Mixed Micellization and Interfacial Properties of Ionic Liquid‐Type Imidazolium Gemini Surfactant with Amphiphilic Drug Amitriptyline Hydrochloride and its Thermodynamics

Patel, Rajan; Khan, Abbul Bashar; Dohare, Neeraj; Ali, Mohd. Maroof; Rajor, Hament Kumar

doi:10.1007/s11743-015-1709-3

Cited by 53 publications

(41 citation statements)

References 65 publications

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“…The observed ΔGadsnormalo values are higher than normalΔGminnormalo values indicating the adsorption at the air–solution interface is more favourable than the formation of micelles in the bulk solution [52]. The ratio of normalΔGadsnormalo/normalΔGnormalmnormalo was found to be approximately 1.5 (table 3) for SDS-rich and DTAB-rich at different temperatures indicating less spontaneity in the transfer of the monomers to the interface [53].…”

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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“…The β m values of systems α 1 = 0.5 and α 1 = 0.7 are negative which means that the attractive interaction between the head groups of the two surfactants leads to stabilization due to electrostatic factor (10), but for system α 1 = 0.9 the β m value is positive which indicates a repulsive interaction, Maeda (14) suggested that the interaction between the chains of the two surfactants may play major role in addition to the interaction between the heads of surfactants in the formation of mixed micelles, especially for the dissimilar chain lengths. The values of activity coefficients, f 1 and f 2 obtained from equations 4 and 5 are less than 1 which meaning the non-ideal behavior of the studied binary systems except for α 1 system which shows a value greater than unity (15).…”

Section: = Exp[mentioning

confidence: 81%

Mixed Micelles of Binary Mixtures of Sodium Dodecylbenzene Sulfate and Tween 80 Surfactants in Aqueous Solutions

Hakeem

2020

Baghdad Sci.J

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In the present work, the surface properties of mixed binary surfactants containing sodium dodecylbenzene sulfate (SDBS) and Tween 80 (TW80) surfactants in aqueous solutions were studied at temperature 293 K using surface tension measurements. The critical micelle concentration (cmc) magnitude for both individual surfactants and their mixtures were established the obtained results revealed that the magnitude of cmc of the mixtures are less than the magnitude of individual surfactants and decrease with the increase in Tween 80 percent in solution which indicate the nonideal mixing of the two surfactants. The values of molecular interaction parameters and the mole fraction of surfactants in the micelle (X1) were calculated on the basis of Rubingh's model and showed that the interaction parameter is always negative but at 0.9 mole fraction of TW80 surfactant (α 1 ) is positive.

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“…ads /ΔG o m ) with Soaps. e observed ΔG o ads values are higher than ΔG o min values, indicating the adsorption at the air-solution interface is more favorable than the formation of micelles in the bulk solution [40]. e ratio of (ΔG o ads /ΔG o m ) is found in the range of 1.1 to 1.14 for LFBY, NM, OKT, LRL, and LX ( Figure 16).…”

Section: Correlation Of (δG Omentioning

confidence: 98%

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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Mixed Micellization and Interfacial Properties of Ionic Liquid‐Type Imidazolium Gemini Surfactant with Amphiphilic Drug Amitriptyline Hydrochloride and its Thermodynamics

Cited by 53 publications

References 65 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

Mixed Micelles of Binary Mixtures of Sodium Dodecylbenzene Sulfate and Tween 80 Surfactants in Aqueous Solutions

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

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