Electrical characterizations of electrodes microfluidics system for microbio object analysis

We have designed and fabricated electrodes microfluidics system for microbio object analysis. Two parallel plate electrodes were fabricated using soft lithography technique integrated with PDMS microfluidics channel. Gold (Au) material was decomposed to fabricate the electrodes. Voltage response thr...

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Main Authors: Rahman, Md. Habibur, Ahmad, Mohd. Ridzuan
Format: Conference or Workshop Item
Published: 2013
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Online Access:http://eprints.utm.my/id/eprint/37622/
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Institution: Universiti Teknologi Malaysia
id my.utm.37622
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spelling my.utm.376222017-09-26T06:55:28Z http://eprints.utm.my/id/eprint/37622/ Electrical characterizations of electrodes microfluidics system for microbio object analysis Rahman, Md. Habibur Ahmad, Mohd. Ridzuan TK Electrical engineering. Electronics Nuclear engineering We have designed and fabricated electrodes microfluidics system for microbio object analysis. Two parallel plate electrodes were fabricated using soft lithography technique integrated with PDMS microfluidics channel. Gold (Au) material was decomposed to fabricate the electrodes. Voltage response through charging and discharging of the electrodes were observed using oscilloscope. For a constant dc voltage of 5 V we have obtained the time constant of the electrodes as 3.6 ms. On the other hand, it requires 850 ms to discharge completely without an external load. We have measured the capacitance of the electrodes as 0.37 pF in air (room environment) medium, on the other hand in distilled water medium electrodes capacitance is 0.77 pF. This is because of the high dielectric constant of distilled water (80.1). We have also measured electrodes capacitance by changing the medium to microbio objects such as; yeast cells (5 pF) and live bacteria cells (30 pF). Results showed that, bacteria have a higher electrical capacitance rather than yeast. 2013 Conference or Workshop Item PeerReviewed Rahman, Md. Habibur and Ahmad, Mohd. Ridzuan (2013) Electrical characterizations of electrodes microfluidics system for microbio object analysis. In: 2013 IEEE International Conference on Control System, Computing and Engineering.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Rahman, Md. Habibur
Ahmad, Mohd. Ridzuan
Electrical characterizations of electrodes microfluidics system for microbio object analysis
description We have designed and fabricated electrodes microfluidics system for microbio object analysis. Two parallel plate electrodes were fabricated using soft lithography technique integrated with PDMS microfluidics channel. Gold (Au) material was decomposed to fabricate the electrodes. Voltage response through charging and discharging of the electrodes were observed using oscilloscope. For a constant dc voltage of 5 V we have obtained the time constant of the electrodes as 3.6 ms. On the other hand, it requires 850 ms to discharge completely without an external load. We have measured the capacitance of the electrodes as 0.37 pF in air (room environment) medium, on the other hand in distilled water medium electrodes capacitance is 0.77 pF. This is because of the high dielectric constant of distilled water (80.1). We have also measured electrodes capacitance by changing the medium to microbio objects such as; yeast cells (5 pF) and live bacteria cells (30 pF). Results showed that, bacteria have a higher electrical capacitance rather than yeast.
format Conference or Workshop Item
author Rahman, Md. Habibur
Ahmad, Mohd. Ridzuan
author_facet Rahman, Md. Habibur
Ahmad, Mohd. Ridzuan
author_sort Rahman, Md. Habibur
title Electrical characterizations of electrodes microfluidics system for microbio object analysis
title_short Electrical characterizations of electrodes microfluidics system for microbio object analysis
title_full Electrical characterizations of electrodes microfluidics system for microbio object analysis
title_fullStr Electrical characterizations of electrodes microfluidics system for microbio object analysis
title_full_unstemmed Electrical characterizations of electrodes microfluidics system for microbio object analysis
title_sort electrical characterizations of electrodes microfluidics system for microbio object analysis
publishDate 2013
url http://eprints.utm.my/id/eprint/37622/
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