Clouding and Thermodynamic Characteristics of Triton X-100 in the Presence of Ciprofloxacin Hydrochloride: Influence of Polyols

Mahbub, Shamim; Rub, Malik Abdul; Hoque, Md. Anamul

doi:10.1021/acs.jced.9b00579

Cited by 36 publications

(14 citation statements)

References 55 publications

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“…In the presence of dye, the value of ΔG o ads becomes more negative, indicating the spontaneous process of adsorption, and the value of π CMC increases, indicating a higher efficiency of lowering the surface tension. e increase in positive pC 20 and negative ΔG o m values suggests that the micellization process is more feasible and spontaneous in the presence of dye. e Γ max values of SDS decreased and A min increased in the presence of dye.…”

Section: Discussionmentioning

confidence: 98%

“…ere is a considerable interest in the role of cosolvents for the formation of micelles in surfactant solutions from both fundamental and applied points of view because the use of surfactants in many physicochemical and interface phenomena largely depends on the interactional behavior of them [16]. e adding of external additives into the aggregate structure of surfactants will change their physicochemical characteristics such as the degree of ionization, reaction rates, and clouding or phase separation [17][18][19][20]. In the same way, the critical micelle concentration of ionic surfactants is significantly altered by the addition of a modest quantity of an organic solvent, since the added organic solvent will, in general, break or make the water structure by solvating the hydrophobic tail of the surfactant by its hydrocarbon (hydrophobic) portion [21].…”

Section: Introductionmentioning

confidence: 99%

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Physicochemical Studies on the Interaction between Sodium Dodecyl Sulfate and Methylene Blue in Methanol-Water Mixed Solvent Media

Shah

Jha

Bhattarai

2020

Journal of Chemistry

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The surface activity and the process of micellization of sodium dodecyl sulfate (SDS) with methylene blue (MB) in a methanol-water mixed solvent system were investigated by tensiometry and conductometry at 298.15 K. The measurements of surface tension and conductivity of SDS-MB complex were carried up to 0.3 volume fractions of methanol because the resulting complex appeared turbid above 0.3 volume fractions of methanol. The critical micelle concentration (CMC) of the SDS was determined from both tensiometry and conductometry. The CMC of SDS increased with the increasing volume fraction of methanol due to the inclusion of methanol in the micelles and decreased in the presence of methylene blue due to the reduction of electrostatic repulsion within the anionic moiety of SDS by the positive charge of the added dye. Different properties like surface excess concentration Γ max , minimum surface area A min , Gibbs free energy of micellization Δ G m o , surface pressure ( π CMC ), efficiency of a surfactant ( p C 20 ), packing parameter P , and standard free energy interfacial adsorption Δ G ads o of SDS in the absence/presence of MB were calculated. On the basis of Δ G m o values, it was noticed that the increasing volume fraction of methanol disfavors the micellization of SDS, while the presence of MB increased the efficiency of SDS making the micellization process more spontaneous.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Physicochemical Studies on the Interaction between Sodium Dodecyl Sulfate and Methylene Blue in Methanol-Water Mixed Solvent Media

Shah

Jha

Bhattarai

2020

Journal of Chemistry

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“…With the enhancement of the temperature, the cloudiness of the solution appears at a particular temperature, which is considered as CP of the corresponding solution condition. The CP estimation was performed according to the procedure reported in the literature. ,− The temperature at which the solution becomes cloudy was recorded, and it was removed from the water bath and the temperature at which the cloudiness disappearance was also recorded. The total procedure for certain solutions was accomplished thrice and the average of the temperatures corresponding to the appearance and disappearance of turbidity were considered as CP of that solution.…”

Section: Methodsmentioning

confidence: 99%

“…The augmentation of temperature is the cause of ruin of these weak H-bonds, which in turn reduces the aqueous solubility of nonionic surfactants and, at a certain temperature, separates out into two different phases. The temperature corresponding to this phase segregation is termed as CP of the surfactants, ,, and this temperature (CP) is believed to be the limit of solubility of nonionic surfactants . CFH is third-generation antibiotic that is used in the treatment of various bacterial infections.…”

