Affiliation:
1. Department of Mechanical Engineering , GMRIT(A) , Razam , Srikakulam Dst. , Andhra Pradesh , India
2. Department of Microbiology, Bio Enviro Chemical Solutions , Vishakapatnam , Andhra Pradesh , India
Abstract
Abstract
Many methods have been developed for the synthesis of silver nanoparticles (Ag-NPs), yet disadvantages are there to declined their catalytic activity due to the large size with small surface area. Hence, herein, the fungus mediated synthesis of Ag-NPs has been reported. The synthesized Ag-NPs were further characterized by XRD, SEM, EDS, and UV–Vis spectroscopy to study the particle size, surface, crystalline nature, phase formation of Ag-NPs and the produced particles were found to be 41.9 nm. The antibacterial efficiency of synthesized Ag-NPs was examined on various bacteria including Streptococcus pyrogenes, Staphylococcus aureus, Bacillus coagulans, Klebsiella pneumoniae and Corynibacterium glutamicum. The Ag-NPs could be considered as excellent broad-spectrum antibacterial agent. More prominently, the Ag-NPs produced by Aspergillus flavus exhibited potent antibacterial activity against certain pathogens. Bacillus coagulans exhibited maximum zone of inhibition 25.16 ± 0.80 at 80 μg/mL with respective to the standard antibiotic 26.66 ± 1.22 at 30 μg/mL concentration.
Subject
Modeling and Simulation,General Chemical Engineering
Reference23 articles.
1. Singh, R, Singh, NH. Medical application of nanoparticles in biological imaging cell labelling antimicrobial agents and anticancer nanodrugs. J Biomed Nanotechnol 2011;7:489–503. https://doi.org/10.1166/jbn.2011.1324.
2. Ahmed, A, Mukherjee, P, Senapathi, D, Khan, MI, Kumar, R, Sastry, M. Extracellular biosynthesis of silver nanoparticles using the fungus Fusarium oxysporum. Colloids Surf Biointerfaces 2003;28:313–8. https://doi.org/10.1016/s0927-7765(02)00174-1.
3. Sastry, M, Ahmad, A, Khan, IM, Kumar, R. Biosynthesis of metal nanoparticles using fungi and actinomycete. Curr Sci 2003;85:162–70.
4. Prakash, R, Thiagarajan, P. Syntheses and characterization of silver nanoparticles using Penicillium sp. isolated from soil. IJAST 2012;1:138–49.
5. Saha, S, Chattopadhyay, D, Acharya, K. Preparation of silver nanoparticles by bio-production using Nigrospora oryzaeculture filtrate and its antimicrobial activity. Dig J Nanomater Biostruct 2011;6:1519–28.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献