Transition metal dichalcogenides (TMDs) represent a class of semiconducting two-dimensional (2D) materials with exciting properties. In particular, defects in 2D-TMDs and their molecular interactions the environment can crucially affect physical chemical However, mapping spatial distribution reactivity liquid remains challenge. Here, we demonstrate large area reactive sulfur-deficient aqueous s...

Widespread commercialization of high-energy-density lithium–sulfur (Li–S) batteries is difficult due to the lithium polysulfide, Li2Sn (n = 4, 6, 8), shuttle effect. Efficient adsorption/conversion species on an electrocatalytic surface can suppress Modeling adsorption using density functional theory (DFT) calculations has contributed significantly toward understanding their anchoring mechanism...

Growth inhibition by methotrexate (MTX) of a cultured mouse mammary carcinoma FM3A line and its mutants deficient in thymidine kinase and thymidylate synthetase was studied under a variety of conditions. In medium containing 10 microM thymidine, the thymidylate synthetase-deficient mutants were slightly more resistant to MTX than the wild-type line and the thymidine kinase-deficient mutant. The...

BACKGROUND Food acidulants, β-carotene-rich vegetables and sulfur compound-rich Allium spices are known to improve zinc bioaccessibility from food grains. This animal study evaluated the positive influence of these promoters of zinc bioaccessibility on zinc status during zinc repletion in Wistar rats previously rendered zinc-deficient by feeding a zinc-deficient semi-synthetic diet for 4 weeks....

Growth inhibition by methotrexate (MTX) of a cultured mouse mammary carcinoma FM3A line and its mutants deficient in thymidine kinase and thymidylate synthetase was studied un der a variety of conditions. In medium containing 10 ¡IMthy midine, the thymidylate synthetase-deficient mutants were slightly more resistant to MTX than the wild-type line and the thymidine kinase-deficient mutant. The ...

19 ThiI has been identified as an essential enzyme involved in the biosynthesis of thiamine and the 20 tRNA thionucleoside modification, 4-thiouridine. In Escherichia coli and Salmonella enterica, 21 ThiI acts as a sulfurtransferase, receiving the sulfur donated from the cysteine desulfurase IscS 22 and transferring it to the target molecule or additional sulfur carrier proteins. However, in 23...

Normal fibroblasts in medium containing 0.02 mM CaCl2 arrested growth within 24 hr, whereas Duchenne muscular dystrophy fibroblasts continued to grow for 5 days, albeit at 40% of their rate in standard medium (1.8 mM CaCl2). Moreover, Duchenne cells in calcium-deficient medium showed an enhanced rate of protein synthesis (60% over the rate in standard medium), whereas normal cells were unaffect...