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Tunable Photonic Structures via Photomechanical Actuation

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Publications

Programmable responsive hydrogels inspired by classical conditioning algorithm

Author(s): Hang Zhang, Hao Zeng, Arri Priimagi, Olli Ikkala
Published in: Nature Communications, 10/1, 2019, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-019-11260-3

Viewpoint: Pavlovian Materials—Functional Biomimetics Inspired by Classical Conditioning

Author(s): Hang Zhang, Hao Zeng, Arri Priimagi, Olli Ikkala
Published in: Advanced Materials, 32/20, 2020, Page(s) 1906619, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201906619

Design principles for non-reciprocal photomechanical actuation

Author(s): Markus Lahikainen, Hao Zeng, Arri Priimagi
Published in: Soft Matter, 16/25, 2020, Page(s) 5951-5958, ISSN 1744-683X
Publisher: Royal Society of Chemistry
DOI: 10.1039/d0sm00624f

Reconfiguring Gaussian Curvature of Hydrogel Sheets with Photoswitchable Host–Guest Interactions

Author(s): Alexa S. Kuenstler, Markus Lahikainen, Hantao Zhou, Wenwen Xu, Arri Priimagi, Ryan C. Hayward
Published in: ACS Macro Letters, 9/8, 2020, Page(s) 1172-1177, ISSN 2161-1653
Publisher: American Chemical Society
DOI: 10.1021/acsmacrolett.0c00469

Fast Switching of Bright Whiteness in Channeled Hydrogel Networks

Author(s): Amanda Eklund, Hang Zhang, Hao Zeng, Arri Priimagi, Olli Ikkala
Published in: Advanced Functional Materials, 30/28, 2020, Page(s) 2000754, ISSN 1616-301X
Publisher: John Wiley & Sons Ltd.
DOI: 10.1002/adfm.202000754

Bioinspired underwater locomotion of light-driven liquid crystal gels

Author(s): Hamed Shahsavan, Amirreza Aghakhani, Hao Zeng, Yubing Guo, Zoey S. Davidson, Arri Priimagi, Metin Sitti
Published in: Proceedings of the National Academy of Sciences, 117/10, 2020, Page(s) 5125-5133, ISSN 0027-8424
Publisher: National Academy of Sciences
DOI: 10.1073/pnas.1917952117

Continuously tunable polymer membrane laser

Author(s): Alex Berdin, Heikki Rekola, Oksana Sakhno, Michael Wegener, Arri Priimagi
Published in: Optics Express, 27/18, 2019, Page(s) 25634, ISSN 1094-4087
Publisher: Optical Society of America
DOI: 10.1364/oe.27.025634

All-Optical Emission Control and Lasing in Plasmonic Lattices

Author(s): Jani M. Taskinen, Antti J. Moilanen, Heikki Rekola, Kim Kuntze, Arri Priimagi, Päivi Törmä, Tommi K. Hakala
Published in: ACS Photonics, 7/10, 2020, Page(s) 2850-2858, ISSN 2330-4022
Publisher: American Chemical Society
DOI: 10.1021/acsphotonics.0c01099

Photoresponsive Halogen-Bonded Liquid Crystals: The Role of Aromatic Fluorine Substitution

Author(s): Marco Saccone, Matthias Spengler, Michael Pfletscher, Kim Kuntze, Matti Virkki, Christoph Wölper, Robert Gehrke, Georg Jansen, Pierangelo Metrangolo, Arri Priimagi, Michael Giese
Published in: Chemistry of Materials, 31/2, 2018, Page(s) 462-470, ISSN 0897-4756
Publisher: American Chemical Society
DOI: 10.1021/acs.chemmater.8b04197

Kirigami‐Based Light‐Induced Shape‐Morphing and Locomotion

Author(s): Yu‐Chieh Cheng, Hao‐Chuan Lu, Xuan Lee, Hao Zeng, Arri Priimagi
Published in: Advanced Materials, 32/7, 2019, Page(s) 1906233, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201906233

A bifacial colour-tunable system via combination of a cholesteric liquid crystal network and hydrogel

Author(s): Owies M. Wani, Albertus P. H. J. Schenning, Arri Priimagi
Published in: Journal of Materials Chemistry C, 8/30, 2020, Page(s) 10191-10196, ISSN 2050-7534
Publisher: Royal Society of Chemistry
DOI: 10.1039/d0tc02189j

Efficient Light-Induced Phase Transitions in Halogen-Bonded Liquid Crystals

Author(s): Francisco Fernandez-Palacio, Mikko Poutanen, Marco Saccone, Antti Siiskonen, Giancarlo Terraneo, Giuseppe Resnati, Olli Ikkala, Pierangelo Metrangolo, Arri Priimagi
Published in: Chemistry of Materials, 28/22, 2016, Page(s) 8314-8321, ISSN 0897-4756
Publisher: American Chemical Society
DOI: 10.1021/acs.chemmater.6b03460

Light Robots: Bridging the Gap between Microrobotics and Photomechanics in Soft Materials

Author(s): Hao Zeng, Piotr Wasylczyk, Diederik S. Wiersma, Arri Priimagi
Published in: Advanced Materials, 2017, Page(s) 1703554, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201703554

A light-driven artificial flytrap

Author(s): Owies M. Wani, Hao Zeng, Arri Priimagi
Published in: Nature Communications, 8, 2017, Page(s) 15546, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/ncomms15546

Controlling azobenzene photoswitching through combined ortho -fluorination and -amination

