simple method of fixation, and examined its effectiveness and complications. After the osteotomy, the proximal and distal segments are trimmed to adapt to each other. Four Kirschner (K) pins 0.9mm in diameter are inserted percutaneously from the proximal to the distal segment while the condyle is positioned in the glenoid fossa. This is followed by a brief period of maxillomandibular fixation. We have reviewed the records of 95 patients who had unilateral or bilateral vertical ramus osteotomy fixed with K pins, after which the mean (SD) period of fixation was 19 (11) days. Fixation failed in two patients because excursion of the jaw was either too heavy or too early. The fixations were redone. All other fixations remained stable, including the 20 dual-jaw procedures in which VRO preceded maxillary osteotomy. The mean (SD) maximal mouth opening at final follow-up was 44 (7) mm, and in only one patient was it less than 30mm. Numbness of the lip or chin developed in seven patients, five of whom had other anterior mandibular procedures. Four patients had discomfort on palpation of the site of the pins, and one required removal. The new method was effective, and resulted in few complications within its limitations.
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Affiliation(s)
- T T Huang
- Division of Oral and Maxillofacial Surgery, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - K H Cheng
- Division of Oral and Maxillofacial Surgery, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - C J Chang
- Division of Orthodontics, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - K C Chen
- Division of Oral and Maxillofacial Surgery, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - J K Liu
- Division of Orthodontics, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - T Y Wong
- Division of Oral and Maxillofacial Surgery, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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19
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Xue XZ, Shen J, Zhang JY, Liu JK, Wang XG, Zhu ZC. Enhanced Anticorrosion Performance and Mass Preparation of Magnetic Metal-Doped Zinc Oxide Nano Solid Solutions. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02217] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xi-Zi Xue
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, P.R. China
| | - Juan Shen
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Jing-Yu Zhang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, P.R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, P.R. China
| | - Xiao-Gang Wang
- Department of Chemistry, Tongji University, Shanghai 200092, P.R. China
| | - Zi-Chun Zhu
- Department of Chemistry, Chizhou University, Chizhou 247000, P.R. China
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20
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Bai L, Li WW, Han HH, Liu JK, Fu P, Zhang XL, Guo YC. [Surveillance of contamination level and antimicrobial resistance analysis of Salmonella on broiler carcasses after chilling in 4 poultry slaughterhouses of Henan Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:124-128. [PMID: 29429264 DOI: 10.3760/cma.j.issn.0253-9624.2018.02.002] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Tests were carried out for obtaining contamination level and antimicrobial resistance of Salmonella on broiler carcasses after chilling in four poultry slaughterhouses in Henan. Methods: Totally, two hundred sixty nine broiler carcasses after chilling were collected in four slaughterhouses with the daily slaughter amount around 15 000 to 50 000. For qualitative analysis of Salmonella EFSA method was used and for quantitative analysis of Salmonella modified Rappaport-Vassiliadis most probable number (MSRV-MPN) method was used. All of the isolates were subjected to antimicrobial susceptibility testing of 8 antibiotics by minimum inhibitory concentration (MIC). Results: Overall, 48.7% (131/269) of the broiler carcasses after chilling were contaminated by Salmonella, and the average of contamination level is 1.32 most probable number MPN/g. Eight serotypes were detected. The dominant serotype is Salmonella enteritidis (93, 71.0%) followed by Salmonella Indiana (21, 16.0%). Only 2 (1.5%) Salmonella enteritidis strains were sensitive to all the tested antibiotics and the remaining 129 isolates were resistant to at least one kind of eight class antibiotics. Among them, resistant to NAL was the common (104, 79.4%) and 51 (38.9%) Salmonella isolates were multidrug-resistant. Conclusion: The contamination rate and multiple antimicrobial resistant of Salmonella on broiler carcasses after chilling from slaughterhouses was very serious, while the isolates contained various serotypes.
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Affiliation(s)
- L Bai
- Key Laboratory of Food Safety Risk Assessment of Health, China National Center for Food Safety Risk Assessment, Beijing 100021, China
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21
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22
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Xue YN, Zhang JY, Tang S, Liu JK, Yue YB, Yang XH. Rapid degradation of unmanageable polycyclic aromatic hydrocarbons by a C-ZnO solid solution nanocatalyst. NEW J CHEM 2018. [DOI: 10.1039/c7nj04855f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Unmanageable polycyclic aromatic hydrocarbons (PAHs) were rapidly degraded by a C atom-doped ZnO solid solution (C-ZnO SS) nanocatalyst due to the sucker effect.
