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Bacteria in Heavy Metal Remediation and Nanoparticle Biosynthesis Publisher



Iravani S1 ; Varma RS2
Authors
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Authors Affiliations
  1. 1. Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Hezar Jarib Street, Isfahan, 81746-73461, Iran
  2. 2. Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc, 783 71, Czech Republic

Source: ACS Sustainable Chemistry and Engineering Published:2020


Abstract

Biosynthesis of nanomaterials using natural and biological materials as reducing, stabilizing, and capping agents is an important field of biomaterial science, nanoscience, and nanobiotechnology. Relative to conventional approaches for the assembly of nanomaterial deploying hazardous and dangerous resources, bioinspired synthesis using bacteria has significant advantages of cost-effectiveness and eco-friendliness besides being a sustainable, nontoxic, and inexpensive option. Additionally, bacteria can be used for the bioreduction and biorecovery of heavy metal ions. Bacterial cells, as efficient biofactories, have significant ability to bioreduce metal ions that can be obtained as nanocrystals of varying morphologies and sizes. In this regard, bacteria-assisted nanoparticle synthesis and the associated parameters need to be optimized, comprehensively. The developments in nanoparticle biosynthesis domain conform to the green chemistry principles that minimize the use of hazardous materials and maximize the safety and sustainability of the nanoparticle preparation. In this review, important issues pertaining to bioaccumulation, biotransformation, and biosynthesis of metallic nanoparticles using bacteria are highlighted including the mechanistic aspects of the bacterial synthesis of nanoparticles. © 2020 American Chemical Society.
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