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2010 | 8 | 4 | 806-819
Tytuł artykułu

Capillary electrophoretic separation and characterizations of CdSe quantum dots

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
We have developed a capillary electrophoresis method to characterize the QD surface ligand interactions with various surfactant systems. The method was demonstrated with 2–5 nm CdSe nanoparticles surface-passivated with trioctylphosphine oxide (TOPO). Water solubility was accomplished by surfactant-assisted phase transfer via an oil-in-water microemulsion using either cationic, anionic, or non-ionic surfactants. Interaction between the QD surface ligand (TOPO) and the alkyl chain of the surfactant molecule produces a complex and dynamic surface coating that can be characterized through manipulation of CE separation buffer composition and capillary surface modification. Additional characterization of the QD surface ligand interactions with surfactants was accomplished by UV-VIS spectroscopy, photoluminescence, and TEM. It is anticipated that studies such as these will elucidate the dynamics of QD surface ligand modifications for use in sensors. [...]
Wydawca

Czasopismo
Rocznik
Tom
8
Numer
4
Strony
806-819
Opis fizyczny
Daty
wydano
2010-08-01
online
2010-06-17
Twórcy
  • Faculty of Chemistry, Department of Analytical Chemistry, Warsaw University of Technology, 00-664, Warsaw, Poland, slaosw@ch.pw.edu.pl
  • Faculty of Chemistry, Department of Analytical Chemistry, Warsaw University of Technology, 00-664, Warsaw, Poland
  • Department of Chemistry and Biochemistry, The University of Tulsa, Tulsa, OK, 74104, USA
  • Department of Chemistry and Biochemistry, The University of Tulsa, Tulsa, OK, 74104, USA
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-010-0052-9
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