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Affiliation(s)
- Ya-Nan Xue
- Key Laboratory for Advanced Materials
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai, 200237
- P. R. China
| | - Jing-Yu Zhang
- Key Laboratory for Advanced Materials
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai, 200237
- P. R. China
| | - Sheng Tang
- Shanghai Institute of Space Power-Sources
- Shanghai 200245
- P. R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai, 200237
- P. R. China
| | - Yun-Bo Yue
- Shanghai Institute of Space Power-Sources
- Shanghai 200245
- P. R. China
| | - Xiao-Hong Yang
- Department of Chemistry
- Chizhou University
- Chizhou, 247000
- P. R. China
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23
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Lin JL, Lin WC, Liu JK, Surampalli RY, Zhang TC, Kao CM. Aerobic Biodegradation of OCDD by P. Mendocina NSYSU: Effectiveness and Gene Inducement Studies. Water Environ Res 2017; 89:2113-2121. [PMID: 29166993 DOI: 10.2175/106143017x15054988926415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The goals of this study were to assess the effectiveness of (1) enhancing octachlorinated dibenzo-p-dioxin (OCDD) biodegradation under aerobic conditions by Pseudomonas mendocina NSYSU (P. Mendocina NSYSU) with the addition of lecithin, and (2) inducing OCDD ring-cleavage genes by pentachlorophenol (PCP) and OCDD addition. P. Mendocina NSYSU could biodegrade OCDD via aerobic cometabolism and lecithin was used as a primary substrate. Approximately 74 and 67% of OCDD biodegradation was observed after 60 days of incubation with lecithin and glucose supplement, respectively. Lecithin was also used as the solubilization additive resulting in OCDD solubilization and enhanced bioavailability of OCDD to P. Mendocina NSYSU. Two intradiol and extradiol ring-cleavage dioxygenase genes (Pmen_0474 and Pmen_2526) were identified from gene analyses. Gene concentration was significantly enhanced after the inducement by PCP and OCDD. Higher gene inducement efficiency was obtained using PCP as the inducer, and Pmen_2526 played a more important role in OCDD biodegradation.
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24
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Huang K, Chen G, Li Y, Liu JK, Wang ZY, Zhou GC. [Expression of PAK1 in bladder cancer and its influence on invasion of bladder cancer cells]. Zhonghua Yi Xue Za Zhi 2017; 96:3227-3231. [PMID: 27852389 DOI: 10.3760/cma.j.issn.0376-2491.2016.40.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of p21-activated kinase 1 (PAK1) in bladder cancer and its biological influence on invasion ability of bladder cancer cells. Methods: A total of 54 paraffin-embedded bladder cancer tissue samples and 12 normal bladder tissue specimens were retrieved in Jinshan Hospital Affiliated to Fudan University between January 2009 and December 2012. The expression of PAK1 in these tissues was detected by immunohistochemical staining. The PAK1 mRNA and protein levels were measured in bladder cancer cell lines and human normal bladder epithelial cell line using real-time, fluorescence-based quantitative polymerase chain reaction (RT-PCR) and Western blot, respectively. A stable PAK1 gene silencing bladder cancer cell strain 5637 were successfully constructed. After treatment with PAK1 RNA interference(RNAi), the ability of migration and invasion of the 5637 cell was evaluated using a Transwell system. Results: The expression of PAK1 proteins was significantly higher in bladder cancer tissues than in normal bladder tissues (28/54 vs 1/12, P<0.05). The overexpression of PAK1 was positively correlated with high histological grade, lymph node metastasis, and tumor size (all P<0.05). The mRNA level and protein level of PAK1 was much higher in bladder cancer cell lines T24, 5637 than human normal urothelial cell line SV-HUC-1.PCR and Western blot showed satisfactory inhibitory effect of PAK1 short hairpin RNA (shRNA) on PAK1 expression in 5637 bladder cancer cells. The number of PAK1 RNAi-treated 5637 cells traversed the membrane was decreased compared with the control group in migration and invasion assays. Conclusions: Overexpression of PAK1 in bladder cancer tissues may be an important feature of bladder cancer and related with the metastasis and invasion of bladder cancer. The molecular mechanisms involved in regulation of PAK1 expression needs further research.
