抗菌剂
生物相容性
木质素
化学
纳米颗粒
纳米复合材料
金黄色葡萄球菌
银纳米粒子
抗菌活性
胶体金
生物膜
贵金属
金属
核化学
纳米技术
细菌
材料科学
有机化学
生物
遗传学
作者
Diamela María Rocca,Julie P. Vanegas,Kelsey Fournier,María Cecilia Becerra,Juan C. Scaiano,Anabel E. Lanterna
出处
期刊:RSC Advances
[The Royal Society of Chemistry]
日期:2018-01-01
卷期号:8 (70): 40454-40463
被引量:45
摘要
One-pot thermal and photochemical syntheses of lignin-doped silver and gold nanoparticles were developed and their antimicrobial properties were studied against Escherichia coli and Staphylococcus aureus. The nature of the lignin as well as the metal are directly involved in the antimicrobial activity observed in these nanocomposites. Whereas one of the nanocomposites is innocuous under dark conditions and shows photoinduced activity only against Staphylococcus aureus, the rest of the lignin-coated silver nanoparticles studied show antimicrobial activity under dark and light conditions for both bacteria strains. Additionally, only photoinduced activity is observed for lignin-coated gold nanoparticles. Importantly, the particles are non-cytotoxic towards human cells at the bactericidal concentrations. Preliminary assays show these silver nanoparticles as potential antimicrobial agents towards S. aureus biofilm eradication.
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