Biocompatibility and photo-induced antibacterial activity of lignin-stabilized noble metal nanoparticles

被引：47
|
作者：
Maria Rocca, Diamela [1 ,2 ,3 ]
Vanegas, Julie P. [1 ,2 ,4 ]
Fournier, Kelsey [1 ,2 ]
Cecilia Becerra, M. [3 ]
Scaiano, Juan C. [1 ,2 ]
Lanterna, Anabel E. [1 ,2 ]
机构：
[1] Univ Ottawa, Dept Chem & Biomol Sci, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
[2] Univ Ottawa, Ctr Adv Mat Res CAMaR, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
[3] Univ Nacl Cordoba, Fac Ciencias Quim, Dept Ciencias Farmaceut, Haya Torre S-N, Cordoba, Argentina
[4] Kent State Univ, Inst Liquid Crystal, 1425 . Esplanade, Kent, OH 44242 USA
来源：
RSC ADVANCES | 2018年 / 8卷 / 70期
基金：
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词：
SEED-MEDIATED GROWTH; GOLD NANOPARTICLES; SILVER; NANOSTRUCTURES; MECHANISMS; STRATEGIES; CAPACITY; THERAPY;
D O I：
10.1039/c8ra08169g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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.
引用
收藏
页码：40454 / 40463
页数：10
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