硅纳米针阵列抗菌材料的制备及其抗菌性能研究

Preparation and antibacterial properties of silicon antibacterial material with nanoneedle arrays

本文以简易经济的金属辅助化学刻蚀技术制备了具有高效杀菌性能的硅纳米抗菌材料并研究其形貌与结构,以大肠杆菌和金黄色葡萄球菌为代表菌株,研究了纳米针抗菌材料的抗菌活性。实验证明,该抗菌材料对在其表面培养3 h的大肠杆菌和金黄色葡萄球菌的杀菌效率分别为85.12%,76.40%,表明该材料对革兰氏阳性和革兰氏阴性菌均有高的杀菌效果,所制备的抗菌材料有望为医疗卫生系统在抵抗细菌污染方面提供解决方案。

Silicon nano-needle arrays antimicrobial material with high bactericidal properties were prepared by simple and economical metal-assisted chemical etching and its morphology and structure were studied. The antibacterial properties of silicon nanoneedle arrays were investigated by the viability of Escherichia coli and Staphylococcus aureus. The bactericidal efficiencies of the antimicrobial materials on Escherichia coli and Staphylococcus aureus were 85. 12% and 76. 40%,respectively,indicating that the materials had high bactericidal effects against both tested Gram-positive and Gramnegative bacteria. This fabricated antimicrobial material was expected to provide a solution for the medical and health care system against bacterial pollution.