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Upconverting nanoparticle based optical sensor for carbon dioxide

Ali, Reham and Saleh, Sayed M. and Meier, Robert J. and Azab, Hassan A and Abdelgawad, Ibraheim I. and Wolfbeis, Otto S. (2010) Upconverting nanoparticle based optical sensor for carbon dioxide. Sensors and Actuators B: Chemical 150 (1), pp. 126-131.

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We demonstrate a novel optical sensor for carbon dioxide in concentrations between 0 and 3%. The sensing scheme is based on the optical interrogation of a 12-μm polystyrene (PS) film containing upconverting nanoparticles (UCNPs; 40–100 nm in size) of the type NaYF4:Yb,Er, and the longwave absorption pH probe bromothymol blue (BTB) in its anionic (blue) form. PS is chosen as a matrix because it ...


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Item type:Article
Date:21 September 2010
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis)
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Keywords:Optical sensor; Carbon dioxide; Nanoparticle; Upconversion; Luminescence
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Created at the University of Regensburg:Unknown
Deposited on:18 Mar 2011 06:44
Last modified:13 Mar 2014 16:59
Item ID:19957
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