Semi-hydrogenation of alkynes to alkenes over Pd nanoparticles embedded in MoC prepared from a high-temperature pulse.

Pd nanoparticles embedded in MoC were successfully prepared from a high-temperature pulse, and are efficient for semi-hydrogenation of alkynes to alkenes, where the embedded Pd sites possessed appropriate alkyne adsorption but suppressed alkene adsorption, thus exhibiting both high activities and good alkene selectivities in the hydrogenation of various alkynes.

Single-molecule transformation and analysis of glutathione oxidized and reduced in nanopore.

The determination of glutathione reduced (GSH) or oxidized (GSSG) in bulk solution has been reported previously. However, it is critically important to set up a simple and label-free method to recognize GSSG and GSH selectively and dynamically, especially at a single-molecule level. Here we report a novel nanopore method to recognize GSSG based on a newly synthesized per-6-quaternary ammonium-β-cyclodextrin (p-QABCD), which is used as both the molecular adaptor of protein nanopore and the recognizing element of GSSG.