Aggregation behaviors of gelatin with cationic gemini surfactant at air/water interface

Wu, Dan; Xu, Guiying; Feng, Yujun; Li, Yiming

doi:10.1016/j.ijbiomac.2006.09.004

Cited by 61 publications

(25 citation statements)

References 44 publications

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“…The theoretical and experimental studies on the adsorption behaviour of proteinsurfactant mixtures have been covered by a number of papers [72][73][74][75][76], and different mechanisms for the displacement of protein molecules from the interface by the surfactants have been suggested such as orogenic displacement [75] or competitive adsorption [76]. In many investigations [77][78][79][80][81], interaction of cationic gemini surfactants with proteins have exposed that such surfactants interact more competently with proteins as compared to conventional single-chain surfactants because of their distinctive aggregation properties such as lower critical micelle concentration (CMC) and Krafft temperature, special aggregation morphology, strong hydrophobic microdomains and so forth [82][83][84][85]. Cationic surfactants, being antimicrobial, have attracted attention with respect to their interaction with deoxyribonucleic acid (DNA) and lipids [86].…”

Section: Nonionic Surfactantsmentioning

confidence: 99%

Surfactant–Amino Acid and Surfactant–Surfactant Interactions in Aqueous Medium: a Review

Malik

2015

Appl Biochem Biotechnol

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An overview of surfactant-amino acid interactions mainly in aqueous medium has been discussed. Main emphasis has been on the solution thermodynamics and solute-solvent interactions. Almost all available data on the topic has been presented in a lucid and simple way. Conventional surfactants have been discussed as amphiphiles forming micelles and amino acids as additives and their effect on the various physicochemical properties of these conventional surfactants. Surfactant-surfactant interactions in aqueous medium, various mixed surfactant models, are also highlighted to assess their interactions in aqueous medium. Finally, their applied part has been taken into consideration to interpret their possible uses.

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Section: Nonionic Surfactantsmentioning

confidence: 99%

Surfactant–Amino Acid and Surfactant–Surfactant Interactions in Aqueous Medium: a Review

Malik

2015

Appl Biochem Biotechnol

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“…The results showed that the strength of the interfacial layer is greater than that of the dodecyltrimethyl ammonium bromide. They also revealed that Gemini surfactant has a stronger binding ability with gelatin than that of DTAB [24]. Zhang et al [25] studied anionic Gemini surfactants with polyoxyethylene spacers.…”

Section: Introductionmentioning

confidence: 99%

Surface dilatational properties of Gemini surfactants containing multiple hydroxyl groups

et al. 2016

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Surfactant adsorption films at the air/water interface, which usually exert a significant influence over system behaviour, are closely related to the surfactant molecular structure. In this research, a series of Gemini surfactants containing four hydroxyl groups at the head groups, namely: alkanediyl-α,ω-bis[di(2-hydroxylethyl) dodecylammonium bromide], abbreviated to 12(2OH)-s-12(2OH), where s = 3, 6, 8 and 10, respectively, were investigated by using interfacial dilatational rheological measurements. The effects of oscillating frequency, bulk concentration and spacer length on the dilatational behaviour of 12(2OH)-s-12(2OH) were investigated. The variation of dilatational modulus of 12(2OH)-8-12(2OH) with concentrations showed two peaks which were attributed to different configurations adopted by the spacer, revealing the effects of dynamic configuration of the spacer on surfactant interfacial adsorption. The fit to the results, with that data available, using the Lucassen/van den Tempel (LVT) model showed that the presence of hydroxyl groups near the head groups of Gemini surfactants enhanced the interfacial elasticity of the adsorption films.

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“…Wu et al [15] studied the dilational viscoelasticity of 1,2-ethane bis(dimethyl dodecyl ammonium bromide) (cationic gemini surfactant C 12 C 2 C 12 Á 2Br) at water-air interface, and investigated those of gelatin with C 12 C 2 C 12 Á 2Br at water-air interface. [16] Zhang et al [17] studied the influences of octadecanol and oleic acid on the dilational properties of asymmetrical anionic gemini surfactant C 12 CO 2 Na-p-C 9 SO 3 Na at the water-oil interface, and investigated those of partly hydrolyzed polyacrylamide and C 12 COONa-p-C 9 SO 3 Na at the water-decane interface. [18] Acharya et al [19] investigated static and dynamic surface tension and interfacial rheological behavior of a novel anionic gemini surfactant sodium 2,3-didodecyl-1,2,3,4-butane tetracarboxylate (GS).…”

Section: Introductionmentioning

confidence: 99%

Dilational Viscoelasticity of the Zwitterionic Gemini Surfactants with Polyoxyethylene Spacers at the Interfaces

Feng

Liu

Zhang

et al. 2011

Journal of Dispersion Science and Technology

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The dilational viscoelasticity of zwitterionic gemini surfactants C 8 E x NC 12 with polyoxyethylene spacers at the water-air and water-decane interfaces were investigated by oscillating barriers method. The experiments were carried out at different concentrations with an accessible frequency range of 0.005 to 0.1 Hz. Interfacial tension relaxation method was employed to obtain dilational parameters in a reasonably broad frequency range. Experimental results show that the values of dilational elasticity and viscosity of C 8 E x NC 12 are larger than those of common nonionic surfactants, such as T Â 100, and the dilational viscoelasticity at the water-decane is close to that at the water-air interface on the whole . The results may be attributed to Coulombic attraction, and the possible schematic diagrams of adsorbed molecules with different polyoxyethylene spacers at the water-air and water-decane interfaces are proposed. We also analyzed C 8 E x NC 12 from the results of relaxation experiments and Cole-Cole plots.

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Aggregation behaviors of gelatin with cationic gemini surfactant at air/water interface

Cited by 61 publications

References 44 publications

Surfactant–Amino Acid and Surfactant–Surfactant Interactions in Aqueous Medium: a Review

Surfactant–Amino Acid and Surfactant–Surfactant Interactions in Aqueous Medium: a Review

Surface dilatational properties of Gemini surfactants containing multiple hydroxyl groups

Dilational Viscoelasticity of the Zwitterionic Gemini Surfactants with Polyoxyethylene Spacers at the Interfaces

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