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Affiliation(s)
- K Huang
- Department of Urology, Clinical Medical College of Yangzhou University, Yangzhou 225001, China
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25
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Affiliation(s)
- Jing-Yu Zhang
- Key Laboratory for
Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Material Corrosion and Protection, Key Laboratory of Sichuan Province, Sichuan 643000, P. R. China
| | - Xi-Zi Xue
- Key Laboratory for
Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Material Corrosion and Protection, Key Laboratory of Sichuan Province, Sichuan 643000, P. R. China
| | - Jin-Ku Liu
- Key Laboratory for
Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Material Corrosion and Protection, Key Laboratory of Sichuan Province, Sichuan 643000, P. R. China
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26
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Affiliation(s)
- Yu-Yang Bai
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Feng-Rui Wang
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
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27
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Wang JD, Wang FR, Liu JK, Yang XH, Zhong XH. Controlled synthesis and characterizations of thermo-stabilized Ag3PO4 crystals. Res Chem Intermed 2016. [DOI: 10.1007/s11164-016-2596-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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28
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Bai YY, Lu Y, Liu JK. An efficient photocatalyst for degradation of various organic dyes: Ag@Ag2MoO4-AgBr composite. J Hazard Mater 2016; 307:26-35. [PMID: 26775100 DOI: 10.1016/j.jhazmat.2015.12.052] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 12/15/2015] [Accepted: 12/26/2015] [Indexed: 05/16/2023]
Abstract
The Ag2MoO4-AgBr composite was prepared by a facile in-situ anion-exchange method, then the Ag nanoparticles were coated on this composite through photodeposition route to form a novel Ag@Ag2MoO4-AgBr composite. The in-situ Br(-) replacement in a crystal lattice node position of Ag2MoO4 crystal allows for overcoming the resistance of electron transition effectively. Meanwhile silver nano-particles on the surface of Ag@Ag2MoO4-AgBr composite could act as electron traps to intensify the photogeneration electron-hole separation and the subsequent transfer of the trapped electron to the adsorbed O2 as an electron acceptor. As an efficient visible light catalyst, the Ag@Ag2MoO4-AgBr composite exhibited superior photocatalytic activity for the degradation of various organic dyes. The experimental results demonstrated superior photocatalytic rate of Ag@Ag2MoO4-AgBr composite compared to pure AgBr and Ag2MoO4 crystals (37.6% and 348.4% enhancement respectively). The Ag@Ag2MoO4-AgBr composite cloud degraded Rhodamin B, bromophenol blue, and amino black 10b completed in 7min.
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Affiliation(s)
- Yu-Yang Bai
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yi Lu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China.
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29
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Abstract
Dual technique design in this research has successfully enriched the complementation between doping and surface modification. Here, Co(2+) doped Ag-ZnO nanocomposites (CAZ NCs) are mass produced by the combustion method. The HRTEM image shows that the doped Co(2+) and the surface modified Ag nanoparticles on the ZnO NCs are influential on the preferential orientation. Based on the conductivity formula σ = nqμ and the actual verification, the improved photoelectric properties of CAZ NCs under visible light irradiation are attributed to the enhanced light absorption and the weakened recombination of photogenerated electron-hole pairs. It would be instructive for the sound design concept of subsequent material development.
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Affiliation(s)
- Feng-Rui Wang
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai, 200237, P. R. China.
| | - Yu-Yun Su
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai, 200237, P. R. China.
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai, 200237, P. R. China.
| | - Ying Wu
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, P. R. China
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30
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Wang FR, Luo CX, Zhang XY, Liu JK, Yang XH. Mass-production route and application of ZnO nanocrystals modified with various elements (Li, Al, N, and P). Res Chem Intermed 2016. [DOI: 10.1007/s11164-016-2455-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Abstract
The research focused on mosaic style AgBr–Ag2MoO4 composite materials prepared by in situ composite method. The catalytic efficiency enhanced 149 times compared to pure Ag2MoO4. The success of instant catalysis owed to the mosaic structure effect.
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Affiliation(s)
- Jing-Yu Zhang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yi Lu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jin-Ku Liu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Hao Jiang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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32
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Hu J, Zhai SL, Zeng SY, Sun BB, Deng SF, Chen HL, Zheng Y, Wang HX, Li XP, Liu JK, Cheng S, Zhou X, Zhai JQ, Luo ML. Identification of natural recombinants derived from PCV2a and PCV2b. Genet Mol Res 2015; 14:11780-90. [PMID: 26436503 DOI: 10.4238/2015.october.2.12] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Porcine circovirus type 2 (PCV2) is considered to be the main pathogen in PC-associated diseases, and significantly affects the global pig-producing industry. PCV2 continuously evolves by point mutations and genome recombinations. In the present study, we aimed to further identify recombinant PCV2 strains. We used polymerase chain reaction to detect PCV2 in the carcasses of pigs with suspected infections from different regions of Guangdong Province in China. DNA was extracted from samples with confirmed infection and full- genome amplification, sequencing, phylogenetic tree construction, gene recombination detection, and sequence alignment were performed in gene recombination analysis. Our results show that recombination occurred between the strains SHC (DQ104421) and ZhuJi2003 (AY579893). The recombination resulted in three recombinants: GD003 (KM503044), GD005 (KM487708), and GD008 (KM487709). Further analyses revealed that these novel recombinants appeared to result from recombination between the PCV2a and PCV2b strains, with crossover regions located in ORF2. This study was a comprehensive analysis that used several different methods, which demonstrated that a cluster of PCV2 strains resulted from the same type of inter-genotypic recombination pattern, with a breakpoint in the structural protein coding region. The results of our study provide both information on the recombination mechanism and disease pathogenesis and useful data for the prevention of PCV2 in the swine industry.
