The Clean Air Action implemented by the Chinese government in 2013 has greatly improved air quality North China Plain (NCP). In this work, we report changes chemical components of atmospheric fine particulate matter (PM2.5) at four NCP sampling sites from 2012/2013 to 2017 investigate impacts and drivers on aerosol chemistry, especially for secondary inorganic aerosols (SIA). During observation...

Sunmmiary. Particuilate cell wall polysaccharide synthetase from oat coleoptiles could use either guanosine diphosphate glucose or turidine diphosphate glucose; the latter was a much more effective glucose donor. The neutral polymer derived from uridine diphosphate glu-cose utilization yielded, after cellulase digestion, mostly cellobiose and to a lesser extent a suibstance tentatively identifi...

the resource intensive human activities (such as mining and extraction of mineral oils for betterment of life and modernization of society) have increased environmental pollution several folds. products of mining and petrochemical industries are advantageous for the modern society. but waste generated such as btex from such industries are carcinogenic, toxic and causes adverse effects on enviro...

When a nematic liquid crystal is doped with a large amount of a liquid crystalline azobenzene compound (15 wt %), the photoisomerization of azobenzene under UV and visible light irradiation can give rise to reversible and interconvertible photochemical phase transition and photochemical phase separation. Both normal and reverse modes of photocontrolled switching of transmittance through crossed...

The usage of nanoparticles became inevitable in medicine and other fields when it was found that they could be administered to hosts act as oxidants or antioxidants. These oxidative pro-oxidants induce stress-mediated toxicity through the generation free radicals. Some can antioxidants scavenge these radicals help maintaining normal metabolism. oxidant antioxidant properties rely on various fac...

1. Advantages of Chemical Redox Agents 878 2. Disadvantages of Chemical Redox Agents 879 C. Potentials in Nonaqueous Solvents 879 D. Reversible vs Irreversible ET Reagents 879 E. Categorization of Reagent Strength 881 II. Oxidants 881 A. Inorganic 881 1. Metal and Metal Complex Oxidants 881 2. Main Group Oxidants 887 B. Organic 891 1. Radical Cations 891 2. Carbocations 893 3. Cyanocarbons and ...