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Polymer matrices effects on the sensitivity and the selectivity of optical chemical sensors
University Roma Tor Vergata.
University Roma Tor Vergata.
Linköping University, Department of Physics, Chemistry and Biology, Applied Physics . Linköping University, The Institute of Technology.
University Roma Tor Vergata.
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2011 (English)In: SENSORS AND ACTUATORS B-CHEMICAL, ISSN 0925-4005, Vol. 154, no 2, 220-225 p.Article in journal (Refereed) Published
Abstract [en]

Polymers are commonly used in optical chemical sensors as inert supports for indicator dyes keeping the molecules apart to allow for exposure to analytes and to maintain the peculiar optical properties of the sensitive dyes. However, the partitioning properties of polymers may play a significant role in determining the sensitivity of the sensors. Herewith, the properties of a single dye blended with different polymers have been studied through optical absorbance changes elicited by the exposure to organic vapors. Results show that the partitioning properties of polymers modulate the response of the dye and confer a combinatorial selectivity to the system, allowing for the recognition of vapors.

Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam. , 2011. Vol. 154, no 2, 220-225 p.
Keyword [en]
Optical sensors, Polymers, Metalloporphyrins
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-69164DOI: 10.1016/j.snb.2010.04.002ISI: 000291195200024OAI: diva2:424348
Available from: 2011-06-17 Created: 2011-06-17 Last updated: 2011-06-17

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