Acid-Sensitive Nanogels for Synergistic Chemo-Photodynamic Therapy

摘要

Herein, a novel kind of intelligent nanogels have been designed, which can spatiotemporally control the release of drug (doxorubicin) and photosensitizers (porphyrins) to combine chemotherapy and photodynamic therapy. Further, the fluorescing properties of porphyrins make it possible to be used as a kind of diagnostic bio-imaging agents. In vitro release assays confirm that DOX-loaded nanogels show obvious intracellular pH-sensitive property. The intracellular experiments further prove that drug-loaded nanogels has the significantly antitumor efficacy due to the combination of chemotherapy and photodynamic therapy, which made this drug delivery system hold great potential applications for further cancer treatment.