Dipole–dipole interactions control the interfacial rheological response of cyclodextrin/surfactant solutions

Soft Matter ◽  
2021 ◽  
Author(s):  
J. Roberto Romero-Arias ◽  
Alberto S. Luviano ◽  
Miguel Costas ◽  
Aurora Hernández-Machado ◽  
Rafael A. Barrio
Keyword(s):  
Aqueous Solutions ◽  
Anionic Surfactants ◽  
Rheological Study ◽  
Rheological Response ◽  
Dipole Interactions ◽  
Surfactant Solutions ◽  
Air Interface

A recent surface rheological study has shown that aqueous solutions of α-cyclodextrin (αCD) with anionic surfactants (S) display a remarkable viscoelasticity at the liquid/air interface, which has not been observed in similar systems.

Temperature-Dependent Vesicle Formation of Aqueous Solutions of Mixed Cationic and Anionic Surfactants

Langmuir ◽  
2004 ◽  
Vol 20 (6) ◽  
pp. 2117-2122 ◽  
Author(s):  
Koji Tsuchiya ◽  
Hisanori Nakanishi ◽  
Hideki Sakai ◽  
Masahiko Abe
Keyword(s):  
Aqueous Solutions ◽  
Anionic Surfactants ◽  
Vesicle Formation ◽  
Temperature Dependent ◽  
Cationic And Anionic Surfactants

scholarly journals Complexes of Ectoine with the Anionic Surfactants as Active Ingredients of Cleansing Cosmetics with Reduced Irritating Potential

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1433
Author(s):  
Tomasz Bujak ◽  
Martyna Zagórska-Dziok ◽  
Zofia Nizioł-Łukaszewska
Keyword(s):  
Antioxidant Activity ◽  
Systems Analysis ◽  
Anionic Surfactants ◽  
Surfactant Solution ◽  
Model Systems ◽  
Surfactant Solutions ◽  
Atopic Skin ◽  
Cytotoxic Studies ◽  
Skin Care Products ◽  
Selection Of

For many years, an increasing number of diagnosed atopy and skin problems have been observed. For people affected by the problem of atopy, the selection of skin care products, including cosmetics, is extremely important. Cleansing cosmetics, due to their ability to cause skin irritations and disturb the hydrolipidic barrier, can increase problems with atopic skin. New solutions to reduce the effects of these products on the skin are very important. In this work, the effect of ectoine on the properties of anionic surfactants was analyzed. Based on model systems, analysis of the effect of ectoine on the irritating effect of four anionic surfactants and their ability to solubilize model sebum was performed. Antioxidant activity was also evaluated, and cytotoxic studies were performed on cell cultures. It was shown that the addition of ectoine to the anionic surfactant solutions improves its safety of use. After introducing ectoine to the surfactant solution, a decrease of irritant potential (about 20%) and a decrease in the ability to solubilize of model sebum (about 10–20%) was noted. Addition of ectoine to surfactant solutions also reduced their cytotoxicity by up to 60%. The obtained results indicate that ectoine may be a modern ingredient that improves the safety of cleansing cosmetics.

At the surface of non-aqueous solutions of anionic surfactants

2011 ◽  
Vol 289 (8) ◽  
pp. 967-970 ◽  
Author(s):  
Chuangye Wang ◽  
Harald Morgner
Keyword(s):  
Aqueous Solutions ◽  
Anionic Surfactants

Recovery of carotenoids from brown seaweeds using aqueous solutions of surface-active ionic liquids and anionic surfactants

2018 ◽  
Vol 196 ◽  
pp. 300-308 ◽  
Author(s):  
Flávia A. Vieira ◽  
Ricardo J.R. Guilherme ◽  
Márcia C. Neves ◽  
Andreia Rego ◽  
Maria H. Abreu ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Anionic Surfactants ◽  
Brown Seaweeds ◽  
Surface Active

Interaction between anionic surfactants and oil dyes in the aqueous solutions

1985 ◽  
Vol 104 (1) ◽  
pp. 228-233 ◽  
Author(s):  
Masahiko Abe ◽  
Mitsuo Ohsato ◽  
Takanobu Kawamura ◽  
Keizo Ogino
Keyword(s):  
Aqueous Solutions ◽  
Anionic Surfactants

Identification of Electrolytes in Aqueous Solutions from Near-IR Spectra

1996 ◽  
Vol 50 (4) ◽  
pp. 444-448 ◽  
Author(s):  
Jie Lin ◽  
Jing Zhou ◽  
Chris W. Brown
Keyword(s):  
Aqueous Solutions ◽  
Ir Spectra ◽  
Principal Component Regression ◽  
Principal Component ◽  
Transition Metal Ions ◽  
Water Molecules ◽  
Spectral Library ◽  
Dipole Interactions ◽  
Near Ir ◽  
Solutions Of Electrolytes

Dissolution of electrolytes causes characteristic changes in the near-IR spectrum of water. These changes result from a decrease in the concentration of water; charge-dipole interactions between ions and water molecules; formation of hydrogen bonds between oxygen or nitrogen atoms in some ions and water molecules; production of H+ and OH− ions from dissociation and hydrolysis; absorptions due to OH, NH, and CH groups in some ions; and intrinsic colors of some transition metal ions. Changes in spectra were used for identification of electrolytes in aqueous solutions. Near-IR spectra of 71 solutions of single electrolytes were measured and used to develop a spectral library. This near-IR spectral library was processed with principal component regression (PCR) and used for the identification of single and multiple electrolytes in aqueous solutions with the use of their spectra. Most of the unknown electrolytes were identified correctly. For the others, very similar electrolytes were selected with one ion identified correctly. The near-IR spectral library of aqueous solutions of electrolytes can be used as a simple and fast approach for the identification of electrolytes.

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