Abstract
Photodynamic therapy (PDT) is regarded as an alternative anti-tumor therapy which involves the administration of photosensitizers (PSs) and irradiation with specific light. However, conventional PDT therapy has been limited to the efficiency of PS delivery. A nanocarrier system could provide an effective platform for PS delivery and improve the efficiency of antitumor PDT. In this article, we prepared a complex consisting of aluminum phthalocyanine (AlPcS) and CdSe/CdZnS core-shell structure QDs and investigated the interaction between the complex and tumor cells. A more significant internalization of the conjugation was observed compared to free AlPcS via confocal fluorescence imaging. The tumor cells exhibited an obvious apoptotic trend after QD–AlPcS-mediated PDT.
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