Green synthesized ZnO nanoparticles against
bacterial and fungal pathogens |
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Authors: | Sangeetha Gunalan Rajeshwari Sivaraj and Venckatesh Rajendran |
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Institution: | 1. Department of Biotechnology, School of Life sciences, Karpagam University, Eachanari Post, Coimbatore 641 021,Tamilnadu, India 2. Department of Chemistry, Government Arts College, Udumalpet 642 126, Tamilnadu, India |
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Abstract: | Zinc oxide nanoparticles are known to be one of the multifunctional inorganic nanoparticles
with effective antibacterial activity. This study aims to determine the antimicrobial efficacy of green and
chemical synthesized ZnO nanoparticle against various bacterial and fungal pathogens. Various
microbiological tests were performed using varying concentrations of green and chemical ZnO NPs with
sizes 40 and 25 nm respectively. Results prove that green ZnO nanoparticles show more enhanced
biocidal activity against various pathogens when compared to chemical ZnO nanoparticles. Also
effectiveness of nanoparticles increases with increasing particle dose, treatment time and synthesis method.
In addition, the current study has clearly demonstrated that the particle size variation and surface area to
volume ratio of green ZnO nanoparticle are responsible for significant higher antimicrobial activity. From
the results obtained it is suggested that green ZnO NPs could be used effectively in agricultural and food
safety applications and also can address future medical concerns. |
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Keywords: | Green ZnO nanoparticle Chemical ZnO
nanoparticle Antimicrobial potential Bacterial pathogen Fungal pathogen |
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