Acoustically Levitated Droplets - A Contactless Sampling Method for Fluorescence Studies
- Acoustic levitation is used as a newtool to study concentration-dependent processes influorescence spectroscopy. With this technique, small amounts of liquid and solid samples can be measured without the need for sample supports or containers, which often limits signal acquisition and can even alter sample properties due to interactions with the support material. We demonstrate that, because of the small sample volume, fluorescence measurements at high concentrations of an organic dye are possible without the limitation of inner-filter effects, which hamper such experiments in conventional, cuvette-based measurements. Furthermore, we show that acoustic levitation of liquid samples provides an experimentally simple way to study distance-dependent fluorescence modulations in semiconductor nanocrystals. The evaporation of the solvent during levitation leads to a continuous increase of solute concentration and can easily be monitored by laser-induced fluorescence.
Autor*innen: | Jork Leiterer, Markus Grabolle, Knut RurackORCiD, Ute Resch-GengerORCiD, J. Ziegler, T. Nann, Ulrich PanneORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Annals of the New York academy of sciences |
Jahr der Erstveröffentlichung: | 2008 |
Verlag: | New York Academy of Sciences |
Verlagsort: | New York, NY |
Jahrgang/Band: | 1130 |
Erste Seite: | 78 |
Letzte Seite: | 84 |
Freie Schlagwörter: | Acoustic levitation; Dyes; Energy transfer; Fluorescence; Nanocrystals; Quantum dots; Ultrasonic trap |
DOI: | 10.1196/annals.1430.039 |
ISSN: | 0077-8923 |
ISSN: | 1749-6632 |
ISSN: | 0094-8500 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 26.06.2008 |