Journal
TALANTA
Volume 174, Issue -, Pages 539-547Publisher
ELSEVIER
DOI: 10.1016/j.talanta.2017.06.013
Keywords
Biofunctionalized selenium nanoparticles; Selenium oxyanions; Microbial reduction; Proteins
Categories
Funding
- Russian Science Foundation [14-26-00094]
- Russian Foundation for Basic Research [16-08-01302-a]
- Russian Science Foundation [17-26-00003] Funding Source: Russian Science Foundation
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Biogenic formation of nano-sized particles composed of various materials (in particular, selenium) by live microorganisms is widespread in nature. This phenomenon has been increasingly attracting the attention of researchers over the last decade not only owing to a range of diverse applications of such nanoparticles (NPs) in nanobiotechnology, but also because of the specificity of methodologies and mechanisms of NPs formation related to green synthesis. In this mini-review, recent data are discussed on the multifaceted role of proteins in the processes of microbial reduction of selenium oxyanions and the formation of Se NPs. Besides the involvement of proteins in reducing selenites and selenates, their participation in the microbially driven growth and stabilisation of Se NPs is analysed, which results in the formation of unique nanostructured materials differing from those obtained chemically. This mini-review is thus focussed on proteins involved in microbial synthesis of Se NPs and on instrumental analysis of these processes and their products (biogenic nanostructured selenium particles functionalised by a surface-capping layer of various biomacromolecules).
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