摘要:
Improved compositions comprising a cross-linkable protein or polypeptide, and a non-toxic material which induces cross-linking of the cross-linkable protein. The compositions are optionally and preferably prepared in a non-phosphate buffer solvent. Optionally and preferably, the cross-linkable protein includes gelatin and any gelatin variant or variant protein as described herein. Optionally and preferably, the non-toxic material comprises transglutaminase (TG), which may optionally comprise any type of calcium dependent or independent transglutaminase, which may for example optionally be a microbial transglutaminase (mTG).
摘要:
Improved compositions comprising a cross-linkable protein or polypeptide, and a non-toxic material which induces cross-linking of the cross-linkable protein. The compositions are optionally and preferably prepared in a non-phosphate buffer solvent. Optionally and preferably, the cross-linkable protein includes gelatin and any gelatin variant or variant protein as described herein. Optionally and preferably, the non-toxic material comprises transglutaminase (TG), which may optionally comprise any type of calcium dependent or independent transglutaminase, which may for example optionally be a microbial transglutaminase (mTG).
摘要:
Improved compositions comprising a cross-linkable protein or polypeptide, and a non-toxic material which induces cross-linking of the cross-linkable protein. The compositions are optionally and preferably prepared in a non-phosphate buffer solvent. Optionally and preferably, the cross-linkable protein includes gelatin and any gelatin variant or variant protein as described herein. Optionally and preferably, the non-toxic material comprises transglutaminase (TG), which may optionally comprise any type of calcium dependent or independent transglutaminase, which may for example optionally be a microbial transglutaminase (mTG).
摘要:
Substantially non-adhesive hydrogels are useful as wound dressings, wound barriers, therapeutic drug delivery devices and the like. The substantially non-adhesive hydrogels are synthesized by a method that comprises irradiating a solution comprising a biological polymer that is biodegradable and biocompatible, using ionizing radiation, whereby free radicals of the biological polymer are formed and cross-linking occurs between the biological polymer radicals to provide the hydrogel.
摘要:
A method for treating a target tissue of a patient comprising, in combination, mixing a drug with a solidifiable biological material, chemically treating the drug with the biological material with a crosslinking agent, loading the solidifiable drug-containing biological material onto a medical device, solidifying the drug-containing biological material; and delivering the medical device to the target tissue for treating the tissue.
摘要:
A method for promoting autogenous ingrowth of damaged or diseased tissue selected from a group consisting of ligaments, tendons, muscle and cartilage, the method comprising a step of surgically repairing the damaged or diseased tissue by attachment of a tissue graft, wherein the tissue graft is formed from a segment of connective tissue protein after an acellularization process, the segment being crosslinked with genipin, its analog or derivatives. The genipin-fixed acellular tissue provides a microenvironment for tissue regeneration adapted for use as a biological implant device due to its low cytotoxicity.
摘要:
The present invention relates to a dry composition, which upon addition of an aqueous medium forms a substantially homogenous paste suitable for use in haemostasis procedures. The paste forms spontaneously upon addition of the liquid, hence no mechanical mixing is required for said paste to form. The invention further relates to methods of preparing said dry composition, a paste made from said dry composition and use of said paste for medical and surgical purposes.
摘要:
Thus, the present invention provides a composition in powder form comprising highly dispersed silica particles, polymethylsiloxane particles, and a cationic surfactant, wherein at least 25% by weight of the cationic surfactant is present in primary polymethylsiloxane particles carrying the cationic surfactant on their surface and/or in agglomerates of these primary particles.
摘要:
A planar implant for replacement of biological tissues includes a layered structure includinga) a lyophilized pericardium layer of biological origin, andb) at least one sponge-like layer of lyophilized extracellular protein.
摘要:
According to an illustrative embodiment a method to promote healing of a wound is provided comprising contacting the wound with a biologically active composition comprising a lipoic acid derivative and gelatin. In another embodiment a wound dressing is provided comprising a scaffold coated with a biologically active composition comprising a lipoic acid derivative. In a further embodiment, a system is provided for treating a tissue site of a patient, the system comprising a reduced-pressure source to supply reduced pressure, a manifold to distribute reduced pressure to a tissue site and a scaffold coated with a biologically active composition comprising a lipoic acid derivative. Methods for producing such a system and scaffold are also disclosed.