PNIPAM/SWCNT-Based Hydrogel Micro-Gripper Driven by Infrared Light for Intravascular Surgery

Takaya Kuroda, Hiroaki Onoe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes an infrared (IR) light-responsive hydrogel micro-gripper for intravascular surgery. The hydrogel micro-gripper was fabricated by two-step photolithography that can design the motion of gripper. The gripping motion was controlled by IR exposure that was efficiently and selectively absorbed by the single walled carbon nanotubes (SWCNT) to generate heat. We confirmed the gripping speed in micro-scale gripper (width: sim 200 mumathrm{m}) was faster than that of the large scale (width: ∼2 mm). We demonstrated the hydrogel micro-gripper firmly gripped and kept holding a 200-mumathrm{m}-diameter bead with the chamber being shaken. We believe that our hydrogel micro-gripper can be applied for medical applications such as low-invasive medical practices because it could grip cells or foreign objects by being exposed to IR light irradiated from outside of the body.

Original languageEnglish
Title of host publication33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages540-541
Number of pages2
ISBN (Electronic)9781728135809
DOIs
Publication statusPublished - 2020 Jan
Event33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020 - Vancouver, Canada
Duration: 2020 Jan 182020 Jan 22

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2020-January
ISSN (Print)1084-6999

Conference

Conference33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
CountryCanada
CityVancouver
Period20/1/1820/1/22

Keywords

  • Thermo-responsive gel
  • infrared light-responsive gel
  • intravascular surgery
  • low-invasive
  • photolithography
  • single walled carbon nanotubes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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