In dimethylsulfoxide solution, N-protonated melanostatin molecules in part take the beta-turn structure and the trans carboxamide NH proton and carbonyl oxygen of the proline residue form an intramolecular hydrogen bond.doi:10.1111/j.1432-1033.1978.tb12559.xTsutomu HIGASHIJIMA...
HO has an important role in both ozone destruction mechanisms, since it combines with NO2 to form the relatively inert HNO3 molecule and converts the inactive HCl formed from Cl + CH4 back into active Cl atoms. In the stratosphere the ‘odd hydrogen’ species H, HO, and HO2 are formed ...
In 0.2mol/L HCl–0.22mol/L HNO3 medium, trace Hg2+ catalyzed NaH2PO2 reduction of HAuCl4 to form gold nanoparticles (AuNPs), which exhibited a strong resonance Rayleigh scattering (RRS) effect at 370nm. With increasing of [Hg2+], the RRS effect enhanced due to more AuNP generated from ...