conclusions by combining the two tests, a rapid approach to estimation of most probable number of chlorinated methane utilizing bacteria is introduced. treatment by nanosilver particles was resulted in the easier and faster biodegradation of chloroform by bacteria. thus, degradation of these chlorinated compounds is more efficient compared to cometabolism. results most probable number of methyl...

Pathogenic bacteria are one of the main reasons for worldwide water-borne disease causing a big threat to public health, hence there is an urgent need to develop cost-effective water treatment technologies. Nano-materials in point-of-use systems have recently attracted considerable research and commercial interests as they can overcome the drawbacks of traditional water treatment techniques. We...

This article presents an analysis of available scientific data on the morphology and nanostructure COVID-19 coronavirus. Possible mechanisms influence nanosilver particles coronavirus are considered. Models complexes with spike protein amino acids were constructed using computer quantum-chemical modeling. The values electron density distribution, highest occupied molecular orbital, lowest unocc...

The work presents a method of obtaining an aqueous raspberry extract as well as its physicochemical and analytical characteristics. The paper also contains a description of the method of preparation of nanosilver suspensions based on this extract. The raspberry extract served as a source of phenolic compounds which acted as both reducing and stabilizing agents. Suspensions of silver nanoparticl...

Nanosilver has become one of the most widely used nanomaterials in consumer products because of its antimicrobial properties. Public concern over the potential adverse effects of nanosilver's environmental release has prompted discussion of federal regulation. In this paper, we assess several classes of consumer products for their silver content and potential to release nanosilver into water, a...

The pulp and paper industry has an opportunity to play a vital role in breaking the spread of COVID-19 pandemic through production that supports widespread use antimicrobial paper. This provides brief review paper-related industries, such as those producing relevant additives, R&D organizations are actively engaged developing papers. focus here is on potential three nano-additives for paper...

Silver nanoparticles (NPs) have at least one dimension of a particle smaller than 100 nm and contain 20-15,000 silver atoms. Due to its antibacterial activity nanosilver (NS) is used for medical purposes. NS particles can be obtained by various methods. Potentially, the best method of the NS synthesis for medical purposes is based on a brief flow of electric current between two silver electrode...

Modern titanium dioxide nanomaterials, in particular modified with nanosilver, have antiviral, antibacterial, antifungal activity, cytotoxic effects vitro experiments and can affect germ cells of warm-blooded laboratory animals. The research aims to study the effect different types nanoparticles on physiological biochemical characteristics wild boar vitro. When applying maximum dose (LD50) stud...

polymethyl methacrylate (pmma), widely used as a prosthodontic base, has many disadvantages, including a high thermal expansion coefficient and low thermal conductivity, a low elasticity coefficient, low impact strength and low resistance to fatigue. this study aimed to make an in vitro comparison of the thermal conductivity, compressive strength, and tensile strength of the acrylic base of com...