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Fabricating optical fiber imaging sensors using ink jet printing technology: a pH sensor proof-of-concept.

Authors
  • Carter, J Chance
  • Alvis, Rosa M
  • Brown, Steve B
  • Langry, Kevin C
  • Wilson, Thomas S
  • McBride, Mary T
  • Myrick, M L
  • Cox, W Royall
  • Grove, Michael E
  • Colston, Bill W
Type
Published Article
Journal
Biosensors and Bioelectronics
Publisher
Elsevier
Publication Date
Jan 15, 2006
Volume
21
Issue
7
Pages
1359–1364
Identifiers
PMID: 16230001
Source
Medline
License
Unknown

Abstract

We demonstrate the feasibility of using Drop-on-Demand microjet printing technology for fabricating imaging sensors by reproducibly printing an array of photo-polymerizable sensing elements, containing a pH sensitive indicator, on the surface of an optical fiber image guide. The reproducibility of the microjet printing process is excellent for microdot (i.e. micrometer-sized polymer) sensor diameter (92.2+/-2.2 microm), height (35.0+/-1.0 microm), and roundness (0.00072+/-0.00023). pH sensors were evaluated in terms of pH sensing ability (< or =2% sensor variation), response time, and hysteresis using a custom fluorescence imaging system. In addition, the microjet technique has distinct advantages over other fabrication methods, which are discussed in detail.

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