We report a theoretical study of the first silver-dependent enantiodivergent gold-catalysed reaction. The combination single chiral binuclear gold(I) chloride complex and silver perchlorate catalyses asymmetric intramolecular hydroamination alkenes affords both enantiomers products by applying simple solvent change from toluene to methanol. A gold-silver adduct that occurs only in methanol appe...

Glucose-6-phosphate dehydrogenase (G6PD) enzyme catalyses the first step in pentose phosphate pathway (conversion of glucose-6-phosphat to 6-phospho gluconat) which provides cells with pentoses and reduction power in the form of NADPH. In the present study we have analyzed the G6PD gene mutations in 76 patients with a history of favism in Khorasan province in Iran. DNA samples were analyzed for...

Graphene and boron nitride (BN) foams, as two types of three-dimensional (3D) nanomaterials consisting two-dimensional (2D) nanosheets, can inherit a series excellent properties the 2D individuals. The internal 3D network prevent aggregation or restacking between isolated graphene BN provide highway for phonon/electron transports. Moreover, interconnected porous structure creates continual chan...

Methyltransferases that use S-adenosylmethionine (AdoMet) as a cofactor to catalyse 5-methyl uridine (m(5)U) formation in tRNAs and rRNAs are widespread in Bacteria and Eukaryota, and are also found in certain Archaea. These enzymes belong to the COG2265 cluster, and the Gram-negative bacterium Escherichia coli possesses three paralogues. These comprise the methyltransferases TrmA that targets ...

We report the decomposition of formic acid to hydrogen and carbon dioxide, catalysed by a NiRu complex originally developed as a [NiFe]hydrogenase model. This is the first example of H2 evolution, catalysed by a [NiFe]hydrogenase model, which does not require additional energy.

The oxidation of methane, the main component natural gas, to selectively form oxygenated chemical feedstocks using molecular oxygen has been a long-standing grand challenge in catalysis. Here, gold nanoparticles supported on zeolite ZSM-5, we introduce method oxidize methane methanol and acetic acid water at temperatures between 120 240 °C absence any added coreductant. Electron microscopy reve...