摘要:
In one embodiment, the present invention is a substrate system of photopolymerizable monomers and bioactive molecules admixed with the monomers and shielded from the monomers by an insoluble material that undergoes a solid-gel transition at body temperature. Upon polymerization, the monomers produce a cross-linked structure and the shielded bioactive molecules are protected from attack in the polymerized environment. In different aspects, the substrate system is used for drug delivery and tissue engineering and protection of enzymes, proteins and growth factors. In another embodiment, the present invention is a drug delivery system of photopolymerizable monomers, drug molecules associated with the monomers and shielded from the monomers by an insoluble material that undergoes a solid-gel transition at body temperature, and a photopolymerizing means for polymerizing the monomers to produce a cross-linked structure including the drug molecules.
摘要:
In one embodiment, the present invention is a substrate system of photo-polymerizable monomers and bioactive molecules admixed with the monomers and shielded from the monomers by an insoluble material that undergoes a solid-gel transition at body temperature. Upon polymerization, the monomers produce a cross-linked structure and the shielded bioactive molecules are protected from attack in the polymerized environment. In different aspects, the substrate system is used for drug delivery and tissue engineering and protection of enzymes, proteins and growth factors. In another embodiment, the present invention is a drug delivery system of photo-polymerizable monomers, drug molecules associated with the monomers and shielded from the monomers by an insoluble material that undergoes a solid-gel transition at body temperature, and a photopolymerizing means for polymerizing the monomers to produce a cross-linked structure including the drug molecules.
摘要:
One aspect of the invention provides a transdermal delivery system including a drug formulated with a transport chaperone moiety that reversibly associates with the drug. The chaperone moiety is associated with the drug in the formulation so as to enhance transport of the drug across dermal tissue and releasing the drug after crossing said dermal tissue.
摘要:
The present invention relates to an in vivo method of promoting the growth of autologous tissue and its use to form corrective structures, including tissue that can be explanted to other locations in the animal. In particular, the invention relates to methods and systems for (a) the site-specific regeneration of tissue, and (b) the synthesis of neotissue for transplantation.
摘要:
Compositions, methods and systems are provided for the stimulation of biological activities within stem cells by applying electromagnetic stimulation to an electroactive material, wherein the electromagnetic stimulation is coupled to the electromagnetic material. In general the present invention involves attaching or associating the desired cells to or with a surface comprising an electroactive material, and applying electromagnetic radiation directly to the desired area. In preferred embodiments, the stimulation of biological activities within cells results from inducing one or more activities including, but not limited to, gene expression, cell growth, cell differentiation, signal transduction, membrane permeability, cell division, contraction, and cell signaling. In exemplary embodiments, the electroactive materials used in the present invention are either two-dimensional substrates such as thin films having at least one surface of an electroactive material, or in alternative embodiments, the electroactive materials are three-dimensional substrates comprising a matrix having at least one surface of an electroactive material.
摘要:
The invention provides a method for inhibiting bacterial attachment to a surface, the method comprising forming the surface from a polymer, or applying a polymer to the surface, wherein the polymer is a homopolymer formed from a (meth) acrylate or (meth) acrylamide monomer or a copolymer formed from one or more (meth) acrylate or (meth) acrylamide monomers, wherein the (meth) acrylate or (meth) acrylamide monomers are of formula (I) or (II): [H2C═CR′—C(═O)—O—]nR (I) [H2C═CR′—C(═O)—NH—]nR (II) wherein n is 1, 2 or 3, R′ is independently H or CH3, R is an organic group having a total of from 2 to 24 carbon atoms, wherein the organic group includes an aliphatic or aromatic hydrocarbon moiety and wherein the organic group does not include any hydroxyl groups.
摘要:
Systems, devices, methods, and compositions are described for providing an x-ray shielding system including a flexible layer including a support structure having a plurality of interconnected interstitial spaces that provide a circulation network for an x-ray shielding fluid composition.
摘要:
Breast implants including sensor modules and related methods are described herein. Breast implants include those with: a shell configured to be substantially filled with a viscous material; and a plurality of sensor modules attached to the shell and positioned at a distance from each other, each of the plurality of sensor modules oriented to detect one or more analytes in a fluid adjacent to the shell, wherein each of the plurality of sensor modules includes a unique identifier and is configured to utilize energy transmitted from an external source.
摘要:
Bone cages are disclosed including devices for biocompatible implantation. The structures of bone are useful for providing living cells and tissues as well as biologically active molecules to subjects.
摘要:
Systems, devices, methods, and compositions are described for providing an x-ray shielding system including a flexible layer including a support structure having a plurality of interconnected interstitial spaces that provide a circulation network for an x-ray shielding fluid composition.