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Construction of pH-Triggered DNA Hydrogels Based on Hybridization Chain Reactions

chemical Research in Chinese Universities 2020年第2期36卷 243-246页

作者： LI Yujie CHEN Jie DONG Yuanchen LIU Huajie LIU Dongsheng Key Laboratory of Organic Optoelectronics&Molecular Engineering Ministry of EducationDepartment of ChemistryTsinghua UniversityBeijing 100084P.R.China School of Chemical Science and Engineering Shanghai Research Institute for Intelligent Autonomous SystemsKey Laboratory of Advanced Civil Engineering MaterialsMinistry of EducationTongji UniversityShanghai 200092P.R.China Division of Physical Biology CAS Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800P.R.China CAS Key Laboratory of Colloid Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China

As a novel type of bio-functional material,DNA hydrogels have attracted more and more attention due to their successful applications in 3D cell culturing and tissue engineering for the designable and programmable ***,we have developed a pH-triggered DNA hydrogel based on a clamped hybridization chain reaction(C-HCR).In this system,a DNA switch was designed,which can release the initiator strand in a controllable way via the formation of the C-G-C4 triplex under the pH *** the pre-gelation solution is stable in neutral environment,the C-HCR will trigger the sol-gel transition as the pH decreased to *** strategy has endowed the DNA hydrogel with good controllability for triggering,which also shows potential in intellectual responsiveness to certain stimuli.

关键词： DNA hydrogel pH-Triggered Hybridization chain reaction Sol-gel phase transition

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Sub-femtonewton force sensing in solution by super-resolved photonic force microscopy (Jun, 10.1038/s41566-024-01462-7, 2024)

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NATURE PHOTONICS 2024年第9期18卷 998-998页

作者： Shan, Xuchen Ding, Lei Wang, Dajing Wen, Shihui Shi, Jinlong Chen, Chaohao Wang, Yang Zhu, Hongyan Huang, Zhaocun Wang, Shen S. J. Zhong, Xiaolan Liu, Baolei Reece, Peter John Ren, Wei Hao, Weichang Lu, Xunyu Lu, Jie Su, Qian Peter Chang, Lingqian Sun, Lingdong Jin, Dayong Jiang, Lei Wang, Fan Beihang University School of Physics Beijing People’s Republic of China (GRID:grid.64939.31) (ISNI:0000 0000 9999 1211) University of Technology Sydney School of Biomedical Engineering Faculty of Engineering and Information Technology Sydney Australia (GRID:grid.117476.2) (ISNI:0000 0004 1936 7611) RMIT University Centre for Atomaterials and Nanomanufacturing School of Science Melbourne Australia (GRID:grid.1017.7) (ISNI:0000 0001 2163 3550) University of Technology Sydney Institute for Biomedical Materials and Devices (IBMD) School of Mathematical and Physical Sciences Faculty of Science Sydney Australia (GRID:grid.117476.2) (ISNI:0000 0004 1936 7611) The Australian National University Australian Research Council Centre of Excellence for Transformative Meta-Optical Systems Department of Electronic Materials Engineering Research School of Physics Canberra Australia (GRID:grid.1001.0) (ISNI:0000 0001 2180 7477) Beihang University Key Laboratory of Biomechanics and Mechanobiology (Ministry of Education) Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering Beijing People’s Republic of China (GRID:grid.64939.31) (ISNI:0000 0000 9999 1211) University of Melbourne Computing and Information Systems Department Melbourne School of Engineering Melbourne Australia (GRID:grid.1008.9) (ISNI:0000 0001 2179 088X) The University of New South Wales School of Physics Sydney Australia (GRID:grid.1005.4) (ISNI:0000 0004 4902 0432) Shaanxi Normal University School of Chemistry & Chemical Engineering Xi’an People’s Republic of China (GRID:grid.412498.2) (ISNI:0000 0004 1759 8395) The University of New South Wales Particles and Catalysis Research Laboratory School of Chemical Engineering Sydney Australia (GRID:grid.1005.4) (ISNI:0000 0004 4902 0432) University of Technology Sydney Australian Artificial Intelligence Institute Faculty of Engineering and IT Sydney Australia (GRID:grid.117476.2) (ISNI:0000 0004 1936 7611) University of

