Abstract:
Described herein is a degradable linking agent that includes a core molecule with one or more charged groups; and one or more photoreactive groups covalently attached to the core molecule by one or more degradable linkers.
Abstract:
Embodiments of the invention include devices for the release of nucleic acids and related methods. In an embodiment, the invention includes an active agent eluting coating including a polymeric matrix, a cationic carrier agent disposed with the matrix, and an active agent disposed within the matrix, the active agent including nucleic acids substantially uncomplexed with the cationic carrier agent. In an embodiment, the invention includes a method of making an implantable medical device including selecting a concentration of a cationic carrier agent corresponding to a desired elution profile, combining a matrix forming polymer, an active agent, a solvent, and the cationic carrier agent to form a coating composition having the selected concentration of the cationic carrier agent, the active agent comprising nucleic acids, and depositing the coating composition onto the surface of a substrate. Other embodiments are included herein.
Abstract:
The present invention relates to coating systems and coating systems on substrates. In an embodiment, the invention includes an article including a substrate, a base layer disposed on the substrate, the base layer comprising a silane compound with a photoreactive group, or the reaction product of a silane compound with a photoreactive group, and a polymer layer disposed on the base layer, the polymer layer comprising a polymer terminally anchored to the base layer. In an embodiment, the invention includes a coating for an article. In an embodiment, the invention includes a method of depositing a coating onto a substrate.
Abstract:
The invention relates to coating systems having one or more hydrophobic layers bonded to a substrate with a silane composition and methods of making and using the same. In an embodiment, the invention includes an article having a substrate, a base coating layer covalently bonded to the surface of the substrate and a hydrophobic polymer layer disposed on the base coating layer. In an embodiment, the invention includes a method for forming an article including applying a base layer coating solution onto a substrate to form a base layer, applying a hydrophobic polymer layer onto the base layer, and applying actinic energy to the substrate.
Abstract:
A coating composition, and method of applying such a composition under conditions of controlled humidity, for use in coating device surfaces to control and/or improve their ability to release bioactive agents in aqueous systems. The coating composition is particularly adapted for use with medical devices that undergo significant flexion and/or expansion in the course of their delivery and/or use, such as stents and catheters. The composition includes the bioactive agent in combination with a combination of a first polymer component such as polyalyl(meth)acrylate, polyaryl(meth)acrylate, polyaralkyl(meth)acrylate, or polyaryloxyalkyl(meth)acrylate and a second polymer component such as poly(ethylene-co-vinyl acetate).
Abstract:
The present invention relates to combination degradable and non- degradable matrices and related methods. In an embodiment, the invention includes an active agent delivery matrix including a degradable polymer network, a non-degradable polymer network, the non-degradable polymer network interspersed within the degradable polymer network, and an active agent. In an embodiment, the invention includes an active agent elution control matrix including a degradable polymer; and a non-degradable polymer interspersed with the degradable polymer. In an embodiment, the invention includes a method of making an active agent delivery matrix including mixing a degradable polymer with a first solvent to form a degradable polymer solution; mixing a non-degradable polymer with a second solvent to form a non-degradable polymer solution; and simultaneously depositing the degradable polymer solution and the non-degradable polymer solution onto a substrate.
Abstract:
The present invention relates to relates to combination degradable and non- degradable matrices and related methods. In an embodiment, the invention includes an active agent delivery matrix including a degradable polymer network, a non-degradable polymer network, the non-degradable polymer network interspersed within the degradable polymer network, and an active agent. In an embodiment, the invention includes an active agent elution control matrix including a degradable polymer; and a non-degradable polymer interspersed with the degradable polymer. In an embodiment, the invention includes a method of making an active agent delivery matrix including mixing a degradable polymer with a first solvent to form a degradable polymer solution; mixing a non-degradable polymer with a second solvent to form a non-degradable polymer solution; and simultaneously depositing the degradable polymer solution and the non-degradable polymer solution onto a substrate.
Abstract:
The present invention relates to coating systems and coating systems on substrates. In an embodiment, the invention includes an article including a substrate, a base layer disposed on the substrate, the base layer comprising a silane compound with a photoreactive group, or the reaction product of a silane compound with a photoreactive group, and a polymer layer disposed on the base layer, the polymer layer comprising a polymer terminally anchored to the base layer. In an embodiment, the invention includes a coating for an article. In an embodiment, the invention includes a method of depositing a coating onto a substrate.
Abstract:
The invention provides implantable medical devices that are fabricated of biodegradable materials for delivery of bioactive agent to limited access regions of a patient's body, such as the eye. The invention further provides methods of treatment utilizing the devices.
Abstract:
A coating composition, and method of applying such a composition under conditions of controlled humidity, for use in coating device surfaces to control and/or improve their ability to release bioactive agents in aqueous systems. The coating composition is particularly adapted for use with medical devices that undergo significant flexion and/or expansion in the course of their delivery and/or use, such as stents and catheters. The composition includes the bioactive agent in combination with a combination of a first polymer component such as polyaryl(meth)acrylate, polyaralkyl(meth)acrylate, or polyaryloxyalkyl(meth)acrylate and a second polymer component such as poly(ethylene-co-vinyl acetate).