Moon Young Yang

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The DNA religation reaction of yeast type II topoisomerase (topo II) was investigated to elucidate its metal-dependent general acid/base catalysis. Quantum mechanical/molecular mechanical calculations were performed for the topo II religation reaction, and the proton transfer pathway was examined. We found a substrate-mediated proton transfer of the topo II(More)
Despite the excellent biocompatibility and antifouling effect of poly(ethylene glycol) (PEG), the high steric hindrance, limited chemical functionality, and low ligand multivalency of PEGylated nanocarriers often lead to inefficient cell targeting and intracellular trafficking. Hence, a new structure of hydrophilic corona allowing a higher ligand density(More)
Immobilization of nanometer-sized metal catalysts into porous substrates can stabilize the catalysts and allow their recycled uses, while immobilization often sacrifices the active surface of catalysts and degenerates the local microenvironments, resulting in the reduction of the catalytic activity. To maintain a high activity of immobilized nanocatalysts,(More)
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