Monomolecular VB2-doped MOFs for photocatalytic oxidation with enhanced stability, recyclability and selectivity

2019 ◽  
Vol 7 (47) ◽  
pp. 26934-26943 ◽  
Author(s):  
Ruoqian Zhang ◽  
Xinhua Song ◽  
Yuanyuan Liu ◽  
Peng Wang ◽  
Zeyan Wang ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Benzyl Alcohol ◽  
Photocatalytic Oxidation ◽  
High Selectivity ◽  
Reactive Oxygen ◽  
Alcohol Oxidation ◽  
Oxygen Species ◽  
Benzyl Alcohol Oxidation ◽  
Enhanced Stability

Monomolecular VB2 was immobilized onto UiO-66 taking advantage of the ligand defects in the latter, and 1O2 became the only reactive oxygen species, resulting in high selectivity towards benzyl alcohol oxidation.

Improving photocatalytic activity of benzyl alcohol oxidation by Z-scheme SnS/g-C3N4

2021 ◽  
Author(s):  
Yan Li ◽  
Chengsi Pan ◽  
Guang-Li Wang ◽  
Yan Leng ◽  
Pingping Jiang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Benzyl Alcohol ◽  
Photocatalytic Oxidation ◽  
High Selectivity ◽  
Alcohol Oxidation ◽  
Benzyl Alcohol Oxidation ◽  
Separation Rate ◽  
Oxidation Of Benzyl Alcohol ◽  
Key Factor ◽  
Carrier Separation

So far, photocatalytic oxidation of benzyl alcohol to benzaldehyde effectively with high selectivity is still a great challenge. It is reported that the carrier separation rate is the key factor...

Colorimetric and Fluorescent Probe for Hypochlorite with High Selectivity

2013 ◽  
Vol 295-298 ◽  
pp. 475-478 ◽  
Author(s):  
Zhi Xiang Han ◽  
Ming Hui Du ◽  
Guo Xi Liang ◽  
Xiang Yang Wu
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Solution ◽  
Detection Limit ◽  
Fluorescent Probe ◽  
Rhodamine B ◽  
High Selectivity ◽  
Reactive Oxygen ◽  
Living Cells ◽  
Oxygen Species ◽  
Turn On

Rhodamine B thiohydrazide (RBS) was firstly employed as turn-on fluorescent probe for hypochlorite in aqueous solution and living cells. It exhibits a stable response to hypochlorite from 1.0×10-6to 1.0×10-5M with a detection limit of 3.3×10-7M. The response of this probe to hypochlorite is fast and highly selective compared with other reactive oxygen species (such as.OH,1O2, H2O2) and other common anions (such as X-, ClO2-, ClO4-, NO3-, NO2-, OH-, Ac-, CO32-, SO42-).

Mitochondria as a source of reactive oxygen species

2009 ◽  
pp. c3 ◽  
Author(s):  
Helena M. Cochemé ◽  
Michael P. Murphy
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen ◽  
Oxygen Species

Clinical aspects of reactive oxygen and nitrogen species

2004 ◽  
Vol 71 ◽  
pp. 121-133 ◽  
Author(s):  
Ascan Warnholtz ◽  
Maria Wendt ◽  
Michael August ◽  
Thomas Münzel
Keyword(s):  
Oxidative Stress ◽  
Reactive Oxygen Species ◽  
Risk Factor ◽  
Endothelial Dysfunction ◽  
Vascular Tissue ◽  
Rapid Development ◽  
Reactive Oxygen ◽  
Clinical Aspects ◽  
No Production ◽  
Oxygen Species

Endothelial dysfunction in the setting of cardiovascular risk factors, such as hypercholesterolaemia, hypertension, diabetes mellitus and chronic smoking, as well as in the setting of heart failure, has been shown to be at least partly dependent on the production of reactive oxygen species in endothelial and/or smooth muscle cells and the adventitia, and the subsequent decrease in vascular bioavailability of NO. Superoxide-producing enzymes involved in increased oxidative stress within vascular tissue include NAD(P)H-oxidase, xanthine oxidase and endothelial nitric oxide synthase in an uncoupled state. Recent studies indicate that endothelial dysfunction of peripheral and coronary resistance and conductance vessels represents a strong and independent risk factor for future cardiovascular events. Ways to reduce endothelial dysfunction include risk-factor modification and treatment with substances that have been shown to reduce oxidative stress and, simultaneously, to stimulate endothelial NO production, such as inhibitors of angiotensin-converting enzyme or the statins. In contrast, in conditions where increased production of reactive oxygen species, such as superoxide, in vascular tissue is established, treatment with NO, e.g. via administration of nitroglycerin, results in a rapid development of endothelial dysfunction, which may worsen the prognosis in patients with established coronary artery disease.

Fas ligand expression in rat kupffer cells in response to lipopolysaccharide is mediated by reactive oxygen species

2001 ◽  
Vol 120 (5) ◽  
pp. A361-A361
Author(s):  
K UCHIKURA ◽  
T WADA ◽  
Z SUN ◽  
S HOSHINO ◽  
G BULKLEY ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Kupffer Cells ◽  
Fas Ligand ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Ligand Expression
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