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1,4-α-Glucosidase from IFusarium solani/I for Controllable Biosynthesis of Silver Nanoparticles and Their Multifunctional Applications

Zeng, Ying-Jie ; Wu, Xiao-Ling ; Yang, Hui-Rong ; Zong, Min-Hua ; Lou, Wen-Yong

International journal of molecular sciences, 2023-03, Vol.24 (6) [Periódico revisado por pares]

MDPI AG

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  • Título:
    1,4-α-Glucosidase from IFusarium solani/I for Controllable Biosynthesis of Silver Nanoparticles and Their Multifunctional Applications
  • Autor: Zeng, Ying-Jie ; Wu, Xiao-Ling ; Yang, Hui-Rong ; Zong, Min-Hua ; Lou, Wen-Yong
  • Assuntos: Antibacterial agents ; Biosynthesis ; Cell death ; Enzymes ; Hydrolases ; Nanoparticles ; Physiological aspects ; Silver
  • É parte de: International journal of molecular sciences, 2023-03, Vol.24 (6)
  • Descrição: In the study, monodispersed silver nanoparticles (AgNPs) with an average diameter of 9.57 nm were efficiently and controllably biosynthesized by a reductase from Fusarium solani DO7 only in the presence of β-NADPH and polyvinyl pyrrolidone (PVP). The reductase responsible for AgNP formation in F. solani DO7 was further confirmed as 1,4-α-glucosidase. Meanwhile, based on the debate on the antibacterial mechanism of AgNPs, this study elucidated in further depth that antibacterial action of AgNPs was achieved by absorbing to the cell membrane and destabilizing the membrane, leading to cell death. Moreover, AgNPs could accelerate the catalytic reaction of 4−nitroaniline, and 86.9% of 4-nitroaniline was converted to p-phenylene diamine in only 20 min by AgNPs of controllable size and morphology. Our study highlights a simple, green, and cost-effective process for biosynthesizing AgNPs with uniform sizes and excellent antibacterial activity and catalytic reduction of 4-nitroaniline.
  • Editor: MDPI AG
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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