摘要:
Disclosed herein is a dental material composition comprising a polymer matrix material and a biocatalyst that promotes the deposition of a mineral, for example silica or hydroxylapatite. A dental restoration comprising the polymer matrix material and biocatalyst is also claimed. In another embodiment, a method of forming a dental material comprises combining a biocatalyst that promotes the deposition of a mineral and a polymer matrix material to form a biocatalyst-polymer composite.
摘要:
Described are conjugated polymer fibers and nanofibers, methods of making, and methods of use thereof. The conjugated polymer fibers and nanofibers can be prepared by an electrostatic spinning process followed by crosslinking.
摘要:
Multi-shape products of the present disclosure comprise two components: a matrix component and a fiber component that is embedded or otherwise disposed in the matrix component. The matrix component exhibits certain shape memory properties. The fiber component interpenetrates the matrix component to facilitate fixing of the multi-shape product in various temporary shapes.
摘要:
A self-healing product having a shape memory component and a healing component interpenetrating the shape memory component to form a fibrous microstructure. The healing component is selected so as to diffuse into a defect when the area of the product with the defect is subject to a treatment. The components may be selected so that applying heat at a temperature at or above a melting temperature (Tm) and/or a glass transition temperature (Tg) for one or both of the shape memory component and the healing component causes shape memory transition and diffusion by the healing component. The self-healing product can form a coating or material layer to protect a substrate while also providing the healing properties responsive to the treatment.
摘要:
Robust polymeric hydrogels and a method to fabricate antimicrobial non-woven fibrous wound dressing with controlled silver release that may be used for anti-infective medical implants and anti-infective coating for implantable medical device. The hydrogels may be provided in non-woven fibrous wound dressing and anti-infective implantable medical devices, especially for reconstructive oral and bone surgery.
摘要:
Shape memory main-chain smectic-C elastomers are described. The elastomers are prepared by hydrosilylation of a reaction mixture including a liquid crystalline diene, a crosslinking agent, and a bis(silyl hydride) compound. The elastomers exhibit shape-memory properties and spontaneously reversible shape changes. They are useful for fabrication of shape memory articles including, for example, implantable medical devices, contact lenses, reversible embossing media, and Fresnel lenses.
摘要:
A multi-block thermoplastic polyurethanes system which incorporates polyhedral oligomeric silsesquioxane into conventional biodegradable thermoplastic polyurethanes built up by poly(ε-caproactone) and polyethylene glycol blocks, resulting in biostability. The multi-block thermoplastic polyurethanes are synthesized from lysine-diisocyanate with poly(ε-caprolactone)-diol, polyhedral oligomeric silsesquioxane-diol, and poly(ethylene glycol) using a one-step synthesis process.
摘要:
Embodiments of a product such as a stimuli-responsive product can comprise a shape memory component and a nanofiber component that forms a fibrous microstructure or network. The resulting product can be responsive to stimuli, such as electrical stimuli, in a manner that cause the product to deform, deflect, and rebound. In one embodiment, the product can comprise an epoxy and a continuous non-woven nanofiber, the combination of which provides a product with enhanced actuation speed.
摘要:
Robust polymeric hydrogels and a method to fabricate antimicrobial non-woven fibrous wound dressing with controlled silver release that may be used for anti-infective medical implants and anti-infective coating for implantable medical device. The hydrogels may be provided in non-woven fibrous wound dressing and anti-infective implantable medical devices, especially for reconstructive oral and bone surgery.
摘要:
Embodiments of a self-healing product comprise a shape memory component and a healing component interpenetrating the shape memory component to form a fibrous microstructure. This microstructure can facilitate healing and mending mechanisms, wherein in one embodiment the healing component is selected so as to diffuse into a defect when the area of the product with the defect is subject to a treatment. This treatment can vary the temperature of the self-healing product, with the temperatures in one example being at or above a melting temperature (Tm) and/or a glass transition temperature (Tg) for one or both of the shape memory component and the healing component. The self-healing product can also comprise a substrate so that deposition of one or more of the shape memory component and the healing component onto the substrate can form a coating or material layer the likes of which can protect the subjacent substrate while also providing the healing properties responsive to the treatment.