Formation of mixed micelles and vesicles of human apolipoproteins A-I and A-II with synthetic and natural lecithins and the bile salt sodium taurocholate: quasi-elastic light scattering studies

Biochemistry ◽  
1987 ◽  
Vol 26 (25) ◽  
pp. 8125-8133 ◽  
Author(s):  
Joanne M. Donovan ◽  
George B. Benedek ◽  
Martin C. Carey
Keyword(s):  
Light Scattering ◽  
Bile Salt ◽  
Mixed Micelles ◽  
Sodium Taurocholate ◽  
Elastic Light Scattering

How does bile salt penetration affect the self-assembled architecture of pluronic P123 micelles? – light scattering and spectroscopic investigations

2015 ◽  
Vol 17 (30) ◽  
pp. 19977-19990 ◽  
Author(s):  
Arpita Roy ◽  
Niloy Kundu ◽  
Debasis Banik ◽  
Jagannath Kuchlyan ◽  
Nilmoni Sarkar
Keyword(s):  
Light Scattering ◽  
Bile Salt ◽  
Bile Salts ◽  
Triblock Copolymer ◽  
Sodium Taurocholate ◽  
Sodium Deoxycholate ◽  
The Self ◽  
Spectroscopic Investigations ◽  
Pluronic P123 ◽  
Supramolecular Aggregate

The triblock copolymer of the type (PEO)20–(PPO)70–(PEO)20 (P123) forms a mixed supramolecular aggregate with different bile salts, sodium deoxycholate (NaDC) and sodium taurocholate (NaTC), having different hydrophobicity.

Behaviors of Sodium Taurocholate and Sodium Taurodeoxycholate in Binary Mixed Micelles of Bile Salt and Nonionic Surfactant

Langmuir ◽  
1996 ◽  
Vol 12 (23) ◽  
pp. 5536-5540 ◽  
Author(s):  
K. Suzuki ◽  
T. Hasegawa ◽  
Y. Takamura ◽  
K. Takahashi ◽  
H. Asano ◽  
...  
Keyword(s):  
Bile Salt ◽  
Nonionic Surfactant ◽  
Mixed Micelles ◽  
Sodium Taurocholate ◽  
Sodium Taurodeoxycholate

Quasielastic light scattering evidence for vesicular secretion of biliary lipids

1989 ◽  
Vol 257 (1) ◽  
pp. G1-G8 ◽  
Author(s):  
D. E. Cohen ◽  
M. Angelico ◽  
M. C. Carey
Keyword(s):  
Electron Microscopy ◽  
Light Scattering ◽  
Bile Salt ◽  
Salt Concentration ◽  
Mixed Micelles ◽  
Unilamellar Vesicles ◽  
Bile Formation ◽  
Biliary Lipids ◽  
Bile Salt Concentration ◽  
Quasielastic Light Scattering

We employed quasielastic light scattering, negative-stain, and freeze-fracture electron microscopy to study the time-dependent physicochemical behavior of biliary lipids in fresh rat bile. Three to five minutes after bile collection, the earliest light scattering measurements and electron microscopy revealed unilamellar vesicles (mean hydrodynamic radius, Rh = 430-740 A) coexisting with mixed micelles (Rh = 20-120 A) in all biles. Both percent biliary vesicles (1 to greater than 70%) and micellar sizes varied inversely with bile salt concentration (range 1.6-72 mM) both during endogenous pool drainage and sodium taurocholate infusion. With bile salt concentrations in the vicinity of or below the estimated critical micellar concentration, biliary vesicle concentrations remained constant or increased slightly with passage of time. However, with micellar bile salt concentrations, complete conversion of vesicles to micelles occurred at rates that were directly proportional to bile salt concentration. Back-extrapolation of weighted Rh averages of micelles plus vesicles as functions of time gave sizes of approximately 470 A at 1 min, suggesting the predominance of homogeneously sized unilamellar vesicles at the earliest stages of bile formation. After micellization of lipids, mixed protein aggregates of vesicle size were demonstrated in all biles. These experiments elucidate the dynamic coexistence of lipid vesicles and mixed micelles in cholesterol unsaturated biles and demonstrate that vesicle-to-micelle interconversions of biliary lipid aggregates are normal physiological phenomena within the biliary tree.(ABSTRACT TRUNCATED AT 250 WORDS)

Investigation of the enhanced ability of bile salt surfactants to solubilize phospholipid bilayers and forming mixed micelles

Soft Matter ◽  
2021 ◽  
Author(s):  
Vahid Forooqi Motlaq ◽  
Mattia Ortega Holmberg ◽  
Katarina Edwards ◽  
Lars Gedda ◽  
Jeppe Lyngsoe ◽  
...  
Keyword(s):  
Light Scattering ◽  
Bile Salt ◽  
Self Assembly ◽  
Mixed Micelles ◽  
Saline Solution ◽  
Physiological Saline ◽  
Sodium Deoxycholate ◽  
Phospholipid Bilayers ◽  
The Self ◽  
Physiological Saline Solution

The self-assembly in mixtures of the anionic bile salt surfactant sodium deoxycholate (NaDC) and the zwitterion-ic phospholipid 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) in physiological saline solution has been investigated using light scattering, small-angle...

QUASI-ELASTIC LIGHT SCATTERING STUDIES OF THE KINETICS OF LYSOZYME DIMERIZATION

1972 ◽  
Vol 33 (C1) ◽  
pp. C1-169-C1-169
Author(s):  
Y. YEY ◽  
T. M. SCHUSTER ◽  
D. A. YPHANTIS
Keyword(s):  
Light Scattering ◽  
Elastic Light Scattering ◽  
Kinetics Of

The light-scattering Mueller matrices for Rayleigh and Rayleigh-Gans-Debye approximation

1990 ◽  
Vol 55 (12) ◽  
pp. 2889-2897
Author(s):  
Jaroslav Holoubek
Keyword(s):  
Light Scattering ◽  
Theoretical Work ◽  
Matrix Elements ◽  
Elastic Light Scattering ◽  
Yield Information ◽  
Recent Theoretical Work ◽  
Particle Parameters ◽  
Complete Set ◽  
Single Matrix ◽  
Scattering Matrix Elements

Recent theoretical work has shown that the complete set of polarized elastic light-scattering studies should yield information about scatterer structure that has so far hardly been utilized. We present here calculations of angular dependences of light-scattering matrix elements for spheres near the Rayleigh and Rayleigh-Gans-Debye limits. The significance of single matrix elements is documented on examples that show how different matrix elements respond to changes in particle parameters. It appears that in the small-particle limit (Rg/λ < 0.1) we do not loose much information by ignoring "large particle" observables.

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