Multi-enzyme System Patents (Class 435/175)
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Patent number: 11795483Abstract: A nanoplatelet serves as a substrate for immobilizing enzymes involved in consecutive reactions as a cascade. This results in a significant increase in the rate of catalysis as well as final product yield compared to non-immobilized enzymes or enzymes immobilized to quantum dots.Type: GrantFiled: June 11, 2019Date of Patent: October 24, 2023Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Igor L. Medintz, Joyce Breger, Scott Walper, Michael H. Stewart
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Patent number: 11162128Abstract: An apparatus and method for detecting an analyte of interest using paper spray mass spectrometry includes a spray material; a sample on the spray material including an enzyme of interest; a solvent to hydrate the sample, promote enzymatic activity, and extract analytes of interest from the sample; a substrate specific to the enzyme of interest, wherein any of the spray material and the solvent includes the substrate; a voltage source to apply a voltage to the spray material to create charged droplets of a mixture containing the sample; and a mass spectrometer to perform spectrometry on the droplets to perform any of: identify the analytes of interest in the sample; and measure a level of inhibition in any enzymes contained in the sample.Type: GrantFiled: May 10, 2018Date of Patent: November 2, 2021Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Trevor G Glaros, Elizabeth S Dhummakupt, Phillip M. Mach, Daniel O Carmany
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Patent number: 10494662Abstract: Methods of making a three-dimensional matrix of nucleic acids within a cell is provided.Type: GrantFiled: October 18, 2017Date of Patent: December 3, 2019Inventors: George M. Church, Je-Hyuk Lee, Richard C. Terry, Evan R. Daugharthy
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Patent number: 10428362Abstract: A method is disclosed for hydrolyzing an alpha-1,5 glucosyl-fructose linkage in a saccharide (disaccharide or oligosaccharide) such as leucrose. This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase or glucoamylase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,5 glucosyl-fructose linkage of the saccharide. This method is useful for reducing the amount of leucrose in a filtrate isolated from a glucan synthesis reaction, for example.Type: GrantFiled: May 10, 2018Date of Patent: October 1, 2019Assignee: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Kevin D. Nagy, Erwin F. Columbus-Hago, Jayarama K. Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
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Patent number: 9983211Abstract: The present invention provides methods and compositions for labeling, separating and analyzing proteins, particularly a specific protein of interest within a cell lysate or in a mixture of proteins. The proteins are labeled with an amine reactive or thiol reactive fluorescent dye, or an amine reactive fluorogenic reagent that becomes fluorescent upon reacting to amine groups located on the protein. Following the labeling step, the proteins within the mixture can be separated and analyzed. In a further embodiment, a tag binding fluorogenic reagent that can bind to a tag on a tagged protein is added to specifically label the protein of interest.Type: GrantFiled: April 25, 2016Date of Patent: May 29, 2018Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Thomas Diller, Bethany Sutton, George Hanson, Timothy Updyke
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Patent number: 9885034Abstract: Provided herein are methods, compositions, and kits for assays, many of which involve amplification reactions such as digital PCR or droplet digital PCR. The assays may be used for such applications as sequencing, copy number variation analysis, and others. In some cases, the assays involve subdividing a sample into multiple partitions (e.g., droplets) and merging the partitions with other partitions that comprise adaptors with barcodes.Type: GrantFiled: September 22, 2014Date of Patent: February 6, 2018Assignee: Bio-Rad Laboratories, Inc.Inventor: Serge Saxonov
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Patent number: 9868973Abstract: A method for optimizing post-translational modifications of recombinant proteins expressed in living cells is described. More particularly, a method for modulation of host proteins in living cells that control PTMs on recombinant proteins is described that has particularly useful applications in developing manufacturing process changes or in biosimilar development. The goal of this modulation is to produce a recipe for production of a recombinant protein in the new process or in the biosimilar that will produce a targeted PTM profile in the resulting protein product. In the method one or more modulators are selected, as from a modulator library, which affect the activity of host proteins. These modulators are added to media during production such that the resulting product matches the PTMs of the reference product.Type: GrantFiled: January 13, 2015Date of Patent: January 16, 2018Assignee: STC Biologics, Inc.Inventors: Magdalena Leszcyniecka, Sergey Shulga-Morskoy
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Patent number: 9719987Abstract: The present invention relates to methods for determining the probability of transplant rejection based on the determination in the subject recipient of the transplant of the levels of antibodies specific for hyaluronic acid. The invention relates as well to methods for attenuating transplant rejection and compositions to prevent transplant rejection based on the depletion of anti-hyaluronic acid antibodies from the subject.Type: GrantFiled: August 12, 2013Date of Patent: August 1, 2017Assignee: FUNDACIO INSTITUT D'INVESTIGACIO BIOMEDICA DE BELLVITGE (IDIBELL)Inventor: Rafael MaƱez Mendiluce
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Patent number: 9540631Abstract: Compositions are provided to immobilize and protect oxidase enzymes from proteolytic and hydrolytic attack, utilizing a porous, inert organic, or inorganic, substrate matrix useful in generating hydrogen peroxide in situ for use in oral, topical mucosal and intracavity uses for use in or on the human body and other mammalian, reptile, fish and amphibians. The selected porosity of the support matrix provides the basis for generating hydrogen peroxide on a steady state basis. Both diatomaceous earth and silica gel, either in natural or pre-silanized forms, allow for the excluding of non-preferred enzymes from the support matrix, and for diffusion of the peroxide in the reduction of oral pathogens and their attendant malodorous compounds, or other pathogens in the mucosa, bodily fluids and cavities, in addition to oxidizing color bodies to affect bleaching.Type: GrantFiled: July 10, 2008Date of Patent: January 10, 2017Inventors: Peter T. Pugliese, Steven M. Pugliese, Joseph A. Ehrhard
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Publication number: 20150122646Abstract: The present disclosure generally relates to devices and procedures for the development of glucose oxidase-bound electrodes by a covalent binding of glucose oxidase on amine-functionalized electrodes. More particularly, the present disclosure is related to covalently-bound enzyme-coated electrodes that are leach-proof and highly stable for continuous glucose monitoring. The glucose oxidase-bound electrodes are employed for the development of a mediator-less electrochemical glucose sensing procedure having no interference from biological substances and drugs.Type: ApplicationFiled: May 3, 2013Publication date: May 7, 2015Inventors: Khalid Ali Al-Rubeaan, Dan Zheng, Fwu-Shan Sheu, Sandeep Kumar Vashist
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Patent number: 8785151Abstract: Disclosed herein is pyrroline-carboxy-lysine (PCL), a pyrrolysine analogue, which is a natural, biosynthetically generated amino acid, and methods for biosynthetically generating PCL. Also disclosed herein are proteins, polypeptides and peptides that have PCL incorporated therein and methods for incorporating PCL into such proteins, polypeptides and peptides. Also disclosed herein is the site-specific derivatization of proteins, polypeptides and peptides having PCL or pyrrolysine incorporated therein. Also disclosed herein is the crosslinking of proteins, polypeptides and peptides having PCL or pyrrolysine incorporated therein.Type: GrantFiled: October 23, 2009Date of Patent: July 22, 2014Inventors: Bernhard Geierstanger, Weijia Ou, Susan E. Cellitti, Tetsuo Uno, Tiffany Crossgrove, Hsien-Po Chiu, Jan Grunewald, Xueshi Hao
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Patent number: 8765472Abstract: The present invention relates to methods and devices to obtain multicellular arrangements in stable, stationary and reproducible spatial configuration, and optionally with controlled internal cell organization, methods for preparing such devices, methods for studying the cells' shapes, the cells' architectures, the cells' mechanical equilibrium, the cell-cell interaction, the cell movement and migration, the cell differentiation, the global internal cells' organizations, the cells' polarities and division, and/or any function of cells, methods for screening compounds of interest which enhance or inhibit specific cell functions.Type: GrantFiled: October 23, 2009Date of Patent: July 1, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventor: Manuel Thery
