Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Anhydrous octyl-glucoside phase transition from lamellar to isotropic induced by electric and magnetic fields

Hashim, R., Sugimura, A., Nguan, H.-S., Rahman, M., & Zimmermann, H. (2017). Anhydrous octyl-glucoside phase transition from lamellar to isotropic induced by electric and magnetic fields. The Journal of Chemical Physics, 146(8): 084702, pp. 1-8. doi:10.1063/1.4976979.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
JChemPhys_146_2017_084702.pdf (beliebiger Volltext), 3MB
 
Datei-Permalink:
-
Name:
JChemPhys_146_2017_084702.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Eingeschränkt (Max Planck Institute for Medical Research, MHMF; )
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:
ausblenden:
externe Referenz:
http://aip.scitation.org/doi/pdf/10.1063/1.4976979 (beliebiger Volltext)
Beschreibung:
-
OA-Status:
externe Referenz:
http://dx.doi.org/10.1063/1.4976979 (beliebiger Volltext)
Beschreibung:
-
OA-Status:

Urheber

einblenden:
ausblenden:
 Urheber:
Hashim, Rauzah, Autor
Sugimura, Akihiko, Autor
Nguan, Hock-Seng, Autor
Rahman, Matiur, Autor
Zimmermann, Herbert1, 2, Autor           
Affiliations:
1Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society, Jahnstrasse 29, 69120 Heidelberg, DE, ou_1497712              
2Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: A static deuterium nuclear magnetic resonance (2HNMR) technique (magnetic field, B = 7.05 T) was employed to monitor the thermotropic lamellar phase of the anhydrous 1:1 mixture sample of octyl-b-D-glucoside (βOG) and that of partially deuterium labelled at the alpha position on the chain, i.e.,βOG-d2 In the absence of an electric field, the 2H NMR spectrum of the mixture gives a typical quadrupolar doublet representing the aligned lamellar phase. Upon heating to beyond the clearing temperature at 112 °C, this splitting converts to a single line expected for an isotropic phase. Simultaneous application of magnetic and electric fields (E = 0.4 MV/m) at 85 °C in the lamellar phase, whose direction was set to be parallel or perpendicular to the magnetic field, resulted in the change of the doublet into a single line and this recovers to the initial doublet with time for both experimental geometries. This implies E- and B-field-induced phase transitions from the lamellar to an isotropic phase and a recovery to the lamellar phase again with time. Moreover, these phase transformations are accompanied by a transient current. A similar observation was made in a computational study when an electric field was applied to a water cluster system. Increasing the field strength distorts the water cluster and weakens its hydrogen bonds leading to a structural breakdown beyond a threshold field-strength. Therefore, we suggest the observed field-induced transition is likely due to a structure change of the βOG lamellar assembly caused by the field effect and not due to Joule heating.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2016-10-112017-02-072017-02-27
 Publikationsstatus: Online veröffentlicht
 Seiten: 8
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: The Journal of Chemical Physics
  Andere : J. Chem. Phys.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Woodbury, N.Y. : American Institute of Physics
Seiten: - Band / Heft: 146 (8) Artikelnummer: 084702 Start- / Endseite: 1 - 8 Identifikator: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226