已经研究了一种用 DNA 对金纳米粒子进行功能化的新方法。已经制备了用马来酰亚胺功能化的二氧化硅涂层纳米粒子。这些颗粒旨在与分子一端含有二烯官能团的修饰 DNA 反应。结果将是通过 Diels-Alder 反应形成更稳定的 DNA 附着到颗粒上。这种共价连接不会受到配体交换的影响,而已知这种情况发生在金纳米颗粒的常规 DNA 功能化中。
已经研究了一种用 DNA 对金纳米粒子进行功能化的新方法。已经制备了用马来酰亚胺功能化的二氧化硅涂层纳米粒子。这些颗粒旨在与分子一端含有二烯官能团的修饰 DNA 反应。结果将是通过 Diels-Alder 反应形成更稳定的 DNA 附着到颗粒上。这种共价连接不会受到配体交换的影响,而已知这种情况发生在金纳米颗粒的常规 DNA 功能化中。
Thermoreversible Reactions on Inorganic Nanoparticle Surfaces: Diels–Alder Reactions on Sterically Crowded Surfaces
作者:Tom Engel、Guido Kickelbick
DOI:10.1021/cm303049k
日期:2013.1.22
reactions were based on simple radical additions. However, novel smart materials require reversible reactions. These reactions, such as the Diels–Alder reaction, often have a specific sterical demand, e.g., a six-centered transition state. In this study, < 5 nm silica particles were functionalized with maleimide groups, and their reactivity with regard to Diels–Alder reactions were investigated, applying