Bacteriagenic silver nanoparticles: synthesis, mechanism, and applications

Verfasser / Beitragende:
[Richa Singh, Utkarsha Shedbalkar, Sweety Wadhwani, Balu Chopade]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/11(2015-06-01), 4579-4593
Format:
Artikel (online)
ID: 605506426
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024 7 0 |a 10.1007/s00253-015-6622-1  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6622-1 
245 0 0 |a Bacteriagenic silver nanoparticles: synthesis, mechanism, and applications  |h [Elektronische Daten]  |c [Richa Singh, Utkarsha Shedbalkar, Sweety Wadhwani, Balu Chopade] 
520 3 |a Silver nanoparticles (AgNPs) have received tremendous attention due to their significant antimicrobial properties. Large numbers of reports are available on the physical, chemical, and biological syntheses of colloidal AgNPs. Since there is a great need to develop ecofriendly and sustainable methods, biological systems like bacteria, fungi, and plants are being employed to synthesize these nanoparticles. The present review focuses specifically on bacteria-mediated synthesis of AgNPs, its mechanism, and applications. Bacterial synthesis of extra- and intracellular AgNPs has been reported using biomass, supernatant, cell-free extract, and derived components. The extracellular mode of synthesis is preferred over the intracellular mode owing to easy recovery of nanoparticles. Silver-resistant genes, c-type cytochromes, peptides, cellular enzymes like nitrate reductase, and reducing cofactors play significant roles in AgNP synthesis in bacteria. Organic materials released by bacteria act as natural capping and stabilizing agents for AgNPs, thereby preventing their aggregation and providing stability for a longer time. Regulation over reaction conditions has been suggested to control the morphology, dispersion, and yield of nanoparticles. Bacterial AgNPs have anticancer and antioxidant properties. Moreover, the antimicrobial activity of AgNPs in combination with antibiotics signifies their importance in combating the multidrug-resistant pathogenic microorganisms. Multiple microbicidal mechanisms exhibited by AgNPs, depending upon their size and shape, make them very promising as novel nanoantibiotics. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Silver nanoparticles (AgNPs)  |2 nationallicence 
690 7 |a Bacteria  |2 nationallicence 
690 7 |a Synthesis  |2 nationallicence 
690 7 |a Antimicrobial  |2 nationallicence 
690 7 |a Mechanism  |2 nationallicence 
690 7 |a Applications  |2 nationallicence 
700 1 |a Singh  |D Richa  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
700 1 |a Shedbalkar  |D Utkarsha  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
700 1 |a Wadhwani  |D Sweety  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
700 1 |a Chopade  |D Balu  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/11(2015-06-01), 4579-4593  |x 0175-7598  |q 99:11<4579  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6622-1  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a review-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6622-1  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Singh  |D Richa  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Shedbalkar  |D Utkarsha  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wadhwani  |D Sweety  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chopade  |D Balu  |u Department of Microbiology, Savitribai Phule Pune University, 411007, Pune, India  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/11(2015-06-01), 4579-4593  |x 0175-7598  |q 99:11<4579  |1 2015  |2 99  |o 253