Results 131 to 140 of about 7,856 (304)

Propriétés de surface de quelques huiles de silicones

open access: yes, 2017
Description d’un appareil permettant l’étude, dans un large domaine de températures, des propriétés superficielles de liquides visqueux par la méthode de pression maximum de bulle.
Paulette Berthier   +2 more
core   +1 more source

A Super‐Adhesive Air Filter With Capillarity‐Mediated Spontaneous Particle Absorption via Dynamic Bond Exchange

open access: yesAdvanced Materials, EarlyView.
We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park   +11 more
wiley   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

open access: yesAdvanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar   +15 more
wiley   +1 more source

Nouvelles voies de synthèses de matériaux silicones

open access: yes, 2007
Cette thèse avait pour but de synthétiser un silicone hybride de forte masse molaire afin d'obtenir, après réticulation, un élastomère présentant une résistance accrue aux solvants et une très bonne tenue thermique. Une étude bibliographique préliminaire
LONGUET, Claire, GANACHAUD, François
core  

An antifungal coating for dental silicones composed of chlorhexidine nanoparticles

open access: yes, 2015
OBJECTIVES: The aims of this study were to synthesise a range of chlorhexidine-containing nanoparticles (CHX-NPs), and investigate the feasibility of using these as an antifungal coating for dental silicones.METHODS: CHX-NPs were precipitated in aqueous ...
Barbour, Michele E   +3 more
core   +1 more source

Leaf‐Inspired Eutectic Skin With Extreme Fatigue Resistance and Robust Wet Adhesion for Amphibious Epidermal Electronics

open access: yesAdvanced Materials, EarlyView.
Inspired by Acorus calamus leaves, a heterogeneous eutectic skin integrates an aligned fibrous network within a hydrophobic eutectogel matrix. This hierarchical architecture triggers strain‐induced crystallization to achieve exceptional mechanical toughness and durable wet adhesion.
Jiayu Hou   +16 more
wiley   +1 more source

Étude des propriétés rhéologiques et de vulcanisation des élastomères silicones bi-composants

open access: yes, 2013
La transformation des élastomères silicones bi-composants comprend généralement le mélangeage de la silicone base - composant A et l’agent catalyseur - composant B, le dégazage sous vide, le remplissage du moule, la vulcanisation à une température ...
GELIN, Jean-Claude   +3 more
core  

Effectiveness of Silica Coatings in Enhancing Resin Cement Adhesion to Zirconia: A Systematic Review

open access: yesDentistry Journal
Background: The use of zirconia-based restorations has increased in dentistry due to their aesthetics, high strength, and biocompatibility. However, achieving durable adhesion between resin cements and zirconia remains a challenge in restorative ...
Laura C. Lara-Hernández   +2 more
doaj   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

open access: yesAdvanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim   +5 more
wiley   +1 more source

Viscoelastic properties of Silastic medical grade silicones

open access: yes, 2009
Cylinders (29 mm in diameter and 13 mm thick) of medical grade silicone elastomers intended for medium-term implantation (up to 90 days), were immersed in physiological saline solution at 37 degrees C, and investigated by dynamic mechanical analysis (DMA)
Mahomed, Aziza   +2 more
core  

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