Biological Production of Gold Nanoparticles at Different Temperatures: Efficiency Assessment

0578350 - ÚIACH 2024 RIV US eng J - Journal Article
Pourali, Parastoo - Svoboda, Milan - Benada, Oldřich - Dzmitruk, Volha - Benson, Veronika
Biological Production of Gold Nanoparticles at Different Temperatures: Efficiency Assessment.
Particle & Particle Systems Characterization. Roč. 40, č. 12 (2023), č. článku 2200182. ISSN 0934-0866. E-ISSN 1521-4117
Research Infrastructure: CIISB III - 90242
Institutional support: RVO:68081715 ; RVO:61388971 ; RVO:86652036
Keywords : biological method * fusarium oxysporum * gold nanoparticles * nanoparticleproduction efficiency
OECD category: Analytical chemistry; Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials (MBU-M); Analytical chemistry (BTO-N)
Impact factor: 2.7, year: 2022
Method of publishing: Open access
https://onlinelibrary.wiley.com/doi/epdf/10.1002/ppsc.202200182

The study aims to compare different approaches and efficacies during thebiological production of nanoparticles (NPs). Gold nanoparticles (AuNPs) areproduced byFusarium oxysporumat two different temperatures. One flask isincubated at 37°C (“Common”) and the other is directly heated for 5 min at80°C (“Heat-treated”). Obtained AuNPs are analyzed and compared byspectrophotometry, transmission electron microscopy (TEM), scanningelectron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS),dynamic light scattering (DLS), and Fourier transform infrared spectroscopy(FTIR). Graphite furnace atomic absorption spectroscopy (GF-AAS) is used todetermine the particle concentration after the AuNPs production. The AuNPsprepared by both (the Common and the Heat-treated) methods exhibitmaximum absorption peaks at 541 and 528 nm, respectively, and have roundshapes and sizes of less than 50 nm. Their zeta potential is about−28 mV.GF-AAS shows that the efficiency of AuNP production in Common- andHeat-treated samples is equal, between 65% and 68%. Since the Heat-treatedsample shows a better size distribution, the use of higher temperature andshorter time period is preferable for the bioproduction of AuNPs. It seemsthat shortening the time for the production of AuNPs prevents the formationof larger NPs.
Permanent Link: https://hdl.handle.net/11104/0347354