NDLI: A Multi-channel Sinusoidal Generator for Electrokinetic Stimulation of Microfluidic Platforms

Content Provider	IEEE Xplore Digital Library
Author	Gomez-Quinones, J. Perez-Gonzalez, V.H. Moncada-Hernandez, H. Rossetto, O. Dieck-Assad, G. Martinez-Chapa, S.O.
Copyright Year	2011
Abstract	This paper presents a multi-channel sinusoidal generator based in triangle-to-sine (TSC) converters. The proposed signal generator is used as stimulator of electro kinetic micro fluidic platforms for particle manipulation. The device is capable to deliver sixteen independent sinusoidal signals with control of amplitude and frequency. The multi-generator presents a frequency range of 8kHz to 21MHz with an output range of 0V to 3.1VPP. The output voltage can be extended to give outputs with amplitudes up to 20VPP using an interface card. The proposed multi-oscillator is based in an application specific circuit, was fabricated in a 0.35um CMOS technology and has a footprint area of 1560umX2030um. The multi-channel sinusoidal generator was tested using an experimental set-up where the separation of live and dead cells was performed. The experimental set-up consisted of a micro fluidic platform with a Carbon DEP micro-channel with 3-dimensional carbon electrodes. Simulations were carried out to reproduce the effects of electro kinetic forces over cells. By choosing specific frequencies, live and dead cells were trapped to one side (port), while only dead cells were attracted to the other port of the micro-channel. This stimulation device can be used in many other electro kinetic tasks to perform characterization, trapping and separation of particles.
Starting Page	20
Ending Page	25
File Size	2016968
Page Count	6
File Format	PDF
ISBN	9781457718793
DOI	10.1109/CERMA.2011.11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-15
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes AC Signal Generators Force cMEMS Electrokinetics CMOS integrated circuits Arrays Carbon Oscillators Microfluidics
Content Type	Text
Resource Type	Article

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