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  • Title: Photosensitizer-conjugated Cu-In-S heterostructured nanorods for cancer targeted photothermal/photodynamic synergistic therapy.
    Author: Chen SH, Huang WW, Dehvari K, Ling YC, Ghule AV, Tsai SL, Chang JY.
    Journal: Mater Sci Eng C Mater Biol Appl; 2019 Apr; 97():793-802. PubMed ID: 30678970.
    Abstract:
    Photo-activated therapy is a non-invasive and promising medical technology for the treatment of cancers. Herein, we present Ce6-HA-CIS phototherapeutic nanohybrids composed of Cu-In-S (CIS) heterostructured nanorod (HS-rod), chlorin e6 (Ce6), and hyaluronic acid (HA) for the use in targeted photodynamic/photothermal therapy (PDT/PTT). In the Ce6-HA-CIS nanohybrids, the CIS HS-rod was investigated as a PTT agent to convert light into thermal energy, with Ce6 acting as a PDT agent to generate singlet oxygen (1O2). HA encapsulated the surface of the CIS HS-rod and aided the hydrophobic CIS HS-rod in achieving aqueous solubility. HA also acts as a tumor-specific targeting vector of cancer cells bearing the cluster determinant 44 receptor. Under light irradiation, the fabricated Ce6-HA-CIS nanohybrids exhibited high photothermal conversion efficiency, good photo-stability, and satisfactory photodynamic activity. In vitro and in vivo experiments demonstrated that Ce6-HA-CIS showed low cytotoxicity and synergistic photodynamic and photothermal cancer cell killing effects as compared to PTT or PDT agents alone. Therefore, these phototherapeutic nanohybrids may enhance cancer therapy in future clinical applications.
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