Fig. 6. Dual-lock strategy for CL emission enhancement. (a) Reaction scheme of QM-B-CF reacting with hydrogen peroxide to generate a stable fluorescent intermediate (QM-O⁻-CF), and following irradiation with light, the generation of a CL signal. (b) Comparison of CL signal from QM-B-CF with and without white light irradiation and Luminol (c) 3D image of QM-B-CF CL signal. Reproduced from ref. 45 with permission from Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Copyright 2020.