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Photopatternable Carbon Electrodes for Chip‐Based Electrochemical Detection
Author(s) -
Gonzalez Carlos F.,
Cropek Donald M.,
Henry Charles S.
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200904643
Subject(s) - differential pulse voltammetry , electrode , photoresist , analyte , materials science , cyclic voltammetry , electrochemistry , voltammetry , analytical chemistry (journal) , graphite , chemically modified electrode , nanotechnology , working electrode , chemistry , chromatography , layer (electronics) , composite material
Presented is the preparation and initial characterization of carbonaceous electrodes prepared using photolithographic techniques. The electrodes were created using a graphite doped photoresist mixture which allowed for direct electrode patterning. The electrodes were tested using cyclic voltammetry with a Fe(CN) $\rm{ {_{6}^{3-/4-}}}$ test solution and were found to exhibit a linear response as per the Randles–Sevick relation. The feasibility of using these electrodes to conduct biological assays was demonstrated with p ‐aminophenol, a common analyte in electrochemical ELISAs, using differential pulse voltammetry.