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Affiliation(s)
- J Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - S L Zhai
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - S Y Zeng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - B B Sun
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - S F Deng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - H L Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Y Zheng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - H X Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - X P Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - J K Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - S Cheng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - X Zhou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - J Q Zhai
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - M L Luo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
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Zhang XY, Deng YJ, Liu JK, Lu Y, Yang XH. Mass preparation and novel visible light photocatalytic activity of C and Ag Co-modified ZnO nanocrystals. J Colloid Interface Sci 2015; 459:1-9. [PMID: 26254866 DOI: 10.1016/j.jcis.2015.07.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 06/16/2015] [Revised: 07/25/2015] [Accepted: 07/29/2015] [Indexed: 11/17/2022]
Abstract
A combustion method was developed to synthesize the C and Ag co-modified ZnO NCs to enhance its photocatalytic efficiency and practicability. The results showed that the doped Ag was significant to promote the photocatalytic activity, and the optimum content was 2% molar ratio of Ag to Zn atom. The degradation rate under visible light increased by 150% compared with C-ZnO NCs, while by more 1233.3% than pure ZnO photocatalyst. There were some new little particles with grain size about 10 nm on the C-ZnO NCs surface, which may state for the existence of Ag atoms. The synergy effect of Ag and carbon elements was proposed to explain the mechanism of enhanced photocatalytic performance under visible light irradiation.
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Affiliation(s)
- Xiao-Yan Zhang
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Ya-Juan Deng
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Yi Lu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Xiao-Hong Yang
- Department of Chemistry, Chizhou University, Chizhou 247000, PR China.
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34
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Zhang XY, Liu JK, Wang JD, Yang XH. Mass Production, Enhanced Visible Light Photocatalytic Efficiency, and Application of Modified ZnO Nanocrystals by Carbon Dots. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504444w] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xiao-Yan Zhang
- Key
Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jin-Ku Liu
- Key
Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jian-Dong Wang
- Key
Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xiao-Hong Yang
- Department
of Chemistry, Chizhou University, Chizhou 247000, P. R. China
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35
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Zhang XY, Wang JD, Liu JK, Yang XH, Lu Y. Construction of silver tungstate multilevel sphere clusters by controlling the energy distribution on the crystal surface. CrystEngComm 2015. [DOI: 10.1039/c4ce02089h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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36
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Jiang H, Liu JK, Wang JD, Lu Y, Yang XH. Thermal perturbation nucleation and growth of silver molybdate nanoclusters by a dynamic template route. CrystEngComm 2015. [DOI: 10.1039/c5ce00039d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Tu YT, Liu JK, Lin WC, Lin JL, Kao CM. Enhanced anaerobic biodegradation of OCDD-contaminated soils by Pseudomonas mendocina NSYSU: microcosm, pilot-scale, and gene studies. J Hazard Mater 2014; 278:433-443. [PMID: 24997259 DOI: 10.1016/j.jhazmat.2014.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 06/10/2014] [Accepted: 06/11/2014] [Indexed: 06/03/2023]
Abstract
In this study, microcosm and pilot-scale experiments were performed to investigate the capability and effectiveness of Pseudomonas mendocina NSYSU (P. mendocina NSYSU) on the bioremediation of octachlorodibenzo-p-dioxin (OCDD)-contaminated soils. The objectives were to evaluate the (1) characteristics of P. mendocina NSYSU, (2) feasibility of enhancing OCDD biodegradation with the addition of P. mendocina NSYSU and lecithin, and (3) variation in microbial diversity and genes responsible for the dechlorination of OCDD. P. mendocina NSYSU was inhibited when salinity was higher than 7%, and it could biodegrade OCDD under reductive dechlorinating conditions. Lecithin could serve as the solubilization agent causing the enhanced solubilization and dechlorination of OCDD. Up to 71 and 62% of OCDD could be degraded after 65 days of incubation under anaerobic conditions with and without the addition of lecithin, respectively. Decreased OCDD concentrations caused significant increase in microbial diversity. Results from the pilot-scale study show that up to 75% of OCDD could be degraded after a 2.5-month operational period with lecithin addition. Results from the gene analyses show that two genes encoding the extradiol/intradiol ring-cleavage dioxygenase and five genes encoding the hydrolase in P. mendocina NSYSU were identified and played important roles in OCDD degradation.
