Enhancing antibacterial and anticorrosion properties of 304 stainless steel surfaces: a multi-modification approach based on DA/PEI/SiO2/AMPs

IF 2.3 4区 材料科学 Q2 Chemistry Journal of Coatings Technology and Research Pub Date : 2023-01-03 DOI:10.1007/s11998-022-00718-7
De Liu, Huming Wang, Xuxu Dong, Xiaodan Liu, Sergi Dosta, Chao Zhang, Pan Cao
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引用次数: 1

Abstract

Marine fouling can cause a series of hazards in the marine industrial field, and the traditional antifouling methods do not fulfill the green antifouling requirement. Herein, a novel DA/PEI/SiO2/antibacterial peptide antifouling coating was prepared by a multi-modification approach. Initially, the nanocoatings were prepared by depositing DA, PEI, and SiO2 on the dopamine (DA)-modified 304 stainless steel (SS) surface, and finally, the DA/PEI/SiO2/AMPs composite coatings were prepared by grafting antimicrobial peptides (AMPs). The surfaces of SS before and after modification were characterized by Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectrometer (XPS), field emission scanning electron microscopy (SEM), contact angle measurement, and 3D optical profilometer. SSN-1 cells were used to evaluate the cytocompatibility of the modified surface. The results revealed that the cells cultured on the modified surface still maintained a good adhesion morphology, demonstrating the superior cytocompatibility of the composite coating. The anti-biofilm and antimicrobial properties of the modified samples were evaluated using Vibrio natriegens. The antibacterial efficiency of SS-DA/PEI/SiO2 surfaces before and after AMPs modification reached 78.39 and 95.90%, and anti-biofilm efficiency of AMPs modified surface achieved 72.87% corresponding to 44.19% of SS-DA/PEI/SiO2. The successful grafting of AMPs improved the antibacterial and anti-biofilm properties of the modified sample surfaces. Electrochemical and stability tests indicated that the modified sample surfaces exhibited excellent corrosion resistance and antifouling stability properties. This research could provide a novel green anti-fouling and anti-corrosion strategy for the marine industry and other related fields.

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增强304不锈钢表面的抗菌和防腐性能:基于DA/PEI/SiO2/AMPs的多重改性方法
船舶污垢在船舶工业领域会造成一系列的危害,传统的防污方法不能满足绿色防污的要求。本文采用多重改性的方法制备了一种新型的DA/PEI/SiO2/抗菌肽防污涂料。首先在多巴胺(DA)修饰的304不锈钢(SS)表面沉积DA、PEI和SiO2制备纳米涂层,最后通过接枝抗菌肽(AMPs)制备DA/PEI/SiO2/AMPs复合涂层。采用傅里叶变换红外光谱仪(FTIR)、x射线光电子能谱仪(XPS)、场发射扫描电镜(SEM)、接触角测量和三维光学轮廓仪对改性前后的SS表面进行了表征。用SSN-1细胞评价改性表面的细胞相容性。结果表明,在改性表面上培养的细胞仍保持良好的粘附形态,表明复合涂层具有良好的细胞相容性。利用营养弧菌对改性样品的抗生物膜和抗菌性能进行了评价。AMPs修饰前后的SS-DA/PEI/SiO2表面抗菌效率分别达到78.39%和95.90%,AMPs修饰后的SS-DA/PEI/SiO2表面抗生物膜效率达到72.87%,对应于SS-DA/PEI/SiO2的44.19%。amp的成功接枝提高了改性样品表面的抗菌和抗生物膜性能。电化学和稳定性测试表明,改性后的样品表面具有优异的耐腐蚀和防污稳定性。该研究可为海洋工业及其他相关领域提供一种新的绿色防污防腐蚀策略。
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来源期刊
Journal of Coatings Technology and Research
Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
4.40
自引率
8.70%
发文量
0
期刊介绍: Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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