Patents Examined by Bin Shen
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Patent number: 11892446Abstract: Systems and methods are provided for simultaneously assaying cell adhesion or cell rolling for multiple cell specimens. One embodiment provides a system for assaying adhesion or cell rolling of multiple cell specimens that includes a confocal imaging system containing a parallel plate flow chamber, a pump in fluid communication with the parallel plate flow chamber via a flow chamber inlet line and a cell suspension in fluid communication with the parallel plate flow chamber via a flow chamber outlet line. The system also includes a laser scanning system in electronic communication with the confocal imaging system, and a computer in communication with the confocal imaging system and laser scanning system. In certain embodiments, the laser scanning system emits multiple electromagnetic wavelengths simultaneously it cause multiple fluorescent labels having different excitation wavelength maximums to fluoresce.Type: GrantFiled: November 28, 2016Date of Patent: February 6, 2024Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Jasmeen Merzaban, Ayman F. Abuelela, Amal J. Ali
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Patent number: 11884956Abstract: A series of carbohydrate-dye conjugates, as well as a method for detection of pathogenic or other organisms (e.g., bacteria) using the same are provided. The carbohydrate-dye conjugate can be enzymatically incorporated into live and active (viable) bacteria of interest for facile detection of said bacteria. The conjugate incorporation is achieved by utilizing one or more of the enzymes that are endogenous to the bacteria of interest, which can incorporate the conjugate via the conjugate's carbohydrate. A detectable signal is produced by the conjugate's dye only upon incorporation into the bacteria of interest, due to the changes in the dye's local environment upon incorporation. The conjugate may be metabolically incorporated into the fatty outer membrane of a bacterial cell wall, which provides a distinctly hydrophobic environment for the conjugate's dye, causing it to produce a detectable signal.Type: GrantFiled: July 31, 2017Date of Patent: January 30, 2024Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Carolyn R. Bertozzi, Mireille Kamariza, Peyton Shieh
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Patent number: 11849722Abstract: Methods and compositions of storing a biological material are described herein. In some embodiments, these methods provide one or more advantages over current methods. For example, methods described herein can be used to prepare and process biological materials for storage at elevated temperatures. In one aspect, a method of storing a biological material comprises providing a preservation composition and exposing the preservation composition to electromagnetic radiation to form an amorphous solid matrix containing the biological material. In some embodiments, the method further comprises monitoring temperature of the preservation composition during the exposure to the electromagnetic radiation.Type: GrantFiled: August 8, 2019Date of Patent: December 26, 2023Assignee: THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE NCInventors: Susan Trammell, Gloria Elliott, Madison Young
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Patent number: 11845974Abstract: The present invention relates to improved methods for producing biosynthetic products in a cascade of bioreactors. In particular the present invention relates to methods and a cascade of bioreactor systems comprising at least two bioreactors and at least one concentration unit.Type: GrantFiled: May 25, 2016Date of Patent: December 19, 2023Assignee: NESTE CORPORATIONInventors: Perttu Koskinen, Heidi Vainio, Miia Laamanen, Raisa Vermasvuori, Reijo Tanner
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Patent number: 11840720Abstract: The invention relates to methods and compositions for detecting colorectal cancer and colorectal polyps by measurement of metabolites in bodily fluids such as urine, including diacetylspermine and kynurenine.Type: GrantFiled: December 23, 2019Date of Patent: December 12, 2023Assignee: Metabolomic Technologies Inc.Inventors: Lu Deng, David Chang
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Patent number: 11828750Abstract: A screening system provided with a potential-dependent Na ion channel that extends the duration of the action potential associated with depolarization, and a K ion channel that deepens the resting membrane potential in the negative direction, said screening system furthermore including cells provided with ion channels that contribute to deepening the resting membrane potential in the negative direction and/or shortening the duration of the action potential as target ion channels. By such cells, the action of a test compound on the target ion channel can be easily evaluated by providing an inhibitor for the K ion channel to control the probability of cell death.Type: GrantFiled: November 1, 2017Date of Patent: November 28, 2023Assignees: PUBLIC UNIVERSITY CORPORATION NAGOYA CITY UNIVERSITY, CHANNELOSEARCH TECHNOLOGYInventors: Yuji Imaizumi, Hisao Yamamura, Yoshiaki Suzuki, Keisuke Kawasaki, Hiroshi Narita
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Patent number: 11826720Abstract: The present invention relates to an improved diatomaceous earth composition containing salt water. The diatomaceous earth composition according to the present invention comprises an agglomerated mixture of calcined diatomaceous earth particles, water and at least one inorganic salt, wherein the mass ratio of the calcined diatomaceous earth particles and water is in the range of 1:1.0 to 1:2.0, and wherein the content of the at least one inorganic salt is equal to or more than 0.25 parts by mass based on 100 parts by mass of water. In a further aspect, the present invention relates to a method for producing the diatomaceous earth composition according to the present invention. In another aspect, the present invention relates to the use of the diatomaceous earth composition according to the present invention as an agent for precoat filtration or dynamic body feed filtration in biopharmaceutical applications.Type: GrantFiled: November 6, 2020Date of Patent: November 28, 2023Assignee: Sartorius Stedim Biotech GmbHInventors: Karl Pflanz, Andreas Pickl, Florian Hebenstreit
