Patents Assigned to Freie Universitat Berlin
  • Patent number: 12122805
    Abstract: A method of detecting a protein by mass spectrometry comprises: providing a solution comprising a dendritic detergent and a protein; providing a mass spectrometer comprising a nanoelectrospray ionisation source, a mass analyser and a detector; vaporising the solution using the nanoelectrospray ionisation source; ionising the protein; resolving the ionised protein using the mass analyser; and detecting the resolved protein using the detector. A method of extracting a membrane protein from its native membrane comprises: providing a membrane protein in its native membrane; contacting the membrane protein with a dendritic detergent. Dendritic detergents for use in the methods are also provided.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 22, 2024
    Assignees: OXFORD UNIVERSITY INNOVATION LIMITED, FREIE UNIVERSITÄT BERLIN
    Inventors: Carol V. Robinson, Idlir Liko, Hsin-Yung Yen, Kevin Pagel, Rainer Haag, Svenja Christina Ehrmann, Leonhard Hagen Urner
  • Publication number: 20240294872
    Abstract: It is provided a method for activating dendritic cells in vitro, comprising the following steps: a) providing a substrate, wherein a surface of the substrate comprises at least one poly(glycidyl ether) derivative according to general formula (i); b) contacting the substrate with a dendritic cell in an isosmotic aqueous solution or buffer.
    Type: Application
    Filed: June 23, 2022
    Publication date: September 5, 2024
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Heidemarie WEINHART, Daniel STÖBENER, Matthias PEISER
  • Publication number: 20240279405
    Abstract: It is provided a thermoresponsive hydrogel, comprising dendritic polyglycerol units and poly(N-isopropylacrylamide)-co-polyethylene glycol units that are covalently bound to each other via a linker, wherein the linker is chosen from the group consisting of a cyclic triazol moiety and a diazacyclohexadiene moiety. This thermoresponsive hydrogel serves as microniche environment for the robust cultivation of cells such as induced pluripotent stem cells. The thermoresponsive hydrogel has a specific thermoreversible degradation capability enabling a controlled release of the expanded cells by only changing the temperature. This dramatically simplifies the process of cell harvesting.
    Type: Application
    Filed: June 15, 2022
    Publication date: August 22, 2024
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Rainer HAAG, Wenzhong LI, Wanjun LIANG
  • Patent number: 12054063
    Abstract: A method for the exchange of electrical energy between at least two moving, electrically powered vehicles, comprising the steps: providing a first and a second electrically powered vehicle, having a respective electrical energy store, the energy store of the first and the second vehicle can emit or receive electrical energy, and the first and second vehicles move or are to be moved along a first or second route; changing the first and second routes in such a way that both changed routes coincide along a route section; steering the first and second vehicle along the changed first and second route in such a way that both the vehicles move along the coinciding route section at a distance to one another that is smaller than a predefined maximum distance; and transferring electrical energy from the energy store of the first vehicle to the energy store of the second vehicle.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: August 6, 2024
    Assignee: FREIE UNIVERSITÄT BERLIN
    Inventor: Tim Landgraf
  • Publication number: 20240216889
    Abstract: It is provided a storage medium for storing hydrogen chloride (HCl) comprising at least one ionic compound of the general formulae (I) Wherein R1, R2, R3 being independent from each other an alkyl moiety selected from the group of methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl and sec-butyl, preferably methyl, ethyl, n-propyl; Wherein at least one of the moieties R1, R2, R3 differs from each of the others moieties R1, R2, R3; Wherein a, b, c are independently from each other 0, 1, 2 or 3, wherein the sum of a+b+c always has to be 4; Wherein n>=1, preferably n=1-6, more preferably n=1, 2, 3, 4, with a viscosity in a range between 5 and 50 mPas, preferably between 10 and 20 mPas (25° C., 1000 hPa).
