Electrodepositing Ag on Anodized Stainless Steel for Enhanced Antibacterial Properties and Corrosion Resistance.

IF 5.2 3区医学 Q1 ENGINEERING, BIOMEDICAL Journal of Functional Biomaterials Pub Date : 2025-01-09 DOI:10.3390/jfb16010019

Yi Shao, Yue Jiang, Yongfeng Wang, Qiangsheng Dong, Cheng Wang, Yan Wang, Feng Xue, Chenglin Chu, Jing Bai

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Abstract

Antibacterial stainless steels have been widely used in biomedicine, food, and water treatment. However, the current antibacterial stainless steels face challenges in balancing corrosion resistance and antibacterial effectiveness, limiting their application range and lifespan. In this study, an oxide layer sealed with antibacterial Ag particles was constructed on the surface of 304 stainless steel through anodizing and electrodeposition, and the process parameters were optimized for achieving long-term antibacterial properties. The electrochemical tests demonstrated that the composite coating effectively enhanced the corrosion resistance of 304 stainless steel. The X-ray photoelectron spectroscopy analysis revealed the close binding mechanism between the Ag particles and the micropores in the oxide layer. Furthermore, the antibacterial stainless steel has an antibacterial rate of 99% against Escherichia coli (E. coli) and good biocompatibility. This study provides an effective approach for designing efficient, stable, and safe antibacterial stainless steel.

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电镀银在阳极氧化不锈钢上提高抗菌性能和耐蚀性。

抗菌不锈钢在生物医药、食品、水处理等领域有着广泛的应用。然而，目前抗菌不锈钢在平衡耐蚀性和抗菌性方面面临挑战，限制了其应用范围和使用寿命。本研究通过阳极氧化和电沉积在304不锈钢表面构建了一层以抗菌Ag粒子密封的氧化层，并对工艺参数进行了优化，以获得长期的抗菌性能。电化学试验表明，复合镀层有效地提高了304不锈钢的耐蚀性。x射线光电子能谱分析揭示了银颗粒与氧化层微孔之间的紧密结合机制。抗菌不锈钢对大肠杆菌的抑菌率达99%，具有良好的生物相容性。本研究为设计高效、稳定、安全的抗菌不锈钢提供了有效途径。

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来源期刊

Journal of Functional Biomaterials Engineering-Biomedical Engineering

CiteScore

4.60

自引率

4.20%

发文量

226

审稿时长

11 weeks

期刊介绍： Journal of Functional Biomaterials (JFB, ISSN 2079-4983) is an international and interdisciplinary scientific journal that publishes regular research papers (articles), reviews and short communications about applications of materials for biomedical use. JFB covers subjects from chemistry, pharmacy, biology, physics over to engineering. The journal focuses on the preparation, performance and use of functional biomaterials in biomedical devices and their behaviour in physiological environments. Our aim is to encourage scientists to publish their results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Several topical special issues will be published. Scope: adhesion, adsorption, biocompatibility, biohybrid materials, bio-inert materials, biomaterials, biomedical devices, biomimetic materials, bone repair, cardiovascular devices, ceramics, composite materials, dental implants, dental materials, drug delivery systems, functional biopolymers, glasses, hyper branched polymers, molecularly imprinted polymers (MIPs), nanomedicine, nanoparticles, nanotechnology, natural materials, self-assembly smart materials, stimuli responsive materials, surface modification, tissue devices, tissue engineering, tissue-derived materials, urological devices.