Cleavable Binary Dyads: Simplifying Data Extraction and Increasing Storage Density in Digital Polymers
作者:Gianni Cavallo、Salomé Poyer、Jean‐Arthur Amalian、Florent Dufour、Alexandre Burel、Christine Carapito、Laurence Charles、Jean‐François Lutz
DOI:10.1002/anie.201803027
日期:2018.5.22
phosphodiester)s, containing binary dyads in each repeat unit, were prepared by an orthogonal solid‐phase approach involving successive phosphoramidite and radical‐radical coupling steps. Three different sets of monomers were considered to build these polymers. In all cases, four coded building blocks—two hydroxy‐nitroxides and two phosphoramidite monomers—were required to build the dyads. Among the three studied
数字聚合物是存储基于单体的二元序列的统一大分子。通常通过串联质谱(MS / MS)测量从聚合物中提取分子存储的信息,其中编码链被片段化以显示序列的每个位(即基本编码单体单元)。在这里,我们表明,通过支持包含两位而不是一位的MS / MS片段的形成,可以大大简化数据提取。为了做到这一点,通过正交固相方法制备了包含每个重复单元中二元二元化合物的数字聚(烷氧基胺磷酸二酯),该方法涉及连续的亚磷酰胺和自由基-自由基偶联步骤。考虑了三组不同的单体来构建这些聚合物。在所有情况下,需要四个编码的构建基块(两个羟基-硝基氧化物和两个亚磷酰胺单体)来构建二元组。在三种研究的单体组中,一种组合允许合成均一的序列编码聚合物。生成的聚合物导致MS / MS中出现清晰的含二分体的片段,因此可以有效地进行解码。此外,创建了一种算法来检测特定的二元组片段,从而实现自动测序。