Green synthesis of ag nanoparticles and their performance towards antimicrobial properties

Green synthesis is a forthcoming trend in the nanotechnology field where classical methods of synthesis are now replaced by inexpensive and eco-friendly methods. In this study, a green method has been developed for the synthesis of silver nanoparticles (AgNPs) where AgNPs were synthesised using wate...

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Main Authors:	Sunderishwary S Muniandy, S Sasidharan, Hooi, Ling Lee
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13388/ http://journalarticle.ukm.my/13388/ http://journalarticle.ukm.my/13388/1/17%20Sunderishwary%20S%20Muniandy.pdf

id	ukm-13388
recordtype	eprints
spelling	ukm-133882019-09-20T23:13:21Z http://journalarticle.ukm.my/13388/ Green synthesis of ag nanoparticles and their performance towards antimicrobial properties Sunderishwary S Muniandy, S Sasidharan, Hooi, Ling Lee Green synthesis is a forthcoming trend in the nanotechnology field where classical methods of synthesis are now replaced by inexpensive and eco-friendly methods. In this study, a green method has been developed for the synthesis of silver nanoparticles (AgNPs) where AgNPs were synthesised using water-based facile hydrothermal method. Silver nitrate (AgNO3) and polyvinylpyrrolidone (PVP) were used as precursor and reducing agents to produce AgNPs. The molar ratio effect of the precursor and stabiliser, its reaction temperature and reaction time were investigated. X-ray Powder Diffraction (XRD), Field-Emission Scanning Electron Microscope (FESEM) and UV-Vis Spectrometry were used to characterise the AgNPs. The as-synthesized AgNPs with different molar ratios of the precursor to stabiliser were tested for antibacterial activities using Gram-positive bacteria (Bacillus subtilis) and Gram-negative bacteria (Escherichia coli). All the AgNPs samples exhibited antibacterial activities that were stronger against Gram-negative bacteria, as compared with Gram-positive bacteria. The diameter of the zone of inhibition (ZOI) increased with the increase of the AgNO3: PVP molar ratios. The results obtained proved that uniform AgNPs synthesized via green techniques have a high potential of influencing applications involving antimicrobial properties. Penerbit Universiti Kebangsaan Malaysia 2019-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13388/1/17%20Sunderishwary%20S%20Muniandy.pdf Sunderishwary S Muniandy, and S Sasidharan, and Hooi, Ling Lee (2019) Green synthesis of ag nanoparticles and their performance towards antimicrobial properties. Sains Malaysiana, 48 (4). pp. 851-860. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil4_2019/KandunganJilid48Bil4_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Green synthesis is a forthcoming trend in the nanotechnology field where classical methods of synthesis are now replaced by inexpensive and eco-friendly methods. In this study, a green method has been developed for the synthesis of silver nanoparticles (AgNPs) where AgNPs were synthesised using water-based facile hydrothermal method. Silver nitrate (AgNO3) and polyvinylpyrrolidone (PVP) were used as precursor and reducing agents to produce AgNPs. The molar ratio effect of the precursor and stabiliser, its reaction temperature and reaction time were investigated. X-ray Powder Diffraction (XRD), Field-Emission Scanning Electron Microscope (FESEM) and UV-Vis Spectrometry were used to characterise the AgNPs. The as-synthesized AgNPs with different molar ratios of the precursor to stabiliser were tested for antibacterial activities using Gram-positive bacteria (Bacillus subtilis) and Gram-negative bacteria (Escherichia coli). All the AgNPs samples exhibited antibacterial activities that were stronger against Gram-negative bacteria, as compared with Gram-positive bacteria. The diameter of the zone of inhibition (ZOI) increased with the increase of the AgNO3: PVP molar ratios. The results obtained proved that uniform AgNPs synthesized via green techniques have a high potential of influencing applications involving antimicrobial properties.
format	Article
author	Sunderishwary S Muniandy, S Sasidharan, Hooi, Ling Lee
spellingShingle	Sunderishwary S Muniandy, S Sasidharan, Hooi, Ling Lee Green synthesis of ag nanoparticles and their performance towards antimicrobial properties
author_facet	Sunderishwary S Muniandy, S Sasidharan, Hooi, Ling Lee
author_sort	Sunderishwary S Muniandy,
title	Green synthesis of ag nanoparticles and their performance towards antimicrobial properties
title_short	Green synthesis of ag nanoparticles and their performance towards antimicrobial properties
title_full	Green synthesis of ag nanoparticles and their performance towards antimicrobial properties
title_fullStr	Green synthesis of ag nanoparticles and their performance towards antimicrobial properties
title_full_unstemmed	Green synthesis of ag nanoparticles and their performance towards antimicrobial properties
title_sort	green synthesis of ag nanoparticles and their performance towards antimicrobial properties
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13388/ http://journalarticle.ukm.my/13388/ http://journalarticle.ukm.my/13388/1/17%20Sunderishwary%20S%20Muniandy.pdf
first_indexed	2023-09-18T20:04:45Z
last_indexed	2023-09-18T20:04:45Z
_version_	1777407083290820608

Green synthesis of ag nanoparticles and their performance towards antimicrobial properties

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