Patents Assigned to Universiteit Leiden
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Patent number: 11680088Abstract: The disclosure concerns snake-derived peptides and the useful application of such peptides to inhibit bacterial, fungal, viral and parasitic infections. The disclosed peptides are also useful for the treatment of an inflammatory condition or cancers.Type: GrantFiled: September 17, 2019Date of Patent: June 20, 2023Assignees: Universiteit Leiden, Academisch Ziekenhuis Leiden h.o.d.n. LUMCInventors: Harald Martijn Ijsbrand Kerkkamp, Michael Keith Richardson, Gilles Philippus van Wezel, Jan Wouter Drijfhout, Robert Alexander Cordfunke, Michella Manon Voet, Petrus Hendricus Nibbering
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Publication number: 20230174584Abstract: Provided herein are lipidated glycopeptide compounds of formula (I); or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof. R1 is a lipid, R2 is —H or a lipid, and R3 and R4 are as defined herein. These compounds have antibiotic activity. Also provided are formulations comprising such compounds; as well as such compounds or formulations for use as a medicament. The compounds and formulations may also be used in the treatment of bacterial infection.Type: ApplicationFiled: September 24, 2020Publication date: June 8, 2023Applicant: UNIVERSITEIT LEIDENInventors: Nathaniel I. Martin, Emma Van Groesen, Kamaleddin H.M.E. Tehrani, Nicola Wade
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Publication number: 20230025535Abstract: A thin film liquid cell suitable for transmission electron microscopy at room temperature is fabricated as follows. A thin film floating on a liquid is prepared. A droplet of the liquid with the thin film floating thereon is transferred to a support by means of a loop. The loop carries the droplet and the droplet carries the thin film during this transfer. Sufficient liquid from the droplet on the support is removed to form the thin film liquid cell.Type: ApplicationFiled: December 21, 2020Publication date: January 26, 2023Applicant: UNIVERSITEIT LEIDENInventors: Pauline Marthe Gerardina VAN DEURSEN, Gregory Fabrice SCHNEIDER, Alexander KROS, Viorica TUDOR
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Patent number: 11525140Abstract: The present disclosure provides methods for transfecting plants and for expressing RNA or polypeptide molecules in plants. In particular, plants having reduced POLQ expression and/or activity are transfected in order to reduce random integration events. The disclosure further provides transfected plants and plant progeny produced by the methods disclosed herein.Type: GrantFiled: March 23, 2017Date of Patent: December 13, 2022Assignees: UNIVERSITEIT LEIDEN, ACADEMISCH ZIEKENHUIS LEIDEN H.O.D.N. LUMCInventors: Marcel Tijsterman, Maartje Van Kregten, Paul Hooykaas
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Publication number: 20220230757Abstract: A method of monitoring a user's neuronal activity (10) includes recording a user's behavioural output with a portable electronic device, such as a mobile cellphone. The user's behavioural output (14) is compared (18) with predefined behavioural outputs associated with known event-related neuronal activations (20). The user's event-related neuronal activation (22) is determined based upon the comparison so as to provide an indication of the user's neuronal activity.Type: ApplicationFiled: May 22, 2020Publication date: July 21, 2022Applicant: UNIVERSITEIT LEIDENInventor: Arko GHOSH
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Patent number: 11378513Abstract: Apparatus (100) for determining presence of a gas (103) is provided, the apparatus (100) comprising: one or more retarders (109) to spectrally modulate polarisation of received radiation in accordance with a plurality of polarised spectral modulation profiles which are offset in phase from each other, the radiation output from the one or more retarders (109) comprising radiation having polarisation spectrally modulated in accordance with the said plurality of polarised spectral modulation profiles in a common beam of radiation; one or more polarisers (147, 148); and radiation detectors (142, 144) to detect radiation output from the one or more retarders (109) filtered for respective polarisation states by the one or more polarisers (147, 148), the detectors (142, 144) selectively and separately detecting on different detectors at the same time polarised radiation conforming to each of at least first and second of the said polarised spectral modulation profiles to thereby provide at least respective first andType: GrantFiled: May 3, 2019Date of Patent: July 5, 2022Assignee: UNIVERSITEIT LEIDENInventors: Frans Snik, Christoph Ulrich Keller
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Patent number: 11344877Abstract: The present invention relates to an apparatus for controlling the shape and/or position of a moveable fluid-fluid meniscus, and methods of use, in particular a method to control the shape of a moveable fluid-fluid meniscus in an apparatus in which the meniscus is caused to align along a stable capillary barrier or phaseguide.Type: GrantFiled: September 10, 2013Date of Patent: May 31, 2022Assignee: UNIVERSITEIT LEIDENInventors: Paul Vulto, Sebastiaan Johannes Trietsch, Ender Yildirim
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Patent number: 11208667Abstract: This disclosure relates to the field of secondary metabolite production in plants. More specifically, the disclosure relates to chimeric genes encoding a bHLH protein of subfamily Iva comprising a bHLH domain and their use in the regulation of biosynthesis and/or production of secondary metabolites in plants and plant-derived cell cultures.Type: GrantFiled: August 21, 2018Date of Patent: December 28, 2021Assignees: VIB VZW, Universiteit Gent, Universiteit LeidenInventors: Alain Goossens, Jan Mertens, Alex Van Moerkercke, Jacob Pollier, Johan Memelink
