Versatile Polymer Nanocapsules via Redox Competition.

Versatile Polymer Nanocapsules via Redox Competition.
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DOI:
10.1002/anie.202110829
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发表时间:
2021-12-06
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Jokerst JV
Jokerst JV
中科院分区:
其他
文献类型:
--
作者:
Zhou J;Xu M;Jin Z;Borum RM;Avakyan N;Cheng Y;Yim W;He T;Zhou J;Wu Z;Mantri Y;Jokerst JV

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聚合物纳米胶囊在材料科学和生物医学技术中具有重要的应用价值,但其合成步骤复杂且耗时。我们在这里报告的简易合成单分散聚合物纳米胶囊通过氧化还原介导的动力学策略从两个简单的分子:多巴胺和苯-1,4-二硫醇(BDT)。具体而言,BDT形成核心模板并调节多巴胺氧化成聚多巴胺(PDA)壳的动力学。这些均匀的纳米颗粒可以在~70和200 nm之间调节,因为核直径直接取决于BDT,而壳厚度取决于多巴胺。然后,超分子核可以在有机溶剂中快速分解以产生PDA纳米胶囊。这种纳米胶囊表现出增强的物理化学性能(例如,负载能力、光热转换和抗氧化性)与它们的固体对应物相比。特别是,这种方法能够直接封装功能性纳米颗粒,为设计复杂的纳米结构如蛋黄壳纳米颗粒提供了机会。通过氧化还原介导的动力学策略从两个简单分子合成单分散和可调的聚合物纳米胶囊,多巴胺和苯-1,4-二硫醇。这种流线型的方法不仅提供了功能性纳米胶囊,而且还使蛋黄壳纳米结构的功能性核的容易的适应性,加快了多功能纳米系统的开发。
Polymer nanocapsules have demonstrated significant value in materials science and biomedical technology, but require complicated and time-consuming synthetic steps. We report here the facile synthesis of monodisperse polymer nanocapsules via a redox-mediated kinetic strategy from two simple molecules: dopamine and benzene-1,4-dithiol (BDT). Specifically, BDT forms core templates and modulates the oxidation kinetics of dopamine into polydopamine (PDA) shells. These uniform nanoparticles can be tuned between ~70 and 200 nm because the core diameter directly depends on BDT while the shell thickness depends on dopamine. The supramolecular core can then rapidly disassemble in organic solvents to produce PDA nanocapsules. Such nanocapsules exhibit enhanced physicochemical performance (e.g., loading capacity, photothermal transduction, and anti-oxidation) versus their solid counterparts. Particularly, this method enables a straightforward encapsulation of functional nanoparticles providing opportunities for designing complex nanostructures such as yolk–shell nanoparticles. Monodisperse and tunable polymer nanocapsules are synthesized via a redox-mediated kinetic strategy from two simple molecules, i.e., dopamine and benzene-1,4-dithiol. This streamlined method not only provides functional nanocapsules, but also enables the facile accommodation of functional cores for yolk–shell nanostructures, expediting the development of multifunctional nanosystems.
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影响因子: --
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