Chitosan/poly(4-vinylpyridine) coatings formed on AgNPs-decorated titanium
Chitosan/poly(4-vinylpyridine) coatings formed on AgNPs-decorated titanium
复制标题
AgNPs 修饰的钛上形成的壳聚糖/聚（4-乙烯基吡啶）涂层
DOI：
10.1016/j.matlet.2022.132293
复制
发表时间：
2022
影响因子：
3
通讯作者：
A. Zieliński
中科院分区：
文献类型：
--
作者：
Łukasz Pawłowski;M. Bartmański;A. Mielewczyk‐Gryń;A. Zieliński
研究了不同P4VP含量和不同电压下，壳聚糖/聚(4-乙烯基吡啶)(CHIT/P4VP)涂层在预涂有纳米银(AgNPs)的钛表面的电泳法。结果表明，复合涂层与钛基材紧密相连，具有良好的粗糙度、亲水性和耐腐蚀性。由于工艺参数对涂层组织和附着力的影响，电压值和P4VP含量对涂层性能有复杂的影响。壳聚糖和P4VP在10V、0.1%(w/w)的条件下沉积1min即可形成最佳涂层。根据目前的结果，这些pH敏感的抗菌涂层可能被推荐用于钛植入物的表面改性。
Electrophoretic deposition (EPD) of chitosan/poly(4-vinylpyridine) (chit/P4VP) coatings on titanium substrates previously decorated with silver nanoparticles (AgNPs) was performed at different content of P4VP in the suspension and different voltage values. The results revealed that the composite coatings were formed, well-adjacent to the titanium substrate, of suitable roughness, hydrophilicity, and corrosion resistance. The voltage value and P4VP content had complex effects on coating properties, due to the effects of process parameters on microstructure and adhesion. The best coatings of both chitosan and P4VP were formed at 10 V at 0.1% (w/w) during a one-minute deposition. These pH-sensitive antibacterial coatings may, based on the present results, be recommended for surface modification of titanium implants.