In Situ One-Pot Synthesis of MOF-Polydopamine Hybrid Nanogels with Enhanced Photothermal Effect for Targeted Cancer Therapy.

In Situ One-Pot Synthesis of MOF-Polydopamine Hybrid Nanogels with Enhanced Photothermal Effect for Targeted Cancer Therapy.
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原位一锅法合成具有增强光热效应的 MOF-聚多巴胺杂化纳米凝胶用于靶向癌症治疗

DOI:
10.1002/advs.201800287
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发表时间:
2018-06
期刊:
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子:
--
通讯作者:
Chen Q
Chen Q
中科院分区:
其他
文献类型:
--
作者:
Wang D;Wu H;Zhou J;Xu P;Wang C;Shi R;Wang H;Wang H;Guo Z;Chen Q

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本文设计了一种简单的单锅方法,通过在MnCo骨架中原位杂交多巴胺单体,制备了一种多功能金属有机骨架(MOF)基杂化纳米凝胶。合成的混合纳米粒子(称为MCP)与用类似方法合成的纯聚多巴胺或MnCo纳米粒子(NPs)相比,显示出更高的光热转换效率,因此在体内光热治疗(PTT)中显示出巨大的潜力。由于MnCo骨架中的高自旋Mn - N6 (S = 5/2), MCP NPs有望具有t1阳性磁共振成像能力。为了提高MCP NPs作为PTT药物的治疗效果,分别用功能性聚乙二醇(PEG)和巯基末端环精氨酸-甘氨酸-天冬氨酸肽对MCP NPs进行修饰:一是提高MCP NPs在体内的稳定性、生物相容性和血液循环时间;二是增加MCP‐PEG NPs在肿瘤中的蓄积,提高其作为光热剂的治疗效果。
Herein, a simple one‐pot way is designed to prepare a type of multifunctional metal–organic framework (MOF)‐based hybrid nanogels by in situ hybridization of dopamine monomer in the skeleton of MnCo. The resultant hybrid nanoparticles (named as MCP) show enhanced photothermal conversion efficiency in comparison with pure polydopamine or MnCo nanoparticles (NPs) synthesized under a similar method and, therefore, show great potential for photothermal therapy (PTT) in vivo. The MCP NPs are expected to possess T 1 positive magnetic resonance imaging ability due to the high‐spin Mn‐N6 (S = 5/2) in the skeleton of MnCo. To improve the therapy efficiency as a PTT agent, the MCP NPs are further modified with functional polyethylene glycol (PEG) and thiol terminal cyclic arginine–glycine–aspartic acid peptide, respectively: the first one is to increase the stability, biocompatibility, and blood circulation time of MCP NPs in vivo; the second one is to increase the tumor accumulation of MCP‐PEG NPs and improve their therapeutic efficiency as photothermal agent.
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