Microbial synthesis of silver nanoparticles and its antimicrobial activity

The bacteria with a remarkable ability to regenerate heavy metal ions are considered biological factories or important nano-factories to produce nanoparticles. The bacterial production of nanoparticles as a green and one-step method can overcome production problems and disadvantages through physical and chemical methods.

In this study, bacteria isolates were taken from soil samples of Nakhlak mine. One silver resistant bacterial strain was selected for the production of silver nanoparticles. This strain synthesized silver nanoparticles with supernatant and biomass. The nanoparticles synthesized were characterized using XRD and SEM. The antimicrobial activity of the nanoparticles was determined.

The silver resistance bacteria were isolated from soil samples. One silver resistant bacterial strain was selected for the production of silver nanoparticles. The nanoparticles showed good antimicrobial activity against standard strains of tested microorganisms.

The nanoparticle synthesized by bacterial strain isolated from Nakhlak mine is a promising new biological source for synthesizing silver nanoparticles with potent antimicrobial activity. According to the results, this compound can be used to make disinfectants