Title :
Micro-Organism-on-Chip: Emerging Direct-Write CMOS-Based Platform for Biological Applications
Author :
Ghafar-Zadeh, Ebrahim ; Sawan, M. ; Chodavarapu, V.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada
Abstract :
We describe the emerging applications of direct-write CMOS-based lab-on-chip which consists of capacitive sensors integrated with microfluidic structures. The microfluidic components are implemented through direct-write microfabrication process (DWFP) on a variety of substrates including integrated circuits. We put forward the recent advances of DWFP for different applications while our focus is placed on biological testing through a novel on-chip capacitive measurement method. We thereafter reveal the viability of this approach for biosensing purposes by demonstrating and discussing the experimental results on micro-organisms. These results are in full agreement with the bio-interface model and other features presented throughout the paper.
Keywords :
CMOS integrated circuits; bioMEMS; biomedical electronics; biosensors; capacitive sensors; lab-on-a-chip; microfabrication; microfluidics; microorganisms; biointerface model; biological testing; biosensors; capacitive sensors; direct-write CMOS-based lab-on-chip; direct-write microfabrication process; integrated circuits; microfluidic structures; microorganism-on-chip; Biosensors; Capacitance; Capacitive sensors; Circuit testing; Contamination; Lab-on-a-chip; Microfluidics; Microorganisms; Monitoring; Pollution measurement; CMOS; Capacitive sensor; direct-write microfabrication process (DWFP); microfluidic packaging;
Journal_Title :
Biomedical Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TBCAS.2009.2023453