Effect of electrode geometric parameters on droplet translocation in digital micro-fluidic biosensor

Yogarajan, M.P. and Ibrahim, F. and Soin, N. (2008) Effect of electrode geometric parameters on droplet translocation in digital micro-fluidic biosensor. In: 4th Kuala Lumpur International Conference on Biomedical Engineering 2008, Biomed 2008, 2008, Kuala Lumpur.

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This paper reports a study of an electrowettingon-dielectric (EWOD) biochip capable of droplet translocation. The study composed of an analytical analysis, observed the switching rate of droplet in variation the electrode width, electrode pitch, electrode thickness. It has been shown that at a fixed voltage and other design geometries, the switching rate of a water droplet is proportional to the electrode thickness and size and inversely proportional to electrode pitch. This results can be used to characterize the droplet translocation for a reprogrammable biochip. © 2008 Springer-Verlag.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Conference code: 82241 Export Date: 29 January 2014 Source: Scopus doi: 10.1007/978-3-540-69139-6-177 Language of Original Document: English Correspondence Address: Yogarajan, M. P.; Department of BioMedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia; email: vandayars@yahoo.com References: Chih, S.Y., A Droplet-based Device for Triglycerides Colorimetric Measurement (2005) Tamkang J of Science and Engineering, 8 (3), pp. 211-216; Srinivasan, V., Pamula, V.K., Pollack, M.G., Fair, R.B., A digital microfluidic biosensor for multianalyte detection (2003) Proceedings of the IEEE 16th Annual International Conference on Micro Electro Mechanical Systems, p. 327330; Ahn, C., Kim, S., Chao, H., Murugesan, M., Beaucage, G., Surface Modification of Cyclic Olefinic Copolymers for Bio-Mems Microfluidic Devices (2002) Materials Research Society Symposium-Proceedings, 729, pp. 131-136; Shastry, A., Case, M.J., Bohringer, K.F., Engineering surface roughness to manipulate droplets in microfluidic systems (2005) Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS), pp. 694-697. , WP9, Proceedings of the 18th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2005 Miami - Technical Digest; Ou, J., Perot, B., Rothstein, J.P., Laminar drag reduction in microchannels using ultrahydrophobic surfaces (1997) Phys. Fluids, 16 (12), pp. 4635-4643; Werder, T., Walther, J.H., Koumoutsakos, P., Hydrodynamics of Carbon Nanotubes - Contact Angle and Hydrophobic Hydration (2002) Inst. of Computational Sciences, Nanotech 2002, 2, pp. 490-493; Kim, N.-Y., The Movement of Micro Droplet with the Effects of Dielectric Layer and Hydrophobic Surface Treatment with R.F. Atmospheric Plasma in EWOD Structure (2006) J. Phys.: Conf. Ser., 34, pp. 650-655; Ren, H., Fair, R.B., Pollack, M.G., Shaughnessy, E.J., Dynamics of Electro-wetting Droplet Transport (2002) Sensors and Actuators B: Chemical, 87 (1), p. 15. , 201-206; Torkelli, A., (2003) Electrowetting Droplet Microfluidics on a Single Planar Surface, , PhD Dissertation, Helsinki University of Technology; Pollack, M.G., Shenderov, A.D., Fair, R.B., Electrowetting-based Actuation of Droplets for Integrated Microfluidics (2002) Lab on a Chip, 2, pp. 96-101; Washizu, M., Electrostatic actuation of liquid droplets for microreactor applications (1998) IEEE Trans. Ind. Appl., 34, pp. 732-737; Cho, S.K., Moon, H., Kim, C.J., Towards digital microfluidic circuits: Creating, transporting, cutting, and merging liquid droplets by electrowetting based actuation (2002) Technical Digest-15th IEEE International Conference on MEMS, pp. 32-35; Chao, Y.C., Electrowetting-Based Microfluidic Devices: Design Issues (2003) Summer Bioengineering Conference, June 25-29, , Sonesta Beach Resort, Key Biscayne, Florida; Chatterjee, D., Hetayothin, B., Droplet-based microfluidics with nonaqueous solvents and solutions (2006) Lab Chip, 6, pp. 199-206; Zeng, J., Korsmeyer, F.T., Principles of droplet electrohydro-dynamics for lab-on-a-chip (2004) Lab on a Chip, 4, pp. 265-277
Uncontrolled Keywords: Biochip, Droplet actuation, Electrowetting, Ewod, LOC, Analytical analysis, Design geometry, Electro wetting, Electrode pitches, Electrode thickness, Electrowetting on dielectrics, Fixed voltage, Geometric parameter, Reprogrammable, Switching rates, Water droplets, Biomedical engineering, Biosensors, Wetting, Drop formation
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 12 Feb 2014 01:20
Last Modified: 01 Nov 2017 04:02
URI: http://eprints.um.edu.my/id/eprint/9285

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