Patents by Inventor Knut Rurack
Knut Rurack has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240066500Abstract: A layer structure having a solid substrate having a surface, the surface carrying a layer including a molecularly imprinted polymer, wherein the molecularly imprinted polymer is adapted to bind a glyphosate analyte, wherein the glyphosate analyte is selected from glyphosate, a glyphosate degradation product, a metabolite of glyphosate or a metabolite of the degradation product of glyphosate, wherein a fluorescence characteristic of the molecularly imprinted polymer changes upon binding of the glyphosate analyte. Further, a method for detecting a glyphosate analyte in a sample includes: providing the layer structure having the molecularly imprinted polymer; providing a fluidic contact of the layer structure with the sample or an organic extract of the sample; measuring a fluorescence property of the layer structure; and estimating a concentration of glyphosate or of the glyphosate related analyte at least semi-quantitatively.Type: ApplicationFiled: November 25, 2021Publication date: February 29, 2024Applicant: Bundesrepblik Deutschland, vertreten durch den Bundesminister für Wirtschaft und Energie, dieser verInventors: Martha Wamaitha Kimani, Kornelia Gawlitza, Knut Rurack, Virginia Valderrey Berciano, Victor Pérez Padilla
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Patent number: 11656213Abstract: A detection reagent is disclosed in the form of a dye having the basic structure of a 4-(phenylethynyl)-phenyl-amine, a 4-(phenylethenyl)-phenyl-amine and/or a biphenylamine derivative. The dye can be used as detection reagent for nitroaromatics, nitroalkanes, nitroamines, nitrates, nitric acid, nitrous acid, nitrogen oxides, and additionally for sulphur dioxide (which is produced with the degradation of black powder). The dye can be an asymmetric triphenylamine derivative, which can lead to a fluorescence quenching, which can be used analytically in the case of electron abstraction.Type: GrantFiled: November 16, 2016Date of Patent: May 23, 2023Assignee: Institut Dr. Foerster GmbH & Co. KGInventors: Mustafa Biyikal, Knut Rurack
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Patent number: 11561175Abstract: A method for the detection of hydrocarbon contamination in a sample is disclosed. The method includes contacting a sample with a molecular probe. The molecular probe has a photoluminescence which is environmentally sensitive. The photoluminescence from the molecular probe is collected. The method includes determining whether the photoluminescence is indicative of a hydrocarbon contaminated sample. A test strip for the detection of hydrocarbon contamination in a sample is also disclosed. The test strip includes a molecular probe embedded in a substrate and/or immobilized to the substrate, the molecular probe having a photoluminescence which is environmentally sensitive to hydrocarbon contaminated sample.Type: GrantFiled: September 29, 2017Date of Patent: January 24, 2023Assignee: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Wirtschaft und Energie, diese vertreten durch den Präsidenten der Bundesanstalt für Materialforgchung und- Prüfung (BAM)Inventors: Raúl Gotor, Jérémy Bell, Knut Rurack
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Publication number: 20220299440Abstract: A sensor is suggested, comprising a substrate and a first mixed layer arranged on the substrate, the first mixed layer comprising: a molecular probe; a sulfonic acid; and a hydrophilic compound; wherein the molecular probe is selected from: a triarylamine; a biphenyl diamine, a benzene diamine, a diaryl benzamide, and/or a triarylborane.Type: ApplicationFiled: June 5, 2019Publication date: September 22, 2022Applicants: Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaftund Energie, Institut Dr. Foerster GmbH & Co. KGInventors: Mustafa Biyikal, Knut Rurack, Benedikt Heller
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Publication number: 20220236243Abstract: A molecular probe for selective detection of a nitrate and/or a decomposition product of a nitrate by generating a fluorescence signal in response to an excitation in the wavelength range between 340-370 and 480-520 nm, wherein the molecular probe is selected from a triarylborane dye according to formula (7) and a BODIPY dye according to formula (13):Type: ApplicationFiled: June 5, 2019Publication date: July 28, 2022Applicants: Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaftund Energie, Institut Dr. Foerster GmbH & Co. KGInventors: Benedikt Heller, Mustafa Biyikal, Knut Rurack, Jerie Zbynek
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Patent number: 11333652Abstract: A method for the detection of adulterated gasoline in a sample is disclosed. The method includes contacting a sample with an immobilized molecular probe, the immobilized molecular probe having a photoluminescence which is environmentally sensitive; collecting the photoluminescence from the immobilized molecular probe; and determining whether the photoluminescence is indicative of adulterated gasoline. A test strip for the detection of adulterated gasoline in a sample is also disclosed, including an immobilized molecular probe embedded in a substrate and/or immobilized to the substrate, the immobilized molecular probe having photoluminescence which is environmentally sensitive to adulterated gasoline. The method and test strips are designed to be robust, portable, and within the capabilities of untrained personnel.Type: GrantFiled: September 29, 2017Date of Patent: May 17, 2022Assignee: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Energie Wirtschaft und EnergieInventors: Raúl Gotor, Jérémy Bell, Knut Rurack
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Publication number: 20210208070Abstract: A method for detection of an adulterated diesel fuel in a sample is disclosed. The method includes contacting a sample with a molecular probe, the molecular probe having a photoluminescence which is environmentally sensitive; collecting the photoluminescence from