α-Gel (α-Form Hydrated Crystal) Prepared by Eco-Friendly Cationic Surfactant

Saito, Takanori; Ishii, Rina; Akamatsu, Masaaki; Sakai, Tomomi; Sakai, Kenichi; Sakai, Hideki

doi:10.5650/jos.ess20094

J. Oleo Sci.

2020

DOI: 10.5650/jos.ess20094

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α-Gel (α-Form Hydrated Crystal) Prepared by Eco-Friendly Cationic Surfactant

Takanori Saito

Rina Ishii

Masaaki Akamatsu

et al.

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Cited by 4 publications

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“…docosanamide APA-22 acid salt is an eco-friendly cationic surfactant 14 and is expected to be a potential ingredient in environment-friendly hair conditioners. Previously, we characterized the structure and properties of α-gels consisting of the APA-22 L-lactic acid salt APA-22 L-lactic acid , 1-octadecanol C 18 OH , and water 9,15 . One of the key findings was that the crystal growth theory predicted the α-gel domain size, that is, a low rate of cooling and/or low stirring speed during the preparation of α-gel increased the domain size and viscosity of the diluted α-gel system 9 .…”

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Adsorption and Lubrication of α-Gel (α-Form Hydrated Crystal) Dispersion at Solid/Liquid Interfaces

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IntroductionMixtures of surfactant, long-chain alcohol, and water can yield a lamellar gel below the gel-liquid crystal phase transition temperature T C . The assembly called α-gel or α-form hydrated crystal is a type of lamellar gel; i.e., the alkyl chains of surfactant and long-chain alcohol molecules are hexagonally packed within bilayers in the lamellar gel network 1 3 . α-Gels can contain a large amount of water in the spaces not only between the lamellar bilayers, but also between onion-like or vesicular domains 4,5 . The viscoelasticity of the α-gel was largely affected by the amount of water localized in these spaces. Furthermore, the viscoelasticity of α-gel can be controlled by the domain shape 6 8 , domain size 9 , and background electrolyte concentration 10,11 . α-Gel is widely used in cream-like personal care products such as hair conditioners. Cationic surfactants are used in hair conditioners owing to their ability to adsorb onto hair surfaces 12,13 . The N-3-dimethylamino propyl

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Adsorption and Lubrication of α-Gel (α-Form Hydrated Crystal) Dispersion at Solid/Liquid Interfaces

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α-tending emulsifiers, microencapsulated improver powder and bakery applications

Suhag

Dhiman

2022

J Food Sci Technol

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Lamellar gel containing emulsions as an effective carrier for stabilization and transdermal delivery of retinyl propionate

Yang

Yan²,

Yu³

et al. 2023

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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α-Gel (α-Form Hydrated Crystal) Prepared by Eco-Friendly Cationic Surfactant

Cited by 4 publications

References 18 publications

Adsorption and Lubrication of α-Gel (α-Form Hydrated Crystal) Dispersion at Solid/Liquid Interfaces

Adsorption and Lubrication of α-Gel (α-Form Hydrated Crystal) Dispersion at Solid/Liquid Interfaces

α-tending emulsifiers, microencapsulated improver powder and bakery applications

Lamellar gel containing emulsions as an effective carrier for stabilization and transdermal delivery of retinyl propionate

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