Title of article
ChemiBlock transducers
Author/Authors
Mascaro، نويسنده , , D.J. and Baxter، نويسنده , , J.C. and Halvorsen، نويسنده , , A. and White، نويسنده , , K. and Scholz، نويسنده , , B. and Schulz، نويسنده , , D.L.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
9
From page
353
To page
361
Abstract
The first chemical gas transducers that employ NanoBlock® substrates are described. The sensing material, a carbon black/polymer composite, is deposited onto pre-patterned silicon wafers. Subsequent processing steps yield transducers with a small form factor (1.05 mm × 1.05 mm). These so termed “ChemiBlocks” exhibit response times t90 < 3 s and recovery times t10 < 15 s when exposed to the nerve gas simulant dimethyl methylphosphonate. Although only one composite composition is employed in this study, the extension to array-based differentiation of target analytes and interferents is anticipated to be straightforward given the maturity of C-black/polymer composite sensor technology. ChemiBlock transducers are well suited for application in radio-frequency microsensor systems that are currently under development.
Keywords
chemiresistor , Gas sensor , Fluidic self-assembly , NanoBlock , carbon black , Wireless microsensor system , Polymer Composite
Journal title
Sensors and Actuators B: Chemical
Serial Year
2007
Journal title
Sensors and Actuators B: Chemical
Record number
1435510
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