搜索结果: 1-15 共查到“理学 hydrogen peroxide”相关记录26条 . 查询时间(0.167 秒)
Protection of Bovine Mammary Epithelial Cells from Hydrogen Peroxide-Induced Oxidative Cell Damage by Selenium
selenomethionine selenoprotein synthesis arachidonic acid metabolism mitogen-activated protein kinase
2018/3/5
The uncontrolled release of arachidonic acid (ARA) and its metabolism by lipoxygenase (LOX) pathway can induce
and aggravate cellular oxidative stress. Selenium (Se) is an integral part of some antio...
Serum xanthine oxidoreductase: Hydrogen peroxide production rates in mammalian sera
Circulating serum xanthine oxidoreductase hydrogen peroxide animal serum
2015/1/28
In the African Cape buffalo, circulating serum xanthine oxidoreductase (XOR) produces trypanotoxic levels of hydrogen peroxide (H2O 2). Previous, preliminary studies suggest that mammalian serum XOR H...
Hydrogen peroxide dynamics in an agricultural headwater stream: Evidence for significant nonphotochemical production
Hydrogen peroxide dynamics nonphotochemical production
2014/4/2
Hydrogen peroxide (H2O2
) plays key roles in aquatic systems, including metal redox cycling and degradation
of organic matter into bioavailable forms. Abiotic photoproduction, via photo-oxidation of...
Heterogeneous Uptake of Hydrogen Peroxide on Mineral Oxides
Kinetics Hydrogen peroxide Heterogeneous uptake Atmospheric lifetime
2012/4/5
The interaction of mineral oxides (α-Al2O3, MgO, Fe2O3, and SiO2) with hydrogen peroxide was investigated using the Knudsen cell reactor. The initial reactive uptake coefficients for the commercially ...
Generation of hydrogen peroxide from San Joaquin Valley particles in a cell-free solution
hydrogen peroxide San Joaquin Valley particles a cell-free solution
2011/2/24
Epidemiological studies have shown a correlation between exposure to ambient particulate matter (PM) and adverse health effects. One proposed mechanism of PM-mediated health effects is the generation ...
Heterogeneous uptake of gaseous hydrogen peroxide by Gobi and Saharan dust aerosols: a potential missing sink for H2O2 in the troposphere
gaseous hydrogen peroxide Gobi and Saharan dust aerosols H2O2 the troposphere
2010/8/16
The first direct laboratory measurements of gaseous hydrogen peroxide uptake by authentic Gobi and Saharan dust aerosol particles as a function of relative humidity (RH) have been carried out in an en...
Nano-Molar Level Hydrogen Peroxide Detection by Horseradish Peroxidase Adsorbed Cup-Stacked Carbon Nanotube Electrodes and Applications to L-Glutamate Detection
Nano-Molar Level Hydrogen Peroxide Detection by Horseradish Peroxidase Adsorbed Cup-Stacked Carbon Nanotube Electrodes and Applications to L-Glutamate Detection
2010/9/13
We have developed a simple fabrication method of a highly sensitive direct electron transfer-type electrochemical biosensor for hydrogen peroxide by use of cup-stacked carbon nanotubes (CSCNTs). The C...
Dark production of hydrogen peroxide in the Gulf of Alaska
Gulf of Alaska hydrogen peroxide
2014/4/16
Dark H2O2 production rates were measured in samples collected in the Gulf of Alaska. We used a simple, novel
method for determining absolute rates of dark production and decay of H2O2
, both of whic...
Dark production of hydrogen peroxide in the Gulf of Alaska
Gulf of Alaska hydrogen peroxide
2014/4/16
Dark H2O2 production rates were measured in samples collected in the Gulf of Alaska. We used a simple, novel
method for determining absolute rates of dark production and decay of H2O2
, both of whic...
The role of polysaccharides and diatom exudates in the redox cycling of Fe and the photoproduction of hydrogen peroxide in coastal seawaters
polysaccharides and diatom exudates the redox cycling of Fe the photoproduction of hydrogen peroxide coastal seawaters
2010/1/21
The effect of artificial acidic polysaccharides (PS) and exudates of Phaeodactylum tricornutum on the half-life of Fe(II) in seawater was investigated in laboratory experiments. Strong photochemical h...
Prussian Blue Electrodeposited on Nano Ag-coated Multiwalled Carbon Nanotubes Composite for the Determination of Hydrogen Peroxide
Prussian Blue Electrodeposited Nano Ag-coated Multiwalled Carbon Nanotubes Composite Hydrogen Peroxide
2010/9/17
A prussian blue (PB) electrodeposited on nano Ag-coated multiwalled carbon nanotubes (nano Ag-MWNTs) was reported. Also a PB/nano Ag-MWNTs composite modified glass carbon (GC) electrode was used to in...
Layer-by-layer Assembly of Prussian Blue and Carbon Nanotube Composites with Poly(diallyldimethylammonium chloride) for the Sensitive Detection of Hydrogen Peroxide
Layer-by-layer Assembly Prussian Blue Carbon Nanotube Composites Poly Hydrogen Peroxide
2010/9/20
Prussian blue (PB) was deposited on multi-walled carbon nanotubes (MWCNT) in an aqueous solution. Multi-layer composites of the MWCNT-PB hybride material were obtained by layer-by-layer assembly with...
Release of Major Ions and Hydrogen Peroxide from Homogeneous,Melting Snow
Major Ions Hydrogen Peroxide Melting Snow
2009/10/26
We undertook two laboratory experiments to study the change of concentrations
and the preferential elution of major ions and hydrogen peroxide during melting
of a homogeneous snow pack. The elution ...
Contrasting atmospheric boundary layer chemistry of methylhydroperoxide（CH3OOH）and hydrogen peroxide（H2O2）above polar snow
atmospheric boundary layer chemistry CH3OOH H2O2 polar snow
2009/6/2
Atmospheric hydroperoxides (ROOH) were measured at Summit, Greenland (72.97° N, 38.77° W) in summer 2003 (SUM03) and spring 2004 (SUM04) and South Pole in December 2003 (SP03). The two dominant hydrop...
The annual cycle of hydrogen peroxide：an indicator of chemical instability?
hydrogen peroxide chemical instability
2009/2/27
A box model has been used to study the annual cycle in hydrogen peroxide concentrations with the objective of determining whether the observed difference in summer and winter values reflects instabili...