• Srivani Junoothula
• Dr. Pushpendra Sharma

Silver nanoparticles (Ag NPs) have gained significant interest due to their unique optical, antimicrobial, electrical, physical properties and their possible application. The change of energy level from continuous band to discrete band of Ag NPs with decrease in size of particles gives strong size dependent chemical and physical properties. Ag NPs show lower toxicity to human health while Ag NPs show higher toxicity to various micro-organisms. For this reason Ag NPs having scope for medical instruments, antimicrobial application, products for health care such as scaffolds, burn dressing, water purification, agriculture uses. Ag NPs can be synthesized by using various methods which is primarily classified into two type’s namely physical process which includes laser ablation, condensation, evaporation etc. and chemical process which includes hydrazine, sodium borohydride, green synthesis etc. Among all these methods green synthesis is non-toxic, eco-friendly and cost effective. In this review paper different synthesis process especially green synthesis, properties, applications of silver nanoparticles and their recent advances are described. We also highlight the toxicity and compares Ag NPs with others nanoparticles.

Ag NPs, Synthesis, Antibacterial Activity, Optical Properties, Applications, Toxicity.

"A STUDY OF SYNTHESIS AND CHARACTERIZATION OF SILVER NANOPARTICLES TOWARDS ANTIBACTERIAL ACTIVITY IN GREEN SYNTHESIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 11, page no.d478-d483, November-2021, Available :http://www.jetir.org/papers/JETIR2111368.pdf

"A STUDY OF SYNTHESIS AND CHARACTERIZATION OF SILVER NANOPARTICLES TOWARDS ANTIBACTERIAL ACTIVITY IN GREEN SYNTHESIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 11, page no. ppd478-d483, November-2021, Available at : http://www.jetir.org/papers/JETIR2111368.pdf