An oligomeric nanozyme with ultrafast electron transfer can achieve high catalytic activity and alleviate acute brain injury.

Highly fluorescent carbon dots (CDs) with quantum yields up to 96% were rapidly synthesized within 5 min via microwave irradiation with controllable temperature. Multifunctional bioimaging including live cell staining, cell-specific targeting and in vivo imaging were further demonstrated by using high quality and low cost CDs as contrast agents.

Nonblinking carbon dots have been developed by stacking abundant aromatic domains onto a carbon core, which enables long-term imaging and tracking of receptors on a live cell membrane.