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Proceedings Paper

Two-photon imaging and nanoprocessing of stem cells with sub-20 fs laser pulses
Author(s): A. Uchugonova; A. Isemann; R. Bückle; W. Watanabe; K. König
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Paper Abstract

Novel ultracompact multiphoton sub-20 femtosecond near infrared MHz laser scanning microscopes and conventional 250 fs laser microscopes have been used to perform high resolution multi-photon imaging of stem cell clusters as well as targeted intracellular nanoprocessing and knock-out of living single stem cells within a 3D microenvironment. Also lethal exposure of large parts of cell clusters was successfully probed while maintaining single cells of interest alive. Mean powers in the milliwatt range for 3D nanoprocessing and microwatt powers for two-photon imaging were found to be sufficient. Ultracompact low power sub-20 fs laser systems may become interesting tools for nanobiotechnology such as optical cleaning of stem cell clusters and optical transfection.

Paper Details

Date Published: 13 February 2009
PDF: 6 pages
Proc. SPIE 7183, Multiphoton Microscopy in the Biomedical Sciences IX, 71831A (13 February 2009); doi: 10.1117/12.812950
Show Author Affiliations
A. Uchugonova, Fraunhofer-Institut für Biomedizinische Technik (Germany)
Saarland Univ. (Germany)
A. Isemann, Femtolasers Produktions GmbH (Austria)
R. Bückle, JenLab GmbH (Germany)
W. Watanabe, National Institute of Advanced Industrial Science and Technology (Japan)
K. König, Saarland Univ. (Germany)
JenLab GmbH (Germany)


Published in SPIE Proceedings Vol. 7183:
Multiphoton Microscopy in the Biomedical Sciences IX
Ammasi Periasamy; Peter T. C. So, Editor(s)

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