Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis

Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis

An ecofriendly and green method for the synthesis of silver and copper nanoparticles has developed using aqueous leaves extract of Cassia occidentalis. The formation of AgNPs and CuNPs was monitored by measuring the UV-Vis spectra. The morphology and crystalline phase of the metal nanoparticles were...

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Main Authors: Manjul Gondwal, Geeta Joshi nee Pant
Format: Article
Language:English
Published: Hindawi Limited 2018-01-01
Series:International Journal of Biomaterials
Online Access:http://dx.doi.org/10.1155/2018/6735426
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spelling doaj-5dc36baf32d64cb8b52e622de9d1fe792020-11-25T01:09:34ZengHindawi LimitedInternational Journal of Biomaterials1687-87871687-87952018-01-01201810.1155/2018/67354266735426Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalisManjul Gondwal0Geeta Joshi nee Pant1Department of Chemistry, Hemvati Nandan Bahuguna Garhwal University, Srinagar, Garhwal, Uttarakhand, IndiaDepartment of Chemistry, Hemvati Nandan Bahuguna Garhwal University, Srinagar, Garhwal, Uttarakhand, IndiaAn ecofriendly and green method for the synthesis of silver and copper nanoparticles has developed using aqueous leaves extract of Cassia occidentalis. The formation of AgNPs and CuNPs was monitored by measuring the UV-Vis spectra. The morphology and crystalline phase of the metal nanoparticles were determined using transmission electron microscopy (TEM) and scanning electron microscopy (SEM) with X-ray energy dispersive spectrophotometer (EDX) and X-ray diffraction (XRD). The synthesized metal nanoparticles were generally found to be spherical and oval in shape. The AgNPs and CuNPs showed highly potent antibacterial activity against Escherichia coli and Salmonella typhi bacteria, respectively. The CuNPs showed higher radical scavenging activity than AgNPs. The AgNPs showed lower haemolysis (1.7%) exhibiting lesser toxicity as compared to CuNPs. The CuNPs have better catalytic ability for the reduction of 4-nitrophenol and 2-nitrophenol as compared to AgNPs.http://dx.doi.org/10.1155/2018/6735426
collection DOAJ
language English
format Article
sources DOAJ
author Manjul Gondwal
Geeta Joshi nee Pant
spellingShingle Manjul Gondwal
Geeta Joshi nee Pant
Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis
International Journal of Biomaterials
author_facet Manjul Gondwal
Geeta Joshi nee Pant
author_sort Manjul Gondwal
title Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis
title_short Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis
title_full Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis
title_fullStr Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis
title_full_unstemmed Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis
title_sort synthesis and catalytic and biological activities of silver and copper nanoparticles using cassia occidentalis
publisher Hindawi Limited
series International Journal of Biomaterials
issn 1687-8787
1687-8795
publishDate 2018-01-01
description An ecofriendly and green method for the synthesis of silver and copper nanoparticles has developed using aqueous leaves extract of Cassia occidentalis. The formation of AgNPs and CuNPs was monitored by measuring the UV-Vis spectra. The morphology and crystalline phase of the metal nanoparticles were determined using transmission electron microscopy (TEM) and scanning electron microscopy (SEM) with X-ray energy dispersive spectrophotometer (EDX) and X-ray diffraction (XRD). The synthesized metal nanoparticles were generally found to be spherical and oval in shape. The AgNPs and CuNPs showed highly potent antibacterial activity against Escherichia coli and Salmonella typhi bacteria, respectively. The CuNPs showed higher radical scavenging activity than AgNPs. The AgNPs showed lower haemolysis (1.7%) exhibiting lesser toxicity as compared to CuNPs. The CuNPs have better catalytic ability for the reduction of 4-nitrophenol and 2-nitrophenol as compared to AgNPs.
url http://dx.doi.org/10.1155/2018/6735426
work_keys_str_mv AT manjulgondwal synthesisandcatalyticandbiologicalactivitiesofsilverandcoppernanoparticlesusingcassiaoccidentalis
AT geetajoshineepant synthesisandcatalyticandbiologicalactivitiesofsilverandcoppernanoparticlesusingcassiaoccidentalis
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