Author(s): Z. Ahmed, A. Siiskonen, M. Virkki, A. Priimagi
Published in: Chemical Communications, 53/93, 2017, Page(s) 12520-12523, ISSN 1359-7345
Publisher: Royal Society of Chemistry
DOI: 10.1039/C7CC07308A

Light-Driven, Caterpillar-Inspired Miniature Inching Robot

Author(s): Hao Zeng, Owies M. Wani, Piotr Wasylczyk, Arri Priimagi
Published in: Macromolecular Rapid Communications, 2017, Page(s) 1700224, ISSN 1022-1336
Publisher: John Wiley & Sons Ltd.
DOI: 10.1002/marc.201700224

Self-Regulating Iris Based on Light-Actuated Liquid Crystal Elastomer

Author(s): Hao Zeng, Owies M. Wani, Piotr Wasylczyk, Radosław Kaczmarek, Arri Priimagi
Published in: Advanced Materials, 29/30, 2017, Page(s) 1701814, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201701814

Programming Photoresponse in Liquid Crystal Polymer Actuators with Laser Projector

Author(s): Owies M. Wani, Hao Zeng, Piotr Wasylczyk, Arri Priimagi
Published in: Advanced Optical Materials, 2017, Page(s) 1700949, ISSN 2195-1071
Publisher: Wiley
DOI: 10.1002/adom.201700949

Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensing

Author(s): Mikko Poutanen, Zafar Ahmed, Lauri Rautkari, Olli Ikkala, Arri Priimagi
Published in: ACS Macro Letters, 7/3, 2018, Page(s) 381-386, ISSN 2161-1653
Publisher: American Chemical Society
DOI: 10.1021/acsmacrolett.8b00093

An Artificial Nocturnal Flower via Humidity-Gated Photoactuation in Liquid Crystal Networks

Author(s): Owies M. Wani, Rob Verpaalen, Hao Zeng, Arri Priimagi, Albert P. H. J. Schenning
Published in: Advanced Materials, 2018, Page(s) 1805985, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201805985

Reconfigurable photoactuator through synergistic use of photochemical and photothermal effects

Author(s): Markus Lahikainen, Hao Zeng, Arri Priimagi
Published in: Nature Communications, 9/1, 2018, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-018-06647-7

ortho -Fluorination of azophenols increases the mesophase stability of photoresponsive hydrogen-bonded liquid crystals

Author(s): Marco Saccone, Kim Kuntze, Zafar Ahmed, Antti Siiskonen, Michael Giese, Arri Priimagi
Published in: Journal of Materials Chemistry C, 6/37, 2018, Page(s) 9958-9963, ISSN 2050-7534
Publisher: Royal Society of Chemistry
DOI: 10.1039/C8TC02611D

Associative Learning by Classical Conditioning in Liquid Crystal Network Actuators

Author(s): Hao Zeng, Hang Zhang, Olli Ikkala, Arri Priimagi
Published in: Matter, 2/1, 2020, Page(s) 194-206, ISSN 2590-2385
Publisher: Elsevier Inc.
DOI: 10.1016/j.matt.2019.10.019

Light-fuelled freestyle self-oscillators

Author(s): Hao Zeng, Markus Lahikainen, Li Liu, Zafar Ahmed, Owies M. Wani, Meng Wang, Hong Yang, Arri Priimagi
Published in: Nature Communications, 10/1, 2019, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-019-13077-6

Digital holographic microscopy for real-time observation of surface-relief grating formation on azobenzene-containing films

Author(s): Heikki Rekola, Alex Berdin, Chiara Fedele, Matti Virkki, Arri Priimagi
Published in: Scientific Reports, 10/1, 2020, ISSN 2045-2322
Publisher: Nature Publishing Group
DOI: 10.1038/s41598-020-76573-6

Tunable Photomechanics in Diarylethene-Driven Liquid Crystal Network Actuators

Author(s): Markus Lahikainen, Kim Kuntze, Hao Zeng, Seidi Helantera, Stefan Hecht, Arri Priimagi
Published in: ACS Applied Materials & Interfaces, 12/42, 2020, Page(s) 47939-47947, ISSN 1944-8244
Publisher: American Chemical Society
DOI: 10.1021/acsami.0c12735

Expanding excitation wavelengths for azobenzene photoswitching into the near-infrared range via endothermic triplet energy transfer

Author(s): Jussi Isokuortti, Kim Kuntze, Matti Virkki, Zafar Ahmed, Elina Vuorimaa-Laukkanen, Mikhail A. Filatov, Andrey Turshatov, Timo Laaksonen, Arri Priimagi, Nikita A. Durandin
Published in: Chemical Science, 12/21, 2021, Page(s) 7504-7509, ISSN 2041-6520
Publisher: Royal Society of Chemistry
DOI: 10.1039/d1sc01717a

Optically induced crossover from weak to strong coupling regime between surface plasmon polaritons and photochromic molecules

Author(s): Benjamin O. Asamoah, Sughra Mohamed, Srijoyee Datta, Petri Karvinen, Heikki Rekola, Arri Priimagi, Tommi K. Hakala
Published in: Optics Express, 28/18, 2020, Page(s) 26509, ISSN 1094-4087
Publisher: Optical Society of America
DOI: 10.1364/oe.400359

Liquid Crystal Polymer Networks and Elastomers for Light‐Fueled Robotics

Author(s): Hao Zeng, Markus Lahikainen, Owies Wani, Alex Berdin, Arri Priimagi
Published in: Photoactive Functional Soft Materials: Preparation, Properties, and Applications, 2018, Page(s) 197-226, ISBN 978-3-527-34482-6
Publisher: Wiley