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DTSTAMP:20180121T172955Z
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DTSTART;TZID=Canada/Eastern:20170620T160000
DTEND;TZID=Canada/Eastern:20170620T170000
DESCRIPTION:The development of widely applicable point-of-care sensing and 
 diagnostic devices can benefit from simple and inexpensive fabrication tec
 hniques that expedite the design\, testing\, and implementation of lab-on-
 a-chip devices. In particular\, electrodes integrated within microfluidic 
 devices enable the use of electrochemical techniques for the label-free de
 tection of relevant analytes. This work presents a novel\, simple\, and co
 st-effective bench-top approach for the integration of high surface area t
 hree-dimensional structured electrodes fabricated on polystyrene (PS) with
 in poly(dimethylsiloxane) (PDMS)-based microfluidics. The fabrication and 
 bonding processes are shown to have no effect on sensing electrode perform
 ance. Two configurations of three-electrode electrochemical cell are teste
 d\, and a salt bridge-free configuration is used for sensing. Finally\, th
 e on-chip sensing capabilities of the electrochemical cell are demonstrate
 d with a model redox compound\, where the high surface area structured ele
 ctrodes exhibit ultra-high sensitivity. We propose that the developed appr
 oach can significantly expedite and reduce the cost of fabrication of sens
 ing devices where arrays of functionalized electrodes can be used for poin
 t-of-care analysis and diagnostics.\n\nSpeaker(s): Jose Moran-Mirabal\, \n
 \nQuebec City\, Quebec\, Canada
LOCATION:Quebec City\, Quebec\, Canada
ORGANIZER:amine.miled@gmail.com
SEQUENCE:0
SUMMARY:[Legacy Report] Microfluidic devices with integrated structured ele
 ctrodes for on-chip sensing
URL;VALUE=URI:https://events.vtools.ieee.org/m/158758
X-ALT-DESC:Description: <br /><p>The development of widely applicable point
 -of-care sensing and diagnostic devices can benefit from simple and inexpe
 nsive fabrication techniques that expedite the design\, testing\, and impl
 ementation of lab-on-a-chip devices. In particular\, electrodes integrated
  within microfluidic devices enable the use of electrochemical techniques 
 for the label-free detection of relevant analytes. This work presents a no
 vel\, simple\, and cost-effective bench-top approach for the integration o
 f high surface area three-dimensional structured electrodes fabricated on 
 polystyrene (PS) within poly(dimethylsiloxane) (PDMS)-based microfluidics.
  The fabrication and bonding processes are shown to have no effect on sens
 ing electrode performance. Two configurations of three-electrode electroch
 emical cell are tested\, and a salt bridge-free configuration is used for 
 sensing. Finally\, the on-chip sensing capabilities of the electrochemical
  cell are demonstrated with a model redox compound\, where the high surfac
 e area structured electrodes exhibit ultra-high sensitivity. We propose th
 at the developed approach can significantly expedite and reduce the cost o
 f fabrication of sensing devices where arrays of functionalized electrodes
  can be used for point-of-care analysis and diagnostics.</p>
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