摘要:
L'invention concerne un dispositif (1 ), ledit dispositif constituant un ballon intra-gasthque pour le traitement de l'obésité morbide ou un anneau gastrique pour le traitement de l'obésité, ledit dispositif (1 ) étant destiné à se trouver, sur au moins une fraction de sa surface, en contact avec au moins un fluide corporel lorsqu'il est implanté, ledit dispositif (1 ) étant caractérisé en ce qu'il comprend un premier revêtement (4) qui recouvre au moins en partie ladite fraction de surface, ledit premier revêtement (4) comprenant lui-même au moins un premier matériau incluant au moins un oxyde de silicium et/ou au moins un silane et/ou au moins un siloxane et/ou au moins un composé carbosilicié, afin d'augmenter l'étanchéité de ladite fraction de surface audit fluide corporel. Dispositifs médicaux implantables.
摘要:
A method for producing a proton conducting film which has a crosslinking structure with silicon-oxygen covalent bonds and has, in the film, a crosslinking structure containing a sulfonic acid group, represented by the following formula: (1), characterized in that it comprises a first step of preparing a mixture comprising a mercapto group containing oligomer (A) which contains a plurality of mercapto groups and has a reactive group capable of forming an Si-O-Si bonding through a condensation reaction, a second step of shaping said mixture into a film form, a third step of effecting the condensation reaction of the mixture in a film form in the presence of a catalyst, to form a crosslinked gel, and a forth step of converting the mercapto group in the film to a sulfonic acid group by oxidation; a proton conducting film produced by the method; and a solid polymer type fuel cell using the proton conducting film. The proton conducting film exhibits high ion conductivity, is excellent in dimensional stability at a high temperature, and is capable of functioning with stability even at a high temperature.
摘要:
The present invention relates to the extraordinary properties of recently discovered nanotubes. This disclosure teaches a method for using barrel proteins acting as scaffolds to guide assembly of nanotubes, and using nano-molecular molding jigs to format the nanotubes into stable arrays with the precise geometric architecture desired. This disclosure teaches nanotube technology with principles of protein folding and aggregated self-assembly. In certain embodiments, the disclosure teaches using highly modified barrel proteins to form hydrophobic and hydrophilic channels that guide the nanotubes into their centers, or other geometric patterns utilizing silicone aerogel to form nano-molecular molds, jigs, and surfaces to position nanotubes in precise geometric arrangements and arrays. This disclosure teaches new uses of barrel proteins as self-assembling molding tools to develop new nanometer scaled devices and their uses herein.
摘要:
A flocculant composition that includes a blend of a first water-in-oil emulsion having a silicon-containing polymer in its aqueous phase and a second water-in-oil emulsion having an anionic polymer in its aqueous phase. The silicon-containing polymer and the anionic polymer are present in the composition at a weight ratio between 100:1 and 1:100.
摘要:
Procédé de préparation d'un substrat comprenant un revêtement silicone anti-adhérent obtenu à partir d'une composition silicone anti-adhérente à base d'huile(s) silicone(s) réticulée(s) à propriétés d'adhésion modifiées par rapport à ses propriétés d'origine, dans lequel on prévoit un substrat au moins partiellement revêtu d'un revêtement silicone anti-adhérent et on traite le revêtement silicone anti-adhérent par plasma froid, environ à la pression atmosphérique, dans une atmosphère d'azote éventuellement dopé ou dans une atmosphère de dioxyde de carbone, éventuellement dopé, substrat au moins partiellement revêtu d'une composition silicone anti-adhérente, complexe silicone-autoadhésif et applications.
摘要:
The invention provides a cost-effective method for making a silicone hydrogel contact lens having an LbL coating thereon that is not covalently attached to the lens and has good hydrophilicity, intactness and durability. The method comprises LbL coating at high temperature.
摘要:
The invention provides a cost-effective method for making a silicone hydrogel contact lens having an LbL coating thereon that is not covalently attached to the lens and has good hydrophilicity, intactness and durability. The method comprises LbL coating at high temperature.
摘要:
The present invention provides an actinically or thermally curable ink for making colored silicone hydrogel contact lenses. The ink of the invention comprises at least one colorant, a solvent and a binder polymer including ethylenically unsaturated groups and segments derived from at least one silicone-containing vinylic monomer or macromer. The ink of the invention is characterized by having capability to be cured actinically or thermally to form a colored coat on a silicone hydrogel contact lens, wherein the colored coat has good adhesion to the silicone hydrogel contact lens without being covalently attached to the lens material of the contact lens. The invention also provides methods for making colored silicone hydrogel contact lenses.