In-situ grown multi-layered porous TiO2 composited copper doped tannic acid microflora on titanium surface for NIR responsive enhanced anti-bacteria

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-06-15 DOI:10.1016/j.matlet.2025.138936

Peilin Wu , Qiqi Lu , Tianchen Liu, Jihua Nie, Zujiang Liu, Xi Rao

引用次数: 0

Abstract

In this study, tannic acid and copper nitrate were used to create a porous titanium dioxide/Cu-doped tannic acid composite coating for antibacterial titanium implants. The results showed that the deposition of copper doped tannic acid microflora on the porous structure of titanium dioxide could confer controllable antibacterial adhesion properties, and the antibacterial rates of S. aureus and E. coli were improved to 95.27% and 97.19% under NIR. The coating also showed good hydrophilicity and osteoblast biocompatibility, indicating potential application for orthopaedics implant modification.

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在钛表面原位生长多层多孔TiO2复合铜掺杂单宁酸菌群，增强近红外响应的抗菌性能

本研究采用单宁酸和硝酸铜制备多孔二氧化钛/掺铜单宁酸复合涂层，用于抗菌钛植入物。结果表明，铜掺杂单宁酸菌群沉积在二氧化钛的多孔结构上，具有可控的抗菌粘附性能，近红外下对金黄色葡萄球菌和大肠杆菌的抑菌率分别提高到95.27%和97.19%。该涂层还具有良好的亲水性和成骨细胞生物相容性，在骨科植入物修饰方面具有潜在的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive