Nano-3D-Printed Photochromic Micro-Objects
dc.contributor.author
Ulrich, Sebastian
dc.contributor.author
Wang, Xiaopu
dc.contributor.author
Rottmar, Markus
dc.contributor.author
Rossi, René Michel
dc.contributor.author
Nelson, Bradley J.
dc.contributor.author
Bruns, Nico
dc.contributor.author
Müller, Ralph
dc.contributor.author
Maniura-Weber, Katharina
dc.contributor.author
Qin, Xiao-Hua
dc.contributor.author
Boesel, Luciano F.
dc.date.accessioned
2021-08-02T12:37:54Z
dc.date.available
2021-07-14T02:37:09Z
dc.date.available
2021-08-02T12:37:54Z
dc.date.issued
2021-07-01
dc.identifier.issn
1613-6810
dc.identifier.issn
1613-6829
dc.identifier.other
10.1002/smll.202101337
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/494406
dc.identifier.doi
10.3929/ethz-b-000494406
dc.description.abstract
Molecular photoswitches that can reversibly change color upon irradiation are promising materials for applications in molecular actuation and photoresponsive materials. However, the fabrication of photochromic devices is limited to conventional approaches such as mold casting and spin-coating, which cannot fabricate complex structures. Reported here is the first photoresist for direct laser writing of photochromic 3D micro-objects via two-photon polymerization. The integration of photochromism into thiol–ene photo-clickable resins enables rapid two-photon laser processing of highly complex microstructures and facile postmodification using a series of donor–acceptor Stenhouse adduct (DASA) photoswitches with different excitation wavelengths. The versatility of thiol–ene photo-click reactions allows fine-tuning of the network structure and physical properties as well as the type and concentration of DASA. When exposed to visible light, these microstructures exhibit excellent photoresponsiveness and undergo reversible color-changing via photoisomerization. It is demonstrated that the fluorescence variations of DASAs can be used as a reporter of photoswitching and thermal recovery, allowing the reading of DASA-containing sub-micrometric structures in 3D. This work delivers a new approach for custom microfabrication of 3D photochromic objects with molecularly engineered color and responsiveness.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley-VCH
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Nano-3D-Printed Photochromic Micro-Objects
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-05-24
ethz.journal.title
Small
ethz.journal.volume
17
en_US
ethz.journal.issue
26
en_US
ethz.pages.start
2101337
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Mini-Bone-on-a-Chip: Microfluidic Engineering of 3D Osteocyte Networks in Void-forming Hydrogels
en_US
ethz.grant
Biomimetic 3D Laser Microprinting of Functional Bone Models
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Weinheim
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02518 - Institut für Biomechanik / Institute for Biomechanics::03565 - Müller, Ralph / Müller, Ralph
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02620 - Inst. f. Robotik u. Intelligente Systeme / Inst. Robotics and Intelligent Systems::03627 - Nelson, Bradley J. / Nelson, Bradley J.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02620 - Inst. f. Robotik u. Intelligente Systeme / Inst. Robotics and Intelligent Systems::03627 - Nelson, Bradley J. / Nelson, Bradley J.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02518 - Institut für Biomechanik / Institute for Biomechanics::03565 - Müller, Ralph / Müller, Ralph
en_US
ethz.grant.agreementno
190345
ethz.grant.agreementno
SEED-21 18-2
ethz.grant.fundername
SNF
ethz.grant.fundername
ETHZ
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.funderDoi
10.13039/501100003006
ethz.grant.program
Spark
ethz.grant.program
ETH Seeds
ethz.date.deposited
2021-07-14T02:37:12Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-02T12:37:59Z
ethz.rosetta.lastUpdated
2022-03-29T10:52:38Z
ethz.rosetta.versionExported
true
ethz.COinS
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