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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
and Huber, Heinz P.
(2021)
Extending Single Cell Bioprinting from Femtosecond to Picosecond Laser Pulse Durations.
Micromachines 12 (10), p. 1172.
Date of publication of this fulltext: 15 Feb 2023 09:30
Article
DOI to cite this document: 10.5283/epub.53753
Abstract
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
| Item type | Article | ||||
| Journal or Publication Title | Micromachines | ||||
| Publisher: | MDPI | ||||
|---|---|---|---|---|---|
| Place of Publication: | BASEL | ||||
| Volume: | 12 | ||||
| Number of Issue or Book Chapter: | 10 | ||||
| Page Range: | p. 1172 | ||||
| Date | 21 September 2021 | ||||
| Institutions | Medicine > Lehrstuhl für Unfallchirurgie | ||||
| Identification Number |
| ||||
| Keywords | INDUCED 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 Decimal Classification | 600 Technology > 610 Medical sciences Medicine | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-537536 | ||||
| Item ID | 53753 |
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