elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Real-time visualization and recording of laser-induced liquid micro-jet disintegration

Stasicki, Boleslaw (2010) Real-time visualization and recording of laser-induced liquid micro-jet disintegration. II Krajowa Konferencja Nano i Mikromechaniki, 06.-08. Lipca 2010, Krasiczyn, Poland. ISBN 978-83-7199-611-5.

Dieses Archiv kann nicht den gesamten Text zur Verfügung stellen.

Kurzfassung

A powerful technique to study biomolecules and their complexation is pulsed IR-laser induced, liquid beam desorption mass spectrometry. The goal is to transfer biomolecules from their natural envi-ronment softly into the gas phase and analyze (weigh) them with high resolution time-of-flight mass spectrometry. Unfortunately, the evaporation of ionic aggregates of biomolecules from water solution is very difficult due to the large solvation energy and, in general, hot water destroys the biomolecules. Nevertheless, if the process is fast enough charged biomolecules can be desorbed without fragmentation and detected. This can be accomplished by using IR-laser pulses for very rapid heating of a liquid jet containing the biomolecules which causes its disintegration (explosion). However, due to the small liquid jet diameter of 12-15 μm, its high speed of 50-100 m/s, short IR-laser pulses of 8-10 ns and total event duration of a few microseconds only, the microscopic visualization of the jet disintegration was a challenging task. Using a high-speed stroboscopic system running in the back illumination mode high quality video sequences could be recorded. A slow-motion effect has been achieved by sweep of time delay between the pulses of the desorption laser, the light pulse and the camera shutter opening.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Real-time visualization and recording of laser-induced liquid micro-jet disintegration
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Stasicki, BoleslawNICHT SPEZIFIZIERT
Datum:2010
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 37-38
Name der Reihe:Book of Astracts
ISBN:978-83-7199-611-5
Status:veröffentlicht
Stichwörter:ultra high-speed camera, laser-induced liquid micro-jet,
Veranstaltungstitel:II Krajowa Konferencja Nano i Mikromechaniki
Veranstaltungsort:Krasiczyn, Poland
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:06.-08. Lipca 2010
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugphysik
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren
Hinterlegt von: Ilka Micknaus
Hinterlegt am:24 Aug 2010 10:05
Letzte Änderung:24 Aug 2010 10:05

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.