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Photoresponsive Hydrogel Microstructure Fabricated by Two‐Photon Initiated Polymerization
Author(s) -
Watanabe T.,
Akiyama M.,
Totani K.,
Kuebler S.M.,
Stellacci F.,
Wenseleers W.,
Braun K.,
Marder S.R.,
Perry J.W.
Publication year - 2002
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/1616-3028(20020916)12:9<611::aid-adfm611>3.0.co;2-3
Subject(s) - materials science , comonomer , cantilever , acetylacetone , photoexcitation , methylene blue , polymer chemistry , lithography , microfabrication , irradiation , composite material , optoelectronics , polymer , polymerization , organic chemistry , catalysis , medicine , chemistry , physics , alternative medicine , pathology , photocatalysis , fabrication , nuclear physics , excited state
A photoresponsive polymeric hydrogel cantilever that deflects under illumination has been fabricated by using two‐photon three‐dimensional lithography. The hydrogel was prepared from a comonomer solution containing acryloylacetone, acrylamide, and N , N ′‐methylene bisacrylamide. The photoresponse of the cantilever was activated by photoexcitation of acetylacetone groups at 244 nm. Deflection of the cantilever by ∼ 45° was effected upon UV irradiation for 20 min.