Aptamer-Based Enantioselective Competitive Binding Assay for the Trace Enantiomer Detection
作者:Josephine Ruta、Corinne Ravelet、Isabelle Baussanne、Jean-Luc Décout、Eric Peyrin
DOI:10.1021/ac070469d
日期:2007.6.1
that an aptamer can be successfully used to design a highly enantioselective tool for the trace enantiomer detection. The aptamer-based stereoselective assay was developed using an affinity capillary electrophoresis-based competitive, homogeneous format and an on-capillary mixing approach. Detection of as low as 0.01% of the minor enantiomer in a nonracemic mixture can be achieved, in a short analysis
高对映选择性测定和传感器的开发已引起人们对低水平对映体杂质测定的关注。对于手性化合物,对选择过程的有效监控使得能够分离核酸适体,所述核酸适体能够强烈地区分目标对映体。在本文中,我们首次证明了适体可以成功地用于设计痕量对映体检测的高对映选择性工具。基于适体的立体选择性测定法是使用基于亲和毛细管电泳的竞争性,均相形式和毛细管上混合方法开发的。在短时间内(<5分钟)即可检测到非外消旋混合物中次要对映体的含量低至0.01%。