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Class 536/51 - Dextran derivatives


Subclass of Class 536 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which are high molecular weight polysaccharides
No. of patents: 107
Last issue date: 08/30/2011


1      
NumberTitleIssue Date
8008476Room temperature stable agarose solutions
The present invention provides methods for making porous crosslinked polysaccharide hydrogel coated structures. The methods include impregnating a porous substrate with a room temperature stable aqueous polysaccharide solution containing, water, a polysaccharide hav...
08/30/2011
7807823Method of forming polysaccharide structures
A process for forming polysaccharide structures such as beads, gel films and porous coatings on porous substrates by forming a room temperature gel-inhibited solution of a polysaccharide, one or more gel-inhibiting agent(s) and a solvent such as water, heating the m...
10/05/2010
7265098Polyacid/polyalkylene oxide gels and methods for their delivery
The present invention relates to improved methods for delivering bioadhesive, bioresorbable, anti-adhesion compositions. Antiadhesion compositions can be made of intermacromolecular complexes of carboxyl-containing polysaccharides, polyethers, polyacids, polyalkylen...
09/04/2007
7101863Pharmaceutical compositions with wound healing or anti-complementary activity comprising a dextran derivative
The invention concerns pharmaceutical compositions with wound healing or anti-complementary activity, and their uses, said compositions comprising, (1) at least a dextran derivative of general formula DMCaBbSuc, a, b, and c respectiv...
09/05/2006
7070943Detection of protein conformations in single cells
Methods, reagents, and kits are provided that permit flow cytometric determination of the phosphorylation status of retinoblastoma susceptibility gene protein (pRB) in individual cells. Methods are described that permit the hypophosphorylated, active, form of pRB to...
07/04/2006
7053069Pharmaceutical compositions and methods of using C-21 modified epothilone derivatives
Pharmaceutical compositions containing C-21 modified epothilone derivatives, methods for their preparation and dosing regimen for administration of these epothilone compounds are provided. The compositions are stable and readily prepared for administration by dissol...
05/30/2006
7041730Polymers and their synthesis
The invention relates to polysaccharide graft polymers useful for incorporation as benefit agents in laundry detergent and fabric treatment compositions, and their preparation. The invention also relates to substituted polysaccharides useful as macroinitiator interm...
05/09/2006
7005426Folic acid-polysaccharide complex, its preparation method and pharmaceutical composition containing the same as active component
The present invention relates to folic acid-polysaccharide complexs and method of preparation thereof, more particularly relates to folic acid-Dextran complexs, method of preparation thereof, pharmaceutical compositions having said complex as active component and us...
02/28/2006
7005513Functionalized glycosaminoglycan polymer and medical instruments and drugs by using the same
The present invention provides a functionalized polymer which can be used extensively in the field of medical drugs as well as medical devices and which is obtainable in an organic synthetic manner from glycosaminoglycan controlling adhesion, migration and prolifera...
02/28/2006
6949524Polysaccharide conjugates of biomolecules
Compounds that are modified polysaccharides having pendant aldehyde functionalities are disclosed. Each of the aldehyde functionalities is attached through a linker to a position corresponding to a hydrogen atom of a different hydroxyl group of unmodified polysaccha...
09/27/2005
6869938Compositions of polyacids and polyethers and methods for their use in reducing adhesions
The present invention relates to improved methods for making and using bioadhesive, bioresorbable, anti-adhesion compositions made of intermacromolecular complexes of carboxyl-containing polysaccharides, polyethers, polyacids, polyalkylene oxides, multivalent cation...
03/22/2005
6838450Drug complex
A drug complex characterized in that a residue of a drug compound such as antineoplastic agents and a carboxy(C1-4)alkyldextran polyalcohol obtained by treating a dextran under conditions that enable substantially complete polyalcoholization are bound to ...
01/04/2005
6730661Nutritional composition which contain non-digestible polysaccharides and use thereof to reduce transport through tight junctions
The present invention relates to the use of one or more non-digestible polysaccharides selected from the group consisting of dextrans having a molecular weight of 8 kD to 40,000 kD, hydrolysed (gluco)mannans having a molecular weight of 0.5 kD to 1,000 kD and hydrol...
05/04/2004
6656685Hybridization buffers using low molecular weight dextran sulfate and methods for their use
The invention is directed to an improvement in automated tissue staining system having evaporation inhibitor liquid covering the polynucleotide hybridization buffer-covered tissue on a slide, wherein the improvement comprises a polynucleotide hybridizatio...
12/02/2003
6646120Dextran derivatives, preparation and medicinal applications
The invention concerns dextran derivatives, their applications as medicines with specific biological action, and their preparation method. Said derivatives correspond to the general formula DMCa Bb SUc Sd, in wh...
11/11/2003
6528629Malto-oligosaccharide derived glycosides
Disclosed is a method for preparing a malto-oligosaccharide derived glycoside. Generally, the method comprises providing a malto-oligosaccharide and glycosylating the malto-oligosaccharide with an alcohol or a thiol under conditions suitable to form a ...
03/04/2003
6489309Polysaccharide conjugates of biomolecules
Compounds that are modified polysaccharides having pendant aldehyde functionalities are disclosed. Each of the aldehyde functionalities is attached through a linker to a position corresponding to a hydrogen atom of a different hydroxyl group of unmodified...
12/03/2002
6436912Drug complexes
A drug complex characterized in that a residue of a drug compound such as antineoplastic agents and a carboxy(C1-4)alkyldextran polyalcohol obtained by treating a dextran under conditions that enable substantially complete polyalcoholization ar...
08/20/2002
6348629Free radical inhibitors for quenching aqueous phase polymer growth and related methods
An aqueous phase inhibitor for quenching free radical polymerization comprising a free radical quenching agent having a hydrophilic tail is disclosed, as well as a coating and related methods. In one embodiment, the free radical quenching agent can either...
02/19/2002
6319380Use of an earlier known separation material and novel forms of the material
The use of a gel produced by polymerization of a dextran derivative which exhibits groups that contain an alkene structure, for separating nucleic acid by electrophoresis....
11/20/2001
6262256Article for tuesyl-activated dextran for solid-phase coupling
A method of modifying the binding properties on a surface of a solid phase on which there are nucleophilic groups, which is characterized in that the surface is treated with a solution of an activated polysaccharide; a method of immobilizing a chemical co...
07/17/2001
6127348Methods and compositions based on inhibition of cell invasion and fibrosis by anionic polymers
The present invention relates to the discovery that biocompatible anionic polymers can effectively inhibit fibrosis, scar formation, and surgical adhesions. The invention is predicated on the discovery that anionic polymers effectively inhibit invasion of...
10/03/2000
6120987Non-aggregated fluorescent conjugates and the process for their preparation
The invention relates to a process for the preparation of a fluorescent conjugate between a carrier molecule possessing at least one amino, hydroxyl, carboxyl and/or sulfhydryl group and a fluorophoric reagent possessing at least one functional group capa...
09/19/2000
6121430Regiospecific synthesis of glucose-based surfactants
New glucose-based surfactants and methods of their synthesis are described. The surfactants are synthesized through the preparation of an intermediate glucose 4,6-cyclic sulfate. The surfactants are economical to prepare and have excellent surface-active ...
09/19/2000
6018035Reagents for isotropic size enhancement of a peptide, protein, nucleotide or other substrate
Novel polysaccharide compounds are disclosed for decorating biomolecular surfaces to increase isotropic size and mask antigenicity. The oligosaccharides may be synthesized as repeating disaccharide units, or may be derived by acid hydrolysis of naturally ...
01/25/2000
5948904Process for the preparation of aromatic carbamoyl-substituted polysaccharide derivatives
The invention relates to a process for the preparation of polysaccharide-N-arylcarbamates in suitable form as supports for chromatography, which process comprises adding to polysaccharide carbamates, which may be substituted in the aryl moiety, an N-...
09/07/1999
5886169Iodinated polymers, processes for preparing them and their applications as contrast media
Iodized polymers, comprising a skeleton consisting of a dextrane onto which are grafted groups of the formula (I). Application of the these compounds as contrast products....
03/23/1999
5874569Method of preparing tresyl-activated dextran, article having tresyl-activated dextran fixed covalently to its surface, and immobilization of chemical compounds thereto
A method of preparing a tresyl-activated dextran is disclosed in which an aqueous solution of dissolved dextran is reacted with a tresylating agent in a hexamethylphosphoric triamide and/or N-methyl pyrrolidinone solvent, and the formed tresyl-activated d...
02/23/1999
5874232Relating to assay reagents
We have discovered that the stability of a dilute peroxidase-containing solution is greatly enhanced by the addition of a specific substrate for the peroxidase, in the absence of peroxide. We provide a peroxidase-containing reagent consisting of a buffere...
02/23/1999
5840677Boronic acid or borinic acid derivatives as enzyme stabilizers
The invention relates to a detergent composition comprising an enzyme and a boronic acid or borinic acid derivative which acts as a stabilizer for the enzyme in detergent compositions. Specific boronic acid inhibiters include benzofuran substituted boroni...
11/24/1998
5773227Bifunctional chelating polysaccharides
This invention describes bifunctional polysaccharides conjugated to both a chelating group suitable for the selective complexation of metal cations, and a targeting peptide specific for a cellular substructure. These bifunctional polysaccharides are prima...
06/30/1998
5707877Biodegradable gelatin-aminodextran particle coatings of and processes for making same
The invention relates generally to colloidal particle having a core material and a gelatin/aminodextran coating with pendent functional groups attached thereto. Biological substances or molecules, especially monoclonal antibodies, may be attached to said ...
01/13/1998
5693625Method of regenerating cells and tissues using functionalized dextrans
Compositions useful for regenerating cells and tissues comprise at least one functionalized dextran which has been substituted with carboxymethyl, benzylamide, or benzylamide sulfonate. These dextrans can be used alone or in combination with acid or basic...
12/02/1997
5635610Production of saccharide carboxylic acids
A process for producing a saccharide carboxylic acid or a salt thereof characterized in that a microorganism belonging to the genus Pseudogluconobacter and capable of oxidizing a hydroxymethyl group and/or hemiacetal hydroxyl-associated carbon atom to a c...
06/03/1997
5635611Production of saccharide carboxylic acids
A process for producing a saccharide carboxylic acid or a salt thereof characterized in that a microorganism belonging to the genus Pseudogluconobacter and capable of oxidizing a hydroxymethyl group and/or hemiacetal hydroxyl-associated carbon atom to a c...
06/03/1997
5543389Covalent polar lipid-peptide conjugates for use in salves
This invention herein describes a method of facilitating the entry of drugs into cells at pharmokinetically useful levels and also a method of targeting drugs to specific organelles within the cell. This lipid/drug conjugate targeting invention embodies a...
08/06/1996
5543390Covalent microparticle-drug conjugates for biological targeting
This invention provides novel methods and reagents for specifically delivering biologically active compounds to phagocytic mammalian cells. The invention also relates to specific uptake of such biologically active compounds by phagocytic cells and deliver...
08/06/1996
5543391Covalent microparticle-drug conjugates for biological targeting
This invention provides novel methods and reagents for specifically delivering biologically active compounds to phagocytic mammalian cells. The invention also relates to specific uptake of such biologically active compounds by phagocytic cells and deliver...
08/06/1996
5502082Low density materials having good compression strength and articles formed therefrom
A crosslinked, highly porous body derived from a water-soluble, hydrogel polymer, wherein the porous body is characterized in that it has an open-celled 3-dimensional lattice structure, a density of less than about 1.0 g/cm3 a surface area of e...
03/26/1996
5490978Block copolymers of polysaccharides and polyalkylene oxides
Polysaccharides (e.g., dextran) of different molecular weights were substituted at the anomeric carbon with polyalkylene oxides of different molecular weights to give novel diblock copolymers. The copolymers inhibit bacterial aggregation. The copolymers a...
02/13/1996
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