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Mediated Electron Transfer at Redox Active Monolayers Part 2 : Analysis of the Chronoamperometric Response to a Potential Step Perturbation
Sensors 2002, 2(8), 331-338; doi:10.3390/s20800331

Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films

1, 1, 1,* , 2 and 2
1 Environmental Chemistry & Technology Program, University of Wisconsin-Madison, Madison, WI, USA 2 Department of Electrical Engineering & Materials Research Institute, 217 Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
* Author to whom correspondence should be addressed.
Received: 25 June 2002 / Accepted: 26 June 2002 / Published: 22 August 2002
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This paper reports on the use of nanoporous Pt-TiO2 thin films coated onto magnetoelastic sensors for the detection of ethylene, an important plant growth hormone. Five different metal oxide coatings, TiO2, TiO2+ZrO2, TiO2+TTCN(1,4,7-Trithiacyclononane)+Ag, SiO2+Fe, and TiO2+Pt, each having demonstrated photocatalytic activity in response to ethylene, were investigated for their ability to change mass or elasticity in response to changing ethylene concentration. Pt-TiO2 films were found to possess the highest sensitivities, and coupled with the magnetoelastic sensor platform capable of sensing ethylene levels of < 1 ppm.
Keywords: Ethylene; Sensor; Metal Oxide; Magnetoelastic; Nanoporous Ethylene; Sensor; Metal Oxide; Magnetoelastic; Nanoporous
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Zhang, R.; Tejedor, M.I.; Anderson, M.A.; Paulose, M.; Grimes, C.A. Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films. Sensors 2002, 2, 331-338.

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