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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 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 typeArticle
Journal or Publication TitleMicromachines
Publisher:MDPI
Place of Publication:BASEL
Volume:12
Number of Issue or Book Chapter:10
Page Range:p. 1172
Date21 September 2021
InstitutionsMedicine > Lehrstuhl für Unfallchirurgie
Identification Number
ValueType
10.3390/mi12101172DOI
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 Decimal Classification600 Technology > 610 Medical sciences Medicine
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-537536
Item ID53753

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