Aggregation behavior of sodium salt of ibuprofen with conventional and gemini surfactant

Kumar, Dileep; Azum, Naved; Rub, Malik Abdul; Asiri, Abdullah M.

doi:10.1016/j.molliq.2018.04.053

Cited by 146 publications

(54 citation statements)

References 63 publications

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“…The excess free energy of micellization can be utilized to investigate the nonideality of the mixed micelles due to the interaction between the studied surfactants (Azum et al, , , ; Kumar et al, ; Molla et al, ; Picullel and Lindman, ; Rub et al, , , , ) by means of the following equations:

normalΔ G_{ex}^{Rub} = italicRT ([], X_{1}^{Rub} ln f_{1}^{Rub} + ((), 1 - X_{1}^{Rub}) ln f_{2}^{Rub})

normalΔ G_{ex}^{M} = italicRT ([], X_{1}^{M} ln f_{1}^{M} + ((), 1 - X_{1}^{M}) ln f_{2}^{M})

normalΔ G_{ex}^{Rod} = italicRT ([], X_{1}^{Rod} ln f_{1}^{Rod} + ((), 1 - X_{1}^{Rod}) ln f_{2}^{Rod}) .

…”

Section: Resultsmentioning

confidence: 99%

“…The excess free energy of micellization can be utilized to investigate the nonideality of the mixed micelles due to the interaction between the studied surfactants (Azum et al, 2016(Azum et al, , 2017c(Azum et al, , 2017dKumar et al, 2018;Molla et al, 2018;Picullel and Lindman, 1992;Rub et al, 2014aRub et al, , 2014bRub et al, , 2017aRub et al, , 2017b by means of the following equations:…”

Section: Excess Free Energymentioning

confidence: 99%

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Aggregation Behavior of Sodium Dodecyl Sulfate and Cetyltrimethylammonium Bromide Mixtures in Aqueous/Chitosan Solution at Various Temperatures: An Experimental and Theoretical Approach

Mahbub

Rahman

Rana

et al. 2018

J Surfact & Detergents

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A conductometric study of the mixed micellization behavior between cetyltrimethylammonium bromide (CTAB, a cationic surfactant) and sodium dodecyl sulfate (SDS, an anionic surfactant) was carried out in the absence/presence of various percentages of chitosan in the temperature range of 298.15–318.15 K. The deviations of critical micelle concentration (cmc) from the ideal values indicate the interaction between CTAB and SDS. The micellar mole fraction values according to different proposed models X1Rub (Rubingh), X1M (Motomura), X1Rod (Rodenas), and X1id (ideal mole fraction) were estimated and the results obtained reveal the high contribution of CTAB in the mixed micellization, which enhances with the increase of the mole fraction of CTAB. The negative magnitudes of normalΔGm0 indicate the spontaneous formation of mixed micelles between CTAB and SDS. The values of activity coefficients (f1 and f2) were less than unity and the values of the interaction parameter (β) are negative in all cases, which indicate the attractive interaction between CTAB and SDS. The negative values of excess free energy of micellization (ΔGex) signify the stability of the mixed micelles. The negative values of normalΔHm0 in the chitosan systems indicate that micellization is exothermic. The values of normalΔSm0 were found to be positive in all cases.

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normalΔ G_{ex}^{Rub} = italicRT ([], X_{1}^{Rub} ln f_{1}^{Rub} + ((), 1 - X_{1}^{Rub}) ln f_{2}^{Rub})

normalΔ G_{ex}^{M} = italicRT ([], X_{1}^{M} ln f_{1}^{M} + ((), 1 - X_{1}^{M}) ln f_{2}^{M})

normalΔ G_{ex}^{Rod} = italicRT ([], X_{1}^{Rod} ln f_{1}^{Rod} + ((), 1 - X_{1}^{Rod}) ln f_{2}^{Rod}) .

…”

Section: Resultsmentioning

confidence: 99%

“…The excess free energy of micellization can be utilized to investigate the nonideality of the mixed micelles due to the interaction between the studied surfactants (Azum et al, 2016(Azum et al, , 2017c(Azum et al, , 2017dKumar et al, 2018;Molla et al, 2018;Picullel and Lindman, 1992;Rub et al, 2014aRub et al, , 2014bRub et al, , 2017aRub et al, , 2017b by means of the following equations:…”

Section: Excess Free Energymentioning

confidence: 99%

Aggregation Behavior of Sodium Dodecyl Sulfate and Cetyltrimethylammonium Bromide Mixtures in Aqueous/Chitosan Solution at Various Temperatures: An Experimental and Theoretical Approach

Mahbub

Rahman

Rana

et al. 2018

J Surfact & Detergents

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“…Thus, investigations of [Zn (II)‐Trp] + and ninhydrin could be utilized as a simple and reliable kinetic probe in aggregated structural systems. The investigation may also be performed in the presence of gemini surfactant micelles as well as mixed surfactant systems for the enhanced utility of technique/method.…”