Precise force measurement is critical to probe biological events and physics processes, spanning from molecular motor’s motion to the Casimir effect, as well as the detection of gravitational waves. Yet, despite extensive technological developments, the three-dimensional nanoscale measurement of weak forces in aqueous solutions still faces major challenges. Techniques that rely on optically trapped nanoprobes are of significant potential but are beset with limitations, including probe heating induced by high trapping power, undetectable scattering signals and localization errors. Here we report the measurement of the long-distance interaction force in aqueous solutions with a minimum detected force value of 108.2 ± 510.0 attonewton. To achieve this, we develop a super-resolved photonic force microscope based on optically trapped lanthanide-doped nanoparticles coupled with nanoscale three-dimensional tracking-based force sensing. The tracking method leverages neural-network-empowered super-resolution localization, where the position of the force probe is extracted from the optical-astigmatism-modified point spread function. We achieve a force sensitivity down to 1.8 fN Hz–1/2, which approaches the nanoscale thermal limit. We experimentally measure electrophoresis forces acting on single nanoparticles as well as the surface-induced interaction force on a single nanoparticle. This work opens the avenue of nanoscale thermally limited force sensing and offers new opportunities for detecting sub-femtonewton forces over long distances and biomechanical forces at the single-molecule ***-resolved photonic force microscopy employs the fluorescence of lanthanide-doped nanoparticles as a force probe, enabling the measurement of sub-femtonewton forces with a sensitivity of 1.8 fN Hz–1/2, approaching the thermal limit.

关键词： Electrophoresis

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Interfacial Defect Passivation by Multiple-Effect Molecule for Efficient and Stable Perovskite Solar Cells

SSRN

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SSRN 2023年

作者： Ma, Chunying Zhang, Chu Chen, Shennan Ye, Yongchun Sun, Lei Chen, Miaogen Gao, Liguo Sulaiman, Yusran Ma, Tingli College of Materials and Chemistry China Jiliang University 258 Xue yuan Street Qiantang District Zhejiang Hangzhou310018 China Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology 2-4 Hibikino Wakamatsu Kitakyushu Fukuoka808-0196 Japan State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology Dalian116023 China Department of Chemistry Faculty of Science Universiti Putra Malaysia Selangor Serdang43400 Malaysia China Jiliang University China

Perovskite solar cells (PSCs) are widely studied as the most promising photovoltaic device, which have attracted vast interest in recent years due to their excellent power conversion efficiency (PCE) and low cost. Although the PSC have reached a PCE over 25%, the interface between the perovskite and hole transport layer (HTL) still is a crucial factor limiting higher PCE and long-term stability. In this work, we choose an organic molecule Bis(trifluoromethyl)benzo amide (6FBZm) to passivate defects at the perovskite/HTL interface. Owing to a strong interaction with uncoordinated Pb2+, the 6FBZm effectively passivated the surface defects, remarkably promoted carrier transportation. As a result, the perovskite device based on 6FBZm surface modification showed a PCE increase of 16.4% over the control device. Especially, the fill factor (FF) and the open-circuit voltage (VOC) of the modified device increased significantly. In addition, the unencapsulated 6FBZm-modified device maintains better PCE compared to the control device after aging for over 600 h in ambient air with extreme humidity and temperature conditions. Results suggested that the introduction of 6FBZm is a promising strategy to modify the surface of perovskite film aiming at highly efficient and stable perovskite solar cells. © 2023, The Authors. All rights reserved.

