Biosynthesis of silver nanoparticle from leaf extract of Desmodium gangeticum (L.) DC. and its biomedical potential

被引：111

作者：

Thirunavoukkarasu, M. ^{[1
]}

Balaji, U. ^{[1
]}

Behera, S. ^{[1
]}

Panda, P. K. ^{[1
]}

Mishra, B. K. ^{[1
]}

机构：

[1] CSIR Inst Minerals & Mat Technol, Bioresources Engn Dept, Bhubaneswar 751013, Orissa, India

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2013年 / 116卷

关键词：

Desmodium ganeticum; Silver nanoparticles; UV-spectral analysis; Antibacterial activity;

D O I：

10.1016/j.saa.2013.07.033

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

An aqueous leaf extract of Desmodium gangeticum was employed to synthesize silver nano particles. Rapid formation of stable silver nanoparticles were observed on exposure of the aqueous leaf extract with solution of silver nitrate. The silver nanoparticles were characterized by UV-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and transmission electron microscopy (TEM), and Fourier Transform Infra-Red spectroscopy (FTIR) UV-visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), transmission electron microscopy (TEM), and Fourier Transform Infra-Red spectroscopy (FTIR). UV-visible spectrum of the aqueous medium peaked at 450 nm corresponding to the plasmon absorbance of silver nanoparticles. SEM analysis revealed the spherical shape of the particles with sizes ranging from 18 to 39 nm and the EDAX spectrum confirmed the presence of silver along with other elements in the plant metabolite. Further, these biologically synthesized nanoparticles were found to be highly toxic against pathogenic bacteria Escherichia coli, thus implying significance of the present study in production of biomedical products. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：424 / 427

页数：4

共 21 条

[11] Preparation and antibacterial activity of Fe3O4@Ag nanoparticles [J].

Gong, Ping ;

Li, Huimin ;

He, Xiaoxiao ;

Wang, Kemin ;

Hu, Jianbing ;

Tan, Weihong ;

Zhang, Shouchun ;

Yang, Xiaohai .

NANOTECHNOLOGY, 2007, 18 (28)

[12]

Govindarajan Raghavan, 2006, Acta Pharmaceutica (Zagreb), V56, P489

[13]

Kiritikar K. R., 1975, INDIAN MED PLANTS, V3

[14] SERS studies on the structure of thioglycolic acid monolayers on silver and gold [J].

Królikowska, A ;

Kudelski, A ;

Michota, A ;

Bukowska, J .

SURFACE SCIENCE, 2003, 532 :227-232

[15]

Kurup P.N.V., 1979, HDB MED PLANTS

[16] Surface states induced photoluminescence from Mn2+ doped CdS nanoparticles [J].

Liu, SM ;

Liu, FQ ;

Guo, HQ ;

Zhang, ZH ;

Wang, ZG .

SOLID STATE COMMUNICATIONS, 2000, 115 (11) :615-618

[17] Glycolipids and other constituents from Desmodium gangeticum with antileishmanial and immunomodulatory activities [J].

Mishra, PK ;

Singh, N ;

Ahmad, G ;

Dube, A ;

Maurya, R .

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 2005, 15 (20) :4543-4546

[18] Silver nanoparticles as a new generation of antimicrobials [J].

Rai, Mahendra ;

Yadav, Alka ;

Gade, Aniket .

BIOTECHNOLOGY ADVANCES, 2009, 27 (01) :76-83

[19] Microbial synthesis and the characterization of metal-substituted magnetites [J].

Roh, Y ;

Lauf, RJ ;

McMillan, AD ;

Zhang, C ;

Rawn, CJ ;

Bai, J ;

Phelps, TJ .

SOLID STATE COMMUNICATIONS, 2001, 118 (10) :529-534

[20] Geranium leaf assisted biosynthesis of silver nanoparticles [J].

Shankar, SS ;

Ahmad, A ;

Sastry, M .

BIOTECHNOLOGY PROGRESS, 2003, 19 (06) :1627-1631

← 1 2 3 →