Decolourisation of Anionic cum acidic azo dye Amaranth was carried out by an Advanced Oxidation Process Solar/H2O2. Dye samples concentration 100 mg/L taken in 250 ml conical flasks that were treated with 30% H2O2 and exposed to sun light the intensity range 60,000-90,000 lux. The impact various parameters decolourisation like initial concentration, pH, solar intensity, additives temperature st...

Single-layer graphene quantum dots (SGQDs) were refluxed with hydrazine (N2H4) to prepare hydrazide-modified SGQDs (HM-SGQDs). Compared with SGQDs, partial oxygen-containing groups have been removed from HM-SGQDs. At the same time, a lot of hydrazide groups have been introduced into HM-SGQDs. The introduced hydrazide groups provide HM-SGQDs with a new kind of surface state, and give HM-SGQDs un...

The relationship between selenium and signal molecules has not been well elucidated. It was found that physiological concentration of selenite, 3 microM, reduced ASK1 activity and induced PI3-kinase (PI3-K)/Akt pathways in HT1080 cells. Duration of these signal molecules by selenite was much longer than that by growth factors and other stresses. The longer duration time of these signal molecule...

UV/H2O2 and UV/peroxodisulfate (PDS) processes were adopted to degrade a typical β-blocker, atenolol (ATL), and the degradation efficiencies under various operational parameters (oxidant dosage, pH, HCO3, humic acid (HA), NO3, and Cl) were compared. Principal factor analysis was also performed with a statistical method for the two processes. It was found that increasing the specific dosage of t...

This study was designed to investigate the effects of 0.5% hydrogen peroxide H2O2 and levamizole drug on immune response of adult male rabbits. Twenty four mature male newzeland were randomly divided into two groups and were treated as follow for four weeks: Control group(C) and H2O2 treated group (GI) which were daily intubated with 0.5% H2O2 in drinking water. After cessation of H2O2 intubati...

Horseradish peroxidase (HRP) encapsulated in liposomes was directly detected by using luminol chemiluminescence (CL) with H2O2 without lysis of liposomes. At a low concentration of H2O2, the initial rate of HRP-catalyzed luminol CL in liposomes was slower than that of HRP-catalyzed luminol CL in a lipid-free bulk solution. The decrease in the initial rate of the CL reaction in liposomes was due...

Microgravity (MG) and space radiation are two major environmental factors of space environment. Ionizing radiation generates reactive oxygen species (ROS) which plays a key role in radiation-induced DNA damage. Interestingly, simulated microgravity (SMG) also increases ROS production in various cell types. Thus, it is important to detect whether SMG could potentiate ROS production induced by ge...

BACKGROUND Trichloroethene and tetrachloroethene are the most common pollutants in groundwater and two of the priority pollutants listed by the U.S. Environmental Protection Agency. In previous studies on TCE and PCE photolysis and photochemical degradation, concentration ranges exceeding environmental levels by far with millimolar concentrations of TCE and PCE have been used, and it is not cle...

Polymorphonuclear leukocytes (PMNs) engaged in phagocytosis produce reactive oxygen species (ROS), such as those that occur in an activated NADPH oxidase reaction, to eliminate ingested microorganisms. The translocation of NADPH oxidase components to produce antimicrobial free radicals from the vesicles to the phagosomes may be important. Hydrogen peroxide (H2O2) derived from O2- has been obser...

A hydrogen peroxide (H2O2) solution was adapted for microwave pretreatment of microcrystalline cellulose, which can be further used for heavy metal adsorption. The H2O2 concentration, temperature, and retention time were the key factors affecting the microwave/hydrogen peroxide pretreatment process. A Box-Benhken design (BBD) with response surface methodology (RSM) was employed to design and op...