Biosynthesis of silver nanoparticles by a new strain of Streptomyces sp. compared with Aspergillusfumigatus

Locally isolated strains of a thermoalkalotolerant Streptomyces sp. and Aspergillusfumigatus were used for the in vitro biosynthesis of silver nanoparticles from AgNO3 solutions. An autolysed cell-free culture filtrate from each strain was used, indicating that the formation mechanism depends on intra-cellular components for both organisms, since culture broths had no significant nanoparticle formation potential. Nanoparticle formation was …