scholarly journals Oleic Acid-Based Gemini Surfactants with Carboxylic Acid Headgroups

2011 ◽  
Vol 60 (8) ◽  
pp. 411-417 ◽  
Author(s):  
Kenichi Sakai ◽  
Naoki Umemoto ◽  
Wataru Matsuda ◽  
Yuichiro Takamatsu ◽  
Mutsuyoshi Matsumoto ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Carboxylic Acid ◽  
Gemini Surfactants

Synthesis and Properties of Two Amino Carboxylic Acid Gemini Surfactants

2020 ◽  
Vol 23 (6) ◽  
pp. 1033-1041
Author(s):  
Libo Xu ◽  
Zhirong He ◽  
Fu Han ◽  
Yawen Zhou ◽  
Baocai Xu
Keyword(s):  
Carboxylic Acid ◽  
Gemini Surfactants ◽  
Amino Carboxylic Acid

Effect of inorganic and organic counterions on interfacial properties of oleic acid-based gemini surfactants

2018 ◽  
Vol 538 ◽  
pp. 73-78 ◽  
Author(s):  
Tadashi Sugahara ◽  
Yuichiro Takamatsu ◽  
Masaaki Akamatsu ◽  
Kenichi Sakai ◽  
Masahiko Abe ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Gemini Surfactants ◽  
Interfacial Properties ◽  
Inorganic And Organic

scholarly journals Physicochemical Properties of Oleic Acid-Based Partially Fluorinated Gemini Surfactants

2014 ◽  
Vol 63 (3) ◽  
pp. 257-267 ◽  
Author(s):  
Kenichi Sakai ◽  
Naoki Umemoto ◽  
Kenichi Aburai ◽  
Yuichiro Takamatsu ◽  
Takeshi Endo ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Physicochemical Properties ◽  
Gemini Surfactants

scholarly journals Quaternary Ammonium-Type Gemini Surfactants Synthesized from Oleic Acid: Aqueous Solution Properties and Adsorption Characteristics

2013 ◽  
Vol 62 (7) ◽  
pp. 489-498 ◽  
Author(s):  
Kenichi Sakai ◽  
Yuki Saito ◽  
Akihito Uka ◽  
Wataru Matsuda ◽  
Yuichiro Takamatsu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Oleic Acid ◽  
Quaternary Ammonium ◽  
Gemini Surfactants ◽  
Solution Properties ◽  
Adsorption Characteristics ◽  
Acid Aqueous Solution

scholarly journals Oleic Acid-Based Gemini Surfactants

Oleoscience ◽  
2011 ◽  
Vol 11 (9) ◽  
pp. 327-332
Author(s):  
Kenichi SAKAI ◽  
Yuichiro TAKAMATSU ◽  
Hideki SAKAI ◽  
Masahiko ABE
Keyword(s):  
Oleic Acid ◽  
Gemini Surfactants

scholarly journals Performance of Oleic Acid and Soybean Oil in the Preparation of Oil-in-Water Microemulsions for Encapsulating a Highly Hydrophobic Molecule

2021 ◽  
Vol 5 (4) ◽  
pp. 50
Author(s):  
Laura Fernández-Peña ◽  
Boutaina Z. El Mojahid ◽  
Eduardo Guzmán ◽  
Francisco Ortega ◽  
Ramón G. Rubio
Keyword(s):  
Oleic Acid ◽  
Carboxylic Acid ◽  
Soybean Oil ◽  
Size Range ◽  
Pharmaceutical Formulations ◽  
Oil In Water ◽  
Hydrophobic Molecule ◽  
The Stability ◽  
Highly Hydrophobic ◽  
Nanometric Size

This work analyzes the dispersion of a highly hydrophobic molecule, (9Z)-N-(1,3-dihydroxyoctadecan-2-yl)octadec-9-enamide (ceramide-like molecule), with cosmetic and pharmaceutical interest, by exploiting oil-in-water microemulsions. Two different oils, oleic acid and soybean oil, were tested as an oil phase while mixtures of laureth-5-carboxylic acid (Akypo) and 2-propanol were used for the stabilization of the dispersions. This allowed us to obtain stable aqueous-based formulations with a relatively reduced content of oily phase (around 3% w/w), that may enhance the bioavailability of this molecule by its solubilization in nanometric oil droplets (with a size range of 30–80 nm), that allow the incorporation of a ceramide-like molecule of up to 3% w/w, to remain stable for more than a year. The nanometric size of the droplet containing the active ingredient and the stability of the formulations provide the basis for evaluating the efficiency of microemulsions in preparing formulations to enhance the distribution and availability of ceramide-like molecules, helping to reach targets in cosmetic and pharmaceutical formulations.

The Synthesis of a Fluorescent Cholesteryl Oleate Analogue

1996 ◽  
Vol 49 (11) ◽  
pp. 1243 ◽  
Author(s):  
WM Best ◽  
BC Mortimer ◽  
TG Redgrave ◽  
RV Stick
Keyword(s):  
Oleic Acid ◽  
Carboxylic Acid ◽  
Cholesteryl Oleate

A fluorescent analogue of cholesteryl oleate , namely 22-[ethyl(2'-naphthyl)amino]-23,24-dinorchol-5-en-3β-yl oleate, has been prepared from a steroidal carboxylic acid, 2-naphthylamine and oleic acid.

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