Physico-chemical investigation of the assembly and clouding development nature of the mixture of metformin hydrochloride and ionic/nonionic surfactants: Influences of hydrotropes

Rub, Malik Abdul; Hasan, Tajmul; Akter, Roksanur; Kumar, Dileep; Kabir-ud-Din, †; Asiri, M. Abdullah; Hoque, Md. Anamul

doi:10.1016/j.molliq.2022.121070

Cited by 34 publications

(4 citation statements)

References 77 publications

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“…The conductivities were recorded 2 min after each dilution, and at least three entries were taken as an average value. The CMC values were recorded in a conductivity versus different surfactant concentrations plot [63–67]. The CMC values measured in our study (H 2 O and H 2 O + ninhydrin + methionine) are shown below.…”

Section: Methodsmentioning

confidence: 99%

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Influence of twin-headed gemini micellar system on the study of methionine amino acid with ninhydrin in buffer solution

2023

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The influence of double-headed gemini was examined in the present study by studying the amino acid methionine mixed with ninhydrin in CH 3 COOH-CH 3 COONa buffer solvent. The absorbance was monitored at fixed time intervals with UV-vis spectroscopy. An impact typical of surfactants was observed on the ninhydrin–methionine reaction and explained by a pseudo-phase model of micelles. The effect of different temperatures (343 to 363 K) was also determined. Based on data showing the impact of temperature on k ψ , several relevant thermodynamic quantities, Δ H # , Δ S # , and E a , were calculated using linear least-squares regression. In addition, the influence of the other reaction ingredients on the reaction, that is, pH and the concentration of ninhydrin and methionine, was studied. The CMC (critical micelle concentration) of pure geminis and the surfactant system with methionine and ninhydrin was evaluated at two temperatures, i.e. at 303 K and 353 K by conductivity measurements. The CMC values of pure gemini surfactants evaluated in the existing case at 303 K are concordant with the results stated before. Moreover, other parameters, including rates and binding constants, were calculated.

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Section: Methodsmentioning

confidence: 99%

Section: Electrical Conductivitymentioning

confidence: 99%

Influence of twin-headed gemini micellar system on the study of methionine amino acid with ninhydrin in buffer solution

2023

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“…The values of κ were determined for every experimental run once the proper mixing and permitting enough time for temperature equilibration. The CMC value of the system has been detected by a noticeable breakpoint in the κ - [surfactant] plots (Rub et al 2023 ).…”

Section: Methodsmentioning

confidence: 99%

Investigation of the impacts of simple electrolytes and hydrotrope on the interaction of ceftriaxone sodium with cetylpyridinium chloride at numerous study temperatures

et al. 2023

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Herein, interactions between cetylpyridinium chloride (CPC) and ceftriaxone sodium (CTS) were investigated applying conductivity technique. Impacts of the nature of additives (e.g. electrolytes or hydrotrope (HDT)), change of temperatures (from 298.15 to 323.15 K ), and concentration variation of CTS/additives were assessed on the micellization of CPC + CTS mixture. The conductometric analysis of critical micelle concentration (CMC) with respect to the concentration reveals that the CMC values were increased with the increase in CTS concentration. In terms of using different mediums, CMC did not differ much with the increase in electrolyte salt (NaCl, Na 2 SO 4 ) concentration, but increased significantly with the rise of HDT (NaBenz) amount. In the presence of electrolyte, CMC showed a gentle increment with temperature, while the HDT showed the opposite trend. Obtained result was further correlated with conventional thermodynamic relationship, where standard Gibb’s free energy change , change of enthalpy , and change of entropy ) were utilized to investigate. The values were negative for all the mixed systems studied indicating that the micellization process was spontaneous. Finally, the stability of micellization was studied by estimating the intrinsic enthalpy gain ( ) and compensation temperature ( T c ). Here, CPC + CTS mixed system showed more stability in Na 2 SO 4 medium than the NaCl, while in NaBenz exhibited the lowest stability.

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“…Aggregation structures generated by surfactants have gained remarkable attention owing to their unique phenomenon. − Due to their extraordinary behavior, − surfactants are engaged in diverge functions for several research purposes including industrial studies. They are employed in many sectors of fundamental as well as advanced applications. − The binding interaction of some active organic molecules with surfactants has been reported and displayed great importance in the arenas of surface chemistry. − Surfactants also work as a simple pseudophase model in several studies conducted by many potential investigators through micelle-involved reactions. − …”

Section: Introductionmentioning

confidence: 99%

Effect of Quaternary Ammonium Gemini Surfactant Solution on the Rate Constant of the Ninhydrin–Lysine Reaction

Kumar,

Khan,

Posa

et al. 2023

Ind. Eng. Chem. Res.

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The effect of solutions of double-chained quaternary ammonium gemini surfactants (16-s-16, s = 4−6) was characterized on the rate constant of the ninhydrin (nin) and lysine (Lys) reaction using a ultraviolet−visible (UV−vis) spectrophotometer. Rate constant (k ψ ) values were obtained at different geminis. However, k ψ values obtained at several geminis were displayed in the form of the k ψ −[gemini] rate profile, and the quantitative estimation of these results was elucidated employing a model of micellar catalysis referred to as pseudophase. The role of other experimental ingredients such as nin, Lys, pH, and temperature (T) was examined in geminis, and k ψ values as a function of these parameters were determined. Data treatment confirms a fractional order in [nin] and a unity order in [Lys]. Using conductometric evaluation, the critical micellar concentration (cmc) of pure double-chained gemini surfactants (16−6−16, 16−5−16, and 16−4−16) and presence of nin and Lys were recorded. Results of the present experimental value were used to determine micellar binding constants (K A for Lys and K B for nin). The binding constants and second-order rate (k m ) affect the solvent properties at the micellar surface and hence are taken into consideration and discussed.

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Physico-chemical investigation of the assembly and clouding development nature of the mixture of metformin hydrochloride and ionic/nonionic surfactants: Influences of hydrotropes

Cited by 34 publications

References 77 publications

Influence of twin-headed gemini micellar system on the study of methionine amino acid with ninhydrin in buffer solution

Influence of twin-headed gemini micellar system on the study of methionine amino acid with ninhydrin in buffer solution

Investigation of the impacts of simple electrolytes and hydrotrope on the interaction of ceftriaxone sodium with cetylpyridinium chloride at numerous study temperatures

Effect of Quaternary Ammonium Gemini Surfactant Solution on the Rate Constant of the Ninhydrin–Lysine Reaction

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