Development of a microfabricated electrochemical-cantilever hybrid platform
Author
Summary, in English
The design and fabrication of a combined electrochemical-cantilever microfluidic system is described. A chip integrating cantilevers with electrodes into a microchannel is presented with the accompanying polymer flow cell. Issues such as electrical and fluid connections are addressed, electromechanical behavior in ionic solution is investigated, and two uses of the system are demonstrated. First, all cantilevers are functionalized with cysteine, to facilitate detection of Cu2+ ions, then one cantilever is electrochemically cleaned in situ to generate a reference cantilever for differential measurements. Two concentrations of Cu2+ ions are successfully measured in this way. Clean cantilevers are used to probe a solution with and without [Fe(CN)6]3−/4− redox couple present, demonstrating the combined voltammetric and deflection readout.
Publishing year
2011
Language
English
Pages
321-327
Publication/Series
Sensors and Actuators B: Chemical
Volume
157
Issue
1
Document type
Journal article
Publisher
Elsevier
Topic
- Medical Engineering
Status
Published
ISBN/ISSN/Other
- ISSN: 0925-4005