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Affiliation(s)
- Y T Tu
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - J K Liu
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - W C Lin
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - J L Lin
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - C M Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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38
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Zhang Q, Liu JK, Wang JD, Luo HX, Lu Y, Yang XH. Atmospheric Self-induction Synthesis and Enhanced Visible Light Photocatalytic Performance of Fe3+ Doped Ag-ZnO Mesocrystals. Ind Eng Chem Res 2014. [DOI: 10.1021/ie502011h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Qi Zhang
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 P.R. China
| | - Jin-Ku Liu
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 P.R. China
| | - Jian-Dong Wang
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 P.R. China
| | - Hong-Xi Luo
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 P.R. China
| | - Yi Lu
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 P.R. China
| | - Xiao-Hong Yang
- Department of Chemistry, Chizhou University, Chizhou, 247000 P.R. China
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Liu JK, Lubelski D, Schonberg DL, Wu Q, Hale JS, Flavahan WA, Mulkearns-Hubert EE, Man J, Hjelmeland AB, Yu J, Lathia JD, Rich JN. Phage display discovery of novel molecular targets in glioblastoma-initiating cells. Cell Death Differ 2014; 21:1325-39. [PMID: 24832468 DOI: 10.1038/cdd.2014.65] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/06/2014] [Accepted: 03/20/2014] [Indexed: 12/19/2022] Open
Abstract
Glioblastoma is the most common primary intrinsic brain tumor and remains incurable despite maximal therapy. Glioblastomas display cellular hierarchies with self-renewing glioma-initiating cells (GICs) at the apex. To discover new GIC targets, we used in vivo delivery of phage display technology to screen for molecules selectively binding GICs that may be amenable for targeting. Phage display leverages large, diverse peptide libraries to identify interactions with molecules in their native conformation. We delivered a bacteriophage peptide library intravenously to a glioblastoma xenograft in vivo then derived GICs. Phage peptides bound to GICs were analyzed for their corresponding proteins and ranked based on prognostic value, identifying VAV3, a Rho guanine exchange factor involved tumor invasion, and CD97 (cluster of differentiation marker 97), an adhesion G-protein-coupled-receptor upstream of Rho, as potentially enriched in GICs. We confirmed that both VAV3 and CD97 were preferentially expressed by tumor cells expressing GIC markers. VAV3 expression correlated with increased activity of its downstream mediator, Rac1 (ras-related C3 botulinum toxin substrate 1), in GICs. Furthermore, targeting VAV3 by ribonucleic acid interference decreased GIC growth, migration, invasion and in vivo tumorigenesis. As CD97 is a cell surface protein, CD97 selection enriched for sphere formation, a surrogate of self-renewal. In silico analysis demonstrated VAV3 and CD97 are highly expressed in tumors and inform poor survival and tumor grade, and more common with epidermal growth factor receptor mutations. Finally, a VAV3 peptide sequence identified on phage display specifically internalized into GICs. These results show a novel screening method for identifying oncogenic pathways preferentially activated within the tumor hierarchy, offering a new strategy for developing glioblastoma therapies.
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Affiliation(s)
- J K Liu
- 1] Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA [2] Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - D Lubelski
- 1] Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA [2] Department of Molecular Medicine, Cleveland Clinic, Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - D L Schonberg
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Q Wu
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - J S Hale
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - W A Flavahan
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - E E Mulkearns-Hubert
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - J Man
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - A B Hjelmeland
- 1] Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA [2] Department of Molecular Medicine, Cleveland Clinic, Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - J Yu
- 1] Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA [2] Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH, USA
| | - J D Lathia
- 1] Department of Molecular Medicine, Cleveland Clinic, Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA [2] Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - J N Rich
- 1] Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA [2] Department of Molecular Medicine, Cleveland Clinic, Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
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Jiang H, Liu JK, Wang JD, Lu Y, Zhang M, Yang XH, Hong DJ. The biotoxicity of hydroxyapatite nanoparticles to the plant growth. J Hazard Mater 2014; 270:71-81. [PMID: 24556461 DOI: 10.1016/j.jhazmat.2014.01.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 08/04/2013] [Revised: 12/25/2013] [Accepted: 01/22/2014] [Indexed: 06/03/2023]
Abstract
In the present study, hydroxyapatite (HAP) nanoparticles of different particle sizes with high crystallinity and similiar structure were prepared by hydrothermal method. The crystal structure and particle size were characterized by X-ray diffraction pattern (XRD), transmission electron microscopy (TEM) and Fourier transform infrared (FT-IR) spectroscopy. Mung bean sprouts were first used as experimental models. Instead of by MTT assay, the cytoxicity of HAP nanoparticles were proved and evaluated by measuring the hypocotyle length of mung bean sprouts in the culture media. The result showed that the inhibition effect to the growth of mung bean sprouts enhanced when HAP nanoparticles existed. Culture media of HAP nanoparticles with different concentrations and particle sizes was prepared to investigate the level of inhibition effect to the growth of mung bean sprouts. The result found that hypocotyl length of mung bean sprouts were the shortest cultured in 5mg/mL culture media in which the HAP nanoparticles were prepared by hydrothermal method for 24h. It was concluded the inhibition effect depended on the amount of intracellular HAP nanoparticles. The nanostructure and Ca(2+) concentration were considered as the main factors to cause cell apoptosis which was the reason of inhibition. The study provided a preliminary perspective about biotoxicity of HAP nanomaterials to the plant growth.
