Sunlight-driven photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer polymerization at a large scale.

Photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization is a sustainable and powerful tool to synthesize polymers and copolymers. However, the development of large-scale production and polymerizations using sunlight irradiation remain top challenges for PET-RAFT polymerizations. In this study, conjugated cross-linked phosphine (PPh-CHCP) was explored as a heterogeneous photocatalyst for efficient PET-RAFT polymerization.

A hemicyanine-modified upconversion nanoprobe for NIR-excited evaluating superoxide signaling in drug-induced liver injury.

Background: Drug-induced liver injury (DILI) is the most important standard for the entrance of clinical drugs into the pharmaceutical market. The elevation of superoxide anion (O) during drug metabolism can mediate apoptosis of hepatocytes and further generation of liver damage. Therefore, developing an effective imaging method for evaluating O levels during DILI is of great importance.

NIR-excited imaging of drug-induced liver injury using a superoxide-activated ratiometric upconversion luminescence nanoprobe.

Drug-induced liver injury (DILI) poses a significant risk to human health. Increasing evidence indicates that the superoxide anion (O), as the precursor of the other reactive oxygen species, is key in the pathological processes associated with DILI. Nonetheless, understanding of the mechanisms of DILI is difficult due to the lack of an imaging tool for monitoring the fluctuation of O levels during the progression of DILI.