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Proceedings Paper

Fluorescence intensity measurements with display screen as excitation source
Author(s): Sanghan Park; Satya Gowthami Achanta; Chang-Soo Kim
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Paper Abstract

Several new techniques are emerging to use digital display devices as new type of light source for analytical purpose. We demonstrate the use of a liquid crystal display (LCD) computer screen as excitation light source for determining gaseous oxygen contents over a relatively large area. Meso-scale device platforms are prepared with glass plates incorporating fluidic channels and commercial oxygen sensor patches. Fluorophores are excited by blue wavelength range from the LCD computer screen. The sensor signals exhibit a good linear relationship with respect to the oxygen content. The display devices, with a capability of uniform illumination over a large area for variable wavelengths, have a great potential as light source for high-throughput, multiple-analyte, quantitative chemical analysis.

Paper Details

Date Published: 26 May 2011
PDF: 8 pages
Proc. SPIE 8025, Smart Biomedical and Physiological Sensor Technology VIII, 802509 (26 May 2011); doi: 10.1117/12.885175
Show Author Affiliations
Sanghan Park, Missouri Univ. of Science and Technology (United States)
Satya Gowthami Achanta, Missouri Univ. of Science and Technology (United States)
Chang-Soo Kim, Missouri Univ. of Science and Technology (United States)


Published in SPIE Proceedings Vol. 8025:
Smart Biomedical and Physiological Sensor Technology VIII
Brian M. Cullum; Eric S. McLamore, Editor(s)

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