The design, synthesis, and investigation of new molecular oxygen probes for bioimaging, based on phosphorescent transition metal complexes are among the topical problems modern chemistry advanced bioimaging. Three iridium [Ir(N^C)2(N^N)]+ with cyclometallating 4-(pyridin-2-yl)-benzoic acid derivatives different di-imine chelate ligands have been synthesized characterized by mass spectrometry NM...

Rare-earth-doped inorganic nanocrystals are an important class of nanoparticles for bioimaging applications due to the facility providing them with tailored emissions in visible and near-infrared regions electromagnetic spectrum. Recently it has become interest engineer dopant composition these materials order enable multiplexed lifetime imaging autofluorescence-free vivo bioimaging. Herein we ...

In this paper we review the recent progress toward single-particle imaging of biological molecules at x-ray free-electron laser (XFEL) facilities. We describe the progression from biological imaging at synchrotrons to imaging at XFELs, discuss recent successes, and point out specific challenges associated with imaging at XFEL facilities.

The cover picture shows tagged nanomaterials in a cell, which display excellent fluorescence and MRI contrasts for multimodal biomolecular, cell vivo bioimaging. See the Review by Vasudevanpillai Biju co-workers (DOI:10.1002/tcr.202200253).