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1 – 1 of 1Sharipah Nadzirah and Uda Hashim
The purpose of this study is to fabricate a transducer-based TiO2 interdigitated microelectrodes with various gap sizes. The most stable electrical properties have been selected…
Abstract
Purpose
The purpose of this study is to fabricate a transducer-based TiO2 interdigitated microelectrodes with various gap sizes. The most stable electrical properties have been selected for Escherichia. coli O157:H7 DNA detection.
Design/methodology/approach
Sol-gel was used to synthesize TiO2 nanoparticles. Lift-off photolithography process was used for fabrication of interdigitated electrodes (IDEs) and dry-state DNA detection was done using a Picoammeter.
Findings
TiO2 nanoparticles IDEs with 16-um gap size is able to detect DNA of E. coli in a dry state.
Originality/value
This paper describes IDEs for dry-state detection of E. coli O157:H7 DNA. The technique presented in this paper ensures the high uniformity of nanoparticle deposition on the finger electrode.
Details