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Content Provider | IEEE Xplore Digital Library |
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Author | Puchberger-Enengl, D. Krutzler, C. Vellekoop, M.J. |
Copyright Year | 2011 |
Description | Author affiliation: Institute of Sensor and Actuator Systems, Vienna University of Technology, Gusshausstrasse 27-29/E366, 1040, Austria (Puchberger-Enengl, D.; Vellekoop, M.J.) || Austrian Center for Medical Innovation and Technology, Viktor-Kaplan- Strae 2, 2700 Wiener Neustadt, Austria (Krutzler, C.) |
Abstract | In this contribution we present a miniaturized optical reflectance pH sensor based on organically modified silicate for continuous measurements of wound pH. Colorimetric indicators (bromocresol green pH 3.8–5.4 and bromocresol purple pH 5.2–6.8) have been immobilized in tetraethoxysilane (TEOS) thin films. Characteristics of the thin films have been optimized by addition of (3-Glycidyloxypropyl)trimethoxysilane (GLYMO). The pH sensitive layer of the sensor is illuminated through the substrate by a chip-LED. The reflected light at a phototransistor varies in dependence of the color of the thin film. The films have been characterized by visible absorption spectroscopy and the performance of the sensor has been evaluated by measurements on artificial wounds. |
Starting Page | 679 |
Ending Page | 682 |
File Size | 847373 |
Page Count | 4 |
File Format | |
ISBN | 9781424492909 |
ISSN | 19300395 |
e-ISBN | 9781424492893 |
DOI | 10.1109/ICSENS.2011.6127220 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2011-10-28 |
Publisher Place | Ireland |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Wounds Absorption Liquids Organic inorganic hybrid materials Time factors Skin Diabetes |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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