Journal
BIOTECHNOLOGY LETTERS
Volume 38, Issue 4, Pages 545-560Publisher
SPRINGER
DOI: 10.1007/s10529-015-2026-7
Keywords
Biological applications; Biogenic reduction; Ecofriendly; Metal nanoparticles; Nanotechnology; Plants; Purity
Categories
Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi
- University Grant Commission (UGC), New Delhi
- University of Allahabad, Allahabad, India
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Nanotechnology is a new and emerging technology with wealth of applications. It involves the synthesis and application of materials having one of the dimensions in the range of 1-100 nm. A wide variety of physico-chemical approaches are being used these days for the synthesis of nanoparticles (NPs). However, biogenic reduction of metal precursors to produce corresponding NPs is eco-friendly, less expensive, free of chemical contaminants for medical and biological applications where purity of NPs is of major concern. Biogenic reduction is a Bottom Up approach similar to chemical reduction where a reducing agent is replaced by extract of a natural products with inherent stabilizing, growth terminating and capping properties. Furthermore, the nature of biological entities in different concentrations in combination with reducing organic agents influence the size and shape of NPs. Present review focuses on microbes or plants based green synthesis of Ag, Au, Cu, Fe, Pd, Ru, PbS, CdS, CuO, CeO2, Fe3O4, TiO2, and ZnO NPs and their potential applications.
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