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Record Details

Record 32 of 311
Integrated Microfluidic Gas Sensors for Water Monitoring
Offline Availability: Go to Request Form
Author and Affiliation:
Zhu, L.(Maryland Univ., Dept. of Mechanical Engineering, College Park, MD, United States)
Sniadecki, N.(Maryland Univ., Dept. of Mechanical Engineering, College Park, MD, United States)
DeVoe, D. L.(Maryland Univ., Dept. of Mechanical Engineering, College Park, MD, United States)
Beamesderfer, M.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Semancik, S.(National Inst. of Standards and Technology, Gaithersburg, MD, United States)
DeVoe, D. L.(Maryland Univ., Dept. of Mechanical Engineering, College Park, MD, United States)
Abstract: A silicon-based microhotplate tin oxide (SnO2) gas sensor integrated into a polymer-based microfluidic system for monitoring of contaminants in water systems is presented. This device is designed to sample a water source, control the sample vapor pressure within a microchannel using integrated resistive heaters, and direct the vapor past the integrated gas sensor for analysis. The sensor platform takes advantage of novel technology allowing direct integration of discrete silicon chips into a larger polymer microfluidic substrate, including seamless fluidic and electrical interconnects between the substrate and silicon chip.
Publication Date: Jan 01, 2003
Document ID:
20040031808
(Acquired Mar 16, 2004)
Subject Category: FLUID MECHANICS AND THERMODYNAMICS
Document Type: Preprint
Meeting Information: 7th International Conference of Miniaturized Chemical and Biochemical Analysis Systems, Transducers Research Foundation "MicroTAS 2003"; 5-9 Oct. 2003; Squaw Valley, CA; United States
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Organization Source: Maryland Univ.; Dept. of Mechanical Engineering; College Park, MD, United States
Description: 4p; In English; Original contains black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: MICROCHANNELS; GAS DETECTORS; TIN OXIDES; FLUIDICS; VAPOR PRESSURE; CONTAMINANTS; WATER
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