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Affiliation(s)
- Hao Jiang
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237 PR China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237 PR China.
| | - Jian-Dong Wang
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237 PR China
| | - Yi Lu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237 PR China
| | - Min Zhang
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237 PR China
| | - Xiao-Hong Yang
- Department of Chemistry, Chizhou University, Chizhou 247000, PR China.
| | - Dan-Jing Hong
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237 PR China
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41
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Tsai TT, Liu JK, Chang YM, Chen KF, Kao CM. Application of polycolloid-releasing substrate to remediate trichloroethylene-contaminated groundwater: a pilot-scale study. J Hazard Mater 2014; 268:92-101. [PMID: 24468531 DOI: 10.1016/j.jhazmat.2014.01.004] [Citation(s) in RCA: 5] [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: 10/22/2013] [Revised: 12/30/2013] [Accepted: 01/05/2014] [Indexed: 06/03/2023]
Abstract
The objectives of this pilot-scale study were to (1) evaluate the effectiveness of bioremediation of trichloroethylene (TCE)-contaminated groundwater with the supplement of slow polycolloid-releasing substrate (SPRS) (contained vegetable oil, cane molasses, surfactants) under reductive dechlorinating conditions, (2) apply gene analyses to confirm the existence of TCE-dechlorinating genes, and (3) apply the real-time polymerase chain reaction (PCR) to evaluate the variations in TCE-dechlorinating bacteria (Dehalococcoides spp.). Approximately 350L of SPRS solution was supplied into an injection well (IW) and groundwater samples were collected and analyzed from IW and monitor wells periodically. Results show that the SPRS caused a rapid increase of the total organic carbon concentration (up to 5794mg/L), and reductive dechlorination of TCE was significantly enhanced. TCE dechlorination byproducts were observed and up to 99% of TCE removal (initial TCE concentration=1872μg/L) was observed after 50 days of operation. The population of Dehalococcoides spp. increased from 4.6×10(1) to 3.41×10(7)cells/L after 20 days of operation. DNA sequencing results show that there were 31 bacterial species verified, which might be related to TCE biodegradation. Results demonstrate that the microbial analysis and real-time PCR are useful tools to evaluate the effectiveness of TCE reductive dechlorination.
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Affiliation(s)
- T T Tsai
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - J K Liu
- Department of Biological Science, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Y M Chang
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei, Taiwan
| | - K F Chen
- Department of Civil Engineering, National Chi Nan University, Nantou, Taiwan
| | - C M Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan.
