Abstract
Wireless potentiostats are being developed and commercialized for use in the development of implantable electrochemical biosensors for the monitoring of physiological markers in a wide range of pathologies.The merits and drawbacks of the Pinnacle 8151 dual potentiostat were investigated for use with a novel implantable biotransducer, the dual responsive microdisc electrode array (MDEA 5037) of ABTECH Scientific.The potentiostat was evaluated with R and RC dummy cells and with MDEA transducers modified with polypyrrole-poly(2-hydroxyethyl methacrylate) electroconductive hydrogels that were all qualified by calibrated ac impedance spectroscopy.In a laboratory setting, the 8151 potentiostat maintained a steady and unbroken signal as far away as 75 ft(23 m),and when unobstructed,up to 100 ft (30 m).The error between the two channels was determined to be 6.4(0.3) and 0.70.1% for resistor-capacitor dummy cells RC=nominally 10MOmega;and 1 mu;F and resistor dummy cells (R=nominally} 10 M) respectively.The intra-channel variability was judged to be too large for exacting analyte determinations.
Original language | English (US) |
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Article number | 6651733 |
Pages (from-to) | 768-776 |
Number of pages | 9 |
Journal | IEEE Sensors Journal |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1 2014 |
Keywords
- Biomedical telemetry
- biomedical transducers
- biosensors
- polypyrrole
- telemedicine
ASJC Scopus subject areas
- Instrumentation
- Electrical and Electronic Engineering