Evaluation of microbial inhibition properties of green and chemically synthesized ZnO nanoparticles

Nanosized particles of zinc oxide have gained much attention due to several applications which includes bacterial inhibition. Therefore, this work evaluates zinc oxide properties synthesized using reduction (chemical) and bio-reduction (green) processes and their corresponding inhibition potentials....

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Bibliographic Details
Published in:	Bulletin of materials science Vol. 42; no. 3; p. 101
Main Authors:	Alayande, S O, Adeseluka, T V, Odewumi, B J, Torimiro, N, Daramola, O B, Sodeinde, K, Ighodaro, O M, Ofudje, E A, Ajao, J A
Format:	Journal Article
Language:	English
Published:	Bangalore, India Indian Academy of Sciences 01-06-2019 Springer Nature B.V
Subjects:	Antimicrobial agents Aqueous solutions Carbohydrates Caustic soda Chemical synthesis Chemicals Chemistry and Materials Science Engineering Flavonoids Fourier transforms Infrared spectroscopy Leaves Materials Science Metal oxides Methods Microorganisms Nanoparticles Nitrates Optical measurement Phenols Phytochemicals Reagents Reduction Sodium hydroxide Zinc oxide Zinc oxides Nigeria microbial inhibition ZnO nanoparticles antimicrobial activity
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Summary:	Nanosized particles of zinc oxide have gained much attention due to several applications which includes bacterial inhibition. Therefore, this work evaluates zinc oxide properties synthesized using reduction (chemical) and bio-reduction (green) processes and their corresponding inhibition potentials. The bio-reduction process was achieved using Amaranthus spinosus at 70 ∘ C while the reduction process was initiated in the chemical process using sodium hydroxide. The optical measurement of ZnO was carried out using an UV–Vis spectrophotometer. The structural and morphological properties of the synthesized ZnO were evaluated using Fourier transform infrared spectroscopy, X-ray diffractometry and scanning electron microscopy. The elemental composition was carried out using energy dispersive X-ray spectroscopy. The antimicrobial activity property of the nanoparticles was tested against Pseudomonas aeruginosa , Salmonella typhi and Shigella dysenteriae . The degree of susceptibility of ZnO nanoparticles was higher in the bio-reduction process than chemically synthesized for selected microorganisms. A sustainable pathway for development of bio-antibiotic is presented.
ISSN:	0250-4707 0973-7669
DOI:	10.1007/s12034-019-1761-0