Label-free catalytic and molecular beacon containing an abasic site for sensitive fluorescent detection of small inorganic and organic molecules.

Label-free catalytic and molecular beacon containing an abasic site for sensitive fluorescent detection of small inorganic and organic molecules.
复制标题

DOI:
10.1021/ac203488p
复制
发表时间:
2012-03-20
影响因子:
7.4
通讯作者:
Lu, Yi
Lu, Yi
中科院分区:
化学1区
文献类型:
--
作者:
Song, Panshu;Xiang, Yu;Xing, Hang;Zhou, Zhaojuan;Tong, Aijun;Lu, Yi

文献摘要

参考文献

被引文献

相似文献

在这项工作中,两种方法具有互补的功能,催化和分子信标(CAMB)和无标记的荧光传感器,使用无碱基位点,已被结合成新的无标记CAMB传感器,具有各自的方法的优点。使用含dSpacer的分子信标的无标记方法使CAMB更具成本效益且对催化活性的干扰更少,而CAMB允许无标记方法使用真实的催化转换进行信号放大,从而产生新的无标记CAMB传感器用于Pb2+离子,检测限为3.8 nM,同时保持相同的选择性。此外,利用CAMB克服了无标记方法需要过量酶链的局限性,设计了一种新的无标记CAMB传感器,该传感器使用aptazyme,可检测低至1.4 μM的腺苷,对其他核苷具有良好的选择性。
In this work, two methods with complementary features, catalytic and molecular beacon (CAMB) and label-free fluorescent sensors using abasic site, have been combined into new label-free CAMB sensors that possess advantages of each method. The label-free method using dSpacer-containing molecular beacon makes CAMB more cost-effective and less interfering to the catalytic activity, while the CAMB allows the label-free method to use true catalytic turnovers for signal amplifications, resulting in a new label-free CAMB sensor for Pb2+ ion, with a detection limit of 3.8 nM while maintaining the same selectivity. Furthermore, by using CAMB to overcome the label-free method’s limitation of the requiring excess enzyme strand, a new label-free CAMB sensor using aptazyme is also designed to detect adenosine down to 1.4 μM, with excellent selectivity over other nucleosides.
DOI: 10.1021/ac049565u
发表时间: 2004-09-01
影响因子: 7.4
作者:
Jiang, YX;Fang, XH;Bai, CL
通讯作者: Bai, CL
DOI: 10.1016/1074-5521(95)90028-4
发表时间: 1995-10-01
影响因子: --
作者:
BREAKER, RR;JOYCE, GF
通讯作者: JOYCE, GF
DOI: 10.1021/ja711192e
发表时间: 2008-03-12
影响因子: 15
作者:
Kolpashchikov, Dmitry M.
通讯作者: Kolpashchikov, Dmitry M.
DOI: 10.1002/anie.200700269
发表时间: 2007-01-01
影响因子: 16.6
作者:
Lee, Jae-Seung;Han, Min Su;Mirkin, Chad A.
通讯作者: Mirkin, Chad A.
DOI: 10.1021/ja803507d
发表时间: 2008-10-01
影响因子: 15
作者:
Deng, Minggang;Zhang, Dan;Zhou, Xiang
通讯作者: Zhou, Xiang