Synthesis of cationic diacetylene-co-carbazole-co-fluorene polymers and their sensitive fluorescent quenching properties with DNA
作者:Wennan Zeng、Shouping Liu、Hanxun Zou、Linyun Wang、Roger Beuerman、Derong Cao
DOI:10.1002/pola.24197
日期:——
underwent water‐induced aggregation. The spectral behaviors of CPFC and CPF2C with calf thymus DNA showed that a distinct fluorescent quenching took place with minute addition of CT DNA (3.3 × 10−13 M). The results showed that the polymers would be promising biosensor materials for sensitive detection of DNA. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 4168–4177, 2010
通过Hay偶联聚合制备了主链上的基于2,7-二乙炔基芴和3,6-二乙炔基咔唑单元的两种中性前体共轭共聚物(PFC和PF2C)。他们的阳离子共聚物(CPFC和CPF2C)是通过将其二乙基丙基氨基与CH 3 I甲基化而制备的。为了进行比较,我们将2,7-二乙炔基芴(PF),3,6-二乙炔基咔唑单元(PC)的中性共轭均聚物和它们的阳离子聚合物(CPF和CPC)也用相同的方法制备。阳离子聚合物CPFC和CFC的光学性能比较研究DMF和DMF / H 2 O中的CPF2C表明它们经历了水诱导的聚集。CPFC和CPF2C与小牛胸腺DNA的光谱行为表明,每分钟添加CT DNA(3.3×10 -13 M),就会发生明显的荧光猝灭。结果表明,该聚合物将成为用于灵敏地检测DNA的有前途的生物传感器材料。©2010 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem