Accueil
Détail de l'auteur
Auteur Masato Yoshioka |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
A new nonionic ascorbic acid derivative / Takeshi Nagata in PERSONAL CARE EUROPE, Vol. 7, N° 1 (02/2014)
[article]
Titre : A new nonionic ascorbic acid derivative Type de document : texte imprimé Auteurs : Takeshi Nagata, Auteur ; Yoshiki Yamaguchi, Auteur ; Toshiya Tsujino, Auteur ; Shinobu Ito, Auteur ; Takahiro Fujimoto, Auteur ; Masato Yoshioka, Auteur Année de publication : 2014 Article en page(s) : p. 36-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge
Antibactériens
Biomolécules actives
Composés amphiphiles
Cosmétiques
Fibroblastes
Ingrédients cosmétiques
Peau -- Soins et hygiène
Tests de toxicité
Vitamine CIndex. décimale : 668.5 Parfums et cosmétiques Résumé : In cosmetic products, ascorbic acid derivatives are widely used, because of the instability of ascorbic acid (AsA) (called vitamin C as its alias). As a new nonionic and amphiphilic ascorbic-acid derivative, 2-glyceryl-3-octyl ascorbate (GO-VC), which is synthesised by introducing an octyl and a glyceryl group into ascorbic acid structure, has been recently developed. Due to its unique chemical structure, in addition to the effects of AsA, GO-VC is expected to have a humectant effect derived from glycerin and an anti-bacterial property derived from octanol, and also is highly likely to have a fibroblast activation ability, and a melanogenesis-suppressing and skin pore and wrinkle improving effect. GO-VS's safety tests, which include a human skin-sensitivity test [repeat insult patch test (RIPT)], ocular irritation test [bovine corneal opacity and permeability (BCOP) assay], genetic toxicity (Ames test), and clinical human skin patch test, have been performed, confirming the safety of GO-VC. Note de contenu : - FUNCTIONS OF GO-VC : The fibroblast proliferating ability of GO-VC - The melanogenesis-suppressing ability of GO-VC - The result of closed patch test of GO-VC - The beautifying effect of GO-VC Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20469
in PERSONAL CARE EUROPE > Vol. 7, N° 1 (02/2014) . - p. 36-38[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 15949 - Périodique Bibliothèque principale Documentaires Disponible The characteristics of a microcapsule made entirely from a new silicone-resign-polypeptide and its application / Yuka Ueda in IFSCC MAGAZINE, Vol. 6, N° 2 (04-05-06/2003)
[article]
Titre : The characteristics of a microcapsule made entirely from a new silicone-resign-polypeptide and its application Type de document : texte imprimé Auteurs : Yuka Ueda, Auteur ; Akihiro Segawa, Auteur ; Masato Yoshioka, Auteur Année de publication : 2003 Article en page(s) : p. 111-116 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Microcapsule 'Absorbeurs UV' Encapsulation Silicone 'Produit de protection solaire' Index. décimale : 668.5 Parfums et cosmétiques Résumé : A new method was developed to prepare microcapsules involving hydrophobic components and a totally new silicone-resin-polypeptide material used as the encapsulating body, where the polypeptide was made by hydrolysis of collagen and silk protein combined with silicone. This microcapsule was easily prepared from a silicone-resin-polypeptide in water solution. Not only was the extent of encapsulation in the micro-capsule as high as 90% (which has never been reached) but also the particle size was also homogeneous and could be sufficiently controlled to obtain very small sizes. Moreover, these microcapsules were resistant to relatively high shear forces and were stable over a long time period.
Application in cosmetics by using the UV absorbers (2-ethylhexyl-4-methoxycinnamate (EHMC) and 4-tert-butyl-4'-methoxy-dibenzoylmethane (BMDBM)) as the encapsulated ingredients was examined. Because the polymer acts like as surfactant itself, it was possible to apply organic UV absorbers in water-rich formulations without any surfactant. This formulation demonstrated a good moisturizing and soft skin feel. In addition, since the microcapsules were easily mixed with inorganic compounds like titanium dioxide and zinc oxide, the amount of their dispersants could be reduced to maintain a high SPF value. As a result, it was concluded that such microcapsules might be widely applied in cosmetics.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10595
in IFSCC MAGAZINE > Vol. 6, N° 2 (04-05-06/2003) . - p. 111-116[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 003879 - Périodique Bibliothèque principale Documentaires Disponible