Dansyl Derivatives of Cholic Acid as Tools to Build Speciation Diagrams for Sodium Cholate Aggregation

2011 ◽  
Vol 2 (7) ◽  
pp. 782-785 ◽  
Author(s):  
Miguel Gomez-Mendoza ◽  
M. Luisa Marin ◽  
Miguel A. Miranda
Keyword(s):  
Cholic Acid ◽  
Sodium Cholate ◽  
Speciation Diagrams ◽  
Dansyl Derivatives ◽  
Derivatives Of

scholarly journals N-Alkylacrylamide copolymers with (meth)acrylamide derivatives of cholic acid: Solution properties and aggregation

e-Polymers ◽  
2004 ◽  
Vol 4 (1) ◽  
Author(s):  
Damien Avoce ◽  
Wilms E. Baille ◽  
X. X. Zhu
Keyword(s):  
Nmr Spectroscopy ◽  
Sodium Dodecyl Sulfate ◽  
Cholic Acid ◽  
Sodium Dodecyl ◽  
Critical Micellar Concentration ◽  
Sodium Cholate ◽  
Solution Properties ◽  
Aggregation Process ◽  
Thermosensitive Copolymers ◽  
Derivatives Of

Abstract Solution properties of a series of thermosensitive copolymers based on acrylamide and methacrylamide derivatives of cholic acid and N-alkylacrylamides such as N,N-diethylacrylamide, N-ethylacrylamide, and N-isopropylacrylamide have been studied by various techniques including fluorescence and turbidimetry. These copolymers contained 1 - 5 mol-% of the (meth)acrylamide derivatives of cholic acid as determined by NMR spectroscopy. A two-stage aggregation process was observed for the copolymers of N-isopropylacrylamide when the number of cholic acid residues was sufficiently high. The presence of the copolymers lowered the critical micellar concentration of sodium dodecyl sulfate but had little effect on the micellization of sodium cholate. The critical micellar concentration of these copolymers decreased with increasing content of cholic acid residues in the polymers.

High-speed analysis of dansyl derivatives of polyamines

1984 ◽  
Vol 18 (9) ◽  
pp. 525-527 ◽  
Author(s):  
J. Bontemps ◽  
A. Etienne ◽  
M. Kadri ◽  
J. -L. van Cutsem ◽  
G. Dandrifosse ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Analysis ◽  
Dansyl Derivatives ◽  
Derivatives Of

Investigation of new acyloxy derivatives of cholic acid and their esters as drug absorption modifiers

Steroids ◽  
2011 ◽  
Vol 76 (10-11) ◽  
pp. 1082-1097 ◽  
Author(s):  
Lech Mrózek ◽  
Lenka Dvořáková ◽  
Zuzana Mandelová ◽  
Lucie Rárová ◽  
Anna Řezáčová ◽  
...  
Keyword(s):  
Cholic Acid ◽  
Drug Absorption ◽  
Derivatives Of

Use of Dansyl Derivatives and Mass Spectrometry for Identification of Biogenic Amines

1968 ◽  
Vol 14 (4) ◽  
pp. 302-309 ◽  
Author(s):  
C R Creveling ◽  
K Kondo ◽  
J W Daly
Keyword(s):  
Mass Spectrometry ◽  
Amino Acids ◽  
Biogenic Amines ◽  
Primary Amines ◽  
Mass Determination ◽  
Chromatographic System ◽  
Mammalian Heart ◽  
Heart Mass ◽  
Dansyl Derivatives ◽  
Derivatives Of

Abstract A useful technic for the isolation, separation, and identification of biogenic amines as fluores ent dansyl derivatives is described. A thin-layer chromatographic system is presented for the separation of the dansyl derivatives of phenethylamines from their corresponding β-hydroxyl derivatives, of primary amines from their corresponding N-alkylated derivatives, and of the components present in an extract of mammalian heart. Mass spectrums of dansyl derivatives of various amines and amino acids are presented to illustrate parent ion mass determination. This technic was applied to the identification of various amines present in mammalian heart. Identification was based on cochromatography and identity of parent ion mass with authentic compounds. Piperidine, dimethylamine, phenethylamine, methylamine, phenethanolamine, putrescine, spermidine, spermine, and tyramine were identified.

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