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Development of a microfabricated electrochemical-cantilever hybrid platform

Fischer, Lee MacKenzie; Pedersen, Christoffer; Elkjær, Karl; Noeth, Nadine-Nicole; Dohn, Søren; Boisen, Anja and Tenje, Maria LU (2011) In Sensors and Actuators B: Chemical 157(1). p.321-327
Abstract
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... (More)
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. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Sensors and Actuators B: Chemical
volume
157
issue
1
pages
321 - 327
publisher
Elsevier
external identifiers
  • scopus:79959650008
ISSN
0925-4005
DOI
10.1016/j.snb.2011.04.040
language
English
LU publication?
no
id
910ace80-b006-4700-badf-cb32ec189191 (old id 3129692)
date added to LUP
2012-10-15 14:05:00
date last changed
2017-10-01 04:04:23
@article{910ace80-b006-4700-badf-cb32ec189191,
  abstract     = {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.},
  author       = {Fischer, Lee MacKenzie and Pedersen, Christoffer and Elkjær, Karl and Noeth, Nadine-Nicole and Dohn, Søren and Boisen, Anja and Tenje, Maria},
  issn         = {0925-4005},
  language     = {eng},
  number       = {1},
  pages        = {321--327},
  publisher    = {Elsevier},
  series       = {Sensors and Actuators B: Chemical},
  title        = {Development of a microfabricated electrochemical-cantilever hybrid platform},
  url          = {http://dx.doi.org/10.1016/j.snb.2011.04.040},
  volume       = {157},
  year         = {2011},
}