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Influence of VIS/NIR radiation on the characteristics of sunscreens and human skin / M. Brandt in IFSCC MAGAZINE, Vol. 4, N° 1 (01-02-03/2001)
[article]
Titre : Influence of VIS/NIR radiation on the characteristics of sunscreens and human skin Type de document : texte imprimé Auteurs : M. Brandt, Auteur ; M. Rohr, Auteur ; Annika Schrader, Auteur Année de publication : 2001 Article en page(s) : p. 15-19 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Formulation (Génie chimique)
Peau -- Effet du rayonnement infrarouge
Peau -- Effet du rayonnement ultraviolet
Peau -- Effets du rayonnement solaire
Produits antisolairesTags : 'Colipa method' 'Sun protection factor (SPF) measurement' 'VIS/NIR radiation' MEDu Reflectance Transmission 'Spectral stability' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Natural sunlight has a high intensity in the visible and infrared spectral range previously ignored in methods used for determination of the sun protection factor. In these method the spectral range is defined only as the UVB/UVA range. The purpose of the studies presented below is to determine the influence of VIS/NIR radiation on the minimal erythemal dose of untreated skin and the sun protection factor as well as the spectral stability of sunscreen formulations. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10760
in IFSCC MAGAZINE > Vol. 4, N° 1 (01-02-03/2001) . - p. 15-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 004651 - Périodique Bibliothèque principale Documentaires Disponible Testing the Discriminative Capacity of Compartmental Modeling for the Analysis of the In-Vivo Epidermal Water Content Changes Following Topical Application under Occlusion / Pedro Contreiras Pinto in IFSCC MAGAZINE, Vol. 5, N° 2 (04-05-06/2002)
[article]
Titre : Testing the Discriminative Capacity of Compartmental Modeling for the Analysis of the In-Vivo Epidermal Water Content Changes Following Topical Application under Occlusion Type de document : texte imprimé Auteurs : Pedro Contreiras Pinto, Auteur ; Luis Marcelo Pereira, Auteur ; Rui Minhos, Auteur ; Luis Monteiro Rodrigues, Auteur Année de publication : 2002 Article en page(s) : p. 87-92 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Skin hydration' 'efficacy testing' 'mthematical modeling' POST 'in-vivo measurement' evaporation 'dynamic water loss' TEWL Index. décimale : 668.5 Parfums et cosmétiques Résumé : Mathematical modeling of cutaneous variables is an attratictive strategy to meet the compex nature of in-vivo skin, especially in the presence of an external stimulus such as a topical product. Despite the oversimplification implied, meeting the conceptualization of the model with the representative (physiological) variables is still a major difficulty, often impairing the model validity.
Once achieved, however, its applicability will mostly depend on the demonstration of the accuracy and practicability of the model. In previous works, the authors developed a bi-compartmental model designed to dynamically describe the Trans-epidermal water loss(TEWL) curves obtained in-vivo from the Plastic Occlusion Stress Test (POST) methodology. Occlusion was performed in healthy human volunteers (n=10) occluded with either 10% glycerin in water solution or water alone. Desorption curves allowed to obtain kinetic parameters such as k(evap)(the water evaporation rate at skin surface), t1/2 evap(the evaporation half-life), and DWM (the dynamic water mass) allowing a detailed quantitative description of the hydration process. Results demonstrate that the proposed model is adequate to identify significant differences (p<0.05) between the curve profiles, revealing the different hydration mechanisms involved, and suggesting an interesting application potential for the substantiation and efficacy testing of cosmectics.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10649
in IFSCC MAGAZINE > Vol. 5, N° 2 (04-05-06/2002) . - p. 87-92[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003874 - Périodique Bibliothèque principale Documentaires Disponible