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Patent number: 8759055Abstract: A fuel cell is provided with an anode and a cathode. The anode is in electrical communication with an anode enzyme and the cathode is in electrical communication with a cathode enzyme. The anode enzyme is preferably an oxidase or a dehydrogenase. The cathode enzyme is a copper-containing enzyme, such as a lacasse, an ascorbate oxidase, a ceruloplasmine, or a bilirubin oxidase. Preferably, the cathode enzyme is operable under physiological conditions. Redox polymers serve to wire the anode enzyme to the anode and the cathode enzyme to the cathode. The fuel cell can be very small in size because it does not require a membrane, seal, or case. The fuel cell can be used in connection with a biological system, such as a human, as it may operate at physiological conditions. By virtue of its size and operability at physiological conditions, the fuel cell is of particular interest for applications calling for a power source implanted in a human body, such as a variety of medical applications.Type: GrantFiled: January 25, 2008Date of Patent: June 24, 2014Assignee: Abbott Diabetes Care Inc.Inventors: Adam Heller, Nicholas Mano, Hyug-Han Kim, Yongchao Zhang, Fei Mao, Ting Chen, Scott C. Barton
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Publication number: 20140134700Abstract: Provided are nanocomplexes having at least two different enzymes and a polymeric network anchored to at least one of the enzymes. In some embodiments, the activities of the enzymes catalyze a cascade reaction.Type: ApplicationFiled: July 6, 2012Publication date: May 15, 2014Applicant: The Regents of the University of CaliforniaInventors: Yunfeng Lu, Ming Yan, Yang Liu
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Patent number: 8691545Abstract: 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.Type: GrantFiled: October 16, 2012Date of Patent: April 8, 2014Assignee: The Invention Science Fund I, LLCInventors: Ed Harlow, Edward K. Y. Jung, Robert Langer, Eric C. Leuthardt, Lowell L. Wood, Jr.
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Patent number: 8679755Abstract: A first cell mass substantially containing only either one of mesenchymal cells or epithelial cells and a second cell mass substantially containing only the other one of the cells are positioned in contact with each other inside a support carrier which can maintain a condition of cell contact; and cultured to obtain a tooth having a specific cell placement. Preferably, after the culturing, the support carrier having both cell masses is cultured with kidney cells.Type: GrantFiled: December 18, 2012Date of Patent: March 25, 2014Assignee: Organ Technologies Inc.Inventors: Takashi Tsuji, Kazuhisa Nakao
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Publication number: 20130345655Abstract: A sanitary article is provided that includes a dried polymeric matrix with embedded enzyme. The presence of the enzyme in the polymeric matrix allows the sanitary article to absorb a bodily discharge fluid thereby allowing the embedded enzyme to function in the production of antibacterial compounds or by directly reducing the presence of viable bacteria in the discharge fluid. The enzyme activity promotes reduced odor in the sanitary article.Type: ApplicationFiled: June 21, 2012Publication date: December 26, 2013Applicants: Toyota Motor Corporation, Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Publication number: 20130316430Abstract: A PVC surface co-immobilized with the multiple enzymes for removal of stains useful in the field of washing or cleaning cloth and other household textile such as towels and sheets. The present invention also provides a process of preparation of the PVC surfaces and using such PVC surface. The PVC surface co-immobilized with the enzymes is useful as cheap and reusable alternative for washing of cloths.Type: ApplicationFiled: December 7, 2011Publication date: November 28, 2013Applicant: MAHARSHI DAYANAND UNIVERSITYInventors: Chandra Shekhar Pundir, Nidhi Chauhan
