A61L2400/12

Spider silk coating of solid surfaces
11484624 · 2022-11-01 · ·

A method for coating a solid surface with a recombinant spider silk protein capable of forming polymeric, solid structures is provided. The method is comprising the following steps: exposing the solid surface to an aqueous solution of the recombinant spider silk protein and thereby forming a surface layer of the recombinant spider silk protein adsorbed on the solid surface without formation of covalent bonds between the recombinant spider silk protein and the solid surface; and further exposing the surface layer of the solid surface to an aqueous solution of the recombinant spider silk protein and thereby forming an assembled silk structure layer of the recombinant spider silk protein on the surface layer; wherein the method does not include drying-in of spider silk protein.

Hemocompatibility of superhemophobic titania surfaces

In this work, we investigated the blood platelet adhesion and activation of truly superhemophobic surfaces and compared them with that of hemophobic surfaces and hemophilic surfaces. Our analysis indicates that only those superhemophobic surfaces with a robust Cassie-Baxter state display significantly lower platelet adhesion and activation. The understanding gained through this work will lead to the fabrication of improved hemocompatible, superhemophobic medical implants.

Implantable nerve guidance conduits having polymer fiber guidance channel

A nerve guidance conduit includes one or more guidance channels formed as porous polymeric structures. The guidance channels are within an outer tubular structure that includes randomly-oriented nanofibers. The guidance channels may have electrospun nanofibers on their inner and outer surfaces in a parallel alignment with the guidance channels. Such aligned nanofibers may also be present on the inner surface of the outer tubular structure. The outer surfaces of the guidance channels and the inner surface of the tubular structure define additional guidance channels. Such a nerve guidance conduit provides augmented surface areas for providing directional guidance and enhancing peripheral nerve regeneration. The structure also has the mechanical and nutrient transport requirements required over long regeneration periods.

METHODS FOR ADHERING TISSUE SURFACES AND MATERIALS AND BIOMEDICAL USES THEREOF

The present invention relates to methods for adhering tissue surfaces and materials and biomedical uses thereof. In particular the present invention relates to a method for adhering a first tissue surface to a second tissue surface in a subject in need thereof, comprising the steps of adsorbing a layer of nanoparticles on at least one of the tissue surfaces, and approximating the surfaces for a time sufficient for allowing the surfaces to adhere to each other. The present invention also relates to a method for adhering a material to a biological tissue in a subject in need thereof, comprising the steps of adsorbing a layer of nanoparticles on the surface of the material and/or the biological tissue and approximating the material and the biological tissue for a time sufficient for allowing the material and the biological tissue to adhere to each other.

INTERPENETRATING NETWORK HYDROGELS WITH INDEPENDENTLY TUNABLE STIFFNESS

Interpenetrating network hydrogels with independently tunable stiffness enhance tissue regeneration and wound healing.

Processes for formation of porous biologically compatible scaffold structures

A method of forming a porous structure involves mixing a solvent with a curable material which disperses in the solvent such that the mixture has greater than 50% solvent content. The mixture is deposited on a substrate and viscosity of the mixture is increased. The curable material in the mixture is cured while a shape of the curable material is maintained by the solvent. After curing, the solvent is removed from the structure.

NATURAL COMPOSITION BASED ON POLYMERS TO BE ELECTROSPUN, AND METHOD TO PREPARE THE SAME

The invention concerns a composition to be electrospun comprising a first compound to be electrospun, an electrospinning promoter and at least one active ingredient, as well as a method to prepare it. This composition allows to obtain electrospun nanometric fibers with good structural and absorption properties.

GRAFT PATCH FOR THE TREATMENT OF MYOPIA AND OPHTHALMIC CONDITIONS
20220339323 · 2022-10-27 · ·

The invention provides a synthetic ophthalmic device comprising a porous polymeric structure; wherein said structure is in the shape of a truncated hemisphere and uses thereof in the treatment of ophthalmic conditions, diseases and syndromes.

POLYMER COATING FOR MEDICAL DEVICES AND METHOD OF MANUFACTURE THEREOF
20230087962 · 2023-03-23 ·

Disclosed herein is a bio-resistant article comprising a porous metal substrate; a self-assembled monolayer disposed on the substrate; wherein the self-assembled monolayer comprises a coupling agent that has a first end that is reactively bonded to the porous metal substrate and a second end that is reactively bonded to a zwitterionic polymer. Disclosed herein too is a method comprising disposing upon a porous metal substrate a self-assembled monolayer; and bonding the zwitterionic polymer to the self-assembled monolayer.

BIOCOMPATIBLE IMPLANT AND METHOD OF MANUFACTURING BIOCOMPATIBLE IMPLANT
20220339318 · 2022-10-27 ·

A biocompatible implant according to one aspect of the present disclosure includes a base and a calcium phosphate coating film located on a surface of the base and including silver. The calcium phosphate coating film includes a plurality of calcium phosphate particles located on a surface thereof, and a plurality of needle-like crystals located on a surface of the plurality of calcium phosphate and the plurality of needle-like crystals are located in a gap at an interface between adjacent calcium phosphate particles among the plurality of calcium phosphate particles.