Interaction of Some Amino Acids with Sodium Dodecyl Sulphate in Aqueous Solution at Different Temperatures

The density ρ, and viscosity η of 0.00, 0.05, 0.10, 0.15, and 0.20 mol kg−1 glycine (Gly), dlalanine (Ala), dl-serine (Ser), and dl-valine (Val) have been measured in 0.002 mol kg−1 aqueous sodium dodecyl sulphate (SDS) at 298.15, 303.15, 308.15, and 313.15 K. These data have been used to calculate the apparent molar volume φv, infinite dilution apparent molar volume φv°, and the standard partial molar volumes of transfer φv° (tr), of the amino acids from water to the aqueous SDS solutions. Falkenhagen coefficient A, Jones-Dole coefficient B, free energies of activation per mole of solvent (aqueous SDS) Δμ1°*, and per mole solute (amino acids) Δμ2°*, also enthalpy ΔH* and entropy ΔS* of activation of viscous flow were evaluated using viscosity data. The molar refraction RD was calculated by using experimental values of the refractive index nD of the systems. The results have been interpreted in terms of ion-ion, ion-polar and hydrophobic-hydrophobic group interactions. The volume of the transfer data suggest that ion-ion intertactions are predominant.

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Solution and Surface Properties of Metformin Hydrochloride in Aqueous Solution and Its Interaction with Amino Acids and Anionic Surfactant, Sodium Dodecyl Sulphate

Proceedings of the National Academy of Sciences India Section A Physical Sciences ◽

10.1007/s40010-018-0587-2 ◽

2019 ◽

Vol 90 (3) ◽

pp. 389-398 ◽

Cited By ~ 2

Author(s):

Muhammad Shakeel ◽

Khalid Mehmood ◽

Muhammad Siddiq

Keyword(s):

Aqueous Solution ◽

Amino Acids ◽

Surface Properties ◽

Anionic Surfactant ◽

Sodium Dodecyl Sulphate ◽

Sodium Dodecyl ◽

Metformin Hydrochloride

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Exploring the effects of selected essential amino acids on the self-association of sodium dodecyl sulphate at different temperatures

Journal of Molecular Liquids ◽

10.1016/j.molliq.2021.118003 ◽

2021 ◽

pp. 118003

Author(s):

Arif Hussain ◽

Aminu Dabo Shuaibu ◽

Ahson Jabbar Shaikh ◽

Asad Muhammad Khan

Keyword(s):

Amino Acids ◽

Sodium Dodecyl Sulphate ◽

Sodium Dodecyl ◽

Essential Amino Acids ◽

The Self ◽

Different Temperatures ◽

Self Association

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Synthesis of Nano-sized Nickel Particles by a Bottom-up Approach in the Presence of an Anionic Surfactant and a Cationic Polymer

Journal of Scientific Research ◽

10.3329/jsr.v2i2.3261 ◽

2010 ◽

Vol 2 (2) ◽

pp. 313-321 ◽

Cited By ~ 12

Author(s):

K. M. A. Haque ◽

M. S. Hussain

Keyword(s):

Anionic Surfactant ◽

Sodium Dodecyl Sulphate ◽

Sodium Dodecyl ◽

Cationic Polymer ◽

Sem Images ◽

Bottom Up ◽

Nonionic Polymer ◽

Tem Characterization ◽

Nickel Particles ◽

Different Temperatures

Nano-sized nickel particles have been synthesized by a bottom-up approach, using hydrazine as the reducing agent in the presence of an anionic surfactant - sodium-dodecyl sulphate (SDS). The effect of adding a nonionic polymer -polyvinylpyrrolidone (PVP) with an anionic surfactant has been studied at two different temperatures; the rate of reduction increased as the reaction temperature was increased from 60 to 100°C. These nano-aggregated nickel particles were characterized by using SEM with EDX facilities and TEM. TEM characterization showed the presence of spherical Ni particles as fine as 10nm in diameter. However, the SEM images showed a very spiky morphology, very small spherical shaped objects were clearly observed within these spiky structures. The combination of SDS/PVP reaction produced nano-sized nickel particles which were much finer than the reactions where SDS was used on its own. PVP has shown some dispersion power, and was found to be capable of preventing nickel particles from gradual agglomeration. Keywords: Bottom-up; SDS; PVP; 10 nm. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI:10.3329/jsr.v2i2.3261 J. Sci. Res. 2 (2), 313-321 (2010)

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Rabbit Tamm–Horsfall urinary glycoprotein. Chemical composition and subunit structure

Biochemical Journal ◽

10.1042/bj1220623 ◽

1971 ◽

Vol 122 (5) ◽

pp. 623-631 ◽

Cited By ~ 15

Author(s):

Anne M. S. Marr ◽

A. Neuberger ◽

Wendy A. Ratcliffe

Keyword(s):

Amino Acids ◽

Molecular Weight ◽

Chemical Composition ◽

Sodium Dodecyl Sulphate ◽

Gel Electrophoresis ◽

Sodium Dodecyl ◽

Gel Filtration ◽

Cross Reactivity ◽

Subunit Structure ◽

Terminal Amino

1. Tamm–Horsfall glycoprotein from rabbit urine has been isolated and characterized. The homogeneity of the preparation has been established by a variety of procedures including disc gel electrophoresis and ultracentrifugation in aqueous solution, sodium dodecyl sulphate and formic acid. 2. The chemical composition has been determined and a carbohydrate content of approx. 31% was obtained. The relative contents of the amino acids were shown to be very similar to those in human Tamm–Horsfall glycoprotein. A trace of lipid was also detected. 3. Leucine was identified as the only N-terminal amino acid. 4. The subunit structure was investigated in the presence of sodium dodecyl sulphate by gel filtration and disc gel electrophoresis. These studies indicated that the subunit possessed a molecular weight of approx. 84000±6000. A similar value was obtained after reduction and S-alkylation of the glycoprotein indicating that the disulphide bonds were all intrachain. 5. A minimum value for the chemical molecular weight of 85000±6000 was obtained from the number of N-terminal amino acids released by cyanogen bromide cleavage of the glycoprotein. 6. The immunological properties of the glycoprotein were studied. Cross reactivity was demonstrated between human Tamm–Horsfall glycoprotein and a guinea-pig anti-rabbit Tamm–Horsfall antiserum.

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