Effect of temperature and salts on the interaction of cetyltrimethylammonium bromide with ceftriaxone sodium trihydrate drug

Rahman, M. M.; Khan, Mohammed Abdullah; Rub, Malik Abdul; Hoque, Md. Anamul

doi:10.1016/j.molliq.2016.08.049

Cited by 104 publications

(39 citation statements)

References 41 publications

(58 reference statements)

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“…Thermodynamic parameters provide sufficient information about the structural, environmental, and additive effect on the micellization of the amphiphiles. Thermodynamic parameters (standard Gibbs free energy of micellization [Δ G m o ]/enthalpy of micellization [Δ H m o ]/entropy of micellization [Δ S m o ]) of individual surfactants (DTAC & CTAB) and DTAC‐CTAB mixed system in H 2 O/NH 2 CONH 2 were calculated on the basis of mass action model with the help of the subsequent equations:

normalΔ G_{m}^{0} = - ((), 2 - g) italicRT ln X_{cmc}

normalΔ H_{m}^{O} = - ((), 2 - g) {RT}^{2} ([], \frac{d ln X_{italiccmc}}{d T})

∆ {S^{0}}_{m} = ((), ∆ {H^{0}}_{m} - ∆ {G^{0}}_{m}) / T

…”

Section: Resultsmentioning

confidence: 99%

Mixed micellization study of dodecyltrimethylammonium chloride and cetyltrimethylammonium bromide mixture in aqueous/urea medium at different temperatures: Theoretical and experimental view

Mahbub

Rub

Hoque

et al. 2018

J of Physical Organic Chem

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The behavior of mixed micelle formation between two cationic surfactants‐dodecyltrimethylammonium chloride (DTAC) and cetyltrimethylammonium bromide (CTAB) in absence/attendance of urea has been investigated by means of conductivity measurements over temperature range of 298.15 to 318.15 K. Lower magnitudes of the critical micelle concentration from their ideal values imply the strong interaction between the studied amphiphiles. The micellar mole fraction (X1) on the basis of the different proposed model (Rubingh, Motomura & Rodenas) and the ideal micellar mole fraction (Xid) were evaluated, and estimated results imply the high contribution of CTAB in the mixed micelle formation that enhances with the augment of the mole fraction of the CTAB. The values of activity coefficients (f1 and f2) (less than unity) and negative values of the interaction parameter (β) in all cases signify the attractive interaction between the amphiphiles studied. Spontaneous mixed micelle formation between the studied amphiphiles (dodecyltrimethylammonium chloride and CTAB) was indicated by the negative magnitudes of free energy of micellization (ΔGm0). The negative values of excess free energy of micellization (ΔGex) indicate the higher stability of the mixed micelle compared with the single micelle. The standard enthalpy change of micellization (ΔHm0) and standard entropy change of micellization (ΔSm0) were also calculated and discussed.

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normalΔ G_{m}^{0} = - ((), 2 - g) italicRT ln X_{cmc}

normalΔ H_{m}^{O} = - ((), 2 - g) {RT}^{2} ([], \frac{d ln X_{italiccmc}}{d T})

∆ {S^{0}}_{m} = ((), ∆ {H^{0}}_{m} - ∆ {G^{0}}_{m}) / T

…”

Section: Resultsmentioning

confidence: 99%

Mixed micellization study of dodecyltrimethylammonium chloride and cetyltrimethylammonium bromide mixture in aqueous/urea medium at different temperatures: Theoretical and experimental view

Mahbub

Rub

Hoque

et al. 2018

J of Physical Organic Chem

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“…The free energy of transfer (

normalΔ G_{c, t}^{0}

) of clouding of surfactants in water (H 2 O) to the solution along with additives was estimated using the following equation (Kresheck, ; Rahman et al, , ):

{italicΔG}^{italic0}_{c, t} = {italicΔG}^{italic0}_{c} ((), aq . of additive) - {italicΔG}^{italic0}_{c} ((), aq .) .

