Aims: Since mycosynthesis of metal nanoparticles (NPs) is advertised as a promising and ecofriendly approach. Thus, this study aims to investigate the capability of Aspergillus brasiliensis ATCC 16404 for mycosynthesis of silver NPs (AgNPs).
Methods And Results: One-factor-at-a-time-technique was used to study the effect of different physicochemical parameters: the reaction time, pH, temperature, different stirring rates, illumination, and finally, the different concentrations of silver nitrate and fungal biomass on the mycosynthesis of AgNPs. The visual observation showed the characteristic brown colour formation due to the bioreduction of Ag ions to Ag by the mycelial cell-free filtrate (MCFF). The UV/visible spectrophotometric technique displayed a characteristic sharp peak at ʎ confirming the mycosynthesis of AgNPs. The zeta potential value -16·7 mV assured the long-term stability of AgNPs and the dynamic light scattering analysis revealed good dispersion and average particle size 77 nm. The energy dispersive X-ray spectroscopy displayed a maximum elemental distribution of silver elements. The X-ray diffraction spectroscopy demonstrated the crystallinity of the mycosynthesized AgNPs. The field emission scanning electron microscope and high-resolution transmission electron microscope revealed monodispersed spherical shaped AgNPs with average particle size of 6-21 nm. The FTIR analysis showed the major peaks of proteins providing the possible role of MCFF in the synthesis and stabilization of the AgNPs. The mycosynthesized AgNPs expressed good biocidal activity against different pathogenic micro-organisms causing some water-related diseases and health problems to local residents.
Conclusions: This study proved that A. brasiliensis ATCC 16404 MCFF has good potential for mycosynthesis of AgNPs, which exhibited good antimicrobial effect on different pathogenic micro-organisms; thus, it can be applied for water disinfection.
Significance And Impact Of The Study: This research provides a helpful insight into the development of a new mycosynthesized antimicrobial agent.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/jam.13776 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chitosan and alginate/Aspergillus flavus-mediated nanocomposite films for preservation of postharvest tomatoes.
Int J Biol Macromol
January 2025
Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt. Electronic address:
The isolated Aspergillus flavus NSRN22 was used for green synthesis of silver and selenium nanoparticles (AgNPs and SeNPs). New food packaging films produced by combining each type of NPs with chitosan (CS) or sodium alginate (SA) were characterized. Transmission electron microscopy revealed that the average particle size was lower in case of AgNPs (9 to 14.
View Article and Find Full Text PDFMycosynthesis of silver nanoparticles from endophytic and their antibacterial activity against methicillin-resistant and .
Front Microbiol
November 2024
Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.
Background: Methicillin-resistant (MRSA) is a drug-resistant and biofilm-forming pathogenic bacteria with severe morbidity and mortality. MRSA showed resistance against currently available antibiotics. Thus, there is an urgent need to develop novel effective treatments with minimal side effects to eliminate MRSA.
View Article and Find Full Text PDFMyco-synthesis of multi-twinned silver nanoparticles as potential antibacterial and antimalarial agents.
RSC Adv
January 2024
University School of Automation and Robotics, Guru Gobind Singh Indraprastha University East Delhi Campus, SurajmalVihar Delhi 110092 India
In recent days, biogenic and green approaches for synthesizing nanostructures have gained much attention in biological and biomedical applications. Endophytic fungi have been recognized to produce several important biomolecules for use in various fields. The present work describes the use of endophytic fungi isolated from for the synthesis of multi-twinned silver nanoparticles (MT-AgNPs) and their successful applications in antimicrobial and antimalarial studies.
View Article and Find Full Text PDFOptimizing the microbial synthesis of silver nanoparticles using Gloeophyllum striatum and their antimicrobial potential evaluation.
Sci Rep
November 2023
Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha Street, 90-237, Lodz, Poland.
The search for new sources of silver nanoparticles (AgNPs) is highly relevant in many fields. Mycosynthesis seems to be advantageous for large-scale production, and using brown rot fungi might be a promising solution. In this study, AgNP synthesis using Gloeophyllum striatum DSM 9592 was performed under various process conditions.
View Article and Find Full Text PDFMycosynthesis of silver nanoparticles using marine fungi and their antimicrobial activity against pathogenic microorganisms.
J Genet Eng Biotechnol
November 2023
The Regional Center of Mycology and Biotechnology, Al-Azhar University, Cairo, 4434010, Egypt.
Objectives: At the present time, there is a persistent need to get rid of environmental contaminants by eco-friendly, sustainable, and economical technologies. Uncontrolled disposal practices of domestic and industrial solid and liquid wastes led to water pollution which has negative impacts on public health, environment, and socio-economic development. Several water-borne diseases are spreading man to man by microorganisms such as pathogenic bacteria.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!