摘要:
The present invention provides for compositions and methods for recognizing toxins in a host. The composition comprising a particle of less than 100 micrometers in diameter having a tag in direct contact with a portion of the particle, the particle comprising a biodegradable polymer and the portion of the particle in contact with the tag selected from the group consisting of acrylic acid, 2-hydroxyethyl acrylate, 2-acrylamido-2-methyl-1-propanesulfonic acid, allylamine, carboxyl group, hydroxyl group, sulfonic group, aldehyde group, and amine group, wherein the tag is selected from the group consisting of drug, antibody, ligand, antigen, protein, peptide, counter-ligand moiety, fatty acid moiety, and carbohydrate moiety, and wherein one or more particles are introduced into the host having toxins and the one or more particle recognize the toxins.
摘要:
A method for synthesizing uniformly sized hyaluronic acid (“HA”) particles that are substantially free from oil and surfactant contaminants. The method comprises crosslinking HA chains with 1-ethyl-3-(3-dimethlyaminopropyl) carbodiimide hydrochloride (“EDAC”) and adipic acid dihydrazide in a water/acetone mixture.
摘要:
A measuring instrument and a method of remote quantity value transfer/traceability are provided. The measuring instrument includes a central processing component, a local quantity value transfer/traceability component connected to the central processing component, a remote quantity value transfer/traceability component connected to the central processing component and a remote communication component connected to the central processing component; a metrological grade of the remote quantity value transfer/traceability component is greater than or equal to that of the local quantity value transfer/traceability component; the remote quantity value transfer/traceability component is configured to perform quantity value transfer/traceability to the local quantity value transfer/traceability component by using one of the in-machine metrological standard and the remote high-grade metrological standard provided from the remote quantity value transfer/traceability component. The method of remote quantity value transfer/traceability can be achieved to make the quantity value transfer/traceability of the measuring instrument very convenient, simple and less costly.
摘要:
Methods for accumulating, recruiting and retrieving stem cells from a body cavity space of an adult mammal are disclosed, in addition to compositions and cells in accordance with the present invention. In accordance with another aspect of the present invention, a method of obtaining a new source of stem cells is provided by implanting a foreign object in a body cavity space of a mammal and collecting those stem cells resulting from implantation. Further in accordance with the present invention, a method for providing to a subject in need thereof one or more stem cells of the present invention is identified by retrieving stem cells for a body cavity space of a mammal after implanting a foreign object, manipulating the stem cells and introducing the stem cells into the subject in need thereof.
摘要:
A measuring instrument and a method of remote quantity value transfer/traceability are provided. The measuring instrument includes a central processing component, a local quantity value transfer/traceability component connected to the central processing component, a remote quantity value transfer/traceability component connected to the central processing component and a remote communication component connected to the central processing component; a metrological grade of the remote quantity value transfer/traceability component is greater than or equal to that of the local quantity value transfer/traceability component; the remote quantity value transfer/traceability component is configured to perform quantity value transfer/traceability to the local quantity value transfer/traceability component by using one of the in-machine metrological standard and the remote high-grade metrological standard provided from the remote quantity value transfer/traceability component. The method of remote quantity value transfer/traceability can be achieved to make the quantity value transfer/traceability of the measuring instrument very convenient, simple and less costly.
摘要:
A pH detectable coating. The pH detectable coating includes a pH insensitive fluorescent dye and a pH sensitive fluorescent dye. The pH insensitive fluorescent dye and the pH sensitive fluorescent dye are attached to a surface. The ratio of the fluorescent intensity of the pH insensitive fluorescent dye to the fluorescent intensity of the pH sensitive fluorescent dye varies according to the pH of an environment into which the surface is placed.
摘要:
The present invention provides functionalized particles and methods for delivering said particles capable of crossing a physiologic barrier and exerting an effect. In one embodiment, the present invention provides a method of delivering a particle to a mammal comprising the steps of contacting a functionalized particle with a tag and introducing the functionalized and tagged particle to a mammal, wherein the functionalized portion of the particle is selected from the group consisting of acrylic acid, 2-hydroxyethyl acrylate, 2-acrylamido-2-methyl-1-propanesulfonic acid, allylamine, carboxyl group, hydroxyl group, sulfonic group, aldehyde and amine group. The particle is a biodegradable or nodegradable polymer and less than 1.0 mm in diameter.
摘要:
A method for synthesizing uniformly sized hyaluronic acid (“HA”) particles that are substantially free from oil and surfactant contaminants. The method comprises crosslinking HA chains with 1-ethyl-3-(3-dimethlyaminopropyl) carbodiimide hydrochloride (“EDAC”) and adipic acid dihydrazide in a water/acetone mixture.
摘要:
A coating for an implant surface comprising one or more nanoparticles of less than or equal to 500 nanometers and an implant surface capable of receiving the nanoparticles, the implant selected from the group consisting of metal, carbon, graphite, polymer, protein, nucleic acid, microorganisms, hydrogel, liquid, porous and polymer blend particles, and combinations thereof. The coating promotes characteristics on the implant surface such as reducing protein unfolding, preventing inflammatory and fibrotic cell accumulation, reducing the number of such cell attachment sites and preventing other adverse biological reactions. The coating may be applied on any material via physical and/or chemical binding. The coating may further comprise a surfactant and may include a tag, adsorbed, absorbed or incorporated onto the nanoparticle. The coating on an implant surface is used for purposes that may be cosmetic, therapeutic, preventative, reconstructive, monitoring and replacement. The coating may also be used for in vitro purposes.