Section: Introductionmentioning

confidence: 99%

Influence of Polyol/Salt Additives on the Drug-Mediated Phase Separation and Thermodynamic Properties of Triton X-100

et al. 2019

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Herein, we investigated the impact of different additives [polyols (glucose, galactose, and maltose)/electrolytes (KCl, K 2 SO 4 , and K 3 PO 4 •7H 2 O)] on the interaction between quinolone antibiotic drug, ciprofloxacin hydrochloride (CFH), and Triton X-100 (TX-100) via the cloud point (CP) measurement technique. The magnitudes of CP of TX-100 were observed to be reduced with the enlargement of TX-100 concentration. The CP values show U-shaped variation as a function of CFH concentration in the aqueous medium. The CP values dwindle in the existence of electrolyte, which continues with the rise of electrolyte concentration. The observed CP values in the electrolyte medium follow the order CP K 3 PO 4 •7H 2 O > CP K 2 SO 4 > CP KCl . The CP values reduced in the presence of organic additives (polyols) also. The executed magnitudes of Gibbs free energy (ΔG c °) of clouding were positive in all cases, signifying the nonspontaneous phenomenon. The ΔG c °values reduce with TX-100 concentration. The values of enthalpy of clouding (ΔH c °) and entropy of clouding (ΔS c °), as well as different transfer properties of thermodynamic parameters, were estimated and interpreted in detail. Excellent entropy−enthalpy compensation was observed in all cases.

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“…Assessed different parameters associated with these phenomena were measured solving Equation 9. [68,69] Note: Relative standard uncertainties (u r ) limits are u r (ΔH o,* m ) = ±4% and u r (T c = 0.2 K). Abbreviation: CFH, ciprofloxacin hydrochloride; SDS, sodium dodecyl sulfate.…”

Section: Enthalpy-entropy Compensationmentioning

confidence: 99%

Role of carbonate electrolytes on interaction of quinolone drug with anionic surfactant at various temperatures: A conductometric study

Mahbub

Islam

Masum

et al. 2020

J of Physical Organic Chem

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The role of different carbonate salts on the interaction of anionic surfactant sodium dodecyl sulfate (SDS) with employed quinolone antibiotic drug (ciprofloxacin hydrochloride [CFH]) was explosively inspected through measuring specific conductivity (κ) of the investigated system. The drug, CFH, is an excellent antibiotic for the treatment of different bacterial infections like skin, urinary tract, and respiratory infections. The estimated critical micelle concentrations (cmc) of SDS were observed to be dwindled in the attendance of electrolytes and cmc reduction continues with the escalation of the electrolyte's concentration. The magnitudes of cmc for the SDS + CFH mixture were reduced with the elevation of temperature in K2CO3 and CaCO3 medium while increased with the rise of the temperature in the Na2CO3 medium. The magnitudes of counterion binding to micelles (β) were increased with the increase of the concentration of Na2CO3 and K2CO3 up to definite value and then reduced with the increase of successive rise of concentration of both salts at all temperatures while decreased monotonically with the rise of electrolyte concentration in CaCO3 medium. The values of standard free energy ( ∆Gmo) were achieved to be negative in each case suggesting spontaneous self‐assembly formation. The standard entropy change ( ∆Smo) along with enthalpy change ( ∆Hmo) was also assessed and discussed elaborately.

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Clouding and Thermodynamic Characteristics of Triton X-100 in the Presence of Ciprofloxacin Hydrochloride: Influence of Polyols

Cited by 36 publications

References 55 publications

Physicochemical Studies on the Interaction between Sodium Dodecyl Sulfate and Methylene Blue in Methanol-Water Mixed Solvent Media

Physicochemical Studies on the Interaction between Sodium Dodecyl Sulfate and Methylene Blue in Methanol-Water Mixed Solvent Media

Influence of Polyol/Salt Additives on the Drug-Mediated Phase Separation and Thermodynamic Properties of Triton X-100

Role of carbonate electrolytes on interaction of quinolone drug with anionic surfactant at various temperatures: A conductometric study

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