Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity

Kamyar Shameli1, Mansor Bin Ahmad1, Mohsen Zargar3, Wan Md Zin Wan Yunus1, Nor Azowa Ibrahim1, Parvaneh Shabanzadeh2, Mansour Ghaffari Moghaddam41Department of Chemistry, Faculty of Science, 2Institute for Mathematical Research, Universiti Putra Malaysia, Selangor, Malaysia; 3Department of Biology,...

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Autores principales:	Kamyar Shameli, Mansor Bin Ahmad, Mohsen Zargar, et al
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/5c2d3e21c9ab492187d893976d2935da
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spelling	oai:doaj.org-article:5c2d3e21c9ab492187d893976d2935da2021-12-02T05:55:47ZSynthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity1176-91141178-2013https://doaj.org/article/5c2d3e21c9ab492187d893976d2935da2011-01-01T00:00:00Zhttp://www.dovepress.com/synthesis-and-characterization-of-silvermontmorillonitechitosan-bionan-a6160https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013Kamyar Shameli1, Mansor Bin Ahmad1, Mohsen Zargar3, Wan Md Zin Wan Yunus1, Nor Azowa Ibrahim1, Parvaneh Shabanzadeh2, Mansour Ghaffari Moghaddam41Department of Chemistry, Faculty of Science, 2Institute for Mathematical Research, Universiti Putra Malaysia, Selangor, Malaysia; 3Department of Biology, Islamic Azad University, Qum, Iran; 4Department of Chemistry, Faculty of Science, University of Zabol, Zabol, IranAbstract: Silver nanoparticles (AgNPs) of a small size were successfully synthesized using the wet chemical reduction method into the lamellar space layer of montmorillonite/chitosan (MMT/Cts) as an organomodified mineral solid support in the absence of any heat treatment. AgNO3, MMT, Cts, and NaBH4 were used as the silver precursor, the solid support, the natural polymeric stabilizer, and the chemical reduction agent, respectively. MMT was suspended in aqueous AgNO3/Cts solution. The interlamellar space limits were changed (d-spacing = 1.24&ndash;1.54 nm); therefore, AgNPs formed on the interlayer and external surface of MMT/Cts with d-average = 6.28&ndash;9.84 nm diameter. Characterizations were done using different methods, ie, ultraviolet-visible spectroscopy, powder X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray fluorescence spectrometry, and Fourier transform infrared spectroscopy. Silver/montmorillonite/chitosan bionanocomposite (Ag/MMT/Cts BNC) systems were examined. The antibacterial activity of AgNPs in MMT/Cts was investigated against Gram-positive bacteria, ie, Staphylococcus aureus and methicillin-resistant S. aureus and Gram-negative bacteria, ie, Escherichia coli, E. coli O157:H7, and Pseudomonas aeruginosa by the disc diffusion method using Mueller Hinton agar at different sizes of AgNPs. All of the synthesized Ag/MMT/Cts BNCs were found to have high antibacterial activity. These results show that Ag/MMT/Cts BNCs can be useful in different biological research and biomedical applications, including surgical devices and drug delivery vehicles.Keywords: silver nanoparticles, bionanocomposites, montmorillonite, chitosan, antibacterial activity, Mueller Hinton agar Kamyar ShameliMansor Bin AhmadMohsen Zargaret alDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2011, Iss default, Pp 271-284 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Kamyar Shameli Mansor Bin Ahmad Mohsen Zargar et al Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
description	Kamyar Shameli1, Mansor Bin Ahmad1, Mohsen Zargar3, Wan Md Zin Wan Yunus1, Nor Azowa Ibrahim1, Parvaneh Shabanzadeh2, Mansour Ghaffari Moghaddam41Department of Chemistry, Faculty of Science, 2Institute for Mathematical Research, Universiti Putra Malaysia, Selangor, Malaysia; 3Department of Biology, Islamic Azad University, Qum, Iran; 4Department of Chemistry, Faculty of Science, University of Zabol, Zabol, IranAbstract: Silver nanoparticles (AgNPs) of a small size were successfully synthesized using the wet chemical reduction method into the lamellar space layer of montmorillonite/chitosan (MMT/Cts) as an organomodified mineral solid support in the absence of any heat treatment. AgNO3, MMT, Cts, and NaBH4 were used as the silver precursor, the solid support, the natural polymeric stabilizer, and the chemical reduction agent, respectively. MMT was suspended in aqueous AgNO3/Cts solution. The interlamellar space limits were changed (d-spacing = 1.24&ndash;1.54 nm); therefore, AgNPs formed on the interlayer and external surface of MMT/Cts with d-average = 6.28&ndash;9.84 nm diameter. Characterizations were done using different methods, ie, ultraviolet-visible spectroscopy, powder X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray fluorescence spectrometry, and Fourier transform infrared spectroscopy. Silver/montmorillonite/chitosan bionanocomposite (Ag/MMT/Cts BNC) systems were examined. The antibacterial activity of AgNPs in MMT/Cts was investigated against Gram-positive bacteria, ie, Staphylococcus aureus and methicillin-resistant S. aureus and Gram-negative bacteria, ie, Escherichia coli, E. coli O157:H7, and Pseudomonas aeruginosa by the disc diffusion method using Mueller Hinton agar at different sizes of AgNPs. All of the synthesized Ag/MMT/Cts BNCs were found to have high antibacterial activity. These results show that Ag/MMT/Cts BNCs can be useful in different biological research and biomedical applications, including surgical devices and drug delivery vehicles.Keywords: silver nanoparticles, bionanocomposites, montmorillonite, chitosan, antibacterial activity, Mueller Hinton agar
format	article
author	Kamyar Shameli Mansor Bin Ahmad Mohsen Zargar et al
author_facet	Kamyar Shameli Mansor Bin Ahmad Mohsen Zargar et al
author_sort	Kamyar Shameli
title	Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
title_short	Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
title_full	Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
title_fullStr	Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
title_full_unstemmed	Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
title_sort	synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/5c2d3e21c9ab492187d893976d2935da
work_keys_str_mv	AT kamyarshameli synthesisandcharacterizationofsilvermontmorillonitechitosanbionanocompositesbychemicalreductionmethodandtheirantibacterialactivity AT mansorbinahmad synthesisandcharacterizationofsilvermontmorillonitechitosanbionanocompositesbychemicalreductionmethodandtheirantibacterialactivity AT mohsenzargar synthesisandcharacterizationofsilvermontmorillonitechitosanbionanocompositesbychemicalreductionmethodandtheirantibacterialactivity AT etal synthesisandcharacterizationofsilvermontmorillonitechitosanbionanocompositesbychemicalreductionmethodandtheirantibacterialactivity
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Synthesis and characterization of silver/montmorillonite/chitosan bionanocomposites by chemical reduction method and their antibacterial activity

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