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In vivo anti-ageing activity of cream containing niosomes loaded with purple glutinous rice (Oryza sativa Linn.) extract / J. Manosroi in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 6 (12/2020)
[article]
Titre : In vivo anti-ageing activity of cream containing niosomes loaded with purple glutinous rice (Oryza sativa Linn.) extract Type de document : document électronique Auteurs : J. Manosroi, Auteur ; C. Chankhampan, Auteur ; W. Kitdamrongtham, Auteur ; J. Zhang, Auteur ; M. Abe, Auteur ; T. Akihisa, Auteur ; W. Manosroi, Auteur ; A. Manosroi, Auteur Année de publication : 2020 Article en page(s) : p. 622-631 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti tyrosinase
Antiâge
Antioxydants
Cosméceutique
Etude in vivo
Niosomes
Peau -- Soins et hygiène
Riz et constituants
StatistiqueIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : To evaluate the anti-ageing activity of cream containing the methanolic purple glutinous rice extract loaded in niosomes.
- Methods : The in vitro biological activities of the purple glutinous rice extracted by methanol maceration were determined. The extract loaded in niosomes and the cream containing the niosomes were developed. The in vivo anti-ageing activity in 20 human volunteers including skin hydration, pigmentation, roughness and elasticity after daily application for 28 days compared to at initial was evaluated by Corneometer, Mexameter, Visiometer and Cutometer, respectively.
- Results : The purple glutinous rice extract showed free radical scavenging (SC50), lipid peroxidation inhibition (IPC50), metal ion chelating (CC50) and tyrosinase inhibition (IC50) values at 32.31 ± 1.28, 57.40 ± 2.12, 85.05 ± 5.43 and 43.89 ± 2.14 mg/mL which were 0.00031, 0.011, 0.0078 and 0.0016 times of the standards (0.01 ± 0.00, 0.62 ± 0.14, 0.66 ± 0.05 and 0.07 ± 0.01), respectively. The purple glutinous rice extract contained 0.35 µg of anthocyanin/1 mg of the extract determined by HPLC. After loaded in niosomes, the solubility of the extract was not only increased in various solvents, but also the chemical stability in different environments (weak base, reducing agent and acid salt) was improved. The cream formulation containing niosomes loaded with 1%w/v of the purple glutinous rice extract indicated the anthocyanin remaining percentages after 6 cycles of heating and cooling test at 52.28% of the initial. For in vivo anti-ageing activities, cream containing niosomes loaded with the extract gave significant decreased melanin index and skin roughness reduction of −14.05 and −9.95% of the initial, respectively. The % changes of the increased skin hydration, skin elastic extension and skin elastic recovery when applied on human volunteers’ skin with this formulation were +48.73, -24.51 and +35.98%, respectively.
- Conclusion : The cream containing niosomes loaded with the 1%w/v methanolic purple glutinous rice extract gave not only the suitable in vitro antioxidant activity and physical stability of the active anthocyanin, but also the superior in vivo anti-ageing activity on human skin compared to the cream base and before application which can be further developed as a novel anti-ageing cosmeceutical product.Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of the purple glutinous rice extract - Antioxidant activities - Tyrosinase inhibition assay - Physical characteristics of the niosomal dispersion - Preparation of cream containing niosomes loaded with the purple glutinous rice extract - Anti-ageing activities in human volunteers of cream containing niosomes loaded with the purple glutinous rice extract - Statistical analysis
- RESULTS AND DISCUSSION : Antioxidant activities of the purple glutinous rice extract - Characteristics of niosomes loaded with the purple glutinous rice extract - Physical characteristics of cream containing niosomes loaded with the purple glutinous rice extract - Anti-ageing activities in human volunteers of cream containing niosomes loaded with the purple glutinous rice extractDOI : https://doi.org/10.1111/ics.12658 En ligne : https://drive.google.com/file/d/1tZ9AG6JtucAx9VZbquCRTcHbUJk6iU27/view?usp=shari [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35429
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 42, N° 6 (12/2020) . - p. 622-631[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Numerical simulation of fine droplets formation process in beadless disperser / X. F. Zhang in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B4 (12/2006)
[article]
Titre : Numerical simulation of fine droplets formation process in beadless disperser Type de document : texte imprimé Auteurs : X. F. Zhang, Auteur ; M. Abe, Auteur ; K. Takebayashi, Auteur ; M. Tsutahara, Auteur ; M. Enomura, Auteur Année de publication : 2006 Article en page(s) : p. 269-274 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Boltzmann sur réseau, Méthode de La méthode de Boltzmann sur réseau est une méthode de dynamique des fluides (CFD). À la place des équations de Navier-Stokes, l'équation discrète de Boltzmann est résolue pour simuler à une échelle mésoscopique le comportement de fluides newtoniens et non newtoniens à l'aide d'un schéma de collision-propagation. Par la simulation de ce procédé de collision et de propagation, il est possible de reproduire des comportements complexes de fluides.
Couches minces
Désintégration
Différences finies, Méthode desEn analyse numérique, la méthode des différences finies est une technique courante de recherche de solutions approchées d'équations aux dérivées partielles qui consiste à résoudre un système de relations (schéma numérique) liant les valeurs des fonctions inconnues en certains points suffisamment proches les uns des autres.
Cette méthode apparaît comme étant la plus simple à mettre en œuvre car elle procède en deux étapes : d'une part la discrétisation par différences finies des opérateurs de dérivation/différentiation, d'autre part la convergence du schéma numérique ainsi obtenu lorsque la distance entre les points diminue.
Disperseurs
Emulsions
Formation de gouttelettes
Simulation par ordinateurIndex. décimale : 667.9 Revêtements et enduits Résumé : The deformation and breakup of a droplet in two-phase shear flow were simulated by the finite difference lattice Boltzmann method (FDLBM). The fine droplets formation process was investigated in a beadless disperser using ultrathin film and high shear (ultrathin film high-shear disperser, UFHD). As a result, the critical capillary number,C ac,was found at a constant Reynolds number,R e.The necessary condition for the creation of fine droplets in the disperser was that the capillary numberC a>C ac.The atomisation ability of the disperser was discussed based onC ac.The simulation results demonstrated that the disperser can be used to prepare nanometre-size droplets. Note de contenu : - NUMERICAL SIMULATION METHOD : Basic equations of the finite difference Lattice Boltzmann method (FDLBM) for binary fluids - Calculation model
- NUMERICAL SIMULATION RESULTS AND DISCUSSION
- ATOMISATION ABILITY OF UFHDDOI : 10.1007/BF02765578 En ligne : https://link.springer.com/content/pdf/10.1007/BF02765578.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5267
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Code-barres Cote Support Localisation Section Disponibilité 006010 - Périodique Bibliothèque principale Documentaires Disponible Numerical simulation of flows in beadless disperser by finite difference lattice Boltzmann method / X. F. Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 1 (03/2007)
[article]
Titre : Numerical simulation of flows in beadless disperser by finite difference lattice Boltzmann method Type de document : texte imprimé Auteurs : X. F. Zhang, Auteur ; M. Enomura, Auteur ; M. Tsutahara, Auteur ; K. Takebayashi, Auteur ; M. Abe, Auteur Année de publication : 2007 Article en page(s) : p. 13-19 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Disperseurs
Dispersions et suspensions
Emulsions
Gouttelettes
Nanoparticules
Rhéologie
Simulation par ordinateurTags : Finite difference lattice Boltzmann method Dispersion Emulsion Beadless disperser Disintegration Droplet Ultra-thin film high-shear Nanoparticle Index. décimale : 667.9 Revêtements et enduits Résumé : A new beadless disperser, an ultra-thin film high-shear disperser (UFHD), was developed, and the flow in its dispersion part (a flow between rotating and stationary rings) was simulated using the finite difference lattice Boltzmann method (FDLBM). The efficiency of the FDLBM for this kind of flow field was verified. The FDLBM possesses some distinctive features such as relatively easy implementation of boundary conditions in complicated geometries, high efficiency in parallel processing, and flexible reproduction of the interface between multiple phases, that make the method very suitable for simulating complex flows in the disperser, in which the fluid consists of a mixture of solvent and particles, and the deformation, breakup and coalescence of suspended particles occur. It was shown that the performance of the disperser can easily be simulated and elucidated by the FDLBM. DOI : 10.1007/s11998-007-9005-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9005-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3666
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 4, N° 1 (03/2007) . - p. 13-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007149 - Périodique Bibliothèque principale Documentaires Disponible 008267 - Périodique Bibliothèque principale Documentaires Disponible