Synthesis and Optimization of MoS(2)@Fe(3)O(4)-ICG/Pt(IV) Nanoflowers for MR/IR/PA Bioimaging and Combined PTT/PDT/Chemotherapy Triggered by 808 nm Laser.

Synthesis and Optimization of MoS(2)@Fe(3)O(4)-ICG/Pt(IV) Nanoflowers for MR/IR/PA Bioimaging and Combined PTT/PDT/Chemotherapy Triggered by 808 nm Laser.
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用于 MR/IR/PA 生物成像和 808 nm 激光触发的联合 PTT/PDT/化疗的 MoS2@Fe3O4-ICG/Pt(IV) 纳米花的合成和优化

DOI:
10.1002/advs.201600540
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发表时间:
2017-08
期刊:
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子:
--
通讯作者:
Lin J
Lin J
中科院分区:
其他
文献类型:
--
作者:
Liu B;Li C;Chen G;Liu B;Deng X;Wei Y;Xia J;Xing B;Ma P;Lin J

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精心设计的生物相容性纳米平台同时实现多模态生物成像和治疗功能是现代生物医学应用的高度期望。本文中,通过简单、可控和可扩展的水热方法合成了具有80-180 nm宽尺寸范围的均匀二硫化钼纳米花。MoS 2纳米花在808 nm处有很强的吸收,这使其具有很高的光热转换效率和稳定性。然后,通过聚乙烯亚胺(PEI)功能化的MoS 2与Fe 3 O 4纳米粒子共价接枝,并在MoS2@Fe3O4表面负载吲哚菁绿色分子(ICG,光敏剂)和铂(IV)前药(标记为Pt(IV)前药),设计了一种新型的多功能复合材料MoS2@Fe3O4-ICG/Pt(标记为Mo@ Fe-ICG/Pt)。由此产生的Mo@Fe‐ICG/Pt纳米复合材料可以实现优异的磁共振/红外热/光声三模态生物老化,以及由单一808 nm NIR激光触发的组合光热疗法、光动力疗法和化学疗法的显著增强的抗肿瘤功效,从而为未来的癌症诊断和治疗提供理想的纳米平台。
Elaborately designed biocompatible nanoplatforms simultaneously achieving multimodal bioimaging and therapeutic functions are highly desirable for modern biomedical applications. Herein, uniform MoS2 nanoflowers with a broad size range of 80–180 nm have been synthesized through a facile, controllable, and scalable hydrothermal method. The strong absorbance of MoS2 nanoflowers at 808 nm imparts them with high efficiency and stability of photothermal conversion. Then a novel multifunctional composite of MoS2@Fe3O4‐ICG/Pt(IV) (labeled as Mo@Fe‐ICG/Pt) is designed by covalently grafting Fe3O4 nanoparticles with polyethylenimine (PEI) functionalized MoS2, and then loading indocyanine green molecules (ICG, photosensitizers) and platinum (IV) prodrugs (labeled as Pt(IV) prodrugs) on the surface of MoS2@Fe3O4. The resulting Mo@Fe‐ICG/Pt nanocomposites can achieve excellent magnetic resonance/infrared thermal/photoacoustic trimodal biomaging as well as remarkably enhanced antitumor efficacy of combined photothermal therapy, photodynamic therapy, and chemotherapy triggered by a single 808 nm NIR laser, thus leading to an ideal nanoplatform for cancer diagnosis and treatment in future.
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