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42
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Wang JD, Liu JK, Tong Q, Lu Y, Yang XH. High Degradation Activity and Quantity Production of Aluminum-Doped Zinc Oxide Nanocrystals Modified by Nitrogen Atoms. Ind Eng Chem Res 2014. [DOI: 10.1021/ie4041302] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jian-Dong Wang
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 People’s Republic of China
| | - Jin-Ku Liu
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 People’s Republic of China
| | - Qin Tong
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 People’s Republic of China
| | - Yi Lu
- Key Laboratory
for Advanced Materials, East China University of Science and Technology, Shanghai, 200237 People’s Republic of China
| | - Xiao-Hong Yang
- Department of Chemistry, Chizhou University, Chizhou 247000, People’s Republic of China
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Qin T, Liu CJ, Zhang HW, Pan YF, Tang Q, Liu JK, Wang YZ, Hu MX, Xue F. Effect of the IkBα mutant gene delivery to mesenchymal stem cells on rat chronic pancreatitis. Genet Mol Res 2014; 13:371-85. [PMID: 24535864 DOI: 10.4238/2014.january.21.5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study aimed to investigate the effect of inhibitors of the NF-kΒ alpha mutant gene (IkBaM) delivery to mensenchymal stem cells (MSCs) on rat chronic pancreatitis (CP). A total of 120 Sprague-Dawley rats were randomly divided into 6 groups of 20: Group A was injected with sterile saline solution, Group B was injected with allogenic MSCs, Group C1 was injected with allogenic IkBαM-MSCs cultured in vitro 4 h before CP modeling, Group C2 was injected with allogenic IkBαM-MSCs cultured in vitro during CP modeling, Group C3 was cultured with allogenic IkBαM-MSCs cultured in vitro 4 h after CP modeling, and Group D was injected with rAAV2-MSCs. Cytokine levels of ICAM-1, CTGF, IL-1, IL-6, IL-8, TNF-α, TIMP-1, TIMP-2, IL-10, FN, MMP-1, MMP-2, MMP-3, and MMP-9 were examined. The results indicated that allogenic IκBαM-MSCs could reduce pro-inflammatory cytokine levels and increase anti-inflammatory cytokine levels in CP. The allogenic IkBαM-MSCs reduced the activation and promoted the apoptosis of pancreatic stellate cells in the rat model of CP. IkBαM-MSCs influenced the proliferation and apoptosis of pancreatic stellate cells by regulating the activation of the PPAR, MAPK, mTOR, TGF-β, NOD-like receptor, Notch, WNT, TGF-β1-SMAD-2/3, and P53 signal transduction pathways.
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Affiliation(s)
- T Qin
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - C J Liu
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - H W Zhang
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - Y F Pan
- Department of Infection Disease, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Q Tang
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - J K Liu
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - Y Z Wang
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - M X Hu
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - F Xue
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
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Lin WC, Chang-Chien GP, Kao CM, Newman L, Wong TY, Liu JK. Biodegradation of Polychlorinated Dibenzo--Dioxins by Strain NSYSU. J Environ Qual 2014; 43:349-357. [PMID: 25602569 DOI: 10.2134/jeq2013.06.0215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The dioxin-degrading bacterium strain NSYSU (NSYSU strain) has been isolated from dioxin-contaminated soil by selective enrichment techniques. In the present study, the NSYSU strain was investigated for its capability to biodegrade polychlorinated dibenzo--dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) under aerobic and anaerobic conditions. High-resolution gas chromatography-mass spectrometry and a chemically activated luciferase gene expression bioassay were performed to determine the presence of dioxin compounds. The results indicate that the NSYSU strain could degrade PCDDs and PCDFs under anaerobic conditions in liquid cultures. The main intermediates of the dechlorination process were identified. The results of the bioreactor test indicate that the NSYSU strain could also degrade PCDDs and PCDFs effectively in soil slurries under aerobic conditions. Results from the bioreactor experiment show that approximately 98 and 97% of octachlorodibenzofuran and OCDD were degraded, respectively. The dioxin concentrations in soil slurry decreased from 5823 to 1198 pg toxic equivalency g, resulting in total dioxin removal of 79%. These first findings suggest that the NSYSU strain has the potential to be an effective tool for the bioremediation of soils contaminated with highly recalcitrant organic compounds.
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Abstract
Our objective was to observe a new form of turbulence caused bybiological effects - biological micro-turbulence and explore itsprocess and controlling factors. The methods used were proteusmirabilis CGCs micro-cultured to render the occurrence of the specific movement on micro-organic suspension and its controllingfactors were determined by comparison with the control trials.The results showed that turbulence under the microscope was generally in a mass but partially regular. It was also confirmedthat the turbulence under the microscope exhibited hollow effect,temperature-dependent switching on of occurrence and self-controlof suspension quantity. It is clarified that this new form ofturbulence is a spontaneous and self-control process, which providesan experimental model with controllable conditions for studies ofturbulence and a new way for researches on the mechanism andphysiological functions of the flow of body liquid.
