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Fabrication of Microchannels Having Sub-30 nm Nanofibers Inside of Them via Overlapping Weakly Two-Photon Polymerized Region

저밀도 이광자 광중합 영역의 중첩방법을 이용한 기능성 마이크로 채널 제작에 관한 연구

  • 박상후 (부산대학교 기계공학부) ;
  • 임태우 (한국과학기술원 대학원 기계공학과) ;
  • 양동열 (한국과학기술원 기계공학과)
  • Published : 2007.12.01

Abstract

Experimental studies on the fabrication of sub-30 nm nanofibers using weakly two-photon induced photopolymerized region have been carried out. For the generation of nanofibers inside or outside microstructures, an over-polymerizing method involving a long exposure technique (LET) was proposed. Such nanofibers can find meaningful applications as bio-filters, mixers, and many other uses in diverse research field. A multitude of nanofibers with a notably high resolution (about 22 nm) in two-photon polymerization was achieved using the LET. Furthermore, it was demonstrated that the LET can be employed for the direct fabrication of various embossing patterns by controlling the exposure duration and the interval between yokels. Thin interconnecting networks are formed regularly in the boundary of the over-polymerized region, which allows for the creation of various pattern shapes. Overall of this work, some patterns including nanofibers are fabricated by the LET.

Keywords

Two-Photon Polymerization;Weakly-Polymerized Region;Nanofiber;Three-Dimensional Microstructure

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