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Proceedings Paper

Hydrogel microarray for monitoring of pH and dissolved oxygen in cell culture media
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Paper Abstract

A combined dissolved oxygen and pH sensitive poly(ethylene glycol) hydrogel microarray was fabricated for use in monitoring cell culture media. The sensor was prepared by filling micro-channels with a hydrogel precursor solution containing pH or oxygen sensitive fluorophores. This solution was then cured by passing UV light through a mask placed to the channels, creating array with 100 μm elements. An imaging system with a monochrome CCD camera and appropriate interference filters was used to capture the fluorescence image induced by excitation of microstructure in transmission mode. The sensor performance was characterized in buffer solution (PBS) and cell culture media (MEM) across the biological range of pH (6-8) and dissolved oxygen (3-21%).

Paper Details

Date Published: 27 February 2006
PDF: 7 pages
Proc. SPIE 6094, Optical Diagnostics and Sensing VI, 609402 (27 February 2006); doi: 10.1117/12.645096
Show Author Affiliations
S. Lee, Texas A&M Univ. (United States)
B. L. Ibey, Texas A&M Univ. (United States)
M. V. Pishko, Pennsylvania State Univ. (United States)
G. L. Coté, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 6094:
Optical Diagnostics and Sensing VI
Gerard L. Coté; Alexander V. Priezzhev, Editor(s)

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