Aggregation, Counter Ion Binding and Adsorption Behaviors of Cetylpyridinium Chloride in Water/Glycerol Media at 25 °C

Mukhim, Teiborlang; Ismail, K.

doi:10.1007/s11743-011-1281-4

Cited by 22 publications

(10 citation statements)

References 15 publications

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“…Secondary parameters can be generated from the primary data of surface tension. In 2012, a new concept to describe the solvophobic effect [50] was proposed by Mukhim and Ismail. They calculated the ratio of the solvent surface tension to the solution surface tension at the CMC, γ0/γcmc.…”

Section: Resultsmentioning

confidence: 99%

Self-assembly of sodium dodecylsulfate and dodecyltrimethylammonium bromide mixed surfactants with dyes in aqueous mixtures

et al. 2019

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The micellar property of mixed surfactant systems, cationic (dodecyltrimethylammonium bromide, DTAB) and anionic (sodium dodecylsulfate, SDS) surfactants with variable molar ratios in aqueous system has been reported by using surface tension and conductivity measurements at T = 293.15, 298.15 and 303.15 K. DTAB concentrations are varied from 1.0 × 10 −4 to 3 × 10 −4 mol l −1 in 1.0 × 10 −2 mol l −1 SDS solution while the SDS concentration is varied from 1.0 × 10 −3 to 1.5 × 10 −2 mol l −1 in approximately 5.0 × 10 −3 mol l −1 DTAB, so that such concentrations of DTAB-SDS (DTAB-rich) and SDS-DTAB (SDS-rich) solutions were chosen 3 : 1 ratio. The critical micellar concentration, as well as surface and thermodynamic properties for DTAB-rich and SDS-rich solutions, were evaluated by the surface tension ( γ ) and conductivity ( κ ) methods. The pseudo phase separation model was coupled with the dissociated Margules model for synergism. The Krafft temperature behaviour and optical analysis of mixed surfactants are studied using conductivity and UV–Vis spectroscopy, respectively. The dispersibility and stability of DTAB-rich and SDS-rich solutions with and without dyes (2.5 × 10 −5 mol l −1 of methyl orange and methylene blue) are carried out by using UV–Vis spectroscopy and dynamic light scattering.

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Section: Resultsmentioning

confidence: 99%

Self-assembly of sodium dodecylsulfate and dodecyltrimethylammonium bromide mixed surfactants with dyes in aqueous mixtures

et al. 2019

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“…Micellization phenomenon is the key factor in the widespread activity of surfactants in various fields of chemistry, pharmaceuticals, and biology. A major area of concern nowadays is the micelle formation in the presence of additives [1,2], among which surfactant-polymer interactions are of great interest because of their importance in industrial products (detergents, cosmetics, pesticides, etc.) as well as in drug solubilisation and stabilisation [3,4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Head Groups, Temperature, and Polymer Concentration on Surfactant—Polymer Interactions

Banipal

Kaur

Banipal

et al. 2014

J Surfact & Detergents

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The micellization behaviour of sodium dodecyl sulphate, sodium dodecylbenzenesulfonate, hexadecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, and cetylpyridinium chloride in water and in aqueous solutions of polyethylene oxide (PEO, molecular weight = 100,000) having concentrations (0.005-0.04 %, w/v) has been studied at different temperatures (288.15-318.15 K) using conductivity, surface tension, and viscosity methods. From conductivity measurements various micellar parameters, like critical micellar concentration (CMC), critical aggregation concentration (CAC), polymer saturation point (PSP), degree of ionization (b), and standard free energy of transfer (DG 0 t ), have been calculated. CAC values have been found to decrease with polymer concentration and increase with temperature. However, the PSP values increase with both polymer concentration and temperature for all surfactants. Similar parameters have also been calculated from surface tension data (CMC r , CAC r , PSP r ) along with other parameters such as maximum surface excess concentration at the air/water interface (C max ), minimum area per molecule (A min ), and packing parameter (p). The CMC r , CAC r , and PSP r values are smaller than the corresponding CMC, CAC, and PSP values, but both show similar behaviour with temperature and concentration of polymer. Various parameters indicate that the presence of the aromatic ring in the head group of surfactant decreases its interaction with PEO, whereas the increased hydrophobicity in the tail leads to stronger interactions with PEO. Viscosity studies further supplement the conclusions drawn from the above results.

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“…Correlation of (κ o /κ CMC ) with Soaps. In the year 2012, Mukhim and Ismail [21] proposed the ratio of the solvent surface tension to the limiting surface tension at the CMC, (c o /c CMC ), to describe the solvophobic effect [22]. But here we tried to see the ratio of solvent conductance to the conductance at the CMC with soaps.…”

Section: Conductivity and Ermodynamic Propertiesmentioning

confidence: 99%

Conductivity, Surface Tension, and Comparative Antibacterial Efficacy Study of Different Brands of Soaps of Nepal

Chaudhary

Bhattarai

Guragain

et al. 2020

Journal of Chemistry

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The current study aims to evaluate the solution properties and antibacterial efficacy study of five different brands of toilet soaps of Nepal such as Okhati (OKT), Lifebuoy (LFBY), Lux (LX), Liril (LRL), and Chiuree Neem (NM). The evaluation of critical micelle concentration (CMC) and their thermodynamics and surface properties are also reported. This study was further extended to evaluate antibacterial efficacy against three pathogenic bacteria such as Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), and Proteus vulgaris (P. vulgaris) by disc diffusion technique, and it was done at four different concentrations of soap. The bioactive ingredients present in them provide antibacterial potency to cure various skin problems caused by bacterial pathogens. Similarly, the antibacterial potency of LFBY was found higher than other soaps. Based on these studies, we can simply take LFBY soap at the highest rank in regards to antibacterial sensitivity.

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Aggregation, Counter Ion Binding and Adsorption Behaviors of Cetylpyridinium Chloride in Water/Glycerol Media at 25 °C

Cited by 22 publications

References 15 publications

Self-assembly of sodium dodecylsulfate and dodecyltrimethylammonium bromide mixed surfactants with dyes in aqueous mixtures

Self-assembly of sodium dodecylsulfate and dodecyltrimethylammonium bromide mixed surfactants with dyes in aqueous mixtures

Effect of Head Groups, Temperature, and Polymer Concentration on Surfactant—Polymer Interactions

Conductivity, Surface Tension, and Comparative Antibacterial Efficacy Study of Different Brands of Soaps of Nepal

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