Morphological and Electrical Properties of Silicon Dioxide-Based Interdigitated Electrode Arrays

M.A. Farehanim; U. Hashim; Norhayati Soin; A.H. Azman; S. Norhafiezah; M.F. Fatin; Mat Ayub Ramzan

doi:10.4028/www.scientific.net/AMR.1109.253

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1109Morphological and Electrical Properties of Silicon...

Morphological and Electrical Properties of Silicon Dioxide-Based Interdigitated Electrode Arrays

Abstract:

The electrical performances of silicon dioxide-based Interdigitated electrodes (IDEs) as biosensor were developed. The IDEs was made up by two individually addressable Interdigitated comb-like finger structure have frequently been suggested as a biosensor which promises higher sensitivity compared to conventional parallel electrodes. The purpose of this paper was to investigate the capacitance test and impedance test to taken with various pH solution to observe the response of the sensor with different pH values. Purchased pH buffer solutions which varied from pH2 to pH10 are dropped on the microelectrode and the effect on it is investigated for the application in pH measurement. This research has proven that increase in pH value from acidic to alkaline is proportional with capacitance. The measured values of capacitance with respect to each pH concentrations applied during the measurements were repeatable and reproducible.

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Periodical:

Advanced Materials Research (Volume 1109)

Pages:

253-256

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1109.253

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Online since:

June 2015

Authors:

M.A. Farehanim*, U. Hashim, Norhayati Soin, A.H. Azman, S. Norhafiezah, M.F. Fatin, Mat Ayub Ramzan

Keywords:

Biosensor, Gap Size, Interdigitated Electrodes, Silicon Dioxide

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