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Effects of adding TiO2 nanoparticles to a water-based varnish for wood applied to nine tropical woods of Costa Rica exposed to natural and accelerated weathering / Róger Moya in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
[article]
Titre : Effects of adding TiO2 nanoparticles to a water-based varnish for wood applied to nine tropical woods of Costa Rica exposed to natural and accelerated weathering Type de document : texte imprimé Auteurs : Róger Moya, Auteur ; Ana RodrÃguez-Zúñiga, Auteur ; José Vega-Baudrit, Auteur ; Allen Puente-Urbina, Auteur Année de publication : 2017 Article en page(s) : p. 141-152 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bois -- Finition
Bois -- Revêtements protecteurs
Caractérisation
Diffractométrie de rayons X
Dioxyde de titane
Essais d'adhésion
Humidité -- Absorption:Eau -- Absorption
Nanoparticules
Nanotechnologie
Protection contre le rayonnement ultraviolet
Statistique
Traîtements de surface
Vernis en phase aqueuse
vision des couleursIndex. décimale : 667.9 Revêtements et enduits Résumé : The addition of titanium dioxide nanoparticles (TiO2 nanoparticles) to a water-based varnish used for finishing tropical woods was studied. Three different concentrations of TiO2 nanoparticles (0%, 1.0%, and 1.5%) were evaluated. The nanoparticles were characterized by means of the transmission electron microscopy and an X-ray diffractometer. The varnish prepared was evaluated for its viscosity, adhesion of the film to the wood, water absorption, and the effects of natural weathering on the color and quality of the varnish. It was found that viscosity decreases as the concentration of TiO2 nanoparticles increases, while no variation was found in the thickness of the film. Except for Gmelina arborea and Tectona grandis, the adhesion was not statistically affected. It was found that, in the 9 species tested, incorporation of TiO2 nanoparticles decreased the values of water absorption. The evaluation of natural weathering showed that the varnish with no added TiO2 nanoparticles degraded completely after 1 year of weathering exposure, while the modified varnish film endured. Less color change was observed in lumber treated with the varnish containing TiO2 nanoparticles. The best performance of the varnish in the nine tropical woods used was observed when TiO2 nanoparticles were added at 1.5% concentration. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of the coating with TiO2 nanoparticles - Characterization of the varnish - Wood species, surface preparation, and application of coating - Dry film thickness, adhesion test, and water absorption - UV protection determination - Wood color evaluation - Statistical anaysis
- RESULTS AND DISCUSSION : Characterization of the coating - Water absorption - UV protection determination - Color changeEn ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9848-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27796
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 1 (01/2017) . - p. 141-152[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18674 - Périodique Bibliothèque principale Documentaires Disponible Extraction of juglone from Pterocarya fraxinifolia leaves for dyeing, anti-fungal finishing, and solar UV protection of wool / Izadyar Ebrahimi in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)
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Titre : Extraction of juglone from Pterocarya fraxinifolia leaves for dyeing, anti-fungal finishing, and solar UV protection of wool Type de document : texte imprimé Auteurs : Izadyar Ebrahimi, Auteur ; Mazeyar Parvinzadeh Gashti, Auteur Année de publication : 2015 Article en page(s) : p. 451-457 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antifongiques
Chélates
Colorants végétaux
Extraction (chimie)
Laine
Produits naturels
Protection contre le rayonnement ultraviolet
Sels métalliques
Solidité de la couleur
Teinture -- Fibres textiles
Textiles et tissus -- FinitionIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In many countries, the search for new sources of natural colourants has recently been intense. This paper deals with the extraction procedure, dyeing behaviour, antifungal activity, and ultraviolet protection of Pterocarya fraxinifolia as a new natural source of dyes. Juglone was found as the main extracted compound after characterisation by ultraviolet-visible spectrophotometry and Fourier transform infrared spectroscopy. Mordanting and subsequent dyeing of wool with extracted juglone were then performed to study the dyeability and antifungal activities. Three metal salts, aluminium sulfate, copper sulfate, and iron sulfate, were used as chelating materials. The colorimetric properties of samples were evaluated using a reflectance spectrophotometer. Furthermore, the washing and light fastness properties were tested according to ISO 105-CO3:1989 and ISO 105-B01:2014. Interestingly, we found P. fraxinifolia to be a source of strong antifungal compounds against microorganisms. Extracted juglone also exhibited strong protection activity against solar ultraviolet rays. Note de contenu : - Ultraviolet absorption by extracted juglone
- Assessment of extracted juglone and samples by Fourier transform infrared spectroscopy
- Evaluation of wool dyeability
- Colour fastness properties
- Antifungal assessment
- Influence of natural dyeing on ultraviolet protection of woolDOI : 10.1111/cote.12180 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12180 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25092
in COLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 451-457[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17685 - Périodique Bibliothèque principale Documentaires Disponible Extremophile cells offer UV stress protection / Jasmin Lozza in PERSONAL CARE EUROPE, Vol. 8, N° 3 (04/2015)
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Titre : Extremophile cells offer UV stress protection Type de document : texte imprimé Auteurs : Jasmin Lozza, Auteur ; Daniel Schmid, Auteur ; Frank Gafner, Auteur Année de publication : 2015 Article en page(s) : p. 86-87 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques
Extraits de plantes:Extraits (pharmacie)
Peau -- Soins et hygiène
Produits antisolaires
Protection contre le rayonnement ultravioletIndex. décimale : 668.5 Parfums et cosmétiques Résumé : The high Alpine plant Saponarla pumila is a survival specialist. It weathered the lest ice age growing on ice-free mountain peaks, so-called nunataks exposed to constantly low temperatures and high levels of UV radiation. To tope with a harsh environment S. pumila developed adaption strategies, repair mechanisms and protective compounds. These precious substances have now become available for skin care. An extract made from callus cells of S. pumila was shows in vitro to protect dermal stem cells against UV-induced stress and to maintain their stem tell properties. Note de contenu : - PROTECTIVE EFFECT : S. pulila on human dermal progenitor cells against UV-induced stress
- PRE-TREATMENT OF THE SKIN : S. pumila fortified cream protects against stressful conditions during beach holidays
- IMPROVED DERMAL TISSUE STRUCTUREEn ligne : https://drive.google.com/file/d/1sPL487100zz2Otxikm0gB2Et5S4cqnpC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23704
in PERSONAL CARE EUROPE > Vol. 8, N° 3 (04/2015) . - p. 86-87[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17131 - Périodique Bibliothèque principale Documentaires Disponible Fabrication of multifunctional smart polyester fabric via electrochemical deposition of ZnO nano-/microhierarchical structures / U. G. Mihiri Ekanayake in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
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Titre : Fabrication of multifunctional smart polyester fabric via electrochemical deposition of ZnO nano-/microhierarchical structures Type de document : texte imprimé Auteurs : U. G. Mihiri Ekanayake, Auteur ; K. E. D. Y. Taniya Dayananda, Auteur ; Nadeesha Rathuwadu, Auteur ; M. M. M. G. Prasanga G. Mantilaka, Auteur Année de publication : 2022 Article en page(s) : p. 1243-1253 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Capteurs (technologie)
Couches minces
Dépôt électrolytique
Electrochimie
Hydrophobie
Matériaux intelligents
Oxyde de zinc
Photochimie
Polyesters
Protection contre le rayonnement ultraviolet
Textiles et tissus synthétiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Advanced multifunctional surfaces are widely used due to their unique surface properties and widespread applications. Developing a multifunctional fabric with a low cost, fluorine-free, and easily controllable method is a great challenge. This paper reports a multifunctional fabric with conductive, UV blocking, superhydrophobic and photosensing properties via an electrodeposition method. ZnO nano-/microarchitectures have been electrodeposited on polyester fabric with a carbon black screen-printed conductive layer. The deposition was carried out in various operating parameters. The optimized conditions for the ZnO electrodeposition are at − 1.0 V for 30 min deposition time in 5 mM Zn(NO3)2 in 0.1 M KNO3 at room temperature. The developed fabric showed 100% UV radiation blocking and a water contact angle (WCA) of 156° after self-assembly of stearic acid on the ZnO layer. The modified fabric showed fast photoresponse as a photosensor, which indicates that this can be used as flexible wearable photosensors in practical applications. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of the conductive fabric (CF) - Deposition of ZnO nanostructures - Depositing superhydrophobic layer - Characterization techniques
- RESULTS AND DISCUSSION : Electrochemical deposition of ZnO - Elemental analysis - Evaluation of superhydrophobic property - Evaluation of the UV blocking property - Evaluation of the photosensing propertyDOI : https://doi.org/10.1007/s11998-021-00606-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00606-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38051
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 4 (07/2022) . - p. 1243-1253[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23574 - Périodique Bibliothèque principale Documentaires Disponible Facial skin ageing : Key concepts and overview of processes / David Zargaran in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 44, N° 4 (08/2022)
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Titre : Facial skin ageing : Key concepts and overview of processes Type de document : document électronique Auteurs : David Zargaran, Auteur ; Florence Zoller, Auteur ; Alexander Zargaran, Auteur ; Tim Weyrich, Auteur ; Afshin Mosahebi, Auteur Année de publication : 2022 Article en page(s) : p. 414-420 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dermo-cosmétologie
Hydratation
Peau -- Anatomie
Peau noire -- Physiologie
Produits antisolaires
Protection contre le rayonnement ultraviolet
Vieillissement cutané
Visage -- Soins et hygièneIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Introduction : The face is a cosmetically sensitive region where the process of ageing is most clearly manifested. With increased focus on anti-ageing and longevity, more anti-senescent treatments are being proposed despite limited evidence. This study outlines the pathways and mechanisms underpinning the biological process of ageing in the face.
- Methods : Comprehensive searches of MEDLINE, EMBASE, Cochrane Library and CINAHL from inception to 2020. Inclusion criteria included all empirical human research studies specific to facial ageing features, written in the English language.
Results : A total of 65 papers met inclusion criteria for analysis. Pathways were subdivided into intrinsic and extrinsic senescence mechanisms. Intrinsic pathways included genetics, generation of reactive oxygen species and hormonal changes. Extrinsic pathways included photoageing and damage to skin layers. The combined intrinsic and extrinsic pathway alterations result in wrinkles, higher laxity, slackness and thinning of the skin. Skin functions such as barrier immune function, wound healing, thermoregulation and sensory function are also impaired.
- Conclusion : The ageing process is unique to the individual and depends on the interplay between an individual's genetics and external environmental factors. Through understanding the molecular and cellular mechanisms, an appreciation of the consequent structural and functional changes can be achieved. Based on this knowledge, further research can focus on how to slow or impede the ageing process and identify specific targets to develop and evolve new treatment strategies.Note de contenu : - BACKGROUND : Genetic alterations - Reactive oxygen species (ROS) and free radicals - Hormones
- SKIN AGEING : Extracellular matrix components - Photoageing - Epidermis - Dermo-epidermal junction - Dermis
- FAT, CARTILAGE, BONE AND MUSCULAR TISSUE : Fat - Cartilage and bone - MusclesDOI : https://doi.org/10.1111/ics.12779 En ligne : https://drive.google.com/file/d/19oMiISUsdI1aNFzafsHYvjv8ZqQdzP_l/view?usp=shari [...] Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38141
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 44, N° 4 (08/2022) . - p. 414-420[article]Fermented bioactive for versatile anti-ageing / Xiaotong Yuan in GLOBAL PERSONAL CARE, Vol. 25, N° 1 (01/2024)
PermalinkForearm skin aging : characterization by instrumental measurements / Paula Roberta Silva de Carvlho in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 39, N° 5 (10/2017)
PermalinkFunctional and antimicrobial properties of herbal nanocomposites from Piper betle plant leaves for enhanced cotton fabrics / Karthik Subramani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
PermalinkGel-sol synthesis of surface-treated TiO2 nanoparticles and incorporation with waterborne acrylic resin systems for clear UV protective coatings / Changfeng Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 5 (09/2014)
PermalinkPermalinkImproved protective clothing for welders with nanoparticles / Léonie Kamps in TECHNICAL TEXTILES, Vol. 65, N° 4 (10/2022)
PermalinkInnovative sunscreen with cooling effect for protection in the VIS and NIR regions for Asian skin type / Alexandra Lan in SOFW JOURNAL, Vol. 144, N° 10 (10/2018)
PermalinkInvestigation of EMI and UV-IR shielding properties of wool and cotton/elastane nanocomposite fabrics / Ilhami Ilhan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
PermalinkLife line for wood / Daniel Rogez in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 193, N° 4465 (06/2003)
PermalinkLutter contre les agressions environnementales qui fragilisent la peau au quotidien / Alexandra Fievez in EXPRESSION COSMETIQUE, N° Hors série (12/2014)
PermalinkPermalinkMicroarray profiling of gene expression in human keratinocytes suggests a new protective activity against UV-induced DNA damage for a compound previously known to interact with SCF-KIT signalling pathway / C. Serre in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 33, N° 5 (10/2011)
PermalinkMintMC booste l'auto-défense de la peau aux rayons UV / Adriano Fasolo in EXPRESSION COSMETIQUE, N° Hors série (12/2012)
PermalinkModification of cotton fabrics with a hydrolysed organotrialkoxysilane/metal alkoxide system: multifunctionalisation and mordant dyeing / Christian Schramm in COLORATION TECHNOLOGY, Vol. 133, N° 3 (06/2017)
PermalinkNanoparticles for UV protection of clear wood coatings - field and laboratory trials / Stig L. Bardage in SURFACE COATINGS INTERNATIONAL, Vol. 96, 2 (04/2013)
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