    Type: Application
    Filed: August 11, 2022
    Publication date: July 4, 2024
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Sebastian HASENSTAB-RIEDEL, Patrick VOßNACKER
  • Publication number: 20240045304
    Abstract: It is provided a method for generating a supercontinuum, the method comprising the following steps: a) radiating a carrier laser pulse having a first temporal width onto a first non-linear material; b) at the same time, radiating a second shorter laser pulse having a second temporal width onto the first non-linear material, thereby changing the non-linear properties of the first non-linear material and imprinting a ghost pulse having a third temporal width into the carrier pulse; the second temporal width being at least two times shorter than the first temporal width, and c) radiating the carrier pulse with imprinted ghost pulse onto the first non-linear material or a second non-linear material and generating, by self-phase modulating, a supercontinuum around the center frequency of the carrier pulse.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 8, 2024
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Karsten HEYNE, Valeri KOZICH, Xingwen ZHANG
  • Publication number: 20230330234
    Abstract: It is provided a composition comprising a hyperbranched polyester polyol derivative and a small molecule comprising at least one cyclic amine. The hyperbranched polyester polyol derivative is obtainable by a method comprising the following steps: a) reacting only glycidol and ?-caprolactone at a temperature lying in a range of between 40° C. and 140° C. to obtain a hyperbranched polyester polyol derivative in which caprolactone residues and glycerol residues are randomly arranged; b) reacting the hyperbranched polyester polyol derivative of step a) with a sulfation reagent to obtain a sulfated hyperbranched polyester polyol as hyperbranched polyester polyol derivative.
    Type: Application
    Filed: February 1, 2021
    Publication date: October 19, 2023
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Rainer HAAG, Magda FERRARO, Ehsan MOHAMMADIFAR, Michael SCHIRNER
  • Patent number: 11708388
    Abstract: The present invention relates to the novel use of saponins having acetyl residues on one of their sugar residues. These saponins are able to enhance the transfection efficiency to a surprisingly much higher extent than already known saponins and even than Lipofectamin.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: July 25, 2023
    Assignee: Freie Universität Berlin
    Inventors: Alexander Weng, Matthias F. Melzig, Simko Sama
  • Publication number: 20230182599
    Abstract: A method for the exchange of electrical energy between at least two moving, electrically powered vehicles, comprising the steps: providing a first and a second electrically powered vehicle, having a respective electrical energy store, the energy store of the first and the second vehicle can emit or receive electrical energy, and the first and second vehicles move or are to be moved along a first or second route; changing the first and second routes in such a way that both changed routes coincide along a route section; steering the first and second vehicle along the changed first and second route in such a way that both the vehicles move along the coinciding route section at a distance to one another that is smaller than a predefined maximum distance; and transferring electrical energy from the energy store of the first vehicle to the energy store of the second vehicle.
    Type: Application
    Filed: May 9, 2018
    Publication date: June 15, 2023
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventor: Tim LANDGRAF
  • Publication number: 20230080135
    Abstract: An amphiphilic copolymer includes a first block, a second block and a linker covalently linking the first block with the second block, wherein the first block is a hydrophilic dendritic polyglycerol derivative having a polyglycerol backbone and carrying a plurality of sulfate or sulfonate residues substituting hydroxyl groups of the polyglycerol backbone, wherein the second block is a hydrophobic block comprising a polymer chosen from the group consisting of polycaprolactone, a polylactic acid polymer, and a copolymer of lactic acid and glycolic acid. The linker comprises a hydrocarbon having at least six consecutive methylene residues and a cleavable entity. The linker is devoid of a triazole-containing residue resulting from a reaction between an alkyne and an azide.
    Type: Application
    Filed: February 1, 2021
    Publication date: March 16, 2023
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Rainer HAAG, Michael SCHIRNER
  • Publication number: 20230039644
    Abstract: The disclosure relates to novel saponins comprising acetyl residues on two of their sugar residues. These saponins are able to enhance the transfection efficiency to a high extent and show much less cytotoxic side effects than already known saponins.
