MIPdatabase
Authors: Zhou YX, Yu B, Levon K
Article Title: Potentiometric sensor for dipicolinic acid.
Publication date: 2005
Journal: Biosensors and Bioelectronics
Volume: 20
Issue: (9)
Page numbers: 1851-1855.
DOI: 10.1016/j.bios.2004.05.005
Alternative URL: http://www.sciencedirect.com/science/article/B6TFC-4CN9P0M-2/2/3893468075abaf45c97e7a6524ffa882
Abstract: A potentiometric chemosensor for selective determination of dipicolinic acid (2,6-pyridinedicarboxylic acid, DPA) was developed based on the surface imprinting technique coupled with a nanoscale transducer: an indium tin oxide (ITO)-coated glass plate. The sensor fabrication conditions, optimal recognition condition, as well as selectivity, sensitivity, and stability of the DPA sensor have been investigated. The DPA sensor could recognize DPA from 3,5-pyridinedicarboxylic acid. Potentiometric measurements demonstrated selective detection of DPA in a concentration range of 1.5 x 10-6 to 0.0194 M. The response time of DPA sensor for 4 x 10-4 M DPA was 25 s. The potentiometric response of the DPA sensor to DPA is at 90% of its initial magnitude after 550 times measurement. The viability of such a modified ITO electrode in the presence of other inorganic, organic, and biological materials was probed
Template and target information: dipicolinic acid, 2,6-pyridinedicarboxylic acid, DPA
Author keywords: dipicolinic acid, SPORES, sensor, Potentiometry, Surface imprinted polymer
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