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Evaluation of Poly( o ‐phenylenediamine) Films for Application as Insulating Layers upon Carbon Substrates for Use within Sonochemically Fabricated Microelectrode Arrays
Author(s) -
Gornall Davinia D.,
Collyer Stuart D.,
Higson Séamus P. J.
Publication year - 2010
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.200900392
Subject(s) - microelectrode , amperometry , materials science , electrode , cyclic voltammetry , electrochemistry , multielectrode array , carbon fibers , optoelectronics , analytical chemistry (journal) , composite material , chemistry , organic chemistry , composite number
The formation of insulating layers of poly( o ‐phenylenediamine) via electropolymerization was performed on single carbon screen‐printed electrodes. The effects of experimental parameters on the properties of the film were investigated, allowing for technique optimization. These conditions were then used to deposit films upon surfaces of 100 interconnected electrodes, with cyclic voltammetry used to study the electroactivity of the resulting electrodes. The insulating property of the film, for use in the formation of microelectrode array amperometric sensors, was evaluated. Finally, the insulated sensors were exposed to ultrasonic ablation to form microelectrode arrays, and these were subsequently assessed using optical and electrochemical techniques.