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Advances in biosynthesis of noble metal nanoparticles mediated by photosynthetic organisms-A review.

Authors
  • Bao, Zeqing1
  • Lan, Christopher Q2
  • 1 Department of Chemical and Biological Engineering, University of Ottawa, Canada. Electronic address: [email protected] , (Canada)
  • 2 Department of Chemical and Biological Engineering, University of Ottawa, Canada. Electronic address: [email protected] , (Canada)
Type
Published Article
Journal
Colloids and surfaces. B, Biointerfaces
Publication Date
Dec 01, 2019
Volume
184
Pages
110519–110519
Identifiers
DOI: 10.1016/j.colsurfb.2019.110519
PMID: 31569003
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The last decade has witnessed significant developments in the biosynthesis of noble metal nanoparticles (NMNPs) due to their distinct advantages in various practical applications. Many photosynthetic organisms, including plants, microalgae, and photosynthetic bacteria, have been explored for NMNP synthesis in an eco-friendly and cost-effective manner. These biomasses were used for NMNP biosynthesis as growing cells, non-growing cells, whole cells extract, disrupted cell extract, residual biomasses, gum solutions, etc. Different mechanisms might be involved to reduce noble metal ions to NMNP. These mechanisms include reduction of metal ions catalysed by reductases using NADH as electron donors, reduction of metal ions using biochemical molecules such as polysaccharides and proteins as electron donators, and light-dependant biosynthesis of NMNP involving pigments for light capture and water-splitting for electron supplementation. NMNP may be applied as catalyst, antibacterial, anticancer, and drug delivery vehicle. Copyright © 2019 Elsevier B.V. All rights reserved.

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