…”

Section: Resultsmentioning

confidence: 99%

“…The free energy of transfer (ΔG 0 c,t ) of clouding of surfactants in water (H 2 O) to the solution along with additives was estimated using the following equation (Kresheck, 1975;Rahman et al, 2016Rahman et al, , 2018:…”

Section: Thermodynamics Of the Clouding Phenomenonmentioning

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 thermodynamic parameters of pure DTAB, BDHAC, and (DTAB + BDHAC) mixtures in the absence and presence of urea were evaluated on the basis of the mass action model (Akhtar et al, ; Hoque, Hossain, et al, 2014; Hoque et al, ; Hossain & Hoque, ; Molla et al, ; Rahman et al, ; Rub et al, ). The Gibbs energy of micellization (∆ G 0 m ) can be determined from the following equation:

∆ {G^{0}}_{m} = ((), 2 - g) italicRT ln ((), X_{italiccmc})

…”

Section: Resultsmentioning

confidence: 99%

“…A Jenway 4510 bench conductivity meter (Jenway, Staffordshire, UK), with a cell constant 0.97 cm −1 (the value provided by the manufacturer) and operating at 60 Hz alternating current, was used to measure the specific conductivity of surfactants in pure water and in aqueous urea solutions. This method has been followed by different researchers in the literature (Akhtar, Hoque, & Khan, 2008;Hoque, Khan, et al, 2013;Hoque, Hossain, et al, 2013;Hossain & Hoque, 2014;Rahman, Khan, Rub, & Hoque, 2016;Rub, Kumar, Azum, Khan, & Asiri, 2014). The conductivity meter was standardized with potassium chloride (KCl) solutions.…”

Section: Conductivity Measurementsmentioning

confidence: 99%

Conductometric Probe Analysis of the Effect of Benzyldimethylhexadecylammonium Chloride on the Micellization Behavior of Dodecyltrimethylammonium Bromide in Aqueous/Urea Solution: Investigation of Concentration and Temperature Effect

Molla

Rana

Rub

et al. 2018

J Surfact & Detergents

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Surfactant mixtures are used in many different industrial formulations. In this study, the mixed micelle formation behavior of 2 different cationic surfactants, namely dodecyltrimethylammonium bromide (DTAB) and benzyldimethylhexadecylammonium chloride (BDHAC), in the absence and presence of urea at various temperatures (298.15–318.15 K) was studied using the conductometric method. The attractive interaction between DTAB and BDHAC was estimated from the values of critical micelle concentration (CMC) and the CMC for ideal mixing (CMCid). Urea increases the CMC value as a result of the enrichment in the surface charge of the micelles/mixed micelles. The values of micellar mole fraction (X1Rub [Rubingh], X1M [Motomura], X1Rod [Rodenas]) and ideal micellar (X1id) of surfactant BDHAC were obtained by different models and are shown to exhibit the high contribution or effective involvement of BDHAC in mixed micelles and increase with increasing BDHAC mole fraction (α1). Activity coefficients (f1 and f2) were also evaluated from the relevant formula given in the literature. The negative values of the interaction parameters (β) show the attractive interaction among the studied components. Excess Gibbs free energy (∆Gex) of micellization revealed that the stability of mixed micelles is higher in aqueous solution than in urea solution. The thermodynamic parameters, namely the Gibbs free energy change, enthalpy change, and entropy change (∆Gom, ΔHom, and ∆Som, respectively), were also calculated from the conventional standard equations.

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Effect of temperature and salts on the interaction of cetyltrimethylammonium bromide with ceftriaxone sodium trihydrate drug

Cited by 104 publications

References 41 publications

Mixed micellization study of dodecyltrimethylammonium chloride and cetyltrimethylammonium bromide mixture in aqueous/urea medium at different temperatures: Theoretical and experimental view

Mixed micellization study of dodecyltrimethylammonium chloride and cetyltrimethylammonium bromide mixture in aqueous/urea medium at different temperatures: Theoretical and experimental view

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

Conductometric Probe Analysis of the Effect of Benzyldimethylhexadecylammonium Chloride on the Micellization Behavior of Dodecyltrimethylammonium Bromide in Aqueous/Urea Solution: Investigation of Concentration and Temperature Effect

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