Results 51 to 60 of about 158,830 (405)
Irradiation of 1-substituted benzotriazole arylhydrazones 3a–c, 4a,b and 5a,b with a 16 W low pressure mercury arc-lamp (254 nm) for 24 h gave phenanthridin-6-yl-2-phenyldiazines 9a–c, phenanthridin-6(5H)-ones 10a–c, 1-anilinobenzimidazoles 11a–c, 2-aryl-
Nouria A. Al-Awadi+3 more
doaj +1 more source
Direct photolysis of carbonyl compounds dissolved in cloud and fog~droplets [PDF]
Gas-phase photolysis is an important tropospheric sink for many carbonyl compounds; however the significance of direct photolysis of these compounds dissolved in cloud and fog droplets is uncertain.
S. A. Epstein+3 more
doaj +1 more source
The Atmospheric Chemistry of GJ 1214b: Photochemistry and Clouds [PDF]
Recent observations of the transiting super-Earth GJ 1214b reveal that its atmosphere may be hydrogen-rich or water-rich in nature, with clouds or hazes potentially affecting its transmission spectrum in the optical and very-near-IR.
Asplund+37 more
core +1 more source
Cold atmospheric pressure plasma jets (plasma) operated in ambient air provide a rich source of reactive oxygen and nitrogen species (RONS), which are known to influence biological processes important in disease.
B. Ghimire+9 more
semanticscholar +1 more source
Photochemical and Structural Studies on Cyclic Peptide Models
Ultra-violet (UV) irradiation has a significant impact on the structure and function of proteins that is supposed to be in relationship with the tryptophan-mediated photolysis of disulfide bonds. To investigate the correlation between the photoexcitation
Tamás Milán Nagy+8 more
doaj +1 more source
Confronted with the severe situation that the pace of resistance acquisition is faster than the clinical introduction of new antibiotics, health organizations are calling for effective approaches to combat methicillin‐resistant Staphylococcus aureus ...
Pu-Ting Dong+8 more
semanticscholar +1 more source
Direct and indirect photolysis of triclocarban in the presence of dissolved organic matter
Photolysis is an important attenuation pathway for the removal of wastewater effluent organic micropollutants from surface waters. In this work, direct and indirect processes leading to the degradation of the disinfectant, triclocarban were studied ...
Tamara D. Trouts, Yu-Ping Chin
doaj +1 more source
Photolysis of pure solid O3 and O2 films at 193 nm [PDF]
We studied quantitatively the photochemistry of solid O3 and O2 films at 193 nm and 22 K with infrared spectroscopy and microgravimetry. Photolysis of pure ozone destroyed O3, but a small amount of ozone remained in the film at high fluence. Photolysis of pure O2 produced O3 in an amount that increased with photon fluence to a stationary level.
arxiv +1 more source
Shape resonances in H$_2$ as photolysis reaction intermediates [PDF]
Shape resonances in H$_2$, produced as reaction intermediates in the photolysis of H$_2$S precursor molecules, are measured in a half-collision approach. Before desintegrating into two ground state H atoms, the reaction is quenched by two-photon Doppler-free excitation to the F electronically excited state of H$_2$.
arxiv +1 more source
Photochemical transformation of perfluoroalkyl acid precursors in water using engineered nanomaterials [PDF]
The production of perfluoroalkyl acids (PFAAs) has been phased out over recent decades; however, no significant decline in their environmental concentrations has been observed.
Dai, Yunrong+4 more
core