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Materials 2016, 9(7), 528; doi:10.3390/ma9070528

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

1
Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Yukori Yuz, Kybray District 111226, Uzbekistan
2
Key Laboratory of Plant Resources and Chemistry in Arid Region, Xinjiang Technical Institute of Chemistry and Physics, Chinese Academy of Sciences, Urumqi 830011, China
3
University of Chinese Academy of Sciences, Beijing 100039, China
4
Institute of Microbiology, Uzbekistan Academy of Sciences, Tashkent 100128, Uzbekistan
*
Author to whom correspondence should be addressed.
Academic Editor: Mauro Pollini
Received: 24 March 2016 / Revised: 22 June 2016 / Accepted: 25 June 2016 / Published: 29 June 2016
(This article belongs to the Special Issue Advances and Applications of Nano-antimicrobial Treatments)
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Abstract

A simple and green method was developed for the biosynthesis of AgCl nanoparticles, free from Ag nanoparticles, using the exopolysaccharide-based bioflocculant of nitrogen fixing Azotobacter chroococcum XU1 strain. AgCl nanoparticles were characterized by UV-Vis, X-ray diffraction (XRD), Fourier Transform-Infra Red (FT-IR) and Scanning electron microscopy-energy dispersive X-ray (SEM-EDX). The concentration-dependent and controllable method for the synthesis of AgCl nanoparticles of a certain size and morphology was developed. As-synthesized AgCl nanoparticles were characterized bya high content of AgCl and exhibited strong antimicrobial activity towards pathogenic microorganisms such as E. coli, S. aureus and C. albicans. The biofabricated AgCl nanoparticles can be exploited as a promising new biocidalbionanocomposite against pathogenic microorganisms. View Full-Text
Keywords: exopolysaccharide-based bioflocculant; AgCl nanoparticles; Azotobacter chroococcum; antimicrobial activity exopolysaccharide-based bioflocculant; AgCl nanoparticles; Azotobacter chroococcum; antimicrobial activity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Rasulov, B.A.; Rozi, P.; Pattaeva, M.A.; Yili, A.; Aisa, H.A. Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial. Materials 2016, 9, 528.

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