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Affiliation(s)
- J K Liu
- Research Center of Bio-wavees, Third Military Medical University, Chongqing, 400038 P.R. of China
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46
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Luo CX, Liu JK, Lu Y, Du CS. Controllable preparation and sterilization activity of zinc aluminium oxide nanoparticles. Materials Science and Engineering: C 2012. [DOI: 10.1016/j.msec.2012.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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47
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Liu JK, Wang JD, Luo CX, Zhang M. Preparation and enhanced catalyst effect of assembled hydroxylapatite microsphere chains. J Nanosci Nanotechnol 2012; 12:1924-1930. [PMID: 22755000 DOI: 10.1166/jnn.2012.5850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The hydroxyapatite (HAP) assembled microsphere chains with high surface area and large size in length (20-35 microm) were prepared by a facile and efficient cooperation template method. The products were characterized by XRD, TEM, SEM, FT-IR, EDS, BET, etc. The possible mechanism for the formation of HAP assembled microsphere chains was also discussed. In addition, the products were used as carried materials to synthesize HAP/TiO2 (anatase phase) composite catalyst, the bandgap of TiO2 nanomaterials was enlarged. The degradation speed of methyl orange (MO) was increased to 150% when using the composite as catalyst compared with using TiO2 nanoparticles. At the same time, the composite catalyst can be separated and recycled more easily than existing carry materials.
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Affiliation(s)
- Jin-Ku Liu
- Department of Chemistry, East China University of Science and Technology, Shanghai 200237, PR China
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Liu JK, Luo CX, Wang JD, Yang XH, Zhong XH. Controlled synthesis of silver phosphate crystals with high photocatalytic activity and bacteriostatic activity. CrystEngComm 2012. [DOI: 10.1039/c2ce25604e] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liang SH, Liu JK, Lee KH, Kuo YC, Kao CM. Use of specific gene analysis to assess the effectiveness of surfactant-enhanced trichloroethylene cometabolism. J Hazard Mater 2011; 198:323-330. [PMID: 22071259 DOI: 10.1016/j.jhazmat.2011.10.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 10/09/2011] [Accepted: 10/17/2011] [Indexed: 05/31/2023]
Abstract
The objective of this study was to evaluate the effectiveness of in situ bioremediation of trichloroethylene (TCE)-contaminated groundwater using specific gene analyses under the following conditions: (1) pretreatment with biodegradable surfactants [Simple Green™ (SG) and soya lecithin (SL)] to enhance TCE desorption and dissolution, and (2) supplementation with SG, SL, and cane molasses as primary substrates to enhance the aerobic cometabolism of TCE. Polymerase chain reaction (PCR), denaturing gradient gel electrophoresis (DGGE), and nucleotide sequence analysis were applied to monitor the variations in specific activity-dependent enzymes and dominant microorganisms. Results show that TCE-degrading enzymes, including toluene monooxygenase, toluene dioxygenase, and phenol monooxygenase, were identified from sediment samples collected from a TCE-spill site. Results from the microcosm study show that addition of SG, SL, or cane molasses can enhance the aerobic cometabolism of TCE. The TCE degradation rates were highest in microcosms with added SL, the second highest in microcosms containing SG, and lowest in microcosms containing cane molasses. This indicates that SG and SL can serve as TCE dissolution agents and act as primary substrates for indigenous microorganisms. Four dominant microorganisms (Rhodobacter sp., Methyloversatilis sp., Beta proteobacterium sp., and Hydrogenophaga pseudoflava) observed in microcosms might be able to produce TCE-degrading enzymes for TCE cometabolic processes.
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Affiliation(s)
- S H Liang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
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Zhang M, Liu JK, Miao R, Li GM, Du YJ. Preparation and characterization of fluorescence probe from assembly hydroxyapatite nanocomposite. Nanoscale Res Lett 2010; 5:675-679. [PMID: 20672031 PMCID: PMC2894312 DOI: 10.1007/s11671-010-9530-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [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: 11/18/2009] [Accepted: 01/05/2010] [Indexed: 05/29/2023]
Abstract
A new nanocomposite fluorescence probe with thioglycolic acid (TA) functional layers embedded inside the hydroxyapatite nanoribbon spherulites has been synthesized. The fluorescence intensity of the novel probe is about 1.5-3.3-fold increase compared with the probe containing no TA. When used to detect cadmium ion, the most of original assembly nanoribbon spherulites structure in the novel probe is found to have been damaged to new flake structures. The mechanism of determining cadmium ion in alcohol solution has been studied. The present systematic study provides significant information on the effect of assembly nanostructure on the metal-enhanced fluorescence phenomenon.
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Affiliation(s)
- Min Zhang
- Department of Chemistry, East China University of Science and Technology, 200237, Shanghai, People’s Republic of China
| | - Jin-Ku Liu
- Department of Chemistry, East China University of Science and Technology, 200237, Shanghai, People’s Republic of China
| | - Ran Miao
- Department of Chemistry, East China University of Science and Technology, 200237, Shanghai, People’s Republic of China
| | - Guang-Ming Li
- School of Environmental Science and Engineering, Tongji University, 200092, Shanghai, People’s Republic of China
| | - Yao-Jie Du
- Department of Chemistry, East China University of Science and Technology, 200237, Shanghai, People’s Republic of China
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