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Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites

Silver nanoparticles (Ag-NPs) were successfully synthesized into the interlayer space of Montmorillonite (MMT) by chemical reduction method. AgNO3 and NaBH4 were used as a silver precursor and reducing agent, respectively. The properties of Ag/MMT nanocomposites were studied as a function of the AgN...

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Main Authors:	Ahmad, Mansor, Shameli, Kamyar, Darroudi, Majid, Wan Yunus, Wan Md. Zin, Ibrahim, Nor Azowa, Abdul Hamid, Azizah, Zargar, Mohsen
Format:	Article
Language:	English English
Published:	Medwell Publishing 2009
Subjects:	Nanoparticles - Synthesis Montmorillonite Nanocomposites (Materials) - Properties
Online Access:	http://psasir.upm.edu.my/id/eprint/16918/1/Synthesis%20and%20cntibacterial%20activity%20of%20silver.pdf
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id	oai:psasir.upm.edu.my:16918
record_format	eprints
spelling	oai:psasir.upm.edu.my:16918 http://psasir.upm.edu.my/id/eprint/16918/ Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites Ahmad, Mansor Shameli, Kamyar Darroudi, Majid Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Abdul Hamid, Azizah Zargar, Mohsen Silver nanoparticles (Ag-NPs) were successfully synthesized into the interlayer space of Montmorillonite (MMT) by chemical reduction method. AgNO3 and NaBH4 were used as a silver precursor and reducing agent, respectively. The properties of Ag/MMT nanocomposites were studied as a function of the AgNO3 concentration. The UV-vis spectra of synthesized Ag-NPs showed that the intensity of the maximum wavelength of the plasmon peaks increased with increasing AgNO3 concentration. The crystalline structure of the Ag-NPs and basal spacing of MMT and Ag/MMT were also studied by Powder X-Ray Diffraction (PXRD). The antibacterial activity of Ag-NPs was investigated against gram-negative bacteria (Escherichia coli, Escherichia coli O157:H7 and K. pneumonia) and gram-positive bacterium (Staphylococcus aureus) by disk diffusion method using Muller-Hinton Agar (MHA) at different sizes of Ag-NPs. The smaller Ag-NPs were found to have significantly higher antibacterial activity. These results showed that Ag-NPs can be used as effective growth inhibitors in different biological systems, making them applicable to medical applications such as in surgical devices. Medwell Publishing 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16918/1/Synthesis%20and%20cntibacterial%20activity%20of%20silver.pdf Ahmad, Mansor and Shameli, Kamyar and Darroudi, Majid and Wan Yunus, Wan Md. Zin and Ibrahim, Nor Azowa and Abdul Hamid, Azizah and Zargar, Mohsen (2009) Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites. Research Journal of Biological Sciences, 4 (9). pp. 1032-1036. ISSN 1815-8846 http://www.cabdirect.org/ Nanoparticles - Synthesis Montmorillonite Nanocomposites (Materials) - Properties English
institution	UPM IR
collection	UPM IR
language	English English
topic	Nanoparticles - Synthesis Montmorillonite Nanocomposites (Materials) - Properties
spellingShingle	Nanoparticles - Synthesis Montmorillonite Nanocomposites (Materials) - Properties Ahmad, Mansor Shameli, Kamyar Darroudi, Majid Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Abdul Hamid, Azizah Zargar, Mohsen Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
description	Silver nanoparticles (Ag-NPs) were successfully synthesized into the interlayer space of Montmorillonite (MMT) by chemical reduction method. AgNO3 and NaBH4 were used as a silver precursor and reducing agent, respectively. The properties of Ag/MMT nanocomposites were studied as a function of the AgNO3 concentration. The UV-vis spectra of synthesized Ag-NPs showed that the intensity of the maximum wavelength of the plasmon peaks increased with increasing AgNO3 concentration. The crystalline structure of the Ag-NPs and basal spacing of MMT and Ag/MMT were also studied by Powder X-Ray Diffraction (PXRD). The antibacterial activity of Ag-NPs was investigated against gram-negative bacteria (Escherichia coli, Escherichia coli O157:H7 and K. pneumonia) and gram-positive bacterium (Staphylococcus aureus) by disk diffusion method using Muller-Hinton Agar (MHA) at different sizes of Ag-NPs. The smaller Ag-NPs were found to have significantly higher antibacterial activity. These results showed that Ag-NPs can be used as effective growth inhibitors in different biological systems, making them applicable to medical applications such as in surgical devices.
format	Article
author	Ahmad, Mansor Shameli, Kamyar Darroudi, Majid Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Abdul Hamid, Azizah Zargar, Mohsen
author_facet	Ahmad, Mansor Shameli, Kamyar Darroudi, Majid Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Abdul Hamid, Azizah Zargar, Mohsen
author_sort	Ahmad, Mansor
title	Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
title_short	Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
title_full	Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
title_fullStr	Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
title_full_unstemmed	Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
title_sort	synthesis and cntibacterial activity of silver/montmorillonite nanocomposites
publisher	Medwell Publishing
publishDate	2009
url	http://psasir.upm.edu.my/id/eprint/16918/1/Synthesis%20and%20cntibacterial%20activity%20of%20silver.pdf
_version_	1819294080752943104
score	13.4562235

Synthesis and cntibacterial activity of silver/montmorillonite nanocomposites

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