Anti-Bacterial and Anti-Candidal Activity of Silver Nanoparticles Biosynthesized Using Citrobacter spp. MS5 Culture Supernatant

被引：20
|
作者：
Mondal, Aftab Hossain [1 ]
Yadav, Dhananjay [2 ]
Ali, Asghar [1 ]
Khan, Neelofar [1 ]
Jin, Jun O. [2 ,3 ]
Haq, Qazi Mohd Rizwanul [1 ]
机构：
[1] Jamia Millia Islamia, Dept Biosci, New Delhi 110025, India
[2] Yeungnam Univ, Dept Med Biotechnol, Gyongsan 712749, South Korea
[3] Yeungnam Univ, Res Inst Cell Culture, Gyongsan 38541, South Korea
来源：
BIOMOLECULES | 2020年 / 10卷 / 06期
关键词：
silver nanoparticles; Citrobacter spp. MS5; Gram-negative bacteria; antibacterial; antifungal; GREEN SYNTHESIS; BIOLOGICAL SYNTHESIS; ANTIFUNGAL ACTIVITY; ANTIBIOTICS; MECHANISM; BACTERIA; FILTRATE; EXTRACT;
D O I：
10.3390/biom10060944
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：
The present study described the extracellular synthesis of silver nanoparticles (AgNPs) using environmental bacterial isolate Citrobacter spp. MS5 culture supernatant. To our best knowledge, no previous study reported the biosynthesis of AgNPs using this bacterial isolate. The biosynthesized AgNPs were characterized using different techniques like UV-Vis spectroscopy, fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) equipped with energy dispersive X-ray (EDX). The analysis of UV-Vis spectra revealed absorption maxima at 415 nm due to surface plasmon resonance (SPR) indicated the formation of AgNPs and FTIR spectrum confirmed the participation of proteins molecule in AgNPs synthesis. XRD and EDX spectrum confirmed the metallic and crystalline nature of AgNPs. TEM and SEM showed spherical nanoparticles with a size range of 5-15 nm. The biosynthesized AgNPs showed effective independent as well as enhanced combined antibacterial activity against extended spectrum beta-lactamase (ESBL) producing multidrug resistant Gram-negative bacteria. Further, effective antifungal activity of AgNPs was observed towards pathogenic Candida spp. The present study provides evidence for eco-friendly biosynthesis of well-characterized AgNPs and their potential antibacterial as well as antifungal activity.
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页码：1 / 15
页数：15
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