Marques Sandra M, Carvalho Isabel, Leite Teófilo R, Henriques Mariana, Carvalho Sandra
CFUM-UP, Physics Department, University of Minho, 4800-058 Guimarães, Portugal.
CEB, Centre of Biological Engineering, LIBRO-Laboratório de Investigação em Biofilmes Rosário Oliveira, Campus of Gualtar, University of Minho, 4710-057 Braga, Portugal.
Materials (Basel). 2022 Mar 8;15(6):2009. doi: 10.3390/ma15062009.
This work reports on TiN-Ag antimicrobial coatings deposited by d.c. magnetron sputtering on leather used for insoles on the footwear industry, studies involving the antimicrobial properties of Ag-based functionalized leathers by sputtering techniques are shown. The X-ray diffraction (XRD) results suggested the presence of crystalline fcc-TiN phase for the sample without silver, and also a fcc-Ag phase in the samples containing silver. According to the Scanning Electron Microscopy (SEM) analysis, the coatings were homogeneous and dispersed Ag clusters were detected on the surface of samples with silver content above 8 at. %. The Inductively coupled plasma-optical emission spectrometry (ICP-OES) analysis showed that the ionization of silver over time depends on the morphology of the coatings. The samples did not present cytotoxicity and only samples with incorporated silver presented antibacterial and antifungal activity, highlighting the potential of the TiN-Ag insole coatings for diseases such as diabetic foot.
这项工作报道了通过直流磁控溅射在制鞋业用于鞋垫的皮革上沉积的TiN-Ag抗菌涂层，展示了通过溅射技术对基于银的功能化皮革抗菌性能的研究。X射线衍射（XRD）结果表明，不含银的样品中存在结晶的面心立方TiN相，而含银样品中也存在面心立方Ag相。根据扫描电子显微镜（SEM）分析，涂层是均匀的，并且在银含量高于8原子%的样品表面检测到了分散的银簇。电感耦合等离子体发射光谱（ICP-OES）分析表明，银随时间的电离取决于涂层的形态。样品没有表现出细胞毒性，只有掺入银的样品表现出抗菌和抗真菌活性，突出了TiN-Ag鞋垫涂层对糖尿病足等疾病的潜在作用。
