Shape-changing polymer micro-origami with fully reprogrammable spatio-temporal folding
Final Report Abstract
In summary, our project involved understanding the fundamental principles of fabricating actuating materials as well as developing new approaches for the design of actuating materials and structures. We synthesized polymers with different chemical structures and molecular weights and studied the impact of their structure on their actuation behavior. We applied obtained knowledge to fabricate sheets that undergo programmed and highly complex shape transformation driven by changes in pH, temperature and light. In particular, we adapted different techniques including electrospinning, melt electrowriting and stereolithography to produced actuating structures. We also advanced the synthesis of (plasmonic) gold nanoparticles, by taking advantage of the predictive capability machine learning algorithms offer for achieving plasmon resonance engineering by adjusting the synthesis conditions. This is an important progress for practitioners in this domain, because the complex mechanism behind the nanoparticle synthesis made rationalized synthesis design a complicated challenge in the past.
Publications
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4D‐Printable Photocrosslinkable Polyurethane‐Based Inks for Tissue Scaffold and Actuator Applications. Small, 20(6).
Goodarzi, Hosseinabadi Hossein; Biswas, Arpan; Bhusal, Anant; Yousefinejad, Ali; Lall, Aastha; Zimmermann, Wolfram‐Hubertus; Miri, Amir K. & Ionov, Leonid
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Validating and Utilizing Machine Learning Methods to Investigate the Impacts of Synthesis Parameters in Gold Nanoparticle Synthesis. The Journal of Physical Chemistry C, 127(2), 1117-1125.
Schletz, Daniel; Breidung, Morten & Fery, Andreas
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4D Fabrication of Two‐Way Shape Memory Polymeric Composites by Electrospinning and Melt Electrowriting. Macromolecular Rapid Communications, 45(11).
Pasini, Chiara; Soreño, Zhander Vohr; Schönfeld, Dennis; Pretsch, Thorsten; Constante, Gissela; Sadilov, Ilia & Ionov, Leonid
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Modular photoorigami-based 4D manufacturing of vascular junction elements. Journal of Materials Chemistry B, 12(22), 5405-5417.
Biswas, Arpan; Apsite, Indra; Rosenfeldt, Sabine; Bite, Ivita; Vitola, Virginija & Ionov, Leonid
