Optimization of the Biosynthesis of Silver Nanoparticles Using Bacterial Extracts and Their Antimicrobial Potential

Overview

Journal Biotechnol Rep (Amst)

Specialty Biotechnology

Date 2023 Nov 29

PMID 38020726

Authors

Ivan Solis-Sandi

Sara Cordero-Fuentes

Reinaldo Pereira-Reyes

Jose Roberto Vega-Baudrit

Diego Batista-Menezes

Gabriela Montes de Oca-Vasquez

Affiliations

Soon will be listed here.

Abstract

In the present study, silver nanoparticles (AgNPs) were biosynthesized using the supernatant and the intracellular extract of , and . The characterization of the AgNPs was carried out using UV-Vis spectroscopy, FTIR, DLS and TEM. Resazurin microtiter-plate assay was used to determine the antimicrobial action of AgNPs against UV-Visible spectra showed peaks between 414 and 460 nm. TEM analysis revealed that the synthesized AgNPs showed mostly spherical shapes. DLS results determined sizes from 20.8 to 118.4 nm. The highest antimicrobial activity was obtained with the AgNPs synthesized with supernatant rather than those using the intracellular extract. Therefore, it was determined that the bacterial species, temperature, pH, and type of extract (supernatant or intracellular) influence the biosynthesis. This synthesis thus offers a simple, environmentally friendly, and low-cost method for the production of AgNPs, which can be used as antibacterial agents.

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