Nanotechnology is a growing discipline in tech economy wherein nanoparticles became part of everyday life. Nanoparticles a substance having a size less than 100nm used mostly in industrial products including clothing, cosmetics, foods and drugs. Although it shows adverse effects on humans, animal and environment but different properties of it are useful for many applications. Consequently, careful assessment upon usage of nanoparticles is needed to provide safety during speedy commercialization of nanotechnology.
Nanoparticles extracted from fungi
Recent findings of biogenic production of nanoparticles became superior compare to that of chemical methods. Microbial nano-biotechnology attracted more attention in the development and progress on the field of chemistry, engineering and biological science. Since, production of biogenic nanoparticles will not release toxic and harmful wastes. But it is a “green” environmental friendly method that requires less energy compared to chemical process. Tellurium nanoparticles are produced from microbial cells. In this current study investigates the most active fungi that produced tellurium through enzymatic process to obtain pure nanoparticles.
On the other hand tellurium is a semiconductor particles added to copper, gold or silver used in certain electrical purposes. It is also used in vulcanizing as secondary agent for rubber and as alloying agent of stainless steel, color glass and ceramics. Because of low melting point of tellurium it attracted attention and might have future uses including cancer, medicine and antibiotics.
Molecular methods used to identify the fungi while the shape and sizes produced by tellurium using dynamic light scattering. Tellurium is oval-shaped nanoparticles that are most likely corresponds to amine and carboxylic group. It also possesses a potential for antimicrobial activity that shows a promising results. Indeed, the antimicrobial activity of tellurium nanoparticles offers a novel and feasible methods for antibacterial multi-resistance problem. Therefore, fungal isolates Aspergillus welwitschiae contains tellurium nanoparticles and reveals good antibacterial activity against Escherichia coli and Staphylococcus aureus.
Source: Prepared by Joan Tura from Biotechnology Reports
Volume 18, June 2018, e00247