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Shape Morphing: Harnessing Photochemical Shrinkage in Direct Laser Writing for Shape Morphing of Polymer Sheets (Adv. Mater. 42/2017)
Author(s) -
Bauhofer Anton A.,
Krödel Sebastian,
Rys Jan,
Bilal Osama R.,
Constantinescu Andrei,
Daraio Chiara
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201770307
Subject(s) - morphing , shrinkage , materials science , planar , composite material , photopolymer , bending , laser , realization (probability) , polymer , fabrication , nanotechnology , optics , computer graphics (images) , polymerization , computer science , physics , medicine , statistics , mathematics , alternative medicine , pathology
Shape‐morphing planar microstructures fabricated by direct laser writing are presented by Chiara Daraio and co‐workers in article number 1703024 . Biomimetic lotus flowers (violet) and shark skins (green) exemplify controlled self‐bending, activated by residual stresses that emerge during photochemical shrinkage. The stress‐induced transformations enable pre‐programming of complex geometries into flat sheets to form three‐dimensional polymer structures with embedded functionality and radically reduced fabrication times. Cover idea: Andrei Constantinescu, Irina Niculescu. Graphical realization: Maria Bauhofer.