    Type: Application
    Filed: December 17, 2020
    Publication date: February 9, 2023
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Simko SAMA, Alexander WENG, Hardy MITDANK
  • Publication number: 20220401565
    Abstract: It is provided a method of treatment of a human or animal patient in need thereof to achieve a reduction of the viscosity of mucus of the patient which is carried out by administering a polyglycerol derivative having a linear or dendritic polyglycerol backbone and carrying at least one thiol group covalently bound to the polyglycerol backbone. It is further provided a method of treatment of a human or animal patient suffering from chronic sinusitis, asthma, chronic bronchitis, cystic fibrosis, chronic obstructive pulmonary disease, emphysema, bronchiectasis, chronic inflammatory bowel diseases, constipation, gastrointestinal malabsorption syndrome, irritable bowel syndrome, steatorrhea or diarrhea by administering a polyglycerol derivative. Further specific thiol-functionalized polyglycerol derivatives and a corresponding manufacturing method are provided.
    Type: Application
    Filed: September 28, 2020
    Publication date: December 22, 2022
    Applicants: FREIE UNIVERSITÄT BERLIN, CHARITE - UNIVERSITAETSMEDIZIN BERLIN
    Inventors: Rainer HAAG, Marcus MALL, Daniel LAUSTER, Yinan ZHONG
  • Patent number: 11479570
    Abstract: It is provided a pentafluorophosphate derivative according to general formula (I): or a pharmaceutically acceptable salt or solvate thereof. Thereby, R1 and R2 denote independently from each other H or F; R3 denotes H, a C1-C10 alkyl optionally substituted by a hydrocarbon chain comprising an amide function and/or a carboxyl function, or by a substituent chosen from the group consisting of alkyl, alkylamino, alkylaminocarboxy, carboxy, alkoxycarbonyl, hydroxy, N-morpholino, N-morpholinoalkyl, N-morpholinocarbonyl, N-methyl-N-piperazinyl, N-methyl-N-piperazinylalkyl, N-methyl-N-piperazinylcarbonyl, and sulfo, an optionally substituted C3-C10 cycloalkyl, or an optionally substituted C6-C20 aryl, wherein a hydrocarbon chain of the alkyl, the cycloalkyl or the aryl can be interrupted by one or more oxygen, sulfur and/or nitrogen atoms; and M denotes any cation; with the proviso that at least one of R1 and R2 denotes F, if R3 denotes H.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 25, 2022
    Assignee: FREIE UNIVERSITÄT BERLIN
    Inventors: Jörg Rademann, Stefan Wagner, Matteo Accorsi
  • Patent number: 11439972
    Abstract: A method for the infrared-light-induced yield optimization of chemical reactions is provided. An energy input into at least one starting material that is subjected to a chemical reaction takes place by means of infrared light pulses having a mean wavelength in the range of 2000 to 100000 nm. The chemical reaction here is a reaction in which a product, the molecular formula of which does not correspond to the molecular formula of the starting material, is formed and wherein the yield optimization for the most part is not based on a thermal heating of the starting material. The infrared light pulses have a fixed wavelength and the energy input into the starting material takes place by means of vibration excitation by a one-photon process.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: September 13, 2022
    Assignee: FREIE UNIVERSITÄT BERLIN
    Inventors: Karsten Heyne, Florian Kössl, Valeri Kozich
  • Publication number: 20220280691
    Abstract: A photocurable composition for 3D printing includes a) at least one photocurable prepolymer chosen from the group consisting of functionalized gelatin bearing a first functional group and functionalized decellularized extracellular matrix bearing a second functional group; b) at least one solvent, the solvent being formamide; and c) at least one photoinitiator.
    Type: Application
    Filed: July 10, 2020
    Publication date: September 8, 2022
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Marie WEINHART, Laura ELOMAA
  • Publication number: 20220118078
    Abstract: It is provided a method for manufacturing viruses in an in vitro cell culture. The method comprising the following steps: providing a cell culture of avian epithelial cells chosen from at least one of the cell cultures deposited under deposition numbers DSM ACC3345, DSM ACC3346, DSM ACC3347, DSM ACC3348, DSM ACC3349 at Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen and Zellkulturen GmbH on Dec. 12, 2018; infecting at least some of the cells in the cell culture with virus particles; incubating the cells for a first period of time; and recovering viruses produced by the cell culture from a supernatant of the cell culture.
