fabricated CPy-based Odots (CPy-Odots, Figure ) by encapsulating the high-performance TADF emitter CPy into DSPE-PEG2000, an amphiphilic and biocompatible polymer that was chosen as the encapsulation matrix due to its ability to encapsulate small, neutral, organic compounds. The CPy-Odots are water-soluble (λPL = 540 nm, ΦPL of 38% in Milli-Q water), with a τd = 9.3 μs under an ambient atmosphere. CPy-Odots were consequently employed in time-resolved and confocal fluorescence imaging of living Hela cells and in living zebrafish. Different from Odots, Tsuchiya et al.