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Publication number: 20130309745Abstract: Provided are a porous structure for forming anti-fingerprint coating capable of providing a self-cleaning function to a surface of a substrate, a method of forming anti-fingerprint coating using the same, an anti-fingerprint coated substrate prepared by the same method, and a product including the same. When the porous structure including a lipolytic enzyme is formed on the surface of the substrate, contaminants decomposed by an enzyme are absorbed into a pore, and thus anti-fingerprint coating may be more effectively performed to remove detectable contamination from a surface of the substrate. As a result, contamination by fingerprints on the surface of a display device, the appearance of an electronic device, or building materials can be effectively reduced.Type: ApplicationFiled: July 19, 2013Publication date: November 21, 2013Inventors: Eun Jeong Lee, Hyeon Choi, Taek Ho Yang, Young Jun Hong
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Patent number: 8574880Abstract: This invention relates to a method of immobilizing biocatalysts including protein and cells by co-precipitation with silicate or organosilicate matrices through the action of an organic template molecule. The organic template molecule is in general a polyamine such as polyethylenimine (PEI), or polypeptide compound bearing at least two or three basic residues selected from the group consisting of lysine, arginine, histidine, proline, hydroxyproline, N-methylhistidine, ornithine, taurine, ?-hydroxylysine, and ?-hydroxy-?-N,N,N trimethyllysine. The invention is also directed to a silica biocomposite comprising co-precipitates of active biocatalysts, silica or organosilicates, and an N-containing organic template molecule. Such silica biocomposites are useful in biocatalysis, and other applications requiring an immobilized biocatalyst. Preferred biocatalysts for this invention are enzymes and whole cells.Type: GrantFiled: February 27, 2009Date of Patent: November 5, 2013Assignee: Danisco US, Inc.Inventors: Risha Bond, Michael C. Jewett, Joseph C. McAuliffe, Donald E. Ward, II
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Patent number: 8563245Abstract: A method that modifies surface properties of a substrate by manipulating the immobilized biomolecules in mild biological condition. The manipulation comprised steps of: providing a biomolecule combined with at least one ssDNA combined with a first protein through an affinity binding tag; adding a second ssDNA conjugated with a second protein with a concentration greater than that of the first protein; and replacing the first protein on the ssDNA with the second protein through chemical competitive principle. The invention may comprise the steps with proper design of biotinylated DNA probes, the functionalized ssDNA nanotemplates can be recovered to its unbound state through a thermodynamic principle.Type: GrantFiled: April 2, 2012Date of Patent: October 22, 2013Assignee: National Applied Research LaboratoriesInventors: Ming-Yu Liu, Yuh-Shyong Yang, Yen-Pei Lu, Chih-Heng Lin
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Patent number: 8545697Abstract: A device for the treatment of waste material in a waste water collection system includes an inner core and an outer portion partially surrounding the inner core such that at least one surface of the inner core is exposed. The inner core has a greater water solubility than the outer portion.Type: GrantFiled: August 9, 2012Date of Patent: October 1, 2013Assignee: United Laboratories, Inc.Inventors: Vincent J. Thorgersen, John H. Bacon, Eric D. Frazier
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Patent number: 8535924Abstract: A granule with an allergenic component has reduced dust by including antifoam added during the production of the granule. The antifoam may be dispersed throughout the granule or added to one of the components of the granule. The granule with antifoam produces at least 30% less dust than a comparable granule produced according to a process in which no antifoam is added.Type: GrantFiled: November 3, 2011Date of Patent: September 17, 2013Assignee: Danisco US Inc.Inventors: Douglas A. Dale, Thomas S. Green
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Patent number: 8377664Abstract: The present invention provides a method for producing a useful substance by supplying, to a fixed-bed reactor packed with an immobilized enzyme, a liquid mixture containing two liquid phases, in which the two liquid phases are allowed to flow in an identical, parallel direction, which method employs a fixed-bed reactor equipped with an insertion unit or tubes, so as to form a plurality of lumens in the fixed-bed reactor, each lumen having a cross section of a circular shape with a diameter of 100 mm or less or having a polygonal shape with a diagonal line of 100 mm or less, wherein the lumens are packed with an immobilized enzyme and the liquid mixture is supplied. In a reaction performed by passing a reaction mixture exhibiting two liquid phases through a fixed-bed reactor equipped with an immobilized enzyme, overall flow of the reaction liquid is made uniform.Type: GrantFiled: October 4, 2006Date of Patent: February 19, 2013Assignee: Kao CorporationInventors: Jun Saito, Yoshitaka Senda, Toshiteru Komatsu
