PMID- 25001412
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150520
LR  - 20140729
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 30
IP  - 29
DP  - 2014 Jul 29
TI  - Formation and dissociation of the acridine orange dimer as a tool for studying 
      polyelectrolyte-surfactant interactions.
PG  - 8726-34
LID - 10.1021/la502011s [doi]
AB  - Steady-state and time-resolved fluorescence and UV-vis techniques were used to 
      study the formation and dissociation of acridine orange dimer in order to 
      investigate hyaluronan-acridine orange, hyaluronan-CTAB (cetyltrimethylammonium 
      bromide), polystyrenesulfonate-acridine orange, and polystyrenesulfonate-CTAB 
      interactions in aqueous solution. Steady-state and time-resolved fluorescence and 
      the dimer:monomer absorbance ratio of acridine orange (AO) were used to determine 
      dimer formation on polymer chains of polyelectrolytes. Acridine orange clearly 
      formed dimers on polystyrensulfonate chains as well as on hyaluronan, but we show 
      that the electrostatic interaction is much weaker in the case of hyaluronan. 
      After the addition of surfactant, we observed an enhancement of fluorescence 
      intensity, indicating the dissociation of AO dimers into monomers and the 
      replacement of acridine orange on polymer chains by surfactant molecules. 
      Importantly, we show that surfactant molecules bind to polymer chains before the 
      critical micelle concentration is reached and form the so-called "bottle-brush" 
      structure.
FAU - Mondek, Jakub
AU  - Mondek J
AD  - Brno University of Technology, Faculty of Chemistry, Institute of Physical and 
      Applied Chemistry and Materials Research Centre , Purkynova 464/118, 612 00 Brno, 
      Czech Republic.
FAU - Mravec, Filip
AU  - Mravec F
FAU - Halasova, Tereza
AU  - Halasova T
FAU - Hnyluchova, Zuzana
AU  - Hnyluchova Z
FAU - Pekar, Miloslav
AU  - Pekar M
LA  - eng
PT  - Journal Article
DEP - 20140715
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2014/07/09 06:00
MHDA- 2014/07/09 06:01
CRDT- 2014/07/09 06:00
PHST- 2014/07/09 06:00 [entrez]
PHST- 2014/07/09 06:00 [pubmed]
PHST- 2014/07/09 06:01 [medline]
AID - 10.1021/la502011s [doi]
PST - ppublish
SO  - Langmuir. 2014 Jul 29;30(29):8726-34. doi: 10.1021/la502011s. Epub 2014 Jul 15.