Fluorescence intensity measurements with display screen as excitation source

Sanghan Park; Satya Gowthami Achanta; Chang-Soo Kim

doi:10.1117/12.885175

26 May 2011 Fluorescence intensity measurements with display screen as excitation source

Sanghan Park, Satya Gowthami Achanta, Chang-Soo Kim

Proceedings Volume 8025, Smart Biomedical and Physiological Sensor Technology VIII; 802509 (2011) https://doi.org/10.1117/12.885175
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

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.

Citation Download Citation

Sanghan Park, Satya Gowthami Achanta, and Chang-Soo Kim "Fluorescence intensity measurements with display screen as excitation source", Proc. SPIE 8025, Smart Biomedical and Physiological Sensor Technology VIII, 802509 (26 May 2011); https://doi.org/10.1117/12.885175

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