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Patent number: 11802267Abstract: Described herein are compositions and methods to cryopreserve sporozoites. In some aspects, the method can include the step of placing harvested salivary glands containing sporozoites into an insect-based medium.Type: GrantFiled: May 17, 2022Date of Patent: October 31, 2023Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: John H. Adams, Alison Elizabeth Roth
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Patent number: 11754498Abstract: A fluorescent probe can include a compound exhibiting aggregation-induced emission (AIE). The probe can be used for selectively staining mitochondria and lipid droplets and detecting esterase activity. The probe includes an acetoxyl group which can be recognized by esterase in an esterase activity assay. As enzyme activity can reflect cell viability, the probe can be useful in cell viability detection. In addition, the probe includes a cationic moiety to target mitochondria and a lipophilic moiety that can target lipid droplets. A calculated log P value of the lipophilic moiety can be larger than 5.Type: GrantFiled: October 9, 2020Date of Patent: September 12, 2023Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Benzhong Tang, Ruoyao Zhang
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Patent number: 11730164Abstract: A process for making and using a tissue preservation gel. The gel is comprised of water, reticulated acrylic acid, water soluble short-chain paraben, isopropyl alcohol and either triethanolamine or propylene glycol. To use the gel, a tissue to be preserved is first bathed in hypertonic sodium chloride, then soaked in a wash in multiple increasing concentrations of isopropyl alcohol and then preserved indefinitely in the tissue preservation gel.Type: GrantFiled: May 16, 2022Date of Patent: August 22, 2023Inventor: Clorinda V Contreras Villasmil
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Patent number: 11649440Abstract: The present invention refers to Amadoriase enzyme protein variants having de-glycating activity and improved thermostability compared to the wild type Amadoriase. The present invention refers also to the use of the thermostabilized Amadoriase as deglycating agent, preferably in the food industry. Moreover, the present invention refers to the use of the thermostabilized Amadoriase as diagnostic and/or therapeutic tools. Preferably, the Amadoriase enzyme protein variants of the invention can be used for determining the level of glycated haemoglobin in a biological sample and therefore for monitoring diabetes.Type: GrantFiled: June 21, 2018Date of Patent: May 16, 2023Assignees: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, POLITECNICO DI MILANOInventors: Alfonso Gautieri, Emilio Parisini, Federica Rigoldi, Stefano Donini, Alberto Redaelli
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Patent number: 11649477Abstract: Systems and methods for antimicrobial susceptibility testing (AST) are provided in which variances in anionic charge of microbes are taken into account. Cationic surfactants may be used to sensitize otherwise resistant microorganisms to polycationic antibiotics, such as polymyxins. Since microorganisms gain polycationic antibiotic resistance through mutations that decrease surface anionic charge, the susceptibility of a microorganism to a polycationic antibiotic may be indicative of its surface charge. In order to enable electrostatic interactions with the microorganism surface, a cationic surfactant may be applied to increase the anionic charge of the microorganism.Type: GrantFiled: July 9, 2019Date of Patent: May 16, 2023Assignee: SELUX DIAGNOSTICS, INC.Inventors: Benjamin Spears, Kelly Flentie
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Patent number: 11603515Abstract: [Problem] An object of the present invention is to produce cancer cell clusters with intrinsic biological properties as cancer tissues, such as morphological polarity and tissue motion polarity, in vitro. [Solution] The present invention relates to a cell culture substrate including a base material and a biocompatible polymer layer, the substrate including a plurality of rough sections on the surface of the substrate, wherein the rough sections are not covered with the biocompatible polymer layer, have a predetermined surface structure with a predetermined shape, and are disposed at predetermined intervals. With the present invention, it is possible to obtain a live cancer cell aggregate having morphological polarity and tissue motion polarity similar to that observed in vivo, by a very easy operation of culturing cancer cells on a cell culture substrate having a predetermined structure, thereby performing live imaging of microtumors in vitro is enabled, which has been conventionally impossible.Type: GrantFiled: April 2, 2018Date of Patent: March 14, 2023Assignee: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yukiko Miyatake, Kaori Shigetomi, Takaharu Okajima, Masanori Kasahara
