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首页> 外文期刊>Chemistry: A European journal >Photoresponsive DNA Nanocapsule Having an Open/Close System for Capture and Release of Nanomaterials
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Photoresponsive DNA Nanocapsule Having an Open/Close System for Capture and Release of Nanomaterials

机译：具有用于捕获和释放纳米材料的打开/关闭系统的光敏DNA纳米胶囊

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摘要

A photofunctionalized square bipyramidal DNA nanocapsule (NC) was designed and prepared for the creation of a nanomaterial carrier. Photocontrollable open/close system and toehold system were introduced into the NC for the inclusion and release of a gold nanoparticle (AuNP) by photoirradiation and strand displacement. The reversible open and closed states were examined by gel electrophoresis and atomic force microscopy (AFM), and the open behavior was directly observed by high-speed AFM. The encapsulation of the DNA-modified AuNP within the NC was carried out by hybridization of a specific DNA strand (capture strand), and the release of the AuNP was examined by addition of toehold-containing complementary DNA strand (release strand). The release of the AuNP from the NC was achieved by the opening of the NC and subsequent strand displacement.
机译：设计并制备了光官能化的方形双锥体DNA纳米胶囊（NC），用于创建纳米材料载体。将光可控的打开/关闭系统和趾部系统引入到NC中，以通过光辐照和链置换来引入和释放金纳米颗粒（AuNP）。通过凝胶电泳和原子力显微镜（AFM）检查可逆的打开和关闭状态，并通过高速AFM直接观察打开行为。通过特定DNA链（捕获链）的杂交，将DNA修饰的AuNP包裹在NC中，并通过添加含脚趾的互补DNA链（释放链）检查AuNP的释放。 AuNP从NC中的释放是通过NC的打开和随后的链置换而实现的。

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