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  Laser-induced forward transfer of soft material nanolayers with millisecond pulses shows contact-based material deposition

Paris, G., Klinkusch, A., Heidepriem, J., Tsouka, A., Zhang, J., Mende, M., et al. (2020). Laser-induced forward transfer of soft material nanolayers with millisecond pulses shows contact-based material deposition. Applied Surface Science, 508: 144973. doi:10.1016/j.apsusc.2019.144973.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-6FA2-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-841B-8
Genre: Journal Article

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 Creators:
Paris, Grigori1, Author              
Klinkusch, Andreas, Author
Heidepriem, Jasmin1, Author              
Tsouka, Alexandra1, Author              
Zhang, Junfang1, Author              
Mende, Marco1, Author              
Mattes, Daniela, Author
Mager, Dario, Author
Riegler, Hans2, Author              
Eickelmann, Stephan1, Author              
Löffler, Felix F.1, Author              
Affiliations:
1Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2385692              
2Hans Riegler, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863502              

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Free keywords: high-speed imaging, experimental and numerical prediction, OpenFOAM, fluorescence imaging, vertical scanning interferometry
 Abstract: In this work, we present a qualitative and quantitative experimental analysis, as well as a numerical model, of a novel variant of the laser-induced forward transfer, which uses millisecond laser pulses. In this process, soft material nanolayer spots are transferred from a donor slide, which is coated with the soft material layer, to an acceptor slide via laser irradiation. This method offers a highly flexible material transfer to perform high-throughput combinatorial chemistry for the generation of biomolecule arrays. For the first time, we show visual evidence that the main transfer mechanism is contact-based, due to thermal surface expansion of the donor layer. Thus, the process is different from the many known variants of laser-induced forward transfer. We will characterize the maximum axial surface expansion in relation to laser power and pulse duration. On this basis, we derive a numerical model that approximates the axial surface expansion within measurement tolerances. Finally, we analyze the topology of the transferred soft material nanolayer spots by fluorescence imaging and vertical scanning interferometry to determine width, height, and shape of the transferred material. Concluding from this experimental and numerical data, we can now predict the amount of transferred material in this process.

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Language(s): eng - English
 Dates: 2019-12-242020
 Publication Status: Published in print
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 Identifiers: DOI: 10.1016/j.apsusc.2019.144973
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Title: Applied Surface Science
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 508 Sequence Number: 144973 Start / End Page: - Identifier: ISSN: 0169-4332