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Patent number: 8377669Abstract: The invention is directed to methods and devices for reducing interference from leukocytes in an analyte immunoassay, and in particular in non-competitive immunoassays. In one embodiment, the invention is to a method comprising the steps of (a) amending a biological sample such as a whole blood sample with sacrificial beads; and (b) performing a non-competitive immunoassay on the amended sample to determine the concentration of said analyte in said sample. Preferably, the sample is amended with IgG-coated sacrificial beads.Type: GrantFiled: November 17, 2009Date of Patent: February 19, 2013Assignee: Abbott Point of Care Inc.Inventors: John Lewis Emerson Campbell, Adam Roger Moss, Graham Davis
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Patent number: 8329422Abstract: The methods and reagents described in this invention are used to analyze circulating tumor cells, clusters, fragments, and debris. Analysis is performed with a number of platforms, including flow cytometry and the CELLSPOTTERĀ® fluorescent microscopy imaging system. Analyzing damaged cells has shown to be important. However, there are two sources of damage: in vivo and in vitro. Damage in vivo occurs by apoptosis, necrosis, or immune response. Damage in vitro occurs during sample acquisition, handling, transport, processing, or analysis. It is therefore desirable to confine, reduce, eliminate, or at least qualify in vitro damage to prevent it from interfering in analysis. Described herein are methods to diagnose, monitor, and screen disease based on circulating rare cells, including malignancy as determined by CTC, clusters, fragments, and debris. Also provided are kits for assaying biological specimens using these methods.Type: GrantFiled: November 2, 2010Date of Patent: December 11, 2012Assignee: Veridex LLCInventors: Galla Chandra Rao, Christopher Larson, Madeline Repollet, Herman Rutner, Leon W. M. M. Terstappen, Shawn Mark O'Hara, Steven Gross
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Publication number: 20120301930Abstract: The present invention relates to bio-engineered multi-enzyme complexes having synergistic enzyme activity comprising xylanases and optionally further comprising additional carbohydrate active enzymes. Such complexes are advantageous for degrading recalcitrant cellulosic biomass.Type: ApplicationFiled: February 15, 2011Publication date: November 29, 2012Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Edward A. Bayer, Yoav Barak, Sarah Morais
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Patent number: 8304220Abstract: 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.Type: GrantFiled: October 15, 2007Date of Patent: November 6, 2012Assignee: The Invention Science Fund I, LLCInventors: Ed Harlow, Edward K. Y. Jung, Robert Langer, Eric C. Leuthardt, Lowell L. Wood, Jr.
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Patent number: 8298425Abstract: A methodology, and related systems and structures for accomplishing the methodology, of biological remediation of hazardous or undesirable organic matter, wherein a plurality of carrier members are disposed in a localized retaining member, the carrier members releasing or exposing microorganisms to the undesirable organic matter on a staggered basis over an extended period of time, the microorganisms being capable of biologically remediating the undesirable organic matter by utilizing the organic matter as a food source, thereby converting it into environmentally safe bi-products. Carrier members containing nutrients necessary for the survival of the microorganisms and having release times corresponding to the release times of the microorganisms are also provided to insure that the microorganisms remain viable upon release.Type: GrantFiled: April 30, 2010Date of Patent: October 30, 2012Inventor: Mark D. Shaw
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Patent number: 8252570Abstract: 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.Type: GrantFiled: September 12, 2007Date of Patent: August 28, 2012Assignee: The Invention Science Fund I, LLCInventors: Ed Harlow, Edward K. Y. Jung, Robert Langer, Eric C. Leuthardt, Lowell L. Wood, Jr.
