Universiti Teknologi Malaysia Institutional Repository

Ultra sensitive CMOS biosensor array for label free DNA detection: Circuit design consideration

Yusof, Yusmeeraz and Kazuo, Nakazato (2015) Ultra sensitive CMOS biosensor array for label free DNA detection: Circuit design consideration. In: 3rd IEEE Conference on Biomedical Engineering and Sciences, IECBES 2014, 8 December 2014 - 10 December 2014, Kuala Lumpur, Malaysia.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1109/IECBES.2014.7047522

Abstract

Electrical biosensors are one strategy being explored for the development of a rapid point-of-care and onsite DNA testing tools since this technology is amenable to miniaturization, can be accurate and highly sensitive with simple instrumentation, and relatively inexpensive. A label free and fully integrated semiconductor sensor array based on differential charge-based capacitance measurement for DNA sensing is presented. The 4 × 4 sensor array circuit has been designed using a 2-poly 2-metal 1.2 μm CMOS process from ON Semiconductor. Each sensor features an integrated microelectrode of 16 μm2. The linear sensitivity is 3 mV/fF for the target input capacitance range of 1 to 103 fF. An array-clock controller scheme to selectively activate the array cell and capacitance-to-voltage conversion circuit has been proposed, enabling low power biosensor arrays.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:electrical biosensors, input capacitance, integrated microelectrodes, linear sensitivity
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:59534
Deposited By: Haliza Zainal
Deposited On:18 Jan 2017 01:50
Last Modified:16 Dec 2021 01:52

Repository Staff Only: item control page