Association behavior of a mixed system of the antidepressant drug imipramine hydrochloride and dioctyl sulfosuccinate sodium salt: Effect of temperature and salt

Kumar, Dileep; Hidayathulla, Syed; Rub, Malik Abdul

doi:10.1016/j.molliq.2018.08.147

Cited by 191 publications

(60 citation statements)

References 66 publications

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“…Rub et al found negative values of Δ H 0 c as well as Δ S 0 c for CP of some amphiphilic drugs in the participation of Tw 80 as well as in presence of other additives mixed system . But in case of micellization of amphiphilic drugs, both negative as well as positive values of enthalpy and entropy were found …”

Section: Resultsmentioning

confidence: 97%

Impact of different diols/polyols on the phase separation behavior as well as thermodynamic properties of tween 80

Mishu

Amin

Rub

et al. 2019

J of Physical Organic Chem

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Herein, the cloud points (CPs) of tween 80 (Tw 80) in water/(water + diols [ethanediol, propanediol, and butanediol])/(water + polyols [glucose, fructose, and sorbitol]) systems were measured. For diols‐Tw 80‐water system and polyols‐Tw 80‐water system, the CP values were obtained to reduce gradually with increasing content of diols and polyols at a particular concentration of Tw 80. For a certain concentration of Tw 80 having different contents of diols, the observed ∆H0c, as well as ∆S0c values, were negative over the range of concentration of diols studied, and the negative values of ∆H0c and ∆S0c were reduced with the enhancement of the content of diols. The values of ∆H0c were negative, which indicate the process was exothermic. The clouding process of Tw 80 in the presence of different diols is mainly enthalpy‐controlled process, while the contributions of enthalpy tend to reduce with enhancing of the contribution of diols. In the case of polyols‐Tw 80 mixture in an aqueous environment, the ∆Gc0 values were achieved positive. The values of ∆Hc0 and ∆Sco were obtained negative for studied systems, while the negative values reduce with enhancing of polyol (glucose and fructose) concentrations. For sorbitol‐Tw 80 system, the values of ∆Hc0 were observed to be negative and the negative magnitudes reduce with enhancing of sorbitol concentrations. The thermodynamic parameters of transfer are also evaluated and illustrated in detail.

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Section: Resultsmentioning

confidence: 97%

Impact of different diols/polyols on the phase separation behavior as well as thermodynamic properties of tween 80

Mishu

Amin

Rub

et al. 2019

J of Physical Organic Chem

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“…The obtained positive values of

normalΔ H_{c}^{0}

in water are due to disruption of the H 2 O structure in the hydrophobic portion of the amphiphilic molecules (Naqvi et al, ). On the other hand, the negative values of

normalΔ H_{c}^{0}

arise when hydration of water molecules around the polar group of the amphiphilic molecules becomes more significant as compared to the rupture of the H 2 O molecules around the hydrophobic portion (Hoque et al, ; Khan et al, ; Kumar et al, ; Kumar and Rub, ).…”

Section: Resultsmentioning

confidence: 99%

Effect of Various Electrolytes on the Phase Separation and Thermodynamic Properties of p‐Tert‐Alkylphenoxy Poly (Oxyethylene) Ether in the Absence/Presence of Drugs

Amin

Mahbub

Alam

et al. 2019

J Surfact & Detergents

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Cloud point (CP) measurements of 4‐(1,1,3,3‐tetramethylbutyl) phenyl‐polyethyleneglycol (Triton X‐100 (TX‐100)) were performed in aqueous solution in the presence of drug Amikacin sulfate (AS)/Neomycin sulfate (NS)/(AS/NS+ different inorganic salts). In aqueous solution, the CP values of TX‐100 first decrease with increasing concentration and then increase with increasing surfactant concentration. The CP values of TX‐100 solutions were found to increase with the increasing concentration of the AS/NS drug. The CP values of TX‐100‐AS/NS mixtures were also observed to decrease with the increase of the concentration of salt. Different thermodynamic parameters such as standard free energy (normalΔGc0), standard enthalpy (normalΔHc0) as well as the standard entropy (normalΔSc0) change of phase separation were calculated and discussed in relation to molecular interactions.

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“…The conductivity was linearly changed with the alteration of C TTAB in both the pre‐ and postmicellar sections. A sharp contravention point in the κ vs. C TTAB plot was observed and the corresponding C TTAB value to the breaking point was taken as the CMC for the system (Kumar et al, , ; Sristy et al, ). At low C TTAB value (below the CMC), the initial growth of κ values was because of the enhanced free TTA + and Br − ions.…”

Section: Resultsmentioning

confidence: 99%

Influence of Different Additives on the Interaction of Quinolone Antibiotic Drug with Surfactant: Conductivity and Cloud Point Measurement Study

Rahim

Mahbub

Islam

et al. 2019

J Surfact & Detergents

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Conductometric and cloud point (CP) measurement studies have been performed to investigate the interaction of tetradecyltrimethylammonium bromide (TTAB) and Triton® X‐100 (TX‐100) with ciprofloxacin hydrochloride (CFH) in different solvents over the temperature range of 295.15–315.15 K. CFH is used for the treatment of various bacterial infections. The observed critical micelle concentration (CMC) values of TTAB were found to be reduced in the presence of electrolytes (Na2SO4/Na3PO4), and this reduction proceeds with the elevation of salt concentration. The order of the CMC of TTAB follows the trend: cmcH2normalO > cmcNa3PO4 >cmcNa2SO4. The observed CMC values of TTAB were found to increase with increasing temperature and decrease with increasing concentration of CFH in aqueous medium. The values of Gibbs free energy of micellization (∆Gmo) for the TTAB/TTAB + CFH mixture were found to be negative, implying spontaneous micellization. The estimated CP of TX‐100 decreases with increasing concentration of TX‐100 in aqueous medium. The CP values first decrease with increasing concentration of CFH and then increase at higher concentration of CFH almost in all cases investigated. The values of free energy of clouding were found to be positive in all cases studied implying that phase separation of TX‐100 was nonspontaneous. The other thermodynamic parameters associated with the micellization of TTAB and the phase separation of TX‐100 were estimated and explained.

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Association behavior of a mixed system of the antidepressant drug imipramine hydrochloride and dioctyl sulfosuccinate sodium salt: Effect of temperature and salt

Cited by 191 publications

References 66 publications

Impact of different diols/polyols on the phase separation behavior as well as thermodynamic properties of tween 80

Impact of different diols/polyols on the phase separation behavior as well as thermodynamic properties of tween 80

Effect of Various Electrolytes on the Phase Separation and Thermodynamic Properties of p‐Tert‐Alkylphenoxy Poly (Oxyethylene) Ether in the Absence/Presence of Drugs

Influence of Different Additives on the Interaction of Quinolone Antibiotic Drug with Surfactant: Conductivity and Cloud Point Measurement Study

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