Digitally-modulated light source utilizing a low-cost LCD projector for high throughput capillary electrophoresis detection

Shi Wei Lin, Dai Yang Wu, Lung Ming Fu, Che Hsin Lin

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper presents a novel detection scheme for high throughput capillary electrophoresis (CE) applications which utilizes a low-cost LCD projector as the light source. Instead of switching a number of conventional filter sets for multiwavelength detection purpose, a commercial LCD (liquid crystal device) projector is used to digitally modulate the projecting wavelength from the projector. An ultraviolet- visible-near infrared (UV-Vis-NIR) spectrometer is adopted to detect the emitted fluorescence synchronously with the switching light excluding spatial filter sets. A mixed sample composed of three fluorescent dyes and a labeled single-stranded DNA sample were successfully separated and detected using this proposed system.

Original languageEnglish
Pages940-942
Number of pages3
Publication statusPublished - 2008 Jan 1
Event12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 - San Diego, CA, United States
Duration: 2008 Oct 122008 Oct 16

Other

Other12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008
CountryUnited States
CitySan Diego, CA
Period08-10-1208-10-16

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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