Journal
BIOMICROFLUIDICS
Volume 5, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3569945
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- Sandia National Laboratories' Laboratory Directed Research and Development (LDRD)
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In this study, carbon fiber electrodes were incorporated within a hollow microneedle array, which was fabricated using a digital micromirror device-based stereolithography instrument. Cell proliferation on the acrylate-based polymer used in microneedle fabrication was examined with human dermal fibroblasts and neonatal human epidermal keratinocytes. Studies involving full-thickness cadaveric porcine skin and trypan blue dye demonstrated that the hollow microneedles remained intact after puncturing the outermost layer of cadaveric porcine skin. The carbon fibers underwent chemical modification in order to enable detection of hydrogen peroxide and ascorbic acid; electrochemical measurements were demonstrated using integrated electrode-hollow microneedle devices. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3569945]
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