Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)O for Efficient Oxygen Evolution Reaction.

Fabricating efficient oxygen evolution reaction (OER) electrocatalysts is crucial for water electrocatalysis. Herein, the spinel-type high-entropy oxides of (Co, Fe, Mn, Ni, Cr)O were synthesized through the high-temperature calcination approach. The influences of calcination temperatures on structures and electrochemical properties were investigated.

Clinical metabolomics analysis of therapeutic mechanism of Tongmai Yangxin Pill on stable angina.

Tongmai Yangxin Pill (TMYX) is a traditional Chinese medicine for the treatment of angina and arrhythmia. Although its clinical application is extensive, and the curative effect is significant, little information is available on the molecular biological basis and therapeutic mechanism of TMYX for the treatment of stable angina. In this study, we analyzed serum samples of clinical patients collected from seven different clinical units in China after oral administration of TMYX using ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF-MS).