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Wang, Shaowei; Zhao, Xinyuan; Wang, Shaochuan; Qian, Jun; He, Sailing
ACS applied materials & interfaces, 09/2016, Letnik: 8, Številka: 37Journal Article
Multifunctional drug delivery and combined multimodal therapy strategies are very promising in tumor theranostic applications. In this work, a simple and versatile nanoplatform based on biologically inspired polydopamine capped gold nanorods (GNR-PDA) is developed. Dopamine, a well-known neurotransmitter associated with many neuronal disorders, can undergo self-polymerization on the surface of GNRs to form a stable PDA shell. Its unique molecular adsorption property, as well as its high chemical stability and biocompatibility, facilitate GNR-PDA as an ideal candidate for drug delivery. Methylene blue (MB) and doxorubicin (DOX) are directly adsorbed on GNR-PDA via electrostatic and/or π–π stacking interactions, forming GNR-PDA-MB and GNR-PDA-DOX nanocomposites, respectively. The GNR-PDA-MB can generate reactive oxygen species (ROS, from MB) or hyperthermia (from GNR-PDA) with high efficiency under deep-red/NIR laser irradiation, while the GNR-PDA-DOX exhibits light-enhanced drug release under NIR laser irradiation. The combined dual-modal light-mediated therapy, by using GNR-PDA-MB photodynamic/photothermal therapy (PDT/PTT) and GNR-PDA-DOX (Chemo/PTT), is carried out and shows remarkable cancer cell killing efficiency in vitro and significant suppression of tumor growth in vivo, which are much more distinct than any single-modal therapy strategy. Our work illustrates that GNR-PDA could be a promising nanoplatform for multifunctional drug delivery and multimodal tumor theranostics in the future.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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