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Two-Dimensional Microfluidic Photomasking for Microarray Patterning

[+] Author Affiliations
Jonathan McKechnie, David A. Sinton

University of Victoria

Paper No. IMECE2005-81844, pp. 329-333; 5 pages
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Fluids Engineering
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4219-3 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME


This paper presents a novel microfluidic photomasking strategy. Two opaque, dyed streams hydrodynamically focus a transparent stream to define a line of light transmission. Aligning two separate chips orthogonal to each other defines a small area where the transparent streams overlap. A proof-of-concept chip was developed and tested using visible-spectrum light and a visible light absorbing dye. Probe spot sizes of ~80μm are attainable, with spacing between spots of ~150μm.

Copyright © 2005 by ASME
Topics: Microfluidics



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