关键词： Molecules

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Core-shell structured nanoparticles for photodynamic therapy-based cancer treatment and related imaging

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Coordination Chemistry Reviews 2022年 458卷

作者： Yang, Yang Zeng, Zhuotong Almatrafi, Eydhah Huang, Danlian Zhang, Chen Xiong, Weiping Cheng, Min Zhou, Chengyun Wang, Wenjun Song, Biao Tang, Xiang Zeng, Guangming Xiao, Rong Li, Zhi College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education) Hunan University Changsha 410082 China Department of Dermatology Second Xiangya Hospital Central South University Changsha 410011 China Department of Chemical and Materials Engineering University of Alberta Edmonton T6G 1H9 AB Canada Center of Research Excellence in Renewable Energy and Power Systems Center of Excellence in Desalination Technology Department of Mechanical Engineering Faculty of Engineering-Rabigh King Abdulaziz University Jeddah 21589 Saudi Arabia

Photodynamic therapy (PDT) is an emerging noninvasive therapy modality for treating cancer diseases. However, conventional PDT suffers from poor stability of organic photosensitizers, limited tissue penetration depth of excitation light and hypoxic tumor microenvironment, which hinders its modern clinical applications. The combination of PDT and nanotechnology is becoming a promising technology to tackle these troubles. Core-shell structured nanoparticles are of great interest as they can integrate the functionalities of individual components into one structure and exhibit improved physical and chemical properties that are different from the single component. Therefore, many efforts have been paid to develop core–shell structured nanoparticles for PDT of cancer. This review provides a panorama of the latest achievement in the developments of core–shell structured nanoparticles for PDT-based cancer treatment and related imaging. Concretely, this review starts with the categories of core–shell structured nanoparticles, followed by the functions of these nanoparticles in PDT of cancer, including photosensitizer delivery vehicle, energy transducer, photosensitizer and hypoxic tumor microenvironment modulator. Then the applications of core–shell structured particles for photodynamic synergistic therapy of cancer are highlighted as well as their imaging applications as contrast agents. Finally, perspectives on the major challenges and opportunities are presented for better developments in the future research. © 2022 Elsevier B.V.

关键词： Cancer treatment Core-shell Imaging Photodynamic therapy Synergistic therapy

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Surface Reconstruction of An Integrated CoO-Co2Mo3O8Electrode Enabling Efficient Ampere-Level Hydrogen Evolution in Alkaline Water or Seawater

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Angewandte Chemie 2025年

作者： Prof. Jiajia Lu Peng-Jun Deng Dr. Yang Liu Prof. Shengyu Jing Prof. Panagiotis Tsiakaras Henan Provincial Key Laboratory of Nanocomposites and Applications Institute of Nano-Structured Functional Materials Huanghe Science and Technology College Zhengzhou 450006 China Laboratory of Alternative Energy Conversion Systems Department of Mechanical Engineering School of Engineering University of Thessaly Pedion Areos 38834 Greece School of Materials Science and Engineering Henan Normal University Xinxiang 453007 China School of Information and Control Engineering China University of Mining and Technology Xuzhou 221116 China

To accelerate the water dissociation in the Volmer step and alleviate the destruction of bubbles to the physical structure of catalysts during the alkaline hydrogen evolution, an integrated electrode of cobalt oxide and cobalt-molybdenum oxide grown on Ni foam, named CoO-Co 2 Mo 3 O 8 , is designed. This integrated electrode enhances the catalyst-substrate interaction confirmed by a micro-indentation tester, and thus hinders the destruction of the physical structure of catalysts caused by bubbles. Electrochemical testing shows the occurrence of a surface reconstruction of the integrated electrode, and CoO is transformed into Co(OH) 2 , denoted as Co(OH) 2 -Co 2 Mo 3 O 8 . Theoretical calculations determine that Co(OH) 2 -Co 2 Mo 3 O 8 has significantly low activation barrier for water dissociation and presents easy hydroxide desorption, which accelerate the catalytic reaction. Electrochemical experiments show that Co(OH) 2 -Co 2 Mo 3 O 8 exhibits outstanding activity, reaching current density values of −100 and −1000 mA cm −2 with overpotentials only 57.8 and 195.8 mV, respectively. Furthermore, it demonstrates excellent stability at −500 and −1000 mA cm −2 for 200 h. Combined with the previously reported anode, the two-electrode system also provides the stable operation from 100 to 1000 mA cm −2 for 600 h in alkaline solution, and over 200 h at 500 and 1000 mA cm −2 in alkaline seawater.

关键词： hydrogen evolution surface reconstruction water dissociation integrated electrode industrial level current

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General-purpose machine-learned potential for 16 elemental metals and their alloys

arXiv

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arXiv 2023年

作者： Song, Keke Zhao, Rui Liu, Jiahui Wang, Yanzhou Lindgren, Eric Wang, Yong Chen, Shunda Xu, Ke Liang, Ting Ying, Penghua Xu, Nan Zhao, Zhiqiang Shi, Jiuyang Wang, Junjie Lyu, Shuang Zeng, Zezhu Liang, Shirong Dong, Haikuan Sun, Ligang Chen, Yue Zhang, Zhuhua Guo, Wanlin Qian, Ping Sun, Jian Erhart, Paul Ala-Nissila, Tapio Su, Yanjing Fan, Zheyong Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Beijing100083 China School of Materials Science and Engineering Hunan University Changsha410082 China MSP group QTF Centre of Excellence Department of Applied Physics Aalto University P.O. Box 15600 Aalto EspooFI-00076 Finland Chalmers University of Technology Department of Physics Gothenburg41926 Sweden National Laboratory of Solid State Microstructures School of Physics Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Department of Civil and Environmental Engineering George Washington University WashingtonDC20052 United States Department of Electronic Engineering and Materials Science and Technology Research Center The Chinese University of Hong Kong N.T. Shatin999077 Hong Kong Department of Physical Chemistry School of Chemistry Tel Aviv University Tel Aviv6997801 Israel Institute of Zhejiang University-Quzhou Quzhou324000 China College of Chemical and Biological Engineering Zhejiang University Hangzhou310027 China State Key Laboratory of Mechanics and Control of Mechanical Structures Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education Institute for Frontier Science Nanjing University of Aeronautics and Astronautics Nanjing210016 China Department of Mechanical Engineering The University of Hong Kong Pokfulam Road Hong Kong School of Science Harbin Institute of Technology Shenzhen518055 China College of Physical Science and Technology Bohai University Jinzhou121013 China Interdisciplinary Centre for Mathematical Modelling Department of Mathematical Sciences Loughborough University Leicestershire LoughboroughLE11 3TU United Kingdom

Machine-learned potentials (MLPs) have exhibited remarkable accuracy, yet the lack of general-purpose MLPs for a broad spectrum of elements and their alloys limits their applicability. Here, we present a feasible approach for constructing a unified general-purpose MLP for numerous elements, demonstrated through a model (UNEP-v1) for 16 elemental metals and their alloys. To achieve a complete representation of the chemical space, we show, via principal component analysis and diverse test datasets, that employing one-component and two-component systems suffices. Our unified UNEP-v1 model exhibits superior performance across various physical properties compared to a widely used embedded-atom method potential, while maintaining remarkable efficiency. We demonstrate our approach's effectiveness through reproducing experimentally observed chemical order and stable phases, and large-scale simulations of plasticity and primary radiation damage in MoTaVW alloys. This work represents a significant leap towards a unified general-purpose MLP encompassing the periodic table, with profound implications for materials science. Copyright © 2023, The Authors. All rights reserved.

关键词： Radiation damage

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Super-Assembled Lamellar Conductive Heterochannels with Optical-Electrical Coupling Sensitivity for Smart Ion Transport

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Angewandte Chemie 2025年

作者： Yaxin Guo Xin Zhang Dr. Shan Zhou Dr. Qirui Liang Hui Zeng Dr. Yeqing Xu Dr. Abuduheiremu Awati Prof. Kang Liang Prof. Dazhang Zhu Prof. Mingxian Liu Prof. Lei Jiang Prof. Biao Kong Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200438 P. R. China College of Materials Science and Engineering Institute of Biomedical Materials and Engineering Qingdao University Qingdao 266071 P. R. China Qingdao Innovation and Development Center Harbin Engineering University Qingdao 266400 P. R. China School of Chemical Engineering and Graduate School of Biomedical Engineering The University of New South Wales Sydney New South Wales 2052 Australia Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and Engineering Tongji University Shanghai 200092 P. R. China CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science Technical Institute of Physics Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China

Artificial nanofluidic devices inspired bylight-driven ion transport in biological systems, leveraging the photoelectric effect, have attracted extensive attention for their potential in signal transduction and smart ion transport applications. However, effective separation of photogenerated carriers in traditional p-n junction interface can be hindered by energy band structure of different semiconductor materials. Here, we present a novel approach using conductive polypyrrole (PPy) to modify graphene oxide (GO), creating polypyrrole-graphene oxide (PyGO) functional lamellar conductive nanochannels with tailored channel-sized gradients and inherent optical-electrical coupling sensitivity via a facile super-assembly strategy. This design facilitates the PyGO own conductive lamellar channels and efficient separation of photogenerated carriers, resulting in significantly enhanced selective ion transport behavior. Coupling the conductivity and photosensitivity of PPy contributes to a peak power density of 14.1 W m −2 under a salinity differential of 0.5/0.01 M NaCl, which is 35.6 % higher than that under dark conditions. Additionally, combing the salinity gradients with optical-electrical coupling sensitivity of the nanofludic devices, we demonstrate the application of PyGO in a real-time detection device for monitoring ion concentrations in nutrient solutions, paving the way for smart irrigation systems in agriculture. This work presents a novel and effective strategy for light-driven ion transport with potential applications in energy conversion and beyond.

关键词： super-assembly conductive polypyrrole heterochannels smart ion transport salinity gradient energy harvesting

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Cell Volume Regulation Modulates Macrophage-Related Inflammatory Responses Via Jak/Stat Signaling Pathways

SSRN

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SSRN 2024年

作者： Yang, Xueying Wang, Qifan Shao, Fei Zhuang, Zhumei Wei, Ying Zhang, Yang Zhang, Lijun Ren, Changle Wang, Huanan State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical Engineering Dalian University of Technology Dalian116024 China MOE Key Laboratory of Bio-Intelligent Manufacturing Dalian Key Laboratory of Artificial Organ and Regenerative Medicine School of Bioengineering Dalian University of Technology Liaoning Dalian China Zhejiang University-University of Edinburgh Institute Zhejiang University School of Medicine Haining China Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cells and Regenerative Medicine Zhejiang University School of Medicine Hangzhou China Department of Sports Medicine The Second Affiliated Hospital Liangzhu Laboratory Zhejiang University School of Medicine Hangzhou China Dalian University of Technology China Institute of Stomatological Department of Joint Surgery Dalian Municipal Central Hospital Dalian Medical University Dalian China

Cell volume as a characteristic of changes in response to external environmental cues has been shown to control the fate of stem cells. However, its influence on macrophage behavior and macrophage-mediated inflammatory responses have rarely been explored. Herein, through mediating the volume of macrophages by adding polyethylene glycol (PEG), we demonstrated the feasibility of fine-tuning cell volume to regulate macrophage polarization towards anti-inflammatory phenotypes, thereby enabling to reverse macrophage-mediated inflammation response. Specifically, lower the volume of primary macrophages can induce both resting macrophages (M0) and stimulated pro-inflammatory macrophages (M1) to up-regulate the expression of anti-inflammatory factors and down-regulate pro-inflammatory factors. Further mechanistic investigation revealed that macrophage polarization resulting from changing cell volume might be mediated by JAK/STAT signaling pathway evidenced by the transcription sequencing analysis. We further propose to apply this strategy for the treatment of arthritis via direct introduction of PEG into the joint cavity to modulate synovial macrophage-related inflammation. Our preliminary results verified the credibility and effectiveness of this treatment evidenced by the significant inhibition of cartilage destruction and synovitis at early stage. In general, our results suggest that cell volume can be a biophysical regulatory factor to control macrophage polarization and potentially medicate inflammatory response, thereby providing a potential facile and effective therapy for modulating macrophage mediated inflammatory responses. © 2024, The Authors. All rights reserved.

关键词： Macrophages

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Effects of fluorine on photocatalysis

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Chinese Journal of Catalysis 2020年第10期41卷 1451-1467页

作者： Xiaofang Li Xiaofeng Wu Shengwei Liu Yuhan Li Jiajie Fan Kangle Lv Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Enducation College of Resources and Environmental ScienceSouth-Central University for NationalitiesWuhan 430074HubeiChina College of Chemistry and Chemical Engineering Wuhan University of Science and TechnologyWuhan 430081HubeiChina School of Environmental Science and Engineering Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation TechnologySun Yat-sen UniversityGuangzhou 510006GuangdongChina Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Key Laboratory of Catalysis and New Environmental MaterialsChongqing Technology and Business UniversityChongqing 400067China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and ChemistryEindhoven University of TechnologyP.0.Box 5135600 MB EindhovenThe Netherlands

Tailoring the microstructure of pristine TiO2 is essential to narrow its band gap and prolong the charge lifetime. In particular, strategies involving fluorine have been used successfully to tune the surface chemistry, electronic structure, and morphology of TiO2 photocatalysts to improve their photocatalytic activity based on the strong complexation between fluoride ions and TiO2 and the high electronegativity of fluorine. In this review, we summarize the strategies involving fluorine to establish highly efficient TiO2 photocatalytic systems or fabricate highly efficient TiO2 photocatalysts. The main fluorine effects(i.e. the effects of fluorine on photocatalysis) include the following four aspects:(1) Surface effects of fluoride on TiO2 photocatalysis,(2) effects of fluorine doping on TiO2 photocatalysis,(3) fluoride-mediated tailoring of the morphology of TiO2 photocatalysts, and(4) the effects of fluorine on non-TiO2 photocatalysis. Additionally, the unique applications of these fluorine effects in photocatalysis, including selective degradation of pollutants, selective oxidation of chemicals, water-splitting to produce H2, reduction of CO2 to produce solar fuels, and improvement of the thermostability of TiO2 photocatalysts, are reviewed.

关键词： TiO2 Fluorine Photocatalysis Doping Surface modification

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Inhibition of sulfate-reducing bacteria influenced corrosion on hydrophobic poly(dimethylsiloxane)coatings

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Journal of materials Science & Technology 2020年第17期52卷 198-206页

作者： Innocent O.Arukalam C.N.Njoku Lihui Yang Baorong Hou Ying Li Corrosion and Protection Division Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China Department of Polymer and Textile Engineering Federal University of TechnologyP.M.B.1526 Owerri Nigeria Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of OceanologyChinese Academy of SciencesQingdao 266071China Open Studio for Marine Corrosion and Protection Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Advanced Functional Materials/Corrosion Research Group Africa Centre of Excellence in Future Energies and Electrochemical Systems(ACE-FUELS)Federal University of Technology Owerri(FUTO)Nigeria

Sulfate-reducing bacteria(SRB)has been pointed out as one of the causative agents of microbial induced corrosion in the marine *** address this problem,novel strategies are being experimented as against the earlier methods which have been banned due to their toxic effects on useful aquatic ***,the aim of this study was to investigate the effect of non-toxic perfluorodecyltrichlorosilane(PFDTS)on resistance of hydrophobic poly(dimethylsiloxane)/phosphoric acid-treated zinc oxide(PDMS/PA-treated ZnO)coatings to SRB-induced biofouling and *** surface features of the coatings before and after exposure to SRB/NaCl solution were analyzed by scanning electron microscopy(SEM).Wettability of the coatings before and after exposure was also *** interaction of SRB with the coatings was investigated by FTIR *** resistance performance of the modified coatings against SRB-induced corrosion was monitored by electrochemical impedance spectroscopy(EIS).The EIS measurements revealed that 0.20 g PFDTS-based coating displayed highest corrosion resistance with impedance modulus of 6.301×10^10 after 15 d of exposure to SRB/NaCl *** results were corroborated by surface and chemical interaction analyses,and thus,indicate that 0.20 g PFDTSmodified PDMS/PA-treated ZnO coating has potentials for excellent SRB-induced corrosion resistance and anti-biofouling performance.

关键词： Corrosion Hydrophobic coating Perfluorodecyltrichlorosilane Poly(dimethylsiloxane) Sulfate-reducing bacteria

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