期刊
FERMENTATION-BASEL
卷 7, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/fermentation7030130
关键词
selenium-nanoparticle; bacteria; antibacterial activity; selenium biotransformation
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico [CB-2014-241333]
Selenium nanoparticles (SeNPs) with antibacterial properties are increasingly important in food and medical fields. Biogenic SeNPs, synthesized by biological methods, have a negative charge and high stability due to interaction between their surface and capping layer. Various mechanisms of antimicrobial activity have been reviewed, along with proposed biosynthesis hypotheses.
Selenium nanoparticles (SeNPs) are gaining importance in the food and medical fields due to their antibacterial properties. The microbial inhibition of these kinds of particles has been tested in a wide range of Gram (+) and Gram (-) pathogenic bacteria. When SeNPs are synthesized by biological methods, they are called biogenic SeNPs, which have a negative charge caused by their interaction between surface and capping layer (bioorganic material), producing their high stability. This review is focused on SeNPs synthesis by bacteria and summarizes the main factors that influence their main characteristics: shape, size and surface charge, considering the bacteria growth conditions for their synthesis. The different mechanisms of antimicrobial activity are revised, and this review describes several biosynthesis hypotheses that have been proposed due to the fact that the biological mechanism of SeNP synthesis is not fully known.
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