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Patent number: 8252560Abstract: The present invention relates to a process for producing a fatty acid, which includes feeding a liquid mixture formed of two liquid phases that flow in a co-current manner into a fixed bed-type reaction column packed with immobilized lipase, and performing a hydrolysis reaction when the two liquid phases are in contact with the immobilized lipase in the fixed-bed reaction column; wherein the fixed-bed reaction column comprises partition plates so as to comprise a plurality of tube- shaped structures, wherein each tube-shaped structure has a cross -section which is rectangular, circular, oval, or polygonal in shape with at least a part being unclosed and the cross-section has a representative length of 100 mm or less.Type: GrantFiled: December 14, 2007Date of Patent: August 28, 2012Assignee: Kao CorporationInventors: Jun Saito, Yoshitaka Senda, Keigo Hanaki, Toshiteru Komatsu
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Patent number: 8236518Abstract: Disclosed are antibodies that selectively bind to blood coagulation factor FVIII, and highly sensitive immunological assays comprising these antibodies. Preferred assays can detect FVIII at about 3500-fold below the normal physiological levels, and have a wide array of applications including accurate monitoring of FVIII concentration in pharmaceutical products for treatment of blood coagulation disorders, and determination of FVIII levels in plasma of human patients, including those with blood coagulation disorders such as hemophilia.Type: GrantFiled: July 13, 2006Date of Patent: August 7, 2012Assignee: The University of Vermont and State Agriculture CollegeInventors: Behnaz Parhami-Seren, Kenneth G. Mann, David N. Fass
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Publication number: 20120177913Abstract: Provided are a novel use of a lipolytic enzyme for forming anti-fingerprint coating, a method of forming anti-fingerprint coating including treating a substrate with a composition comprising the lipolytic enzyme, a substrate including the anti-fingerprint coating formed by the same method, and a product including the same. The anti-fingerprint coating can reduce contamination of display devices, appearances of electronic devices or building materials by fingerpris.Type: ApplicationFiled: September 17, 2010Publication date: July 12, 2012Inventors: Eun Jeong Lee, Young Jun Hong, Hveon Choi, Taek Ho Yang
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Publication number: 20120040395Abstract: Enzyme catalyst immobilized on porous flouropolymer supports. Catalytically active enzymes can be bound to a variety of fluoropolymer supports for use as a reaction catalyst. Moreover, consistently high rate of conversion during catalyst re-use over time is achieved. Furthermore, inactive enzyme catalyst can be stripped from the support and fresh enzyme can be bound to the support to achieve the original conversion rate. The immobilization of catalytic enzymes on porous fluoropolymers is a viable and novel technology for the preparation of advantaged catalysts.Type: ApplicationFiled: August 12, 2010Publication date: February 16, 2012Applicant: EASTMAN CHEMICAL COMPANYInventor: Stephanie Kay Clendennen
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Patent number: 8114647Abstract: 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.Type: GrantFiled: October 18, 2007Date of Patent: February 14, 2012Assignee: The Invention Science Fund I, LLCInventors: Ed Harlow, Roderick A. Hyde, Edward K. Y. Jung, Robert Langer, Eric C. Leuthardt, Lowell L. Wood, Jr.