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Publication number: 20210131950Abstract: Apparatus (100) for determining presence of a gas (103) is provided, the apparatus (100) comprising: one or more retarders (109) to spectrally modulate polarisation of received radiation in accordance with a plurality of polarised spectral modulation profiles which are offset in phase from each other, the radiation output from the one or more retarders (109) comprising radiation having polarisation spectrally modulated in accordance with the said plurality of polarised spectral modulation profiles in a common beam of radiation; one or more polarisers (147, 148); and radiation detectors (142, 144) to detect radiation output from the one or more retarders (109) filtered for respective polarisation states by the one or more polarisers (147, 148), the detectors (142, 144) selectively and separately detecting on different detectors at the same time polarised radiation conforming to each of at least first and second of the said polarised spectral modulation profiles to thereby provide at least respective first andType: ApplicationFiled: May 3, 2019Publication date: May 6, 2021Applicant: UNIVERSITEIT LEIDENInventors: Frans SNIK, Christoph Ulrich KELLER
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Patent number: 10900008Abstract: Apparatus for processing life-based organic particles, including particles selected from the list comprising cells, cellular spheroids, tissues, eukaryotes, micro-organisms, organs or embryos, comprises a hollow volume (10) that (a) is internally divided into at least first (14), second (16) and third (17) sub-volumes by at least two phaseguides (12, 13) formed inside the volume and (b) includes parts that are relatively upstream and relatively downstream when judged with reference to the movement of a meniscus or a bulk liquid in the volume (10). The apparatus includes at least first, second and third fluid conduits (19, 21, 22) connected to permit fluid communication between the upstream exterior of the volume (10) and a respective said sub-volume (14, 16, 17); and at least one further conduit (24) connected to permit fluid communication between the downstream exterior of the volume (10) and a said sub-volume.Type: GrantFiled: September 16, 2019Date of Patent: January 26, 2021Assignee: UNIVERSITEIT LEIDENInventors: Paul Vulto, Sebastiaan Johannes Trietsch, Heiko Jan van der Linden, Adrianus Theodoras Joore, Thomas Hankemeier
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Patent number: 10865334Abstract: The invention is directed to a process for extracting materials from biological material, which process is characterized in that the naturally occurring biological material is treated with an extractant consisting of a deep eutectic solvent of natural origin or a an ionic liquid of natural origin to produce a biological extract of natural origin dissolved in the said solvent or ionic liquid.Type: GrantFiled: August 5, 2014Date of Patent: December 15, 2020Assignee: Universiteit LeidenInventors: Jacob van Spronsen, Geert-Jan Witkamp, Frank Hollman, Young Hae Choi, Robert Verpoorte
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Patent number: 10746824Abstract: A magnetic resonance force detection apparatus, comprising: a sample carrier for carrying a sample to be tested; a magnetic field source configured to provide a magnetic field to a sample when it is carried by the sample carrier; a support for supporting either the sample carrier or the magnetic field source; a support-driving-mechanism configured to drive the support such that the sample carrier moves relative to the magnetic field source, such that the magnetic field is configured to cause the spins of one or more nuclei or electrons in the sample to flip, and wherein the flipping of spins exerts a force on the support; and a support-displacement-measuring-sensor configured to measure displacement of the support and generate a signal representative of the displacement of the support.Type: GrantFiled: March 1, 2017Date of Patent: August 18, 2020Assignee: UNIVERSITEIT LEIDENInventors: Arthur den Haan, Jelmer Wagenaar, Tjerk Oosterkamp, Rembrandt Donkersloot
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Patent number: 10746745Abstract: The present invention relates to the identification of chemokine biomarkers predictive of future acute coronary syndromes including unstable angina pectoris (UAP). The present invention also identifies particular chemokines as potential therapeutic targets for intervention in cardiovascular diseases.Type: GrantFiled: January 11, 2018Date of Patent: August 18, 2020Assignees: Academisch Ziekenhuis Leiden, Universiteit LeidenInventors: Ericus Anna Leonardus Biessen, Theodorus Josephus Cornelis Van Berkel, Adriaan Otto Kraaijeveld
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Patent number: 10696685Abstract: The invention is among others concerned with novel polyketides, their method of production, purification and use. The method can entail providing a bacterium that synthesizes the compound.Type: GrantFiled: June 3, 2016Date of Patent: June 30, 2020Assignee: Universiteit LeidenInventors: Changsheng Wu, Young-Hae Choi, Gilles Philippus van Wezel
