Document Detail


Imaging based optofluidic air flow meter with polymer interferometers defined by soft lithography.
MedLine Citation:
PMID:  20721045     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We present an optofluidic chip with integrated polymer interferometers for measuring both the microfluidic air pressure and flow rate. The chip contains a microfluidic circuit and optical cavities on a polymer which was defined by soft lithography. The pressure can be read out by imaging the interference patterns of the cavities. The air flow rate was then calculated from the differential pressure across a microfluidic Venturi circuit. Air flow rate measurement in the range of 0-2mg/second was demonstrated. This device provides a simple and versatile way for in situ measuring the microscale air pressure and flow on chip.
Authors:
Wuzhou Song; Demetri Psaltis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  18     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-19     Completed Date:  2011-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  16561-6     Citation Subset:  IM    
Affiliation:
Optics Laboratory, School of Engineering, Swiss Federal Institute of Technology Lausanne EPFL, CH-1015 Lausanne, Switzerland. wuzhou.song@epfl.ch
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MeSH Terms
Descriptor/Qualifier:
Air
Flowmeters
Interferometry / methods*
Microfluidic Analytical Techniques / instrumentation*
Microfluidics / methods*
Polymers
Pressure
Printing / methods*
Chemical
Reg. No./Substance:
0/Polymers

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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