    Type: Application
    Filed: January 28, 2020
    Publication date: April 21, 2022
    Applicants: FREIE UNIVERSITÄT BERLIN, TENTAMEDIX GMBH
    Inventors: Michael VEIT, Chris Tina HÖFER, Wolfgang RUDY
  • Patent number: 11103158
    Abstract: The disclosure relates to a method for providing original data that can be used for subsequently determining the function of an organ of a living organism or for subsequently diagnosing a disease or a severity of a disease of an organ of a living organism. This method is characterized by several steps, one of which is administering a marker substance to a living organism by inhalation, wherein the marker substance has a vapor pressure above 0.01 mmHg at 37° C. In other method steps, the concentration of this marker substance in exhaled air is determined at at least two different time points. Then, a difference in marker substance concentration is calculated.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: August 31, 2021
    Assignee: FREIE UNIVERSITÄT BERLIN
    Inventors: Theodore Von Haimberger, Anja Heyne, Karsten Heyne
  • Patent number: 11041090
    Abstract: The disclosure relates to an amphiphilic block copolymer comprising a first block consisting of a polymeric hydrophilic domain, wherein the polymeric hydrophilic domain consists of a polyglycerol; an optional second block consisting of a hydrophobic domain and a first linker domain, wherein the second block is covalently bound to the first block via the first linker domain, an optional third block consisting of a catechol domain and a second linker domain, wherein the third block is covalently bound to the first block via the second linker domain; and a fourth block consisting of a crosslinking domain and a third linker domain, wherein the fourth block is covalently bound to the first block via the third linker domain, wherein the crosslinking domain comprises a reactive residue enabling a crosslinking between individual molecules of the amphiphilic block copolymer.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 22, 2021
    Assignee: FREIE UNIVERSITÄT BERLIN
    Inventors: Rainer Haag, Marie Weinhart, Qiang Wei, Leixiao Yu
  • Publication number: 20210122772
    Abstract: It is provided a pentafluorophosphate derivative according to general formula (I): or a pharmaceutically acceptable salt or solvate thereof. Thereby, R1 and R2 denote independently from each other H or F; R3 denotes H, a C1-C10 alkyl optionally substituted by a hydrocarbon chain comprising an amide function and/or a carboxyl function, or by a substituent chosen from the group consisting of alkyl, alkylamino, alkylaminocarboxy, carboxy, alkoxycarbonyl, hydroxy, N-morpholino, N-morpholinoalkyl, N-morpholinocarbonyl, N-methyl-N-piperazinyl, N-methyl-N-piperazinylalkyl, N-methyl-N-piperazinylcarbonyl, and sulfo, an optionally substituted C3-C10 cycloalkyl, or an optionally substituted C6-C20 aryl, wherein a hydrocarbon chain of the alkyl, the cycloalkyl or the aryl can be interrupted by one or more oxygen, sulfur and/or nitrogen atoms; and M denotes any cation; with the proviso that at least one of R1 and R2 denotes F, if R3 denotes H.
    Type: Application
    Filed: September 13, 2018
    Publication date: April 29, 2021
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Jörg RADEMANN, Stefan WAGNER, Matteo ACCORSI
  • Publication number: 20200385517
    Abstract: It is provided a method for manufacturing a hyperbranched polyester polyol derivative, comprising the following steps: a) reacting only glycidol and ?-caprolactone at a temperature lying in a range of between 40° C. and 140° C. to obtain a hyperbranched polyester polyol in which caprolactone residues are randomly arranged; b) reacting the hyperbranched polyester polyol of step a) with a sulfation reagent to obtain a sulfated hyperbranched polyester polyol as hyperbranched polyester polyol derivative.
    Type: Application
    Filed: November 13, 2018
    Publication date: December 10, 2020
    Applicant: FREIE UNIVERSITÄT BERLIN
    Inventors: Rainer HAAG, Ehsan MOHAMMADIFAR, Magda FERRARO, Fatemeh ZABIHI, Mohsen ADELI