Bile salts form lyotropic liquid crystals

A reinvestigation of the phase diagrams relative to some conjugated and non-conjugated bile salts in water has demonstrated the formation of lyotropic liquid crystalline phases, in contradiction with generally accepted statements. The phase behaviour is complex and the phase diagrams are unusual, compared to most surfactants and lipids. In particular, coexistence of liquid crystalline phases with crystals has been obser ed. The formation of liquid crystalline phases requires very long equilibration times and the thermal stability of the lyotropic phases is moderate. The observed structure is tentatively assumed to be of the reverse hexagonal type. Structural relations with currently accepted models for the organisation of bile salts into micelles and solid form have been found. (C) 2002 Elsevier Science B.V. All rights reserved.

Edlund, HåkanMittuniversitetet,Institutionen för naturvetenskap (-2008)(Swepub:miun)hakedl (author)
Khan, A (author)
Marques, EduardoLund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fkem-ema (author)
La Mesa, C (author)
MittuniversitetetInstitutionen för naturvetenskap (-2008) (creator_code:org_t)

In:Colloids and Surfaces A: Physicochemical and Engineering Aspects213:1, s. 79-920927-77571873-4359

By the author/editor: Amenitsch, H; Edlund, Håkan; Khan, A; Marques, Eduardo; La Mesa, C

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NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Physical Chemist ...

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