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Patent number: 8076113Abstract: A granule with an allergenic component has reduced dust by including antifoam added during the production of the granule. The antifoam may be dispersed throughout the granule or added to one of the components of the granule. The granule with antifoam produces at least 30% less dust than a comparable granule produced according to a process in which no antifoam is added.Type: GrantFiled: April 1, 2002Date of Patent: December 13, 2011Assignee: Danisco US Inc.Inventors: Douglas A. Dale, Thomas S. Green
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Publication number: 20110262963Abstract: Disclosed herein is pyrroline-carboxy-lysine (PCL), a pyrrolysine analogue, which is a natural, biosynthetically generated amino acid, and methods for biosynthetically generating PCL. Also disclosed herein are proteins, polypeptides and peptides that have PCL incorporated therein and methods for incorporating PCL into such proteins, polypeptides and peptides. Also disclosed herein is the site-specific derivatization of proteins, polypeptides and peptides having PCL or pyrrolysine incorporated therein. Also disclosed herein is the crosslinking of proteins, polypeptides and peptides having PCL or pyrrolysine incorporated therein.Type: ApplicationFiled: October 23, 2009Publication date: October 27, 2011Inventors: Bernhard Geierstanger, Weijia Ou, Susan E. Cellitti, Tetsuo Uno, Tiffany Crossgrove, Hsien-Po Chiu, Jan Grunewald, Xueshi Hao
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Patent number: 7993890Abstract: The present invention relates to a process for enzymatic hydrolysis of arabinoxylan, and an enzyme composition suitable for use in such a process.Type: GrantFiled: April 25, 2006Date of Patent: August 9, 2011Assignee: Novozymes A/SInventors: Hanne Risbjerg Soerensen, Sven Pedersen, Anders Viksoe-Nielsen, Christel Thea Joergensen, Lars Hylling Christensen, Christian Isak Joergensen, Carsten Hoerslev Hansen, Lene Venke Kofod
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Publication number: 20110059373Abstract: The present invention relates to a system for production of ATP. This system is comprised of a support and one or more enzymes coupled to that support which are capable of collectively producing ATP from glucose or fructose metabolism. The present invention is additionally directed to a device, which includes the system, and to a method for carrying out a reaction involving the conversion of ATP to ADP using the system.Type: ApplicationFiled: October 16, 2008Publication date: March 10, 2011Applicant: Cornell Research Foundation, Inc.Inventor: Alexander Travis
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Patent number: 7867740Abstract: Nucleic acids encoding Thermotoga maritima mannitol dehydrogenase and the Thermotoga maritima mannitol dehydrogenase polypeptide are disclosed. Further provided are an electrochemical bioreactor system and a bioreactor electrode that can be used to convert glucose or fructose to mannitol.Type: GrantFiled: August 10, 2007Date of Patent: January 11, 2011Assignee: Board of Trustees of Michigan State UniversityInventors: Claire Vieille, Seung Hoon Song, J. Gregory Zeikus
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Patent number: 7855062Abstract: 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.Type: GrantFiled: December 14, 2005Date of Patent: December 21, 2010Assignee: The Invention Science Fund I, LLCInventors: Ed Harlow, Edward K. Y. Jung, Robert Langer, Eric C. Leuthardt, Lowell L. Wood, Jr.
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Patent number: 7846748Abstract: The present invention provides methods of quantifying the amount or concentration of one or more peptides and/or proteins in one or more samples using differentially isotopically-labeled peptides and/or proteins. The invention also provides methods of identifying one or more peptides and/or proteins in one or more samples.Type: GrantFiled: April 11, 2003Date of Patent: December 7, 2010Assignee: The University of North Carolina at Chapel HillInventor: Christoph H. Borchers
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Patent number: 7811796Abstract: A multilayer enzyme immobilization process is provided comprising adsorbing a polyethyleneimine (PEI) solution in a fibrous matrix, and adding an enzyme to the fibrous matrix, which comprises a plurality of fibrils. The process further comprises forming at least two layers of PEI-enzyme aggregates on the fibrils, and cross-linking the multilayer PEI-enzyme aggregates. The process can further comprise washing the fibrils containing the cross-linked PEI-enzyme aggregates with distilled water and acetic acid buffer subsequent to cross-linking. However, the PEI-containing matrix is not washed prior to the addition of enzyme. The enzyme can be ?-galactosidase and the fibrous matrix can be cotton cloth. The multilayer immobilized enzyme can be employed in a biocatalyst reactor for production of galacto-oligosaccharides from lactose and the hydrolysis of lactose to glucose and galactose.Type: GrantFiled: December 4, 2006Date of Patent: October 12, 2010Assignee: The Ohio State University Research FoundationInventors: Shang-Tian Yang, Nedim Albayrak
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Patent number: 7691617Abstract: The present invention relates to an acid-stable alpha amylase (asAA) derived from a strain of Aspergillus kawachi, which has granular starch hydrolyzing (GSH) activity, the heterologous expression of the asAA having GSH activity in filamentous fungal host cells and enzyme compositions including the same which optionally include glucoamylase.Type: GrantFiled: January 30, 2008Date of Patent: April 6, 2010Assignee: Danisco US Inc.Inventors: Nigel Dunn-Coleman, Susan M. Fiske, Suzanne E. Lantz, Paulien Neefe-Kruithof, Michael J. Pepsin, Jayarama K. Shetty
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Publication number: 20100021986Abstract: Provided is a cell chip for exposing to a portion of each of cells microdroplets dispensed with an inkjet printer or the like in a screening test of the effect of a substance on cells by using an apparatus for introducing the substance into cells including: a cell-immobilizing support including a substrate having through-holes penetrating from one side to the other side of the substrate and including cells immobilized in the through-holes so as to block up the through-holes; a liquid phase region present in contact with one side of the support and including a medium of the cells; and a mechanism present so as to face the other side of the support and imparting a microdroplet to a portion of each of the cells exposed in the openings on the other side.Type: ApplicationFiled: January 17, 2008Publication date: January 28, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kouichi Kato, Atsushi Takahashi
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Patent number: 7585659Abstract: Described herein is a novel three domain gene from Schizochytrium, denoted carotene synthase, that encodes a protein with three different enzymatic activities: phytoene dehydrogenase (PD), phytoene synthase (PS), and lycopene cyclase (LC). Also described is the isolated gene encoding the carotene synthase, homologues thereof, the enzyme encoded by such gene, biologically active portions and homologues thereof, recombinant nucleic acid molecules, microorganisms and plants that have been genetically modified to increase or decrease the action of such gene, and methods of producing carotenoids and derivatives thereof or methods of producing microorganisms and lipid products lacking pigmentation using the knowledge of the carotene synthase described herein.Type: GrantFiled: November 8, 2006Date of Patent: September 8, 2009Assignee: Martek Biosciences CorporationInventors: Craig A. Weaver, James G. Metz, Jerry M. Kuner, Frank H. Overton, Jr.
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Patent number: 7582451Abstract: Described herein is a novel three domain gene from Schizochytrium, denoted carotene synthase, that encodes a protein with three different enzymatic activities: phytoene dehydrogenase (PD), phytoene synthase (PS), and lycopene cyclase (LC). Also described is the isolated gene encoding the carotene synthase, homologues thereof, the enzyme encoded by such gene, biologically active portions and homologues thereof, recombinant nucleic acid molecules, microorganisms and plants that have been genetically modified to increase or decrease the action of such gene, and methods of producing carotenoids and derivatives thereof or methods of producing microorganisms and lipid products lacking pigmentation using the knowledge of the carotene synthase described herein.Type: GrantFiled: November 8, 2006Date of Patent: September 1, 2009Assignee: Martek Biosciences CorporationInventors: Craig A. Weaver, James G. Metz, Jerry M. Kuner, Frank H. Overton, Jr.
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Patent number: 7544438Abstract: An object of the present invention is to provide a highly functional mediator capable of smoothly proceeding electron transfer between an electrode and a biocatalyst based on the premise that the mediator excels in safety and cost and to provide an electrode and a cell with sufficient amount of such a mediator molecule immobilized efficiently and strongly. The present invention provides a mediator mediating electron transfer between an enzyme and an electrode and containing a quinone molecule derivative, in particular, a mediator containing a VK3 derivative. In addition, the present invention provides an electrode and a biofuel cell to which those mediators are applied.Type: GrantFiled: March 23, 2004Date of Patent: June 9, 2009Assignee: Daiichi Pure Chemicals Co., LtdInventors: Matsuhiko Nishizawa, Tomokazu Matsue, Jun-ichi Kosuge, Noboru Fukasaku
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Publication number: 20080274527Abstract: The present invention relates to a process for enzymatic hydrolysis of arabinoxylan, and an enzyme composition suitable for use in such a process.Type: ApplicationFiled: April 25, 2006Publication date: November 6, 2008Applicant: Novozymes A/SInventors: Hanne Risbjerg Soerensen, Sven Pedersen, Anders Viksoe-Nielsen, Christel Thea Joergensen, Lars Hylling Christensen, Christian Isak Joergensen, Carsten Hoerslev Hansen, Lene Venke Kofod
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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