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Patent number: 11567075Abstract: According to an immunochromatographic device for detecting a substance to be detected contained in a detection target in an analyte which is characterized in that a nitrous acid compound containing member having a part containing a nitrous acid compound; a labeling substance retaining member having a labeling substance containing part; an acid anhydride containing member having a part containing an acid anhydride having vapor pressure at 25° C. of 5×10?2 Pa or less; and a chromatography medium member having a detection part are arranged in a manner that a sample develops in the members in this order, the storage stability can be improved; detection with high sensitivity is possible; and the complexity of production can be reduced.Type: GrantFiled: June 13, 2019Date of Patent: January 31, 2023Assignee: TANAKA KIKINZOKU KOGYO K.K.Inventors: Hiroshi Kishi, Hiroko Mochizuki
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Patent number: 11561179Abstract: Microscopic analysis of a sample includes a fluorescent dye disposed within the sample. A mid-IR optical source generates a mid-infrared beam, which is directed onto the sample to induce a temperature change by absorption of the mid-infrared beam. An optical source generates a probe beam directed to impinge on the sample. A detector detects fluorescent emissions from the sample when the probe beam impinges on the sample. A data acquisition and processing system acquires and processes the detected fluorescent emissions from the sample to: (i) generate a signal indicative of infrared absorption by the sample, (ii) generate a signal indicative of temperature in the sample based on the signal indicative of infrared absorption by the sample, (iii) generate an image of the sample using the signal indicative of temperature in the sample.Type: GrantFiled: September 3, 2021Date of Patent: January 24, 2023Assignee: Trustees of Boston UniversityInventors: Ji-Xin Cheng, Yi Zhang, Cheng Zong
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Patent number: 11506654Abstract: A method, a composition and a kit for screening an ALK or ROS-1 kinase inhibitor are disclosed in the present specification. In an aspect, by the method, composition and kit for screening an ALK or ROS-1 kinase inhibitor according to the present disclosure, it is possible to conduct simultaneous quantitative and qualitative analysis and faster screening of a larger number of candidate substances as compared with conventional molecular biological experimental methods and to grasp the overall level of change in a plurality of different metabolites in a cell line by candidate substances of ALK or ROS-1 kinase inhibitor and thus the screening efficiency for drugs which exert an ALK or ROS-1 kinase inhibitory effect is excellent. Consequently, the present disclosure has an advantage of being able to be used in various ways in the development of new drugs which exert an ALK or ROS-1 kinase inhibitory effect.Type: GrantFiled: May 10, 2019Date of Patent: November 22, 2022Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Byung Hwa Jung, Hyun Beom Lee, Naeun Yoon
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Patent number: 11492652Abstract: A method of assessing a possibility of cancerization including culturing a cell structure including normal cells and having a vascular network structure in a presence of a biological specimen from a subject, and assessing a possibility of cancerization in the subject based on a state of vessels in the cell structure after the culturing. The biological specimen is a body fluid specimen from the subject, a cell extract of cells from the subject, or a culture supernatant of cells from the subject, and the possibility of cancerization is assessed as high in the subject when a number of cells forming the vessels in the cell structure is larger than a number of cells cultured in an absence of the body fluid specimen, or when the vascular network structure in the cell structure extends.Type: GrantFiled: October 19, 2018Date of Patent: November 8, 2022Assignee: TOPPAN PRINTING CO., LTD.Inventors: Shiro Kitano, Kei Tsukamoto, Shinji Irie
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Patent number: 11484624Abstract: A method for coating a solid surface with a recombinant spider silk protein capable of forming polymeric, solid structures is provided. The method is comprising the following steps: exposing the solid surface to an aqueous solution of the recombinant spider silk protein and thereby forming a surface layer of the recombinant spider silk protein adsorbed on the solid surface without formation of covalent bonds between the recombinant spider silk protein and the solid surface; and further exposing the surface layer of the solid surface to an aqueous solution of the recombinant spider silk protein and thereby forming an assembled silk structure layer of the recombinant spider silk protein on the surface layer; wherein the method does not include drying-in of spider silk protein.Type: GrantFiled: May 16, 2017Date of Patent: November 1, 2022Assignee: SPIBER TECHNOLOGIES ABInventors: My Hedhammar, Linnea Nilebäck
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Patent number: 11477981Abstract: This disclosure relates to ice nucleation formulations for cryopreservation and stabilization of biologics, and methods of use thereof.Type: GrantFiled: June 29, 2017Date of Patent: October 25, 2022Assignee: The General Hospital CorporationInventors: Mehmet Toner, Shannon N. Tessier, Lindong Weng, Shannon L. Stott
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Patent number: 11480572Abstract: Systems and methods for predicting an immune response against a tumor in a patient having the tumor are provided. The relative mass or changes of mass of tumor cells or immune cell in the tumor can be ex vivo observed, and an immune status of the tumor can be determined based on the mass of tumor cells or immune cell. The immune status can provide a guidance to predict the immune response against the tumor in the patient.Type: GrantFiled: December 17, 2017Date of Patent: October 25, 2022Assignees: NantBio, Inc., Nant Holdings IP, LLPInventors: Kayvan Niazi, Shahrooz Rabizadeh, Nicholas J. Witchey