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Patent number: 10590082Abstract: Deoxynojirimycin and deoxygalactonojirimycin derivatives according to the present invention are N-alkylated D-galacto, D-gluco- or L-ido-deoxynojirimycin with a linear methyloxypentyl group bearing various sidegroups and a non-fused bicyclic aromatic group (“X”) on the methyloxy-carbon. Formula (I), Formula (Ia). These compounds display an increased inhibitory potency towards GCS, and/or an increased inhibitory potency towards GBA2, and/or a decreased inhibitory potency towards GBA1, relative to known deoxynojirimycin derivatives of the same (D-gluco, L-ido or D-galacto) configuration.Type: GrantFiled: January 7, 2019Date of Patent: March 17, 2020Assignees: Academisch Medisch Centrum, Universiteit LeidenInventors: Herman Steven Overkleeft, Stan Van Boeckel, Johannes Maria Franciscus Gerardus Aerts, Amar Ghisaidoobe, Richard Van Den Berg
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Publication number: 20200071650Abstract: Apparatus for processing life-based organic particles, including particles selected from the list comprising cells, cellular spheroids, tissues, eukaryotes, micro-organisms, organs or embryos, comprises a hollow volume (10) that (a) is internally divided into at least first (14), second (16) and third (17) sub-volumes by at least two phaseguides (12, 13) formed inside the volume and (b) includes parts that are relatively upstream and relatively downstream when judged with reference to the movement of a meniscus or a bulk liquid in the volume (10). The apparatus includes at least first, second and third fluid conduits (19, 21, 22) connected to permit fluid communication between the upstream exterior of the volume (10) and a respective said sub-volume (14, 16, 17); and at least one further conduit (24) connected to permit fluid communication between the downstream exterior of the volume (10) and a said sub-volume.Type: ApplicationFiled: September 16, 2019Publication date: March 5, 2020Applicant: UNIVERSITEIT LEIDENInventors: Paul Vulto, Sebastiaan Johannes Trietsch, Heiko Jan van der Linden, Adrianus Theodorus Joore, Thomas Hankemeier
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Patent number: 10450542Abstract: Apparatus for processing life-based organic particles, including particles selected from the list comprising cells, cellular spheroids, tissues, eukaryotes, micro-organisms, organs or embryos, comprises a hollow volume (10) that (a) is internally divided into at least first (14), second (16) and third (17) sub-volumes by at least two phaseguides (12, 13) formed inside the volume and (b) includes parts that are relatively upstream and relatively downstream when judged with reference to the movement of a meniscus or a bulk liquid in the volume (10). The apparatus includes at least first, second and third fluid conduits (19, 21, 22) connected to permit fluid communication between the upstream exterior of the volume (10) and a respective said sub-volume (14, 16, 17); and at least one further conduit (24) connected to permit fluid communication between the downstream exterior of the volume (10) and a said sub-volume.Type: GrantFiled: March 8, 2012Date of Patent: October 22, 2019Assignee: UNIVERSITEIT LEIDENInventors: Paul Vulto, Sebastiaan Johannes Trietsch, Heiko Jan van der Linden, Adrianus Theodorus Joore, Thomas Hankemeier
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Patent number: 10439125Abstract: There is provided methods of manufacturing a superconductor element and a method of manufacturing a phononic element. The method of manufacturing a superconductor element comprises the step of forming a periodic patterned structure in a material to alter an electronic structure in a primary layer (M) of the material to couple with the or each phonon of the primary layer (M) so as to induce superconductivity in the primary layer (M) or modify the superconductivity of the primary layer, and/or create or alter one or more phonons in a primary layer (M) of the material to couple with the electrons of the primary layer (M) so as to induce superconductivity in the primary layer (M) or modify the superconductivity of the primary layer.Type: GrantFiled: January 12, 2017Date of Patent: October 8, 2019Assignee: Universiteit LeidenInventor: Milan Allan
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Patent number: 10370672Abstract: This disclosure relates to the field of secondary metabolite production in plants. More specifically, the disclosure relates to chimeric genes and their use in the regulation of biosynthesis and/or production of secondary metabolites in plants and plant-derived cell cultures.Type: GrantFiled: February 18, 2015Date of Patent: August 6, 2019Assignees: VIB XVZW, UNIVERSITEIT GENT, UNIVERSITEIT LEIDENInventors: Alain Goossens, Jan Mertens, Alex Van Moerkercke, Jacob Pollier, Johan Memelink
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Publication number: 20190195897Abstract: The invention provides means and methods for detecting a glycosylated metabolite in a sample comprising adding to the sample a compound comprising a labelled glycosyl group coupled via an O-glycosidic bond to an aglycon with a specific structural formula wherein the glycosyl group comprises at least one isotope and/or a side chain being a label for detection, and wherein the sample is screened for the presence of a glycosylated metabolite with the glycosyl group other than a glucosylceramide. The invention further provides a method of treating a disorder caused by accumulation of a glycosylated metabolite other than glucosylceramide in a subject comprising administering to the subject in need thereof a therapeutically effective amount of a glucosylceramide synthase (GCS) inhibitor.Type: ApplicationFiled: June 24, 2016Publication date: June 27, 2019Applicant: UNIVERSITEIT LEIDENInventors: Johannes Maria Franciscus Gerardus AERTS, Hermen Steven OVERKLEEFT