Chitosan-genipin hydrogel films were formed wells and lysozyme solution was added. At scheduled times, supernatants were aspirated from the wells and FI of the liquid was measured. Supernatant from hy
Extended data Fig 1b: Excitation and emission spectra of TAC-Rh with increasing K+ concentration at pH = 7.0. Extended data Fig 1c: Normalized O/R ratio of TAC-Rh/Alexa Fluor 647 with increasing [K+]