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Correction for 'A perylene-based membrane intercalating conjugated oligoelectrolyte with efficient photodynamic antimicrobial activity' by Niu Niu et al., Chem. Commun., 2019, 55, 4395-4398.

A rational design of a benzoperylene probe BP-3 with positive charge allows for turn-on excimer emission, and wash-free cell membrane imaging. BP-3 possesses excellent chemical, thermal and photo stability. And the Stokes shift of the excimer emission is considerably large (90-100 nm), which very much avoids the background fluorescence interference.

A perylene probe PC4 is exploited as a membrane intercalating conjugated oligoelectrolyte for efficient antimicrobial photodynamic therapy. PC4 can also serve as a fluorescent microbial cell death marker.

A perylene probe PC4 is explored as a smart lysosome-targeted photosensitizer. It can efficiently kill cancer cells and also mark dead cells with bright fluorescence emission in nuclei for real-time monitoring and assessing of the photodynamic therapeutic efficiency.

A cancer cell specific aptamer was labeled with an aggregation-induced emission (AIE) probe for the first time. Using it as a light-up bioprobe, a specific cancer cell detection method is developed.

Substrate hydrolysis was utilized to trigger a "top-down" etching process for the generation of fluorescent gold nanoclusters, and the changes in emission intensity of the assay solution provide a facile way for the sensing of enzyme activity.

A label free continuous assay for protease activity and inhibitor screening has been developed. A protease (trypsin) could digest hemoglobin. Free heme molecules were released. Strong π-π stacking and hydrophobic interactions with the perylene probe resulted in efficient quenching of the probe's monomer fluorescence.

Rigid boomerang shaped triphenylamine functionalized bis-β-diketone-boron difluoride without alkyl chain and H-bonding unit exhibits good gelation ability in some mixed organic solvents directed by optimally balanced π-π interactions.