CAT and melanoma: A strong incorporation of HA@mgp-C3N4-HMME/CAT into murine melanoma B16-F10 cell lines could be observed by confocal microscopy and the apoptosis rate was higher than all the others conditions ((HA@mgp-C3N4 + LED, HMME, HA@mgp-C3N4-HMME, HA@mgp-C3N4-HMME/CAT) after light illumination (LED, 3000 mW∙cm−2 for 2 min).