Significant effect of polar head group of surfactants on the solubilization of Zein in mixed micellar (SDS–DDAB) media

Mehta, S.K.; Bhawna, -

doi:10.1016/j.colsurfb.2010.06.027

Cited by 21 publications

(15 citation statements)

References 38 publications

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“…These cases can be explained by the formation of compact mixed micelle due to the intercalation of nonionic OP-10 at x 1 < 0.6 and the increase of electrostatic repulsion between the ionic headgroups of C12AS at x 1 > 0.6 [18]. The similar viewpoint can be supported by some previous investigations [19][20][21][22].…”

Section: Micellization Of C12as Op-10 and Their Mixtures In Aqueous supporting

confidence: 65%

Effect of sodium chloride on interaction between amino sulfonate amphoteric surfactant and octylphenol polyoxyethylene ether (10) in aqueous solution

Ren

2015

Journal of Industrial and Engineering Chemistry

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Section: Micellization Of C12as Op-10 and Their Mixtures In Aqueous supporting

confidence: 65%

Effect of sodium chloride on interaction between amino sulfonate amphoteric surfactant and octylphenol polyoxyethylene ether (10) in aqueous solution

Ren

2015

Journal of Industrial and Engineering Chemistry

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“…Several studies have been published on the determination of the CMC of surfactants using various methods [22][23][24][25][26][27][28]. But, there are a few reports on the determination of CMC for surfactants (anionic, cationic and non ionic) by UV spectroscopy [29].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of CMC Evaluation in Single and Mixed Surfactant Systems, Using the UV–Vis Spectroscopic Method

Tanhaei

Saghatoleslami

Chenar

et al. 2012

J Surfact & Detergents

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In this study, the critical micellar concentration (CMC) of anionic, cationic and nonionic surfactants was determined using the UV-Vis spectroscopic method. Sodium lauryl sulfate (SDS) as anionic, hexadecyl-trimethyl-ammonium bromide as cationic, tert-octylphenol ethoxylates TOPEON (with N = 9.5, 7.5 and 35) and lauryl alcohol ethoxylate (23EO) as nonionic surfactants have been used. Concentration of surfactants varies both from below and above the CMC value in the pyrene solution. In addition, the amount of the CMC was determined using the values from the data obtained from the graph of absorbance versus concentration of surfactants. A comparative study was conducted between the results of the present study and the literature which shows a good agreement, in particular for TOPEO9.5 and LAEO23. Furthermore, the CMC value of SDS (as an ionic surfactant) in the presence of nonionic surfactants was also examined. The result reveals that with addition of small amount of nonionic surfactant to the anionic SDS surfactant, a decline in the CMC value of the anionic-nonionic system relative to the CMC of pure anionic surfactant was observed. In addition and for the first time, the effect of UV irradiation on the size of the micelle formations was studied. It was found that UV irradiation causes the formation of smaller micelles which is of prime concern in membrane technology.

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“…Both of them are hydrophobic proteins. , Thus, zein is often employed as a model protein to evaluate the skin irritation potential of surfactants. Cationic surfactants bind with zein mainly by the hydrophobic interactions of their hydrocarbon chains with the hydrophobic domains of zein and the electrostatic attraction between their cationic headgroups and some negatively charged amino acid residues in zein . Therefore, reducing the number of hydrophobic chains and the charge density of cationic surfactant headgroups is favorable for improvement of the mildness of surfactants.…”

Section: Resultsmentioning

confidence: 99%

“…Cationic surfactants bind with zein mainly by the hydrophobic interactions of their hydrocarbon chains with the hydrophobic domains of zein and the electrostatic attraction between their cationic headgroups and some negatively charged amino acid residues in zein. 67 Therefore, reducing the number of hydrophobic chains and the charge density of cationic surfactant headgroups is favorable for improvement of the mildness of surfactants. In addition, recent studies also suggested that the surfactants with stronger self-assembling ability and larger aggregates show weaker skin irritation.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Self-Aggregation, Antibacterial Activity, and Mildness of Cyclodextrin/Cationic Trimeric Surfactant Complexes

Zhou

Wang

Cao

et al. 2016

ACS Appl. Mater. Interfaces

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Despite efficacious antimicrobial activity, cationic oligomeric surfactants show strong skin irritation potential due to their larger cationic charge numbers and multiple hydrophobic chains. This work reports that the incorporation of α-, β-, and γ-CDs with different cavity sizes can effectively improve the mildness of cationic ammonium trimeric surfactant DTAD with a star-shaped spacer while maintaining its high antibacterial activity. On the basis of the different cavity sizes of CDs and the asymmetry in the spacer of DTAD, the CD/DTAD mixtures form α-CD@DTAD, 2α-CD@DTAD, β-CD@DTAD, and γ-CD@DTAD complexes. Compared to DTAD, these CD/DTAD complexes show much stronger self-assembly ability with much lower critical aggregation concentrations (CAC) and form more diverse aggregates with reduced zeta potential. Just above their CACs, the CD/DTAD complexes form vesicles or solid spherical aggregates of ∼50 nm and then transform into small micelles of ∼10 nm as the concentration increases. The strong self-assembly ability and the multiple sites of hydrogen bonds of the CD/DTAD complexes endow them with high antibacterial activity against E. coli, showing a very low minimum inhibitory concentration (2.22-2.48 μM) comparable to that of DTAD. In particular, the addition of CDs significantly reduces the abilities of DTAD in solubilizing zein (a skin model protein) and in binding with zein, and the mildness decreases in the order of 2α-CD@DTAD > β-CD@DTAD > γ-CD@DTAD > α-CD@DTAD. This tendency depends on their different self-assembling structures, and the formation of vesicles is approved to be in favor of the improvement of the mildness.

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Significant effect of polar head group of surfactants on the solubilization of Zein in mixed micellar (SDS–DDAB) media

Cited by 21 publications

References 38 publications

Effect of sodium chloride on interaction between amino sulfonate amphoteric surfactant and octylphenol polyoxyethylene ether (10) in aqueous solution

Effect of sodium chloride on interaction between amino sulfonate amphoteric surfactant and octylphenol polyoxyethylene ether (10) in aqueous solution

Experimental Study of CMC Evaluation in Single and Mixed Surfactant Systems, Using the UV–Vis Spectroscopic Method

Self-Aggregation, Antibacterial Activity, and Mildness of Cyclodextrin/Cationic Trimeric Surfactant Complexes

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