First report of biomimetic synthesis of silver nanoparticles using aqueous callus extract of Centella asiatica and their antimicrobial activity

被引：60

作者：

Netala, Vasudeva Reddy ^{[1
]}

Kotakadi, Venkata Subbaiah ^{[2
]}

Nagam, Venkateswarlu ^{[3
]}

Bobbu, Pushpalatha ^{[1
]}

Ghosh, Sukhendu Bikash ^{[4
]}

Tartte, Vijaya ^{[3
]}

机构：

[1] Sri Venkateswara Univ, Dept Biotechnol, Tirupati 517502, Andhra Pradesh, India

[2] Sri Venkateswara Univ, DST PURSE Ctr, Tirupati 517502, Andhra Pradesh, India

[3] Sri Venkateswara Univ, Dept Bot, Tirupati 517502, Andhra Pradesh, India

[4] BARC, NABTD, Board Res Nucl Sci, Bombay 400085, Maharashtra, India

来源：

APPLIED NANOSCIENCE | 2015年 / 5卷 / 07期

关键词：

Biomimetic; Nanoparticles; FTIR; TEM; XRD; Antimicrobial activity; GREEN SYNTHESIS; OPTICAL-PROPERTIES; LEAF EXTRACT; BIOSYNTHESIS; L;

D O I：

10.1007/s13204-014-0374-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present study reports the simple and eco-friendly approach for biosynthesis of silver nanoparticles (AgNPs) using aqueous callus extract as reducing agent for the first time. The formation of AgNPs was initially confirmed by characteristic surface plasmon resonance (SPR) peak 453 nm by UV-Visible spectroscopy. FTIR spectrum shows different functional groups which probably involved in the synthesis and stabilization of AgNPs. TEM analysis determined the well-dispersed AgNPs with roughly spherical shape and size ranging 5-40 nm. XRD patterns revealed the crystalline nature of AgNPs with face-centered cubic (fcc) lattice. The synthesized AgNPs were found to have strong inhibitory activity against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa.

引用

页码：801 / 807

页数：7

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