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Mitochondria-Targeted Polydopamine Nanocomposite with AIE Photosensitizer for Image-Guided Photodynamic and Photothermal Tumor Ablation.
Small ( IF 13.0 ) Pub Date : 2019-06-11 , DOI: 10.1002/smll.201902352
Yuzhi Chen 1 , Wenting Ai 1 , Xuan Guo 2 , Yawen Li 1 , Yufan Ma 1 , Lifang Chen 2 , Hui Zhang 2 , Tongxin Wang 3 , Xin Zhang 2 , Zhuo Wang 1
Affiliation  

Photodynamic therapy (PDT) and photothermal therapy (PTT) are two kinds of treatment for tumors. Herein, a new aggregation‐induced emission (AIE)gen (MeO‐TPE‐indo, MTi) is synthesized with a D–π–A conjugated structure. MTi, which has an electron donor and an acceptor on a tetraphenylethene (TPE) conjugated skeleton, can induce the effective generation of reactive oxygen species (ROS) for PDT. With the guide of the indolium group, MTi can target and image mitochondrion selectively. In order to get good dispersion in water and long‐time retention in tumors, MTi is modified on the surface of polydopamine nanoparticles (PDA NPs) to form the nanocomposite (PDA‐MeO‐TPE‐indo, PMTi) by π–π and hydrogen interactions. PMTi is a nanoscale composite for imaging‐guided PDT and PTT in tumor treatment, which is constructed with AIEgens and PDA for the first time. The organic functional molecules are combined with nanomaterials for building a multifunctional diagnosis and treatment platform by utilizing the advantages of both sides.

中文翻译:

线粒体靶向的聚多巴胺纳米复合材料与AIE光敏剂的图像引导光动力和光热肿瘤消融。

光动力疗法(PDT)和光热疗法(PTT)是两种治疗肿瘤的方法。在这里,合成了一种新的聚集诱导发射(AIE)源(MeO-TPE-indo,MTi),具有D-π-A共轭结构。在四苯乙烯(TPE)共轭骨架上具有电子给体和受体的MTi可以诱导PDT活性氧(ROS)的有效生成。在吲哚类的指导下,MTi可以选择性地靶向和成像线粒体。为了在水中获得良好的分散性并在肿瘤中长期保留,MTi在聚多巴胺纳米颗粒(PDA NPs)的表面上被修饰,通过π–π和氢形成纳米复合物(PDA‐MeO‐TPE‐indo,PMTi)。互动。永磁体是用于肿瘤治疗中成像引导的PDT和PTT的纳米级复合材料,它是首次使用AIEgens和PDA构建的复合材料。通过将有机功能分子与纳米材料结合,利用双方的优势,构建多功能的诊断和治疗平台。
更新日期:2019-06-11
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