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- W2765207833 abstract "Multifunctional nanoplatforms with integrated diagnostic and therapeutic functions have attracted tremendous attention. Especially, the second near-infrared (NIR-II) light response-based nanoplatforms hold great potential in cancer theranostic applications, which is because the NIR-II window provides larger tissue penetration depth and higher maximum permissible exposure (MPE) than that of the well-studied first near-infrared (NIR-I) window. Herein, we for the first time present a two-dimensional (2D)-nanoplatform based on Cu2MnS2 nanoplates (NPs) for magnetic resonance imaging (MRI)/multispectral optoacoustic tomography (MSOT) dual-modal imaging-guided photothermal therapy (PTT) of cancer in the NIR-II window. Methods: Cu2MnS2 NPs were synthesized through a facile and environmentally friendly process. A series of experiments, including the characterization of Cu2MnS2 NPs, the long-term toxicity of Cu2MnS2 NPs in BALB/c nude mice, the applications of Cu2MnS2 NPs for in vitro and in vivo MRI/MSOT dual-modal imaging and NIR-II PTT of cancer were carried out. Results: The as-synthesized Cu2MnS2 NPs exhibit low cytotoxicity, excellent biocompatibility as well as high photothermal conversion efficiency (~49.38%) and outstanding photostability. Together with their good T1-shortening effect and strong absorbance in the NIR-I and NIR-II region, the Cu2MnS2 NPs display high-contrast imaging performance both in MRI and MSOT (900 nm laser source). Moreover, the subsequent in vitro and in vivo results demonstrate that the Cu2MnS2 NPs possess excellent PTT efficacy under 1064 nm laser irradiation with a low power density (0.6 W cm-2). In addition, the detailed long-term toxicity studies further confirming the safety of Cu2MnS2 NPs in vivo. Conclusion: We have developed a new 2D Cu2MnS2 NPs as multifunctional theranostic agents for MRI/MSOT dual-modal imaging-guided PTT of cancer in the NIR-II window. Such biocompatible Cu2MnS2 NPs might provide a new perspective for exploring new 2D-based nanoplatforms with improved properties for clinical applications in the future." @default.
- W2765207833 created "2017-11-10" @default.
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- W2765207833 date "2017-01-01" @default.
- W2765207833 modified "2023-09-22" @default.
- W2765207833 title "Copper Manganese Sulfide Nanoplates: A New Two-Dimensional Theranostic Nanoplatform for MRI/MSOT Dual-Modal Imaging-Guided Photothermal Therapy in the Second Near-Infrared Window" @default.
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- W2765207833 doi "https://doi.org/10.7150/thno.21694" @default.
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