Ion‐Tagged Oligonucleotides Coupled with a Magnetic Liquid Support for the Sequence‐Specific Capture of DNA
作者:Kevin D. Clark、Marcelino Varona、Jared L. Anderson
DOI:10.1002/anie.201703299
日期:2017.6.19
isolation of specific nucleic acid sequences is a major bottleneck in molecular diagnostics. Magnetic beads/particles are typically used as solid supports for the capture of DNA targets to improve sample throughput but aggregate over time resulting in lower capture efficiency and obstruction of liquid handling devices. Herein, we describe a particle-free approach to sequence-specific DNA extraction using
特定核酸序列的分离是分子诊断中的主要瓶颈。磁珠/颗粒通常用作固相支持物,用于捕获DNA靶标,以提高样品通量,但随着时间的推移会聚集,导致捕获效率降低和液体处理设备受阻。在这里,我们描述了一种使用磁性液体支持物和离子标记寡核苷酸(ITO)探针的无颗粒方法进行序列特异性DNA提取。以底物和寡核苷酸的自由基硫醇-烯偶联所获得的最高收率合成了ITO共轭物。除了区分核苷酸错配以外,基于ITO和基于磁性液体的方法比从基于商业磁珠的方法更能从一组干扰基因组DNA中捕获目标DNA。