Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5031309 | Biosensors and Bioelectronics | 2018 | 24 Pages |
Abstract
A molecularly imprinted electrochemical sensor for neuron specific enolase (NSE) was developed by electrochemical polymerizing ionic liquid, which was functionalized with pyrrole moiety, in between gold nanoarrays. A well-defined 3D structured gold nanoarray was fabricated on a glassy carbon electrode (GCE) surface by using template-assisted electrochemical deposition technique. 1-(3-mercaptopropyl)-3-vinyl-imidazolium tetrafluoroborate was self-assembled onto the surface of gold nanoarrays to produce active sites for anchoring the molecularly imprinted film. Subsequently, an electrochemical polymerization procedure was carried out in an aqueous solution containing 1,3-di(3-N-pyrrolpropyl)imidazolium bromine ionic liquid and neuron specific enolase (NSE). After removing NSE templates, a molecularly imprinted sensor was successfully fabricated. The sensor showed high selectivity and sensitivity towards NSE, produced a linear response in the concentration range from 0.01 to 1.0 ng mLâ1 and had a detection limit of 2.6 pg mLâ1 with an incubation time of 15 min. The developed sensor was demonstrated successful in determining NSE in clinical serum samples.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Xing Wang, Yanying Wang, Xiaoxue Ye, Tsunghsueh Wu, Hongping Deng, Peng Wu, Chunya Li,