<div class="csl-bib-body">
<div class="csl-entry">Baltzaki, C. I. M., Helfert, S., Zandrini, T., Rohatschek, A., Rufin, M., Machata, P., Zahoranová, A., Andriotis, O. G., Thurner, P. J., Ovsianikov, A., Liska, R., & Baudis, S. (2025, June). <i>Micropatterning Confined Surfaces with Polymer Brushes via Two-Photon-Initiated RAFT Polymerization</i> [Poster Presentation]. TCH Science Days 2025 – Faculty of Technical Chemistry, Wien, Austria. http://hdl.handle.net/20.500.12708/224957</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/224957
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dc.description.abstract
To ensure their intended functionality, exact control over material surface properties is necessary when biological systems are in contact with them. Excellent options for on-demand surface modification include polymer brushes which are used in tissue engineering substrates, microelectronic components, biosensors, and microfluidic devices.[1] Existing brush fabrication methods include photomasks and direct laser writing, but are limited in patterning resolution. In this study, polymer brushes were photopatterned on confined glass substrates using two-photon initiated reversible addition fragmentation chain transfer, 2PRAFT.[2] The biocompatible and hydrophilic monomer N-acryloylmorpholine was chosen to synthesise the polymer brushes. The system was first optimised via RAFT polymerisation and blue light irradiation to establish polymerisation solution composition. Glass wafers were covalently modified with RAFT agent 4-cyano-4-(((dodecylthio)carbonothioyl)thio)pentanoic acid (CDTPA) via a two-step procedure, using Ivocerin as the photoinitiator. Brush formation kinetics were monitored, and brush thickness was measured by ellipsometry, with a maximum of 10.4 ± 1.5 nm. X-ray photoelectron spectroscopy (XPS) was used for the determination of the brushes’ chemical composition. The developed system was further extended to two-photon-initiated RAFT (2PRAFT) polymerisation, utilising a well-known 2P fabrication initiator. The patterned polymer brushes and their morphology were analysed using confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM). This method demonstrated its versatility through the capability to print multicoloured patterns and also to print on vertically stacked surfaces.
Funding by the Christian Doppler Research Association within the framework of a Christian Doppler Laboratory for “Advanced Polymers for Biomaterials and 3D Printing” and the financial support by the Austrian Federal Ministry for Digital and Economic Affairs and the National foundation for Research, Technology and Development are gratefully acknowledged.
References:
[1] Zoppe, J.O.; Ataman, N.C.; Mocny, P.; Wang, J.; Moraes, J.; Klok, H.A. Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. Chem. Rev. 2017, 117, 1105–1318, DOI:10.1021/acs.chemrev.6b00314 [2] Helfert, S.; Zandrini, T.; Rohatschek, A.; Rufin, M.; Machata, P.; Zahoranová, A.; Andriotis, O.G.; Thurner, P.J.; Ovsianikov, A.; Liska, R.; Baudis, S.; Micropatterning of Confined Surfaces with Polymer Brushes by Two-Photon-Initiated Reversible Addition–Fragmentation
en
dc.description.sponsorship
Christian Doppler Forschungsgesells
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dc.language.iso
en
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dc.subject
RAFT polymerization
en
dc.subject
two-photon polymerization
en
dc.subject
2PP
en
dc.subject
Polymer brushes
en
dc.title
Micropatterning Confined Surfaces with Polymer Brushes via Two-Photon-Initiated RAFT Polymerization
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Slovak Academy of Sciences, Slovakia
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dc.relation.grantno
CDL Baudis
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dc.type.category
Poster Presentation
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tuw.project.title
Christian Doppler Labor für Fortschrittliche Polymere für Biomaterialien und den 3D Druck
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
M8
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tuw.researchTopic.id
M4
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Structure-Property Relationsship
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tuw.researchTopic.name
Non-metallic Materials
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tuw.researchTopic.value
60
-
tuw.researchTopic.value
20
-
tuw.researchTopic.value
20
-
tuw.publication.orgunit
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
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tuw.publication.orgunit
E317-02 - Forschungsbereich Biomechanik
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tuw.publication.orgunit
E308-02-3 - Forschungsgruppe 3D Printing and Biofabrication
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tuw.publication.orgunit
E056-12 - Fachbereich ENROL DP
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tuw.publication.orgunit
E056-21 - Fachbereich SOLVER - Skills for Medical Device Research
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tuw.publication.orgunit
E056-14 - Fachbereich Mature Tissue
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tuw.author.orcid
0000-0003-4121-2731
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tuw.author.orcid
0000-0003-3851-4675
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tuw.author.orcid
0000-0003-2214-4331
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tuw.author.orcid
0000-0002-6577-7238
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tuw.author.orcid
0000-0003-4107-1510
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tuw.author.orcid
0000-0001-7588-9041
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tuw.author.orcid
0000-0001-5846-0198
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tuw.author.orcid
0000-0001-7865-1936
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tuw.author.orcid
0000-0002-5390-0761
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tuw.event.name
TCH Science Days 2025 – Faculty of Technical Chemistry
en
dc.description.sponsorshipexternal
Nationalstiftung für Forschung, Technologie und Entwicklung
-
dc.description.sponsorshipexternal
Bundesministerium für Digitalisierung und Wirtschaftsstandort
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tuw.event.startdate
17-06-2025
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tuw.event.enddate
18-06-2025
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Wien
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tuw.event.country
AT
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tuw.event.presenter
Baltzaki, Chrissie I.M.
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wb.sciencebranch
Chemie
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wb.sciencebranch
Chemische Verfahrenstechnik
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wb.sciencebranch
Werkstofftechnik
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.oefos
2040
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wb.sciencebranch.oefos
2050
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wb.sciencebranch.value
60
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wb.sciencebranch.value
20
-
wb.sciencebranch.value
20
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item.fulltext
no Fulltext
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item.languageiso639-1
en
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item.cerifentitytype
Publications
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item.grantfulltext
none
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item.openairecristype
http://purl.org/coar/resource_type/c_18co
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item.openairetype
conference poster not in proceedings
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crisitem.project.funder
Christian Doppler Forschungsgesells
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crisitem.project.grantno
CDL Baudis
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crisitem.author.dept
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
-
crisitem.author.dept
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
-
crisitem.author.dept
E308-02-3 - Forschungsgruppe 3D Printing and Biofabrication
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crisitem.author.dept
E317-02 - Forschungsbereich Biomechanik
-
crisitem.author.dept
E317-02 - Forschungsbereich Biomechanik
-
crisitem.author.dept
Department of Composite Materials - Polymer Institute (Bratislava, SK)
-
crisitem.author.dept
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
-
crisitem.author.dept
E317-02 - Forschungsbereich Biomechanik
-
crisitem.author.dept
E317 - Institut für Leichtbau und Struktur-Biomechanik
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crisitem.author.dept
E308-02-3 - Forschungsgruppe 3D Printing and Biofabrication
