Amplified Self‐Immolative Release of Small Molecules by Spatial Isolation of Reactive Groups on DNA‐Minimal Architectures
作者:Alexander L. Prinzen、Daniel Saliba、Christopher Hennecker、Tuan Trinh、Anthony Mittermaier、Hanadi F. Sleiman
DOI:10.1002/anie.202001123
日期:2020.7.27
to gain appreciable responses. Nucleic acids have been used for both their biomarker‐recognition properties and as stimuli, notably in amplified small‐molecule release by nucleic‐acid‐templated catalysis (NATC). The multiple components and reversibility of NATC, however, make it difficult to apply in vivo. Herein, we report the use of the hybridization chain reaction (HCR) for the amplified, conditional
响应于独特的生物标记物触发小分子的释放对于药物递送和生物检测中的应用很重要。由于生物标志物的量少,因此需要放大释放以获得明显的反应。核酸已被用于生物标记识别和刺激,特别是通过核酸模板催化(NATC)放大了小分子的释放。但是,NATC的多种成分和可逆性使其难以在体内应用。在这里,我们报告了使用杂交链反应(HCR)从独立的纳米设备中扩增,有条件释放小分子。我们将HCR与DNA模板反应结合在一起,从而导致小分子放大释放。我们将HCR组件整合到单个纳米器件中,成为DNA轨道和球形核酸,在空间上隔离反应性基团直至触发。这可以应用于生物传感,成像和药物输送。