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Characterization of polyethelene gly...

Wright, Young-Jin.

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Characterization of polyethelene glycol-coated microcantilever sensors response to ethanol vapor.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Characterization of polyethelene glycol-coated microcantilever sensors response to ethanol vapor./
Author:	Wright, Young-Jin.
Description:	76 p.
Notes:	Source: Masters Abstracts International, Volume: 42-01, page: 0243.
Contained By:	Masters Abstracts International42-01.
Subject:	Chemistry, Physical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1415170

Characterization of polyethelene glycol-coated microcantilever sensors response to ethanol vapor.
Wright, Young-Jin.

Characterization of polyethelene glycol-coated microcantilever sensors response to ethanol vapor. - 76 p.

Source: Masters Abstracts International, Volume: 42-01, page: 0243.

Thesis (M.S.)--The University of Alabama in Huntsville, 2003.

The research in this thesis centered on the study of the fundamental physical and chemical properties of polyethylene glycol (PEG)-coated, silicon microcantilevers. The properties of the PEG films were examined and correlated to how the film morphologies affect the properties of microcantilever behavior. Microcantilevers experience oscillations that are a result of the displacement of ambient thermal energy. In addition to the resonance frequency shifts of microcantilevers due to adsorbed species, microcantilevers also undergo bending due to differential surface stress. The primary observations resulting from this study were that (i) microcantilevers with the highest mass of deposited PEG experienced the greatest shift in resonance frequency; (ii) PEG films with larger surface areas had the best sensor signal, fast linear response and large deflection voltages when exposed to EtOH; (iii) the PEG coated films have excellent reversibility due to the relatively weak hydrogen bond interactions between PEG and EtOH; and (iv) the adsorption-desorption equilibrium conditions result in pronounced signals with very small amounts of adsorbed EtOH.Subjects--Topical Terms:

560527
Chemistry, Physical.

Characterization of polyethelene glycol-coated microcantilever sensors response to ethanol vapor.
LDR:02071nmm 2200277 4500 001 1858235
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035 $a (UnM)AAI1415170
035 $a AAI1415170
040 $a UnM $c UnM
100 1 $a Wright, Young-Jin. $3 1945931
245 1 0 $a Characterization of polyethelene glycol-coated microcantilever sensors response to ethanol vapor.
300 $a 76 p.
500 $a Source: Masters Abstracts International, Volume: 42-01, page: 0243.
500 $a Adviser: Michael M. George.
502 $a Thesis (M.S.)--The University of Alabama in Huntsville, 2003.
520 $a The research in this thesis centered on the study of the fundamental physical and chemical properties of polyethylene glycol (PEG)-coated, silicon microcantilevers. The properties of the PEG films were examined and correlated to how the film morphologies affect the properties of microcantilever behavior. Microcantilevers experience oscillations that are a result of the displacement of ambient thermal energy. In addition to the resonance frequency shifts of microcantilevers due to adsorbed species, microcantilevers also undergo bending due to differential surface stress. The primary observations resulting from this study were that (i) microcantilevers with the highest mass of deposited PEG experienced the greatest shift in resonance frequency; (ii) PEG films with larger surface areas had the best sensor signal, fast linear response and large deflection voltages when exposed to EtOH; (iii) the PEG coated films have excellent reversibility due to the relatively weak hydrogen bond interactions between PEG and EtOH; and (iv) the adsorption-desorption equilibrium conditions result in pronounced signals with very small amounts of adsorbed EtOH.
590 $a School code: 0278.
650 4 $a Chemistry, Physical. $3 560527
650 4 $a Chemistry, Polymer. $3 1018428
650 4 $a Chemistry, Analytical. $3 586156
690 $a 0494
690 $a 0495
690 $a 0486
710 2 0 $a The University of Alabama in Huntsville. $3 1017884
773 0 $t Masters Abstracts International $g 42-01.
790 1 0 $a George, Michael M., $e advisor
790 $a 0278
791 $a M.S.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1415170