Near Infra-Red-Light Responsive Cartilage Acellularized Matrix Derived Injectable Hydrogels for Stimuli-Responsive Drug Release Applications.
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초록
내용
In this work, we developed doxorubicin (DOX)-loaded novel type of NIR-responsive and injectable hydrogels derived from cartilage acellularized matrix (CAM), by using a coumarin-based and water-soluble cross-linker. The hydrogels were developed by mixing norbornene (Nb) functionalized CAM with various feed ratios of the cross-linker. The drug release experiments demonstrated a rapid and sustained release of the DOX from the hydrogels upon NIR exposure. Interestingly, it was also observed that irradiation time was an important parameter to control the DOX release rate from the hydrogels. The empty-hydrogels were non-toxic to tested cell-lines and doxorubicin (DOX)-loaded hydrogels induced anti-cancer activity in cancer cells, after NIR treatment. Therefore, the NIR photo-responsive injectable hydrogels could be promising candidates for stimuli-responsive drug delivery applications.