Biosynthesis of Nanoparticles by Microorganisms and Their Significance in Sustainable Agriculture

Chaudhary, Deepika; Kumar, Rakesh; Kumari, Anju; Rashmi, Rashmi; Jangra, Raman

doi:10.1007/978-981-10-4059-7_5

Cited by 3 publications

(1 citation statement)

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“…NADH and NADPH are commonly employed. In extracellular synthesis, microbial enzymes secreted in medium subsequently reduces metal ions into their respective nanoparticles and also they act as capping agent (Chaudhary et al, 2017).…”

Section: Mechanism Behind Ptnps Synthesismentioning

confidence: 99%

Bacteriogenic Platinum Nanoparticles for Application in Nanomedicine

et al. 2021

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Nanoscale materials have recently gained wide attention due to their potential to revolutionize many technologies and industrial sectors, including information technology, homeland security, transportation, energy, food safety, environmental science, catalysis, photonics and medicine. Among various nanoparticles, platinum nanoparticles (PtNPs) are widely used for biomedical applications, including imaging, implants, photothermal therapy and drug delivery. Indeed, PtNPs possesses intrinsic antimicrobial, antioxidant, and anticancer properties. Also, due to their remarkable catalytic activity, they are able to reduce the intracellular reactive oxygen species (ROS) levels and impair the downstream pathways leading to inflammation. Various approaches, including both physical and chemical methods, are currently employed for synthesis of PtNPs. However, the use of hazardous reaction conditions and toxic chemicals in these processes poses a potential threat to the environment and severely compromise the biocompatibility of the nanoparticles. Hereby, increasing need for exploitation of novel routes for synthesis of PtNPs has led to development of biological fabrication using microbes, specifically bacteria. Herein, we present a most comprehensive report on biogenesis of PtNPs by several bacteria like Acinetobacter calcoaceticus, Desulfovibrio alaskensis, Escherichia coli, Shewanella algae, Plectonema boryanum, etc. An overview of the underlying mechanisms of both enzymatic and non-enzymatic methods of synthesis is included. Moreover, this review highlights the scope of developing optimized process to control the physicochemical properties, such as the nanoparticle surface chemistry, charge, size and shape, which, in turn, may affect their nanotoxicity and response at the biointerface for nanomedicine applications.

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Section: Mechanism Behind Ptnps Synthesismentioning

confidence: 99%