ESR study of micellization process of N,N,N-trimethylglycinetetradecyl ester chloride

• Autorzy: Podolak M. , Man D. , Przestalski S.
• Języki publikacji: EN

Abstrakty

EN

Formation of micelles of the fourteen-carbon amphiphilic ammonium salt (N,N,N - trimethylglycinetetradecyl ester chloride - AS V-14), was studied using the ESR spin probe method. The probe used was 2-hexyl-2-[11-methoxy-11-oxoundecyl]-4,4-dimethyl-3oxazolidinyloxy [Met (5,10)]. The micelles formation process was signalized by changes in ESR spectra of a probe. The probe spectrum in aqueous environment has the shape of one broad line, whereas three narrow lines are observed in a hydrophobic environment. The study showed that the critical micellar concentration (CMC) of the AS V-14 compound amounts to about 1.7 mM. This agrees approximately with the value obtained from calorimetric measurements (1.9 ± 0.1 mM). After addition of oleic acid into the solution (by intensive shaking) it was found that AS V-14 micelles start to form at concentration of about 0.07 mM. The reduction in the CMC value may be caused by formation of mixed micelles, containing AS V-14 and fatty acid.

Słowa kluczowe

EN

micelle; hydrophobic environment; critical micellar concentration; calorimetric measurement; amphiphilic ammonium salt; fatty acid; N,N,N-trimethylglycinetetradecyl ester chloride; oleic acid

• Wydawca: -
• Czasopismo: Cellular and Molecular Biology Letters
• Rocznik: 1997
• Tom: 02
• Numer: 1
• Opis fizyczny: p.53-58,fig.

Twórcy

autor

Podolak M.

• Opole University, Opole, Poland

autor

Man D.

autor

Przestalski S.

Bibliografia

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