Fabrication of N-isopropylacrylamide (NIPAAM) based micro-hydrogel using UV LED microscope

  • Ho Lee
  • , Seong Young Ko
  • , Jong Oh Park
  • , Dongshin Kim
  • , Sathish Akella
  • , Ye Zhang
  • , Seth Fraden
  • , Sukho Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Poly-N-isopropylacrylamide (poly-NIPAAM) has been widely used in tissue engineering and micro-structure in micro-fluidic applications. Generally, NIPAAM is polymerized and patterned by a conventional UV irradiation or UV lithography. This paper proposes a photo-polymerization method of NIPAAM using UV LED microscope. Through the combination of a commercialized UV LED, optical components, an objective lens and X-Y-Z motorized stage, we fabricated a UV LED microscope for the photo-polymerization of NIPAAM. In addition, for the investigation of the polymerization procedure, CCD camera and an illumination light source using red LED and optical components were installed. For the polymerization of NIPAAM solution, a simple micro-fluidic channel was fabricated and the NIPAAM base solution was injected into the micro-fluidic channel. If the UV LED beam was focused on the channel with NIPAAM solution, the NIPAAM can be polymerized in the focused region. Finally, we can directly fabricate micro-structures of poly-NIPAAM by using the proposed UV LED microscope.

Original languageEnglish
Title of host publicationInternational Conference on Control, Automation and Systems
PublisherIEEE Computer Society
Pages342-344
Number of pages3
ISBN (Electronic)9788993215069
DOIs
StatePublished - 16 Dec 2014
Event2014 14th International Conference on Control, Automation and Systems, ICCAS 2014 - Gyeonggi-do, Korea, Republic of
Duration: 22 Oct 201425 Oct 2014

Publication series

NameInternational Conference on Control, Automation and Systems
ISSN (Print)1598-7833

Conference

Conference2014 14th International Conference on Control, Automation and Systems, ICCAS 2014
Country/TerritoryKorea, Republic of
CityGyeonggi-do
Period22/10/1425/10/14

Bibliographical note

Publisher Copyright:
© 2014 Institute of Control, Robotics and Systems (ICROS).

Keywords

  • LED microscope
  • Micropatterning
  • Photopolymerization
  • Poly-N-isopropylacrylamide (poly-NIPAAM)
  • UV lithography

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