Volumetric, compressibility and viscometric studies on sodium cholate/sodium deoxycholate–amino acid interactions in aqueous medium

Kumar, Kuldeep; Chauhan, Suvarcha

doi:10.1016/j.tca.2015.02.014

Cited by 35 publications

(33 citation statements)

References 62 publications

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“…Table 1 presents the density of water and aqueous alcohol solutions of various mass fractions of alcohol in the temperature range from 298.15 to 313.15 K. The density values are in close agreement as reported in the literature. 24,25,29 The variation of density as a function of the concentration of SLS is given in Tables 2−5, respectively, for water, methanol (aq), ethanol (aq), and 1-propanol (aq) and plotted as Supporting Information (Figures S1 to S4). As is evident, at constant temperature the density of the aqueous and aqueous alcohol solutions of SLS increases linearly with surfactant concentration.…”

Section: Resultsmentioning

confidence: 99%

Volumetric Properties of Sodium Lauroylsarcosinate in Aqueous Alcohol Solutions of Methanol, Ethanol, and 1-Propanol

et al. 2017

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The work attempts to gain an insight into the solution behavior of a biocompatible surfactant, sodium lauroylsarcosinate (SLS), in aqueous alcohol media at practically used concentrations of SLS (>CMC) where the solute−solute and solute−solvent interactions of surfactant aggregates are expected to be different from that between the solvent and the constituent monomers. The study of volumetric properties stresses the importance of hydrophilic and hydrophobic interactions operative between the SLS molecules and between SLS and the solvent. Moreover, it is interesting to observe how the dominance of electrostatic interactions fades and that of hydrophobic interactions rises as the concentration of SLS is progressively increased. Also, the study of standard apparent molar volumes, and the standard volumes of transfer offers a convenient way for accounting the differences between the alcohols which stems from their differing hydrophobicity.

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Section: Resultsmentioning

confidence: 99%

Volumetric Properties of Sodium Lauroylsarcosinate in Aqueous Alcohol Solutions of Methanol, Ethanol, and 1-Propanol

et al. 2017

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“…It was found that steric interaction between the bile salt and catanionic surfactant plays an important role in catanionic surfactant systems. In the bile salt–amino acid interaction, the dominance of electrostatic interactions at low bile salt concentrations was found, which shifted to the dominance of hydrophobic interactions at higher concentrations . Herein, the zwitterionic DDO bears both negative and positive charges, which is comparable to the vesicles formed from the catanionic surfactant in terms of charges bearing.…”

Section: Resultsmentioning

confidence: 84%

“…In the bile salt−amino acid interaction, the dominance of electrostatic interactions at low bile salt concentrations was found, which shifted to the dominance of hydrophobic interactions at higher concentrations. 9 Herein, the zwitterionic DDO bears both negative and positive charges, which is comparable to the vesicles formed from the catanionic surfactant in terms of charges bearing. The characteristics of the DDO structure are its hydrophilic head groups, which cap the ends of a saturated, C 12 linear hydrocarbon hydrophobe.…”

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 82%

“…Bile salts can themselves act as surfactants in the presence of biologically active molecules. Chauhan’s group has studied systematically the interaction of bile salts with amino acid and lecithin. − It was found that the aggregation of bile salt molecules has been favored in the presence of amino acids by virtue of their adsorption in bile salt micelles . The early changes induced in the interfacial network will influence the subsequent effects of enzymes, phospholipids, and bile salts on the biochemical reactions.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamics and Structural Evolution during a Reversible Vesicle–Micelle Transition of a Vitamin-Derived Bolaamphiphile Induced by Sodium Cholate

Tian

Shen

et al. 2016

J. Agric. Food Chem.

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Interaction of endogenous sodium cholate (SC) with dietary amphiphiles would induce structural evolution of the self-assembled aggregates, which inevitably affects the hydrolysis of fat in the gut. Current work mainly focused on the interaction of bile salts with classical double-layered phospholipid vesicles. In this paper, the thermodynamics and structural evolution during the interaction of SC with novel unilamellar vesicles formed from vitamin-derived zwitterionic bolaamphiphile (DDO) were characterized. It was revealed that an increased temperature and the presence of NaCl resulted in narrowed micelle-vesicle coexistence and enlarged the vesicle region. The coexistence of micelles and vesicles mainly came from the interaction of monomeric SC with DDO vesicles, whereas micellar SC contributed to the total solubilization of DDO vesicles. This research may enrich the thermodynamic mechanism behind the structure transition of the microaggregates formed by amphiphiles in the gut. It will also contribute to the design of food formulation and drug delivery system.

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“…In addition, its unique structure, chemical properties, and its high affinity to form protein-NaDC complexes have a crucial impact as bio-surfactant interactions in the determination of the proteins such as serum albumin, which has an important applications in biosciences, foods, cosmetics, and drug delivery [4]. Therefore, there are different methods for the determination and monitoring of bile acids or their protein complexes such as complex NMR spectroscopy [5], steady-state fluorescence, time-resolved fluorescence and fluorescence measurements [1], and volumetric and compressibility studies for bile salts in aqueous solutions [6,7] using viscosity, density, and speed of sound techniques at different temperatures [8]. These previously reported methods of sodium deoxycholate determination as a free compound or its complexes have clear disadvantages that can be shown in the preliminary steps before the detection and monitoring, including time consumption, hard work, and complicated theories of detection.…”

Section: Introductionmentioning

confidence: 99%

Modified Potentiometric Screen-Printed Electrodes Based on Imprinting Character for Sodium Deoxycholate Determination

et al. 2020

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Potentiometric sensors have a great influence on the determination of most various compounds in their matrices. Therefore, efficient and new sensors were introduced to measure sodium Deoxycholate (NaDC) as a bile acid salt. These sensors are based on NaDC imprinted polymer (MIP) as sensory element. The MIP beads were synthesized using thermal polymerization pathway, in which acrylamide (AAm), ethylene glycol dimethacrylate (EGDMA), NaDC, and benzoyl peroxide (BPO) were used as the functional monomer, cross-linker, template, and initiator, respectively. The proposed sensors were fabricated using a coated screen-printed platform and the sensing membrane was modified by single-walled carbon nanotubes (SWCNTs) as an ion-to-electron transducer. The sensors exhibited high sensitivity that reached 4.7 × 10−5 M of near-Nernestian slope (−60.1 ± 0.9 mV/decade, r2 = 0.999 (n= 5)). In addition, the sensors revealed high selectivity, long lifetime, high potential stability, and conductivity that ensure reproducible and accurate results over a long time. MIP characterization was performed using Fourier Transform-Infrared (FT-IR) and a scanning electron microscope (SEM). Regarding the interaction of NaDC with serum albumin (SA), albumin is determined in human serum samples as human serum albumin (HSA), which was collected from different volunteers of different ages and gender.

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Volumetric, compressibility and viscometric studies on sodium cholate/sodium deoxycholate–amino acid interactions in aqueous medium

Cited by 35 publications

References 62 publications

Volumetric Properties of Sodium Lauroylsarcosinate in Aqueous Alcohol Solutions of Methanol, Ethanol, and 1-Propanol

Volumetric Properties of Sodium Lauroylsarcosinate in Aqueous Alcohol Solutions of Methanol, Ethanol, and 1-Propanol

Thermodynamics and Structural Evolution during a Reversible Vesicle–Micelle Transition of a Vitamin-Derived Bolaamphiphile Induced by Sodium Cholate

Modified Potentiometric Screen-Printed Electrodes Based on Imprinting Character for Sodium Deoxycholate Determination

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