Gold nanoparticles synthesis mediated by fungus isolated from aerobic granular sludge: Process and mechanisms.

ABSTRACT: Due to the low toxicity, biocompatibility and eco-friendliness, microorganisms have received a lot of attention for gold nanoparticles (AuNPs) synthesis. This work isolated a fungal strain capable of efficiently generating AuNPs from aerobic granular sludge, named XY3. Comparison of 18S rDNA sequence results showed that fungus XY3 belongs to Candida rugopelliculosa. AuNPs were synthesized by initiating an Au³⁺-induced stress response that prompted the reduction of Au³⁺ to Au⁰ by the fungus XY3. It is worth noting that the addition of nutritional substrates weakens the stress response induced by Au³⁺, resulting in a decrease in the yield of AuNPs. As evidenced by nystatin inhibition studies, the synthesis of AuNPs is based on biochemical re

SUBMITTER: Zhao X 

PROVIDER: S-EPMC10966691 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature