Carbohydrate Is Cellulose Or Derivative Thereof Patents (Class 435/179)
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Patent number: 7695973Abstract: The present invention provides methods for quantitation of glycated protein in a biological sample using a solid support matrix by making a first bound protein measurement total bound protein under conditions where both glycated and non-glycated protein bind to the support in making a second bound protein measurement under conditions where glycated protein is bound to the support and non-glycated protein is not substantially bound. Diagnostic devices and kits comprising the methods of the present invention are also provided.Type: GrantFiled: February 7, 2007Date of Patent: April 13, 2010Assignee: Scripps Laboratories, Inc.Inventors: Ralph P. McCroskey, Cameron E. Melton
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Publication number: 20100015097Abstract: The present invention relates to a method of making a sorbent, comprising the steeps of crushing seed husks, acid hydrolysis with extraction of water-soluble ballast substances and formation of the target composition of lignin, cellulose and melanin, water rinsing and drying, wherein the acid hydrolysis is made with an 0.1-36% acid solution during 0.3-4.5 hours in the boiling mode under pressure in the range 0.1-0.7 MPa, rinsing is made with water and/or a 0.1-1.0% alkali solution and then softened water, and the product is subsequently dried. The sorbent comprises a porous multilevel matrix on the basis of lignin, cellulose and melanin. The invention further discloses the sorbent and its uses as for prophylaxis and treatment of toxicoses, free-radical pathologies, diarrhea syndromes which are caused by ecotoxicants, viral and bacterial infections, for prophylactic and treatment of animal diseases caused by mycotoxins, pesticides, bad-quality forages in all kinds of animals.Type: ApplicationFiled: July 10, 2007Publication date: January 21, 2010Inventors: Viktoria Alexeevna Lapina, Alexander Evgenievich Dontsov, Igor Viktorovich Nasonov
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Patent number: 7611701Abstract: A process for the preparation of an enzyme-containing granulate is disclosed where an aqueous enzyme-containing liquid is mixed with an edible carbohydrate-based solid carrier, such as starch, mechanically processed into granules, and subsequently dried. This enzyme granulate is suitable for the manufacture of animal feed compositions by mixing feed ingredients with the granulate, treating with steam and pelleting. The compositions optimally show improved enzyme stability during the pelleting process.Type: GrantFiled: October 25, 2002Date of Patent: November 3, 2009Assignee: BASF AktiengesellschaftInventors: Rudolph Carolus Maria Barendse, Gabriel Marinus Henricus Meesters, Hans-Peter Harz
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Publication number: 20090209019Abstract: A bioartificial renal tubule is provided that forms an artificial kidney together with a bioartificial glomerulus suitable for continuous hemofiltration. The bioartificial renal tubule includes an artificial membrane having an inner surface coated with renal tubular epithelial cells and a vessel containing the artificial membrane. The cells are prevented by the use of a MEK inhibitor from being stratified and therefore form a confluent monolayer on the artificial membrane. The renal tubular epithelial cells are characterized in that the contact inhibition thereof is maintained by the use of the MEK inhibitor. The MEK inhibitor is preferably U0126. The attachment of cells capable of reproducing the function of a kidney allows dialysis to be continuously performed for 24 hours with high efficiency and also allows the ability of a renal tubule to reabsorb useful substances to be achieved.Type: ApplicationFiled: October 15, 2007Publication date: August 20, 2009Applicant: TOKAI UNIVERSITY EDUCATIONAL SYSTEMInventors: Akira Saito, Tun Aung Yokoyama
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Patent number: 7547449Abstract: The subject invention concerns a composite comprising an organic fluid-swellable, fibrous matrix, such as collagen, and a mineral phase, such as calcium carbonate or phosphate mineral phase, for use as a biomimetic of bone. In another aspect, the subject invention concerns a process for making a composite involving the inclusion of acidic polymers to a supersaturated mineralizing solution, in order to induce an amorphous liquid-phase precursor to the inorganic mineral, which is then absorbed (pulled by capillary action) into the organic matrix. Advantageously, once solidified, a high mineral content can be achieved, with the inorganic mineral crystals embedded within the collagen fibers (intrafibrillarly) and oriented such that they are aligned along the long axes of the fibers of the organic matrix, thereby closely mimicking the natural structure of bone.Type: GrantFiled: May 12, 2006Date of Patent: June 16, 2009Assignee: University of Florida Research Foundation, Inc.Inventors: Laurie B. Gower, Matthew J. Olszta, Elliot P. Douglas, Sivakumar Munisamy, Donna L. Wheeler
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Patent number: 7544496Abstract: The subject invention concerns a composite comprising an organic fluid-swellable, fibrous matrix, such as collagen, and a mineral phase, such as calcium carbonate or phosphate mineral phase, for use as a biomimetic of bone. In another aspect, the subject invention concerns a process for making a composite involving the inclusion of acidic polymers to a supersaturated mineralizing solution, in order to induce an amorphous liquid-phase precursor to the inorganic mineral, which is then absorbed (pulled by capillary action) into the organic matrix. Advantageously, once solidified, a high mineral content can be achieved, with the inorganic mineral crystals embedded within the collagen fibers (intrafibrillarly) and oriented such that they are aligned along the long axes of the fibers of the organic matrix, thereby closely mimicking the natural structure of bone.Type: GrantFiled: May 12, 2006Date of Patent: June 9, 2009Assignee: University of Florida Research Foundation, Inc.Inventors: Laurie B. Gower, Matthew J. Olszta, Elliot P. Douglas, Sivakumar Munisamy, Donna L. Wheeler
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Publication number: 20090098627Abstract: A mutant hydrolase optionally fused to a protein of interest is provided. The mutant hydrolase is capable of forming a bond with a substrate for the corresponding nonmutant (wild-type) hydrolase which is more stable than the bond formed between the wild-type hydrolase and the substrate and has at least two amino acid substitutions relative to the wild-type hydrolase. Substrates for hydrolases comprising one or more functional groups are also provided, as well as methods of using the mutant hydrolase and the substrates of the invention. Also provided is a fusion protein capable of forming a stable bond with a substrate and cells which express the fusion protein.Type: ApplicationFiled: July 24, 2008Publication date: April 16, 2009Inventors: Aldis Darzins, Lance Encell, Tonny Johnson, Dieter Klaubert, Georgyi V. Los, Mark McDougall, Keith V. Wood, Monika G. Wood, Chad Zimprich
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Patent number: 7514249Abstract: The subject invention concerns a composite comprising an organic fluid-swellable, fibrous matrix, such as collagen, and a mineral phase, such as calcium carbonate or phosphate mineral phase, for use as a biomimetic of bone. In another aspect, the subject invention concerns a process for making a composite involving the inclusion of acidic polymers to a supersaturated mineralizing solution, in order to induce an amorphous liquid-phase precursor to the inorganic mineral, which is then absorbed (pulled by capillary action) into the organic matrix. Advantageously, once solidified, a high mineral content can be achieved, with the inorganic mineral crystals embedded within the collagen fibers (intrafibrillarly) and oriented such that they are aligned along the long axes of the fibers of the organic matrix, thereby closely mimicking the natural structure of bone.Type: GrantFiled: October 22, 2003Date of Patent: April 7, 2009Assignee: The University of Florida Research Foundation, Inc.Inventors: Laurie B. Gower, Matthew J. Olszta, Elliot P. Douglas, Sivakumar Munisamy, Donna L. Wheeler
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Patent number: 7514248Abstract: The subject invention concerns a composite comprising an organic fluid-swellable matrix, such as collagen, and mineral phase, such as calcium carbonate or phosphate mineral phase, for use as a biomimetic of bone. In another aspect, the subject invention concerns a process for making a composite involving the inclusion of acidic polymers to a supersaturated mineralizing solution, in order to induce an amorphous liquid-phase precursor to the inorganic mineral, which is then absorbed (pulled by capillary action) into the interstices of the organic matrix, and subsequently mineralizes via solidification and crystallization of the precursor phase. The present invention further concerns a method of treating a patient suffering from a bone defect by applying a biomimetic composite to the bone defect site.Type: GrantFiled: April 18, 2003Date of Patent: April 7, 2009Assignee: University of Florida Research Foundation, Inc.Inventors: Laurie B. Gower, Matthew J. Olszta, Elliot P. Douglas, Sivakumar Munisamy, Donna L. Wheeler
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Patent number: 7427497Abstract: Disclosed herein is a microfluidics device that can be used to prepare natural products and their analogs. The device comprises the enzymes of a biosynthetic pathway immobilized thereon and a means for sequentially directing a starting material and each ensuing reaction product to the enzymes of the biosynthetic pathway in the order corresponding to the steps of the biosynthetic pathway. The device can thus be used to prepare the natural product using the natural starting material of the biosynthetic pathway or analogs of the natural product using an unnatural starting material. Alternatively, artificial pathways can be created by immobilizing an appropriate selection of enzymes on the device in an order whereby each subsequent enzyme can catalyze a reaction with the product of the prior enzyme. Novel chemical entities can be prepared from these artificial pathways.Type: GrantFiled: November 1, 2002Date of Patent: September 23, 2008Assignees: Rensselaer Polytechnic Institute, Darpa, The Regents of the University of CaliforniaInventors: Jonathan S. Dordick, Aravind Srinivasan, Jungbae Kim, David H. Sherman, Douglas S. Clark
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Patent number: 7423010Abstract: 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 delivery of such compounds to specific sites intracellularly. The invention specifically relates to methods of facilitating the entry of antiviral and antimicrobial drugs and other agents into phagocytic cells and for targeting such compounds to specific organelles within the cell. The invention specifically provides compositions of matter and pharmaceutical embodiments of such compositions comprising conjugates of such antimicrobial drugs and agents covalently linked to particulate carriers generally termed microparticles. In particular embodiments, the antimicrobial drug is covalently linked to a microparticle via a cleavable linker moiety that is non-specifically cleaved in a phagocytic cell.Type: GrantFiled: February 22, 2005Date of Patent: September 9, 2008Assignee: Oregon Health & Science UniversityInventors: Milton Yatvin, Michael Stowell, Vincent Gallicchio, Michael Meredith
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Publication number: 20080145882Abstract: The invention provides a mutant hydrolase protein with enhanced kinetics and functional expression, as well as polynucleotides encoding the mutant proteins and methods of using the polynucleotides and mutant proteins.Type: ApplicationFiled: October 30, 2007Publication date: June 19, 2008Inventors: Aldis Darzins, Lance P. Encell, Rachel Friedman Ohana, Paul Otto, Gediminas Vidugiris, Keith V. Wood, Monika G. Wood, Kris Zimmerman, Michael R. Slater, Kate Qin Zhao
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Patent number: 7276232Abstract: The present invention relates to compositions containing different stages of pathogenic protozoans in a gel and to their use for controlling rodents.Type: GrantFiled: May 4, 2001Date of Patent: October 2, 2007Assignee: Bayer CropScience AGInventors: Jochen Kalbe, Thomas Böcker, Stefan Endepols, Thomas Jäkel, Sermasakdi Hongnark
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Patent number: 7195923Abstract: The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the glycosylated protein, or the glycoprotein. The method incorporates lateral flow test strip or vertical flow test strip devices having negatively charged carboxyl or carboxylate groups and hydroxyboryl groups immobilized and interspersed on a solid support matrix. The solid support matrix may include derivatives of cellulose (e.g., carboxy cellulose) derivatized with carboxylic acid (e.g., carboxylate, carboxyl) groups and hydroxyboryl compounds including phenylboronic acid (e.g., phenylborate), aminophenylboronic acid, boric acid (e.g., borate), or other boronic acid (e.g., boronate) compounds. The present invention is usefi.il for monitoring glycation or glycosylation of hemoglobin or albumin for monitoring glycemic control (e.g., glycemia in diabetes).Type: GrantFiled: January 31, 2002Date of Patent: March 27, 2007Assignee: Scripps Laboratories, Inc.Inventors: Ralph P. McCroskey, Cameron E. Melton
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Patent number: 7122176Abstract: The present invention utilizes the pre-sporulation (preconidial) mycelial stage of entomopathogenic fungi as insect attractants and/or pathogens. The fungus can be cultivated on grain, wood, agricultural wastes or other cellulosic material, attracting the insect and optionally introducing insect-specific pathogenic fungi. More than one fungus and substrate can be used in combination. The matrix of preconidial fungi can optionally be dried, freeze-dried, cooled and/or pelletized and packaged and reactivated for use as an effective insect attractant and/or biopesticide. Attractant extracts of the preconidial entomopathogenic mycelium are disclosed.Type: GrantFiled: October 1, 2001Date of Patent: October 17, 2006Assignee: Mycosys, LLCInventor: Paul Edward Stamets
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Patent number: 7115735Abstract: The object of the present invention is to provide a novel dehydrogenase having a property which is different from that of known dehydrogenases. The present invention provides a dehydrogenase having the following physicochemical properties: (1) effect: to produce N-alkyl-L-alanine from pyruvic acid and alkylamine or dialkylamine using NADPH and/or NADH as coenzyme; (2) substrate specificity: to show activity to alkylamine or dialkylamine but not to ammonium; (3) optimal pH when using phenylpyruvic acid and methylamine as substrates is around 10; and (4) when treated at 30 ° C. for 30 minutes, the enzyme is stable at around pH 5 to 10.5.Type: GrantFiled: August 27, 2004Date of Patent: October 3, 2006Assignee: Mitsubishi Chemical CorporationInventors: Nobuyoshi Esaki, Hisaaki Mihara, Mari Hara, Makoto Ueda
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Patent number: 7112453Abstract: This invention provides methods of retentate chromatography for resolving analytes in a sample. The methods involve adsorbing the analytes to a substrate under a plurality of different selectivity conditions, and detecting the analytes retained on the substrate by desorption spectrometry. The methods are useful in biology and medicine, including clinical diagnostics and drug discovery.Type: GrantFiled: August 5, 2002Date of Patent: September 26, 2006Assignee: Ciphergen Biosystems, Inc.Inventors: T. William Hutchens, Tai-Tung Yip
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Patent number: 7105339Abstract: This invention provides methods of retentate chromatography for resolving analytes in a sample. The methods involve adsorbing the analytes to a substrate under a plurality of different selectivity conditions, and detecting the analytes retained on the substrate by desorption spectrometry. The methods are useful in biology and medicine, including clinical diagnostics and drug discovery.Type: GrantFiled: July 23, 2003Date of Patent: September 12, 2006Assignee: Ciphergen Biosystems, Inc.Inventors: T. William Hutchens, Tai-Tung Yip
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Patent number: 7070941Abstract: The invention provides methods and compositions for azide tagging of biomolecules. In one embodiment of the invention, proteins are tagged by metabolic incorporation of prenylated azido-analog substrates. Examples of such analogs are azido farnesyl diphosphate and azido farnesyl alcohol. The azido moiety in the resulting modified proteins provides an affinity tag, which can be chemoselectively captured by an azide-specific conjugation reaction, such as the Staudinger reaction, using a phosphine capture reagent. When the capture agent is biotinylated, the resulting conjugates can be detected and affinity-purified by streptavidin-linked- HRP and streptavidin-conjugated agarose beads, respectively. The invention allows detection and isolation of proteins with high yield, high specificity, and low contamination without harsh treatment of proteins.Type: GrantFiled: November 17, 2003Date of Patent: July 4, 2006Assignee: Board of Regents, The University of Texas SystemInventors: Yingming Zhao, John R. Falck
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Patent number: 7008634Abstract: Described are compositions with tethered growth effector molecules, and methods of using these compositions for growing cells and tissues. Growth effector molecules, including growth factors and extracellular matrix molecules, are flexibly tethered to a solid substrate. The compositions can be used either in vitro or in vivo to grow cells and tissues. By tethering the growth factors, they will not diffuse away from the desired location. By making the attachment flexible, the growth effector molecules can more naturally bind to cell surface receptors. A significant feature of these compositions and methods is that they enhance the biological response to the growth factors. The method also offers other advantages over the traditional methods, in which growth factors are delivered in soluble form: (1) the growth factor is localized to a desired target cell population; (2) significantly less growth factor is needed to exert a biologic response.Type: GrantFiled: March 3, 1995Date of Patent: March 7, 2006Assignee: Massachusetts Institute of TechnologyInventors: Linda G. Cima, Edward W. Merrill, Philip R. Kuhl
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Patent number: 6955903Abstract: A preblend for making lactase tablets is prepared containing about 1-99% (preferably about 200-60%) by weight lactase and about 1-99% (preferably about 40-80%) by weight microcrystalline cellulose. Lactase used in the preblend may be in combination with up to about 4 parts (preferably about 0.5-2 parts) by weight cutting agent such as sugars, starches, cellulose, and inorganic salts for each part by weight lactase. About 0.5-4% by weight lubricant such as magnesium stearate may be present in the preblend. A preferred preblend contains about 9.6 weight percent lactase and about 90 weight percent microcrystalline cellulose, or about 2000 to about 9000 FCC lactase units and from about 40 to about 80 weight percent microcrystalline cellulose. Another preferred preblend contains about 9.6 weight percent lactase, about 30.0 weight percent microcrystalline cellulose and about 59.4 weight percent mannitol. Each preblend may also contain magnesium stearate.Type: GrantFiled: November 2, 2001Date of Patent: October 18, 2005Assignee: McNeil-PPCInventors: Sunanda R. Kulkarni, Robert T. McFadden, David H. Rogers, James T. Walter, Jr.
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Patent number: 6939681Abstract: The invention relates to a method of evaluating the immunological status of a subject comprising the steps of 1) determining the content of an antibody in a liquid sample from the subject using an immunoassay, wherein the reaction between the antibody of the sample and a ligand in the form of an antigen, an antibody or a hapten, the ligand being directed to the Fab region of the sample antibody, is carried out in the presence of other constituents of the sample to obtain a measurement 1, 2) determining the content of an antibody in the liquid sample using an immunoassay, wherein the reaction between the antibody of the sample and a ligand in the form of an antigen, an antibody or a hapten, the ligand being directed to the Fab region of the sample antibody, is carried out in the absence of other constituents of the sample to obtain a measurement 2, and 3) interrelating measurements 1 and 2 to express the interference and using the interference as a parameter for evaluating the immunological status of the subjeType: GrantFiled: February 28, 2002Date of Patent: September 6, 2005Assignee: Alk-Abello A/SInventors: Hans-Henrik Ipsen, Niels Johansen, Rikke Morkeberg, Soren Bogestrand, Tine Charlotte Beck
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Patent number: 6927051Abstract: An enzymatic chemical process comprising the steps of providing a biphasic liquid medium that includes one polar phase and one nonpolar phase in contact with each other, wherein at least one of the phases includes reactants, and adding a polymer-protein surfactant to the biphasic liquid medium, whereby the polymer-protein surfactant will self-assemble at the interface between the polar and nonpolar phases and catalyze reactions involving the reactants.Type: GrantFiled: April 4, 2002Date of Patent: August 9, 2005Assignee: The University of AkronInventor: Ping Wang
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Patent number: 6893850Abstract: The present invention provides a masking system for selectively applying cells to predetermined regions of a surface. A mask is positioned adjacent to a surface to cover some portions of the surface while allowing other portions of the surface to remain uncovered. Cells then are applied to uncovered portions of the surface and the mask removed. Alternatively, a cell-adhesion promoter is applied to uncovered portions of the surface, and then cells are applied to the surface before or after removal of the mask from the surface. The masking system can be pre-coated, at least on those surfaces which will come into contact with cells, with a cell-adhesion inhibitor to resist absorption of cells and thereby avoid cell damage when the mask is removed (if cells are deposited prior to removal of the mask). A polymeric elastomeric mask that comes into cohesive-conformal contact with a surface to be patterned can be used.Type: GrantFiled: March 15, 2001Date of Patent: May 17, 2005Assignee: President and Fellows of Harvard CollegeInventors: Emanuele Ostuni, Ravi Kane, George M. Whitesides, Rebecca J. Jackman, David C. Duffy
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Patent number: 6884628Abstract: Multifunctional, polyionic copolymers with molecular architectures and properties optimized for specific applications are synthesized on/or applied to substrate surfaces for analytical and sensing purposes. The coatings are particularly useful for suppression of non-specific interaction, adsorption or attachment of molecular or ionic components present in an analyte solution. Chemical, biochemical or biological groups that are able to recognize, interact with and bind specifically to target molecules in the material containing the analyte to be detected can be coupled to, integrated into, or absorbed to the multifunctional copolymers. These multifunctional copolymer coatings are compatible with a variety of different established methods to detect, sense and quantify the target molecule in an analyte.Type: GrantFiled: April 28, 2000Date of Patent: April 26, 2005Assignees: Eidgenossische Technische Hochschule Zurich, Universitat ZurichInventors: Jeffrey A. Hubbell, Marcus Textor, Donald L. Elbert, Stephanie Finken, Rolf Hofer, Nicholas D. Spencer, Laurence Ruiz-Taylor
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Patent number: 6858582Abstract: Methods and reagents are provided for specifically targeting biologically active compounds such as antiviral and antimicrobial drugs, or prodrugs containing the biologically active compound to specific sites such as specific organelles in phagocytic mammalian cells. The biologically active compound or prodrug is linked to a microparticle with a linker that is non-specifically or specifically cleaved inside a phagocytic mammalian cell. Alternatively, the biologically active compound or prodrug is impregnated into a porous microparticle or coated on a nonporous microparticle, and then coated with a coating material that is non-specifically or specifically degraded inside a phagocytic mammalian cell. The prodrug contains the biologically active compound linked to a polar lipid such as ceramide with a specific linker such as a peptide that is specifically cleaved to activate the prodrug in a phagocytic mammalian cell infected with a microorganism.Type: GrantFiled: January 15, 2002Date of Patent: February 22, 2005Assignee: Oregon Health and Sciences UniversityInventors: Milton B. Yatvin, Michael HB Stowell, Vincent S. Gallicchio, Michael J. Meredith
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Patent number: 6812000Abstract: This invention relates to a bioprocess engineering solution for a product removal process for use in a biofermentation. The invention discloses a process for withdrawing an aliquot of broth from a biofermentation vessel during at least a portion of the biofermentation, removing biocatalyst and water, chromatographically separating biofermentation products from the withdrawn broth using water as an eluent, and returning the remaining components of the broth back to the biofermentation vessel. Process chromatography permits highly selective separation of the target molecule, preventing feedback inhibition of the biofermentation.Type: GrantFiled: April 22, 2002Date of Patent: November 2, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Antoinette E. Wilkins, David J. Lowe
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Patent number: 6808557Abstract: A regenerated cellulose-encapsulated active substance and a method for encapsulating an active substance in a regenerated cellulose matrix are disclosed. The distribution of the active substance is preferably substantially homogeneous within the matrix of regenerated cellulose. The regenerated cellulose (i) has about the same molecular weight as the original cellulose from which it is prepared (ii) is substantially free of added substituent groups relative to the starting cellulose and is also substantially free of entrapped ionic liquid degradation products.Type: GrantFiled: March 21, 2003Date of Patent: October 26, 2004Assignees: The University of Alabama, PG Research FoundationInventors: John David Holbrey, Scott K. Spear, Megan B. Turner, Richard Patrick Swatloski, Robin Don Rogers
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Patent number: 6790652Abstract: A method and apparatus for screening an array of test compounds for bioactivity by contacting an array of test compounds with a detector layer capable of detecting bioactivity, and detecting a detector layer response. The detector layer is comprised of physiologically viable cells. The method and apparatus allow a large number of test compounds to be simultaneously assayed in parallel without the need for complex fluidic devices.Type: GrantFiled: January 8, 1999Date of Patent: September 14, 2004Assignee: BioImage A/SInventors: Bernard Robert Terry, Kurt Marshall Scudder, Per Olaf Gunnar Arkhammer, Ole Thastrup
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Patent number: 6787150Abstract: Pasture grass and legume seeds are protected with an outer coating of insoluble fatty acid salts. The coated seeds are fed to ruminants and bypass their digestive tract. When the coated seeds exit the digestive tract in the manure, they provide ranchers a no-till broadcast technique to easily reseed or improve pasture forage. Legume seeds are preferably coated twice, first with Rhizobia and then with the insoluble fatty acid salts. The Rhizobia coating will improve the legume rate of growth. Alternatively, discreet particles of Rhizobia can be coated with insoluble fatty acid salts and fed to the ruminants along with coated legume seeds.Type: GrantFiled: July 22, 2002Date of Patent: September 7, 2004Assignee: KES AssociatesInventor: Alfred E. Benton
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Patent number: 6723539Abstract: An adsorbent medium is prepared comprising particles of a sponge material made of cellulose or agarose carrying functional groups such as diethylaminoethane groups. The particles may be obtained by chopping a larger block of the sponge material. The medium preferably has a water retention value of greater than 6 ml/g and a particle size of 0.5 to 10 mm, and the sponge material may be cross-linked. The adsorbent medium is especially useful for purifying DNA in an aqueous sample.Type: GrantFiled: August 13, 2001Date of Patent: April 20, 2004Assignee: BioProcessing, Ltd.Inventors: Katherine Louise Angus, David Alan Hutton, Robert John Noel, Linda Taylor
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Patent number: 6709762Abstract: The invention provides a sewage purification assist toilet paper that carries pineapple enzyme and at least one powdery additive selected from slag, porous ore, and activated carbon. The pineapple enzyme and additive decompose salinity and chlorides contained in toilet sewage which otherwise would inhibit the growth of microorganisms used in the biological treatment of sewage taking place not only in individual septic tanks but also in public sewage systems.Type: GrantFiled: August 2, 2001Date of Patent: March 23, 2004Inventor: Shizuo Uyama
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Patent number: 6689588Abstract: Immobilized garlic alliinase wherein the alliinase is chemically, physically or biologically immobilized, is useful in a method for continuous production of allicin. The method comprises adding a solution of alliin as substrate to a column containing the immobilized garlic alliinase and collecting pure allicin in the effluent. The pure allicin is intended for use as food additive or for the preparation of pharmaceutical compositions for the treatment of viral, bacterial, fungal and parasitic infections, high levels of cholesterol and blood lipids, high blood pressure and thrombosis.Type: GrantFiled: September 12, 2000Date of Patent: February 10, 2004Assignee: Yeda Research and Development Co. Ltd.Inventors: David Mirelman, Meir Wilchek, Talia Miron, Aharon Rabinkov, Hephzibah Sivaraman
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Patent number: 6686208Abstract: The invention relates to devices and methods for carrying out quantitative fluorescence immunoassays using evanescent field excitation. Light from at least one light source is directed onto the boundary between two media which have differing refractive indices. The light source emits practically monochromatic light with a wavelength suitable for exciting a marking substance. The light is directed onto a boundary surface disposed between an optically transparent base plate, the refractive index of which is greater than that of the material above the boundary surface, and a receiving region for the sample. The receiving region is covered with a covering plate on the side disposed opposite the base plate, there being arranged between the base plate and covering plate at least one functional layer. A detector for detecting the fluorescent light is disposed on the same side of the base plate as the light source.Type: GrantFiled: August 6, 2002Date of Patent: February 3, 2004Assignee: Institut fur Chemo- und Biosensorik Munster e.V.Inventors: Markus Meusel, Dieter Trau, Andreas Katerkamp
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Patent number: 6680184Abstract: A temperature-stable droplet is provided containing a temperature-stable hydrocolloid membrane. The hydrocolloid membrane encapsulates a liquid that contains at least one enzyme, a cell, a biological agent, a pharmaceutical agent, an immunological agent, or mixtures thereof, and at least one of a locust bean gum, a natural thickening agent, a guar, polyvinylpyrrolidone, Konjac mannan, methylcellulose, hydroxymethylcellulose, calcium gluconate, glucomannan, or mixtures thereof. Preferably, the hydrocolloid membrane comprises at least one of methoxy pectin, Konjac mannan, sodium alginate, or mixtures thereof, and at least one of a locust bean gum, methylcellulose, hydroxymethylcellulose, glucomannan, or mixtures thereof. The hydrocolloid membrane encapsulating the liquid is a thickness capable of holding the liquid without bursting through a temperature range of about −20° C. to about 90° C.Type: GrantFiled: September 29, 1999Date of Patent: January 20, 2004Assignee: Yissum Research & Development Co. of Hebrew UniversityInventor: Amos Nussinovitch
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Patent number: 6660290Abstract: The present invention utilizes the non-sporulating mycelial stage of insect-specific parasitic fungi. The fungus can be present on grain, attracting the pest, and also infecting it through digestion. More than one fungus can be used in combination. The matrix of fungi can be dried or freeze-dried, packaged and reactivated for as an effective bioinsecticide.Type: GrantFiled: October 3, 2000Date of Patent: December 9, 2003Assignee: Myco Pesticides LLCInventor: Paul Edward Stamets
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Patent number: 6620611Abstract: A slow-release solid chemical composition for environmental bioremediation is provided. The composition comprises a source of soluble organic substrates which include sugars, soluble organic polymers and mixtures of them in an amount of 7% to 90%, insoluble organic substrates an amount of 10% to 70%, complex inorganic phosphates in an amount of 0.5% to 7% and soluble organic salts in an amount of 2% to 70%. The insoluble organic substrates include fibrous plant materials, starches, cellulosic materials and mixtures of these substrates. The complex inorganic phosphates include ringed metaphosphates, linear polyphosphates and mixtures. The organic salts include lactates, formates, acetates, citrates, etc. Also the composition further comprises microorganisms which include Bacillus spp., Rhizobium spp., Bradyrhibzobium spp., Fibrobacter spp., Clostridium spp., Pseudomonas. spp., Geobacter spp., Arthrobacter spp., Nocardia, spp., aspergillus spp., Trichoderma spp., Candida spp., Yarrowia spp.Type: GrantFiled: January 6, 2001Date of Patent: September 16, 2003Assignee: Geovation Technologies, Inc.Inventor: Eric Christian Hince
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Patent number: 6602691Abstract: The invention relates to the production of mannitol by bioconversion with the aid of immobilized micro-organisms as well as to the use of the mannitol and by-products formed in the conversion process. In said process a solution containing a substrate convertible into mannitol is fed into contact with solid carrier particles containing viable mannitol-forming microorganism cells immobilized in and/or on said particles. The solution is reconditioned between successive conversion steps in order to provide conversion of a major portion of said substrate into mannitol.Type: GrantFiled: January 9, 2001Date of Patent: August 5, 2003Assignee: Xyrofin OyInventors: Heikki Ojamo, Hannu Koivikko, Heikki Heikkilä
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Patent number: 6583099Abstract: The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm3.Type: GrantFiled: July 1, 2002Date of Patent: June 24, 2003Inventor: Robert I. Christensen, Jr.
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Publication number: 20030096218Abstract: A polymer product useful for adsorbing small molecular size solutes in the presence of large molecular size solutes comprises a matrix polymer, an affinity ligand, and a shielding ligand. The affinity ligand forms complexes with small molecular size solutes, while the shielding ligand prevents large molecular size solutes from forming complexes with the affinity ligand. The matrix polymer, affinity ligand, and shielding ligand are covalently bonded together. The affinity ligand and shielding ligand may both be independently bonded to the matrix polymer, or the affinity ligand may be bonded to the matrix polymer, and the shielding ligand bonded to the affinity ligand.Type: ApplicationFiled: May 7, 2002Publication date: May 22, 2003Applicant: Arizona Bd of Regents/Behalf of Univ. of ArizonaInventors: Roberto Guzman, Jerker Porath
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Patent number: 6555391Abstract: This invention relates methods for conditioning affinity chromatography resins to decrease leaching of the ligand during purification. The methods involve incubating the resin in a buffered solution of a hydroxyalkylamine compound (e.g., ethanolamine) prior to use of the resin for an affinity purification. The treatment removes unstably bound ligand from the resin.Type: GrantFiled: August 15, 2000Date of Patent: April 29, 2003Assignee: Baxter International, Inc.Inventors: Susan L. Bernhard, Robert Toso, Van Taiariol
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Patent number: 6534466Abstract: The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm3.Type: GrantFiled: January 7, 2000Date of Patent: March 18, 2003Assignee: Genencor International, Inc.Inventor: Robert I. Christensen, Jr.
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Publication number: 20030049811Abstract: A process for the preparation of an enzyme-containing granulate is disclosed where an aqueous enzyme-containing liquid is mixed with an edible carbohydrate-based solid carrier, such as starch, mechanically processed into granules, and subsequently dried. This enzyme granulate is suitable for the manufacture of animal feed compositions by mixing feed ingredients with the granulate, treating with steam and pelleting. The compositions optimally show improved enzyme stability during the pelleting process.Type: ApplicationFiled: October 25, 2002Publication date: March 13, 2003Inventors: Rudolph Carolus Maria Barendse, Gabriel Marinus Henricus Meesters, Hans-Peter Harz
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Patent number: 6511798Abstract: Cell based screens for studying drug transport are described and improved methods for the preparation of cell monolayers for use in such screens are disclosed.Type: GrantFiled: March 16, 1999Date of Patent: January 28, 2003Assignee: Zeneca LimitedInventor: Charles Michael Shaw
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Patent number: 6509460Abstract: Novel nucleoside triphosphates, methods of synthesis and process of incorporating these nucleoside triphosphates into oligonucleotides are disclosed.Type: GrantFiled: August 23, 2000Date of Patent: January 21, 2003Assignee: Ribozyme Pharmaceuticals, Inc.Inventors: Leonid Beigelman, Alex Burgin, Amber Beaudry, Alexander Karpeisky, Jasenka Matulic-Adamic, David Sweedler
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Patent number: 6500426Abstract: Enzyme-containing granules for manufacturing animal feed compositions are prepared using a carrier containing at least about 15% (w/w) carbohydrate such as starch and less than 5% (w/w) protein. A mixture is formed containing an enzyme, the carrier and water, with or without prior kneading to improve plasticity, the mixture is mechanically processed such as by extrusion with a basket or dome extruder while not allowing the temperature of the mixture to rise above about 40° C., and drying the resultant enzyme-containing granules. The granules may be spheronised prior to drying, and drying may be in a fluid bed agglomerator. The water and enzyme may be provided as an enzyme-containing aqueous liquid such as an enzyme-containing filtrate from a fermentation process. Enzymes include phytase, endo-xylanase and &bgr;-glucanase. Other components that may be in the granules include divalent cations, cellulose, polyvinyl alcohol and an edible oil.Type: GrantFiled: June 4, 1998Date of Patent: December 31, 2002Inventors: Rudolf Carolus Maria Barendse, Gabriel Marinus Henricus Meesters, Hans-Peter Harz
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Patent number: 6489132Abstract: Methods and apparatus for qualitatively or quantitatively determining one or more analytes in matrices such as foods, biological fluids, etc. An embodiment for determination of a single analyte comprises a sample receiving vessel, a first membrane and a reagent-containing well. The prepared sample passes through the first membrane whereby extraneous matter is removed, and a filtrate enters the reagent-containing well to provide a filtrate-reagent admixture from which the analyte may be determined. An embodiment for determination for multiple analytes includes one or more additional membranes in series with the first membrane, each such additional membrane being operative to capture one or more analytes. Each of the additional analytes may then be eluted from the membrane upon which it has been captured, into a separate reagent-containing well to provide eluant-reagent admixture from which each desired analyte may be determined. Formulations for preparation additives are also included.Type: GrantFiled: September 2, 1999Date of Patent: December 3, 2002Assignee: Safety Associates, Inc.Inventors: Virginia C. Gordon, John T. Sorensen, Soheila Mirhashemi, Michael Mittelstein, John F. Elias
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Patent number: 6475382Abstract: A treatment unit is disclosed for treating a fluid in continuous mode. This treatment unit provides the opportunity to carry out simultaneously an enzymatic transformation and a capture of a fluid element. The unit has a reservoir with a fluid inlet for receiving a fluid to be treated and a fluid outlet for releasing a treated fluid. The unit also has removable cassettes provided with a reactive material for treating the fluid and two spaced-apart baffle walls in the reservoir for regulating the flow of the fluid therein. The unit further has a reaction chamber defined between each of the two spaced-apart baffles walls. The reaction chamber has an opening for removably inserting therein the cassette. Yet, the unit further has mounting means for mounting the cassette in a reaction chamber spaced-apart from the two baffle walls, whereby a cassette is disposed between two spaced-apart baffle walls and causes the fluid to flow in a zigzag pattern thus further regulating the flow of the fluid.Type: GrantFiled: December 19, 2000Date of Patent: November 5, 2002Assignee: CO2 Solution Inc.Inventor: Carmen Parent
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Patent number: 6455063Abstract: A ruminant direct fed microbial composition of matter comprising an acidosis inhibiting effective amount of Propionibacterum P-63 is provided. Also disclosed is a process for reducing acidosis in ruminants or scours in swine by administration of the bacterium to the ruminant or swine. The microbial composition may be administered by itself, or combined with animal feed and/or lactic acid producing cultures.Type: GrantFiled: April 15, 1999Date of Patent: September 24, 2002Assignee: The Board of Regents for Oklahoma State UniversityInventors: Thomas Rehberger, Terry D. Parrott, Fred C. Owens, Charles A. Hibberd
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Patent number: 6444261Abstract: A particle resistant to storage of at least one first and at least one second component, wherein said second component of at least one crosslinkable polymer as a shell at least partially envelops and/or encloses said first component as a core and said first component has at least one ascertainable property, obtainable by reacting said first component with the crosslinkable polymer and subsequently reacting the formed product with a crosslinking agent such that the first component with resistance to storage remains within the second component.Type: GrantFiled: July 20, 1998Date of Patent: September 3, 2002Assignee: Abion Beteiligungs-und Verwaltungsgesellschaft mbHInventors: Dmitri Plaksine, Elena Gromakovskaia, Christoph Erhardt