Cholic acid behavior in water and organic solvent: study of normal and inverted aggregates

Exploration of Interactions between Pyridoxine HCl (Vitamin B6) and {Hexadecyltrimethylammonium Bromide + Sodium Cholate (Trihydroxy Bile Salt)} Mixtures at T = (298.15 to 318.15) K: Physicochemical and Spectroscopic Approach

“…The intersecting point in every plot signifies the critical micelle concentration ( CMC ) value of the studied mixed surfactant. The CMC values for HTAB and NaC in water at different temperatures show very good agreement with the reported − CMC values in the literature (Table ). The CMC values of NaC at α HTAB = (0.02 and 0.04) increase with an increase in the concentration of pyridoxine HCl (aq) solution at constant temperature.…”

“…The baseline corrections were made for all the recorded absorption spectra. The absorption spectra have been recorded by 22 12.9 23 15.0 24 13.8 25…”

Absorption-Enhancing Effects of Bile Salts

“…Bile salts are synthesized from cholesterol in the liver [1]. Processes of bile acids biosynthesis from cholesterol are shown in Scheme 1.…”

“…Bile salts are amphipathic steroidal bio-surfactants that are derived from cholesterol in the liver [1,2,3]. The synthesis of bile salts is the major route for elimination of cholesterol from the body [4].…”

Synthesis and Characterization of a New Cationic Surfactant Derived from 5-Chloro-1H-indole-2,3-dione In Aqueous Systems

“…It is well known that surfactant molecules are associated with micelles which begin to form above the critical micellar concentration (CMC) [19][20][21][22]. Numerous factors such as the addition of electrolytes [23][24][25], the pH of the buffer [26], the temperature [27,28], the addition of organic modifiers [29,30] Ionic strength of the aqueous solution [31,32], the presence of additives etc., make this value different from that determined in pure water.The determination of the CMC takes place in several ways such as the tensiometry which records the decrease in the surface tension as a function of the surfactant concentrations up to a limit beyond which the surface tension no longer decreases, and other methods used as conductivity [33][34] for charged surfactants, spectrofluorometry, nuclear magnetic resonance and UV-visible absorption spectroscopy [35][36][37].In the present work, we describe the synthesis of a new surfactant monomer derived from 5-Chloroisatin via the N-alkylation method under the conditions of phase transfer catalysis followed by the quaternizationof 1-(6-bromohexyl) 5 …”