Green synthesis of silver, gold and silver/gold bimetallic nanoparticles using the Gloriosa superba leaf extract and their antibacterial and antibiofilm activities

被引：169

作者：

Gopinath, Kasi ^{[1
]}

Kumaraguru, Shanmugasundaram ^{[2
]}

Bhakyaraj, Kasi ^{[2
]}

Mohan, Subramanian ^{[2
]}

Venkatesh, Kunga Sukumaran ^{[3
]}

Esakkirajan, Masanam ^{[4
]}

Kaleeswarran, Periyannan ^{[1
]}

Alharbi, Naiyf S. ^{[5
]}

Kadaikunnan, Shine ^{[5
]}

Govindarajan, Marimuthu ^{[6
]}

Benelli, Giovanni ^{[7
]}

Arumugam, Ayyakannu ^{[8
]}

机构：

[1] Alagappa Univ, Dept Nanosci & Technol, Karaikkudi 630003, Tamil Nadu, India

[2] CSIR Cent Electrochem Res Inst, EMFT Div, Karaikkudi 630003, Tamil Nadu, India

[3] Kalasalingam Univ, Int Res Ctr, Dept Phys, Multifunct Mat Lab, Krishnankoil 626126, Tamil Nadu, India

[4] Alagappa Univ, Dept Anim Hlth & Management, Karaikkudi 630003, Tamil Nadu, India

[5] King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11451, Saudi Arabia

[6] Annamalai Univ, Dept Zool, Unit Vector Control Phytochem & Nanotechnol, Annamalainagar 608002, Tamil Nadu, India

[7] Univ Pisa, Dept Agr Food & Environm, Via Borghetto 80, I-56124 Pisa, Italy

[8] Alagappa Univ, Dept Bot, Karaikkudi 630003, Tamil Nadu, India

来源：

MICROBIAL PATHOGENESIS | 2016年 / 101卷

关键词：

Biofabrication; Biosafety; Gloriosa superba; Nanotechnology; Surface plasmon resonance; ANTIMICROBIAL ACTIVITY; MEDIATED SYNTHESIS; ESCHERICHIA-COLI; BIOFILM; BIOSYNTHESIS; AU; AG;

D O I：

10.1016/j.micpath.2016.10.011

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

The green fabrication of metal nanoparticles using botanical extracts is gaining increasing research attention in nanotechnology, since it does not require high energy inputs or the production of highly toxic chemical byproducts. Here, silver (Ag), gold (Au) and their bimetallic (Ag/Au) nanoparticles (NPs) were green synthesized using the Gloriosa superba aqueous leaf extract. Metal NPs were studied by spectroscopic (UV visible spectroscopy, fluorescence spectroscopy, FT-IR spectroscopy, XRD and EDX) and microscopic (AFM and TEM) analysis. AFM and TEM showed that Ag and Au NPs had triangular and spherical morphologies, with an average size of 20 nm. Bimetallic Ag/Au NPs showed spherical shapes with an average size of 10 nm. Ag and Ag/Au bimetallic NPs showed high antibacterial and antibiofilm activities towards Gram-positive and Gram-negative bacteria. Overall, the proposed synthesis route of Ag, Au and Ag/Au bimetallic NPs can be exploited by the pharmaceutical industry to develop drugs effective in the fight against microbic infections. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1 / 11

页数：11

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