Scalable Fabrication of PEGDA Microneedles Using UV Exposure via a Rotating Prism

H. Takahashi, Y. J. Heo, I. Shimoyama

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We propose a simple, fast, height-scalable, and direct way to fabricate highly biocompatible polyethylene glycol diacrylate (PEGDA) microneedles. A needle-shaped distribution of ultraviolet (UV) exposure dose is formed in PEGDA by applying UV light through a rotating prism. A prism makes UV light rays bend, such that the base angle of the prism determines the inclined angle of the light. Thus, the microneedle height can be controlled by varying the base angles of the prism. We experimentally demonstrate the direct height-scalable potential. The microneedle height decreases and the microneedle tip angle increases with increases in the base angle of the prism. These results indicate that the microneedle geometry can be easily controlled by the base angle of a prism without additional microfabrication. In addition, unlike photoresist microneedles, PEGDA does not require any thermal baking, thus enabling well-defined symmetric needle formation with short process time. Therefore, the present method can facilitate PEGDA microneedles to practical applications.

本文言語English
論文番号8022864
ページ(範囲)990-992
ページ数3
ジャーナルJournal of Microelectromechanical Systems
26
5
DOI
出版ステータスPublished - 2017 10
外部発表はい

ASJC Scopus subject areas

  • 機械工学
  • 電子工学および電気工学

フィンガープリント

「Scalable Fabrication of PEGDA Microneedles Using UV Exposure via a Rotating Prism」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル