Nitrile is a functional group that usually is transformed to amides or carboxylic acids under strong reaction conditions in acidic or basic media and high temperatures. Amides have also been prepared from nitriles at room temperature using strong oxidizing agents such as hydrogen peroxide or sodium superoxide in DMSO. On the other hand biocatalytic hydrolysis of nitriles mediated by nitrilase, ...

Exposure of tryptophan hydroxylase (TPH), the initial and rate-limiting enzyme in the biosynthesis of the neurotransmitter serotonin, to dopamine under mild oxidizing conditions (iron + H2O2) or in the presence of tyrosinase results in a concentration-dependent inactivation of the enzyme. Dopamine, iron, H2O2, or tyrosinase alone does not alter TPH activity. Similarly, N-acetyldopamine oxidized...

Thioredoxin reductase (encoded by trxB) protects Staphylococcus aureus against oxygen or disulfide stress and is indispensable for growth. Among the different sarA family mutants analyzed, transcription of trxB was markedly elevated in the sarA mutant under conditions of aerobic as well as microaerophilic growth, indicating that SarA acts as a negative regulator of trxB expression. Gel shift an...

Smelting reduction of spent lithium-ion batteries (LIBs) produces metallic alloys containing Co, Ni, Cu, Mn, and Fe. Finding suitable reagents in terms efficiency, economics, friendly environment for the dissolution these metals from is very important recovery process metals. In this work, employment ferric chloride solution was studied. The effect parameters like FeCl3 concentration, temperatu...

Water treatment, such as disinfection, is an integral stage of its use for human life. The plasma technology with high-voltage electric discharge in a liquid obtaining bactericidal effect discussed. It has been experimentally shown that among the factors accompanying and affecting viability bacteria, cavitation main one. Simultaneous special mode oxidizing agents makes it possible to achieve st...

Tobacco smoking causes a variety of illnesses, the most common which is ''Chronic Obstructive Pulmonary Disease'' (COPD), and has severe influence on one's health.Tobacco consists nearly 7000 toxic chemicals, including free radicals oxidizing agents. The impact research being done both innate adaptive immune responses. Adaptive systems affected by include T helper cells, regulatory memory T/B l...

Spent residuum hydroprocessing (RHDP) catalysts are hazardous waste bearing high-content vanadium and large amounts of oily pollutants. In this paper, a process featuring Fenton-like reaction alkaline leaching was proposed to recover from spent RHDP catalysts. the first step, using peroxide conducted degrade pollutants make surface catalyst becomes hydrophilic. second vanadium-containing deposi...