Fabrication of a Microneedle Using Human Hair

概要

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In this study, we developed a novel microneedle design to inject medication into the skin and to remove blood from a blood vessel. A drilling machine and chemicals were used to drill a hollow needle bore into the center of a strand of human hair. Our results demonstrate that a pen-shaped microneedle has been fabricated at a length of 1.1 mm, a base diameter of 80 μm, and a tip diameter of 40 μm. The hair microneedle was sufficiently strong to insert into the meat of a chicken leg.
2009-09-25