This article, published in Angewandte Chemie International Edition, discusses various research articles in the field of chemistry. One research article by Christine Cardin, Andrew Kellett, and others explores the binding of a ruthenium diimine complex to DNA, specifically focusing on its sequence and enantiospecificity. Another research article by Travis Dudding, Thomas Lectka, and colleagues presents a strategy for site-selectivity in complex molecules based on metal ion-induced large fragment deactivation. Xiaohao Liu and his team develop a universal strategy for constructing In2O3-supported diatomic Ir-Pd sites for CO2 hydrogenation to methanol. Lastly, Yu Huang, Fan Xia, and their team develop a multi-function biosensing system based on supersandwich DNA probes and solid-state nanochannels. [Extracted from the article]