Development of new dyes for use in integrated optical sensors |
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| Authors: | D. Citterio, Stefan Rá sonyi Ursula E. Spichiger |
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| Affiliation: | (1) Departement für Pharmazie, Eidgenössische Technische Hochschule (ETH), Zentrum für Chemische Sensoren/Biosensoren und bioAnalytische Chemie, Technopark Zürich, Technoparkstrasse 1, CH-8005 Zürich, Switzerland |
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| Abstract: | New chromoionophores have been developed, focused on NIR applications so that optode membranes may be used in monolithically integrated optical sensors. The wavelength of maximum absorbance has been estimated for a new model compound by the Pariser-Parr-Pople (PPP) method. Several cyanine type dyes have been tested as membrane chromoionophores. Membrane composition has been altered to overcome solubility problems. In this way, simple pH-sensitive optode membranes have been produced. |
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