Abstract

Selenium nanoparticles (SeNPs) gained prominence in the area of biomedical owing to their antioxidant, antibacterial and anticancer properties. SeNPs are biocompatible and nontoxic compared to their ionic counterparts and they can be synthesized by several methods. Among many synthesis methods, biogenic synthesis has gained popularity with ecofriendly and cost-effective nature and generating minimal waste. This chapter mainly focused on the synthesis of SeNPs using microorganisms and agro-based materials. These biological materials are easily available, renewable and enriched with biomolecules, and play a significant role in formulating and enhancing bioactivity of SeNPs. Here we summarized the recent literature on biogenic synthesis of the SeNPs using several bacterial strains, different types of fungal, yeasts, and plants and pants parts which have novel approaches of synthesis for their application in different fields. Further, the possible mechanistic pathways of SeNPs formation in biogenic synthesis are discussed.

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