Section: Discussionmentioning

confidence: 99%

Kinetic and mechanistic investigations of [Zn (II)‐Trp]⁺ and ninhydrin in aqueous and cationic CTAB surfactant

Kumar

Rub

2019

J of Physical Organic Chem

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Kinetic and mechanistic investigations of [Zn (II)‐Trp]+ and ninhydrin in aqueous and cationic cetyltrimethylammonium bromide (CTAB) surfactant have been executed in CH3COOH‐CH3COONa buffers of pH 5.0. Spectrophotometric as well as conductometric techniques were employed to carry out the study at experimental temperature. The values of rate constant (kobs in aqueous and kψ in CTAB surfactant) and binding parameters (KB for [Zn (II)‐Trp]+ and KN for ninhydrin) have been determined by the means of a computer program referred to as linear least squares technique. Fractional‐ and first‐order kinetics were found in ninhydrin and [Zn (II)‐Trp]+, respectively, in aqueous and cationic CTAB. Study was catalyzed and accelerated by CTAB surfactant. An increase in CTAB surfactant concentration from 0 to 45 mmol kg−1 resulted to an increase in kψ from 2.5 × 10−5 s−1 to 22.7 × 10−5 s−1. Surfactant concentration beyond 45 mmol kg−1 had a slow decreasing effect in kψ. In order to elucidate CTAB effect on kψ, a pseudo‐phase model of micelles was applied.

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“…A lot of study has been reported on physicochemical activities of geminis and their morphologies in the field of surface science (Ganesan et al, ; Khossravi, ; Kumar et al, , c; Xia and Zana, ). Therefore, investigation and fundamental perspectives of gemini surfactants on the interaction of the metal‐dipeptide complex and ninhydrin are of great interest.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Metal Ion‐Coordinated Dipeptide Complex and Ninhydrin in the Alkanediyl‐α,ω‐bis‐Type Gemini Surfactant System

Kumar

Rub

2019

J Surfact & Detergents

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In the current study, interaction of a metal ion‐coordinated dipeptide complex and ninhydrin was examined in the alkanediyl‐α,ω‐bis‐type gemini surfactant system. This work was performed as a function of reactants (ninhydrin and metal‐dipeptide complex), surfactants, temperature, and pH. Different techniques including UV–vis spectrophotometry were used to carry out the experiments. The kψ–values were evaluated in the presence of alkanediyl‐α,ω‐bis‐type gemini surfactants. A first‐order path in the metal‐dipeptide complex and a fractional‐order path in ninhydrin were noticed. To illustrate the quantitative analysis of kψ–[gemini] profiles, a pseudophase model of micelles was employed. Thermodynamic parameters were also evaluated and explained. By the observed outcomes, a probable mechanism was suggested and discussed in detail.

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Aggregation behavior of sodium salt of ibuprofen with conventional and gemini surfactant

Cited by 146 publications

References 63 publications

Aggregation Behavior of Sodium Dodecyl Sulfate and Cetyltrimethylammonium Bromide Mixtures in Aqueous/Chitosan Solution at Various Temperatures: An Experimental and Theoretical Approach

Aggregation Behavior of Sodium Dodecyl Sulfate and Cetyltrimethylammonium Bromide Mixtures in Aqueous/Chitosan Solution at Various Temperatures: An Experimental and Theoretical Approach

Kinetic and mechanistic investigations of [Zn (II)‐Trp]⁺ and ninhydrin in aqueous and cationic CTAB surfactant

Interaction of Metal Ion‐Coordinated Dipeptide Complex and Ninhydrin in the Alkanediyl‐α,ω‐bis‐Type Gemini Surfactant System

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Aggregation behavior of sodium salt of ibuprofen with conventional and gemini surfactant

Cited by 146 publications

References 63 publications

Aggregation Behavior of Sodium Dodecyl Sulfate and Cetyltrimethylammonium Bromide Mixtures in Aqueous/Chitosan Solution at Various Temperatures: An Experimental and Theoretical Approach

Aggregation Behavior of Sodium Dodecyl Sulfate and Cetyltrimethylammonium Bromide Mixtures in Aqueous/Chitosan Solution at Various Temperatures: An Experimental and Theoretical Approach

Kinetic and mechanistic investigations of [Zn (II)‐Trp]+ and ninhydrin in aqueous and cationic CTAB surfactant

Interaction of Metal Ion‐Coordinated Dipeptide Complex and Ninhydrin in the Alkanediyl‐α,ω‐bis‐Type Gemini Surfactant System

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Product

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Kinetic and mechanistic investigations of [Zn (II)‐Trp]⁺ and ninhydrin in aqueous and cationic CTAB surfactant