Document Detail


An integrated CMOS high voltage supply for lab-on-a-chip systems.
MedLine Citation:
PMID:  18818808     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Electrophoresis is a mainstay of lab-on-a-chip (LOC) implementations of molecular biology procedures and is the basis of many medical diagnostics. High voltage (HV) power supplies are necessary in electrophoresis instruments and are a significant part of the overall system cost. This cost of instrumentation is a significant impediment to making LOC technologies more widely available. We believe one approach to overcoming this problem is to use microelectronic technology (complementary metal-oxide semiconductor, CMOS) to generate and control the HV. We present a CMOS-based chip (3 mm x 2.9 mm) that generates high voltages (hundreds of volts), switches HV outputs, and is powered by a 5 V input supply (total power of 28 mW) while being controlled using a standard computer serial interface. Microchip electrophoresis with laser induced fluorescence (LIF) detection is implemented using this HV CMOS chip. With the other advancements made in the LOC community (e.g. micro-fluidic and optical devices), these CMOS chips may ultimately enable 'true' LOC solutions where essentially all the microfluidics, photonics and electronics are on a single chip.
Authors:
M Behnam; G V Kaigala; M Khorasani; P Marshall; C J Backhouse; D G Elliott
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Publication Detail:
Type:  Journal Article     Date:  2008-07-21
Journal Detail:
Title:  Lab on a chip     Volume:  8     ISSN:  1473-0197     ISO Abbreviation:  Lab Chip     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-09-26     Completed Date:  2008-10-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101128948     Medline TA:  Lab Chip     Country:  England    
Other Details:
Languages:  eng     Pagination:  1524-9     Citation Subset:  -    
Affiliation:
Department of Electrical and Computer Engineering, University of Edmonton, AB, T6G 2V4, Canada.
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