Direkt zum Inhalt

Zhang, Jun ; Geiger, Yasemin ; Sotier, Florian ; Djordjevic, Sasa ; Docheva, Denitsa ; Sudhop, Stefanie ; Clausen-Schaumann, Hauke ; Huber, Heinz P.

Extending Single Cell Bioprinting from Femtosecond to Picosecond Laser Pulse Durations

Zhang, Jun, Geiger, Yasemin, Sotier, Florian, Djordjevic, Sasa, Docheva, Denitsa , Sudhop, Stefanie , Clausen-Schaumann, Hauke und Huber, Heinz P. (2021) Extending Single Cell Bioprinting from Femtosecond to Picosecond Laser Pulse Durations. Micromachines 12 (10), S. 1172.

Veröffentlichungsdatum dieses Volltextes: 15 Feb 2023 09:30
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.53753


Zusammenfassung

Femtosecond laser pulses have been successfully used for film-free single-cell bioprinting, enabling precise and efficient selection and positioning of individual mammalian cells from a complex cell mixture (based on morphology or fluorescence) onto a 2D target substrate or a 3D pre-processed scaffold. In order to evaluate the effects of higher pulse durations on the bioprinting process, we ...

Femtosecond laser pulses have been successfully used for film-free single-cell bioprinting, enabling precise and efficient selection and positioning of individual mammalian cells from a complex cell mixture (based on morphology or fluorescence) onto a 2D target substrate or a 3D pre-processed scaffold. In order to evaluate the effects of higher pulse durations on the bioprinting process, we investigated cavitation bubble and jet dynamics in the femto- and picosecond regime. By increasing the laser pulse duration from 600 fs to 14.1 ps, less energy is deposited in the hydrogel for the cavitation bubble expansion, resulting in less kinetic energy for the jet propagation with a slower jet velocity. Under appropriate conditions, single cells can be reliably transferred with a cell survival rate after transfer above 95% through the entire pulse duration range. More cost efficient and compact laser sources with pulse durations in the picosecond range could be used for film-free bioprinting and single-cell transfer.</p>



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftMicromachines
Verlag:MDPI
Ort der Veröffentlichung:BASEL
Band:12
Nummer des Zeitschriftenheftes oder des Kapitels:10
Seitenbereich:S. 1172
Datum21 September 2021
InstitutionenMedizin > Lehrstuhl für Unfallchirurgie
Identifikationsnummer
WertTyp
10.3390/mi12101172DOI
Stichwörter / KeywordsINDUCED BREAKDOWN THRESHOLDS; FILM-FREE LASER; CAVITATION BUBBLES; 1ST-ORDER MODEL; AQUEOUS-MEDIA; WATER; COMPUTATION; NANOSECOND; MECHANISMS; LIQUIDS; laser-induced forward transfer (LIFT); film-free LIFT; single-cell bioprinting; tissue engineering; femtosecond laser-based bioprinting; picosecond laser-based bioprinting
Dewey-Dezimal-Klassifikation600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-537536
Dokumenten-ID53753

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