![2,2'-{2,2-Propanediylbis[(2,6-dibromo-4,1-phenylene)oxy]}diethanol structure](https://static.chemtradehub.com/structs/416/4162-45-2-b3d6.webp "2,2'-{2,2-Propanediylbis[(2,6-dibromo-4,1-phenylene)oxy]}diethanol structure")
2,2'-{2,2-Propanediylbis[(2,6-dibromo-4,1-phenylene)oxy]}diethanol
CAS Number:
4162-45-2
Molecular Formula:
C19H20Br4O4
Construction of carbon nanotube based nanoarchitectures for selective impedimetric detection of cancer cells in whole blood
Literature Information
Publication Date
2014-07-21
DOI
10.1039/C4AN00758A
Impact Factor
4.616
Authors
Wangxia Dan, Yu Fu, Shaoqin Liu
View Original
Abstract
A carbon nanotube (CNT) based nanoarchitecture is developed for rapid, sensitive and specific detection of cancer cells by using real time electrical impedance sensing. The sensor is constructed with carbon nanotube (CNT) multilayers and EpCAM (epithelial cell adhesion molecule) antibodies, which are assembled on an indium tin oxide (ITO) electrode surface. The binding of tumor cells to EpCAM antibodies causes increase of the electron-transfer resistance. The electrochemical impedance of the prepared biosensors is linear with the logarithm of concentration of the liver cancer cell line (HepG2) within the concentration range of 10 to 105 cells per mL. The detection limit for HepG2 cells is 5 cells per mL. The proposed impedimetric sensing devices allow for sensitive and specific detection of cancer cells in whole-blood samples without any sample pretreatment steps.
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