| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| GO/In2O3/PAZFP Composite Coating: Preparation and Resistance to Bovine Serum Protein Adhesion |
| LIU Bin1,†, WANG Wenqing1,†, YU Zhifei1, TANG Jing1, LI Zhengxin1, LIU Tianzhong2,*, SU Ge1,*
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1 School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, Shandong, China
2 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China |
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Abstract Biological attachment is the main cause of fouling that occurred in water environment facilities. The formation of organic or microbial membrane on the surface of materials is the first step of biological attachment. If the formation of initial organic film can be inhibited, further biological attachment can be effectively inhibited, and the harm of biological fouling on water environment facilities can be reduced. The organic membrane is mainly composed of protein and polysaccharide, so the materials that inhibit the attachment of polysaccharides and proteins can be applied to the surface of the facilities to prevent fouling. Hence, in this work, GO/In2O3 composites as filler and PAZFP resin emulsion as matrix were used to prepare a novel organic/inorganic composite coating with micro/nano surface structure and low surface energy, i.e. GO/In2O3/PAZFP composite film, and its anti-protein fouling property was characterized. The results show that the In2O3 nanoparticles have a cubic structure with the particle size of 20—60 nm and are evenly loaded on GO. GO has a large specific surface area and provides a large number of active sites for the loading of In2O3 particles, thus preventing the agglomeration of In2O3 particles and reducing the probability of electron-hole recombination. The investigation on the adsorption and degradation properties of bovine serum albumin (BSA) solution shows that the composite film has a certain adsorption effect on BSA protein in dark environment. Under natural light and UV light, the composite film has relatively strong photocatalytic performance of protein degradation. Due to the photocatalysis of In2O3 particles and the role of fluorinated monomer added in PAZFP coating, the composite film shows a synergistic antifouling effect and has a good anti-protein ability.
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Published: 25 February 2023
Online: 2023-03-02
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| Fund:Key Research and Development Program of China (2016YFB0601001). |
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2023, Vol. 37 
