Antimicrobial Potential of Silver Nanoparticles Synthesized Using Medicinal Herb Coptidis rhizome

被引：0

作者：

Sharma, Garima ^{[1
]}

Nam, Ju-Suk ^{[1
]}

Sharma, Ashish Ranjan ^{[1
]}

Lee, Sang-Soo ^{[1
]}

机构：

[1] Hallym Univ, Chuncheon Sacred Heart Hosp, Inst Skeletal Aging & Orthoped Surg, Chuncheon Si 24252, Gangwon Do, South Korea

来源：

MOLECULES | 2018年 / 23卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

silver nanoparticles; Coptidis rhizome; antibacterial; biosynthesis; METAL NANOPARTICLES; GREEN SYNTHESIS; LEAF EXTRACT; BIOSYNTHESIS; SIZE; SPECTROSCOPY; GENERATION; SHAPE;

D O I：

10.3390/molecules23092268

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Coptidis rhizome contains several alkaloids that are bioactive agents of therapeutic value. We propose an eco-friendly method to synthesize biocompatible silver nanoparticles (AgNPs) using the aqueous extract of Coptidis rhizome. Silver ions were reduced to AgNPs using the aqueous extract of Coptidis rhizome, indicating that Coptidis rhizome can be used for the biosynthesis of AgNPs. The time and the concentration required for conversion of silver ions into AgNPs was optimized using UV-absorbance spectroscopy and inductively coupled plasma spectroscopy (ICP). Biosynthesized AgNPs showed a distinct UV-Visible absorption peak at 420 nm. ICP analysis showed that the time required for the completion of biosynthesis was around 20 min. Microscopic images showed that nanoparticles synthesized were of spherical shape and the average diameter of biosynthesized AgNPs was less than 30 nm. XRD analysis also confirmed the size of AgNps and revealed their crystalline nature. The interaction of AgNPs with phytochemicals present in Coptidis rhizome extract was observed in FTIR analysis. The antimicrobial property of AgNPs was evaluated using turbidity measurements. Coptidis rhizome-mediated biosynthesized AgNPs showed significant anti-bacterial activities against Escherichia coli and Staphylococcus aureus that are commonly involved in various types of infections, indicating their potential as an effective anti-bacterial agent.

引用

页数：12

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