ISSN: 0973-7510

E-ISSN: 2581-690X

Research Article | Open Access
H. Syed Jahangir , T. Tamil Kumar, M. Mary Concelia and R. Alamelu
Department of Botany, Jamal Mohamed College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli – 620 020, Tamil Nadu, India.
J Pure Appl Microbiol. 2020;14(3):1999-2008 | Article Number: 6199
https://doi.org/10.22207/JPAM.14.3.39 | © The Author(s). 2020
Received: 01/04/2020 | Accepted: 24/07/2020 | Published: 03/09/2020
Abstract

Green synthesis nanoparticles were considered as an alternative effective resource instead of chemically engineered metal oxide nanoparticles. Using leaf extracts for green synthesis, essential for the reduction and oxidation process of the metals. Phyllanthus niruri (L.) and Aristolochia indica (L.) leaf extracts were used to synthesize yellowish brown coloured silver (Ag) and white coloured zinc oxide (ZnO) nanoparticles. Synthesized green nanoparticles characterized by different spectroscopic analysis (XRD, XPS, FTIR, PL) and TEM. Characterization results confirmed the particles morphology, size, structure and also their optical and photonic properties. Three different concentrations of Ag and ZnO NPs were analysed against three (gram positive) and five (gram negative) bacteria. Increased levels of green synthesized Ag and ZnO NPs showed increased zone of inhibition than amoxicillin (positive control). Our study proved that the green synthesized Ag and ZnO NPs showed similar unique physical and chemical properties with metal oxide nanoparticles but less toxic while their discharge into the ecosystem.

Keywords

Green synthesis, silver, zinc, spectroscopy, TEM, antibacterial studies

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