Abstract:
The present invention relates to microspheres useful for embolization which comprises polyvinylalcohol. The present invention also relates to an injectable suspension suitable for embolization which comprises the polyvinylalcohol microspheres and a suitable liquid carrier. The present invention further relates to a method for prophylactic or therapeutic embolization which comprises administering to a mammal an injectable suspension containing the polyvinylalcohol microspheres and a suitable liquid carrier. Finally, the present invention relates to a process for producing the polyvinylalcohol microspheres.
Abstract:
The invention relates to a method for immobilizing nucleic ligands including at least one reactive amine function, by grafting on an activated solid substrate, including a step of coupling said nucleic acids on said activated solid substrate having a pH of less than 6.
Abstract:
The present invention provides methods and kits for purifying a target protein group. The method comprises the steps of contacting a sample comprising at least 95% of the target protein group and at most 5% of contaminating proteins with a library of binding moieties having different binding moieties, binding the contaminating proteins and a minority of the target protein group to the library of binding moieties, separating the unbound target protein group from the proteins bound to the library of binding moieties and collecting the unbound target protein. The collected target protein is more pure than the target protein group in the sample.
Abstract:
Ion exchange and hydrophobic interaction chromatographic materials are constructed by tethering a terminal binding functionality to a solid support via a hydrophobic linker. The backbone of the linker typically comprises sulfur-containing moieties. Suitable terminal binding functionalities are tertiary amines, quaternary ammonium salts, or hydrophobic groups. These chromatographic materials possess both hydrophobic and ionic character under the conditions prescribed for their use. The separation of proteins from crude mixtures at physiological ionic strength can be accomplished with a chromatographic material of this type by applying pH or ionic strength gradients, thereby effecting protein adsorption and desorption.
Abstract:
The present invention relates to elastic, hydrophilic and substantially spherical microspheres useful for dermal augmentation and tissue bulking. The invention provides injectable compositions comprising the microspheres and a biocompatible carrier for use in dermal augmentation. The present invention further provides methods of dermal augmentation and tissue bulking, particularly for the treatment of skin contour deficiencies, Gastro-esophageal reflux disease, urinary incontinence, and urinary reflux disease, using the injectable compositions.
Abstract:
The present invention provides diverse chemical libraries bound to small particle with paramagnetic properties. Typically, the chemical structures comprise a plurality of different chemical moieties, the particles are paramagnetic and have a diameter between about 100 nm and about 10 microns, the chemical structures bound to each particular particle have substantially the same structure and the combinatorial library comprises at least 100,000 different chemical structures.
Abstract:
The present invention relates to microspheres useful for embolization which comprises polyvinylalcohol. The present invention also relates to an injectable suspension suitable for embolization which comprises the polyvinylalcohol microspheres and a suitable liquid carrier. The present invention further relates to a method for prophylactic or therapeutic embolization which comprises administering to a mammal an injectable suspension containing the polyvinylalcohol microspheres and a suitable liquid carrier. Finally, the present invention relates to a process for producing the polyvinylalcohol microspheres.
Abstract:
Ion exchange and hydrophobic interaction chromatographic materials are constructed by tethering a terminal binding functionality to a solid support via a hydrophobic linker. The backbone of the linker typically comprises sulfur-containing moieties. Suitable terminal binding functionalities are tertiary amines, quaternary ammonium salts, or hydrophobic groups. These chromatographic materials possess both hydrophobic and ionic character under the conditions prescribed for their use. The separation of proteins from crude mixtures at physiological ionic strength can be accomplished with a chromatographic material of this type by applying pH or ionic strength gradients, thereby effecting protein adsorption and desorption.
Abstract:
Methods, apparatuses, and kits for fractionating complex mixtures of biological molecules are provided. In one aspect the methods provided include providing a series of different sorbents, introducing the complex mixture to the series of sorbents, contacting serially the complex mixture with each of the sorbents, and capturing biomolecular components from the complex mixture on the sorbents so that each of the sorbents captures a substantially unique subset of said plurality of biomolecular components.
Abstract:
The invention provides methods of monitoring the production of a target polypeptide by generating surface enhanced laser desorption/ionization mass spectral profiles of samples taken from multiple cell culture batches or of samples taken at different times from a given batch. The invention additionally provides methods for monitoring the purification of a target polypeptide from a mixture by generating surface enhanced laser desorption/ionization mass spectral profiles of samples taken at various times during a purification process. In addition, the invention relates to methods of identifying conditions that can be used in increasing the scale of a given purification process.