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  Mass Spectrometric Lipid Profiles of Picosecond Infrared Laser‐Generated Tissue Aerosols Discriminate Different Brain Tissues

Wurlitzer, M., Hessling, E., Rinas, K., Fuh, M., Petersen, H., Ricklefs, F., et al. (2020). Mass Spectrometric Lipid Profiles of Picosecond Infrared Laser‐Generated Tissue Aerosols Discriminate Different Brain Tissues. Lasers in Surgery and Medicine, 52(3), 228-234. doi:10.1002/lsm.23096.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-0BF0-F Version Permalink: http://hdl.handle.net/21.11116/0000-0006-6FC4-1
Genre: Journal Article

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lsm.23096.pdf (Publisher version), 502KB
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2019
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https://dx.doi.org/10.1002/lsm.23096 (Publisher version)
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 Creators:
Wurlitzer, M.1, Author
Hessling, E.1, Author
Rinas, K.1, Author
Fuh, MM.1, Author
Petersen, H.2, Author
Ricklefs, F.3, Author
Lamszus, K.3, Author
Regelsberger, J.3, Author
Maier, S.4, Author              
Kruber, S.4, Author              
Hansen, N.-O.4, Author              
Miller, R. J. D.4, 5, Author              
Schlüter, H.1, Author
Affiliations:
1Department of Mass Spectrometric Proteomics, Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg‐Eppendorf, ou_persistent22              
2Department of Otorhinolaryngology, Head and Neck Surgery and Oncology, University Medical Center Hamburg‐Eppendorf, ou_persistent22              
3Department of Neurosurgery, University Medical Center Hamburg‐Eppendorf, ou_persistent22              
4Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
5Departments of Chemistry and Physics, Lash Miller Chemical Laboratories, University of Toronto, ou_persistent22              

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 Abstract: Background and Objectives A picosecond infrared laser (PIRL) has recently been demonstrated to cut biological tissue without scar formation based on the minimal destructive action on the surrounding cells. During cutting with PIRL, the irradiated tissue is ablated by a cold vaporization process termed desorption by impulsive vibrational excitation. In the resulting aerosol, all molecules are dissolved in small droplets and even labile biomolecules like proteins remain intact after ablation. It is hypothesized that these properties enable the PIRL in combination with mass spectrometry as an intelligent laser scalpel for guided surgery. In this study, it was tested if PIRL‐generated tissue aerosols are applicable for direct analysis with mass spectrometry, and if the acquired mass spectra can be used to discriminate different brain areas. Materials and Methods Brain tissues were irradiated with PIRL. The aerosols were collected and directly infused into a mass spectrometer via electrospray ionization without any sample preparation or lipid extraction. Results The laser produced clear cuts with no marks of burning. Lipids from five different classes were identified in the mass spectra of all samples. By principal component analysis the different brain areas were clearly distinguishable from each other. Conclusions The results demonstrate the potential for real‐time analysis of lipids with a PIRL‐based laser scalpel, coupled to a mass spectrometer, for the discrimination of tissues during surgeries.

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Language(s): eng - English
 Dates: 2019-04-142019-05-082020-03
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/lsm.23096
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Title: Lasers in Surgery and Medicine
  Abbreviation : Lasers Surg Med
Source Genre: Journal
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Publ. Info: Hoboken, NJ, USA : John Wiley & Sons
Pages: - Volume / Issue: 52 (3) Sequence Number: - Start / End Page: 228 - 234 Identifier: ISSN: 1096-9101
CoNE: https://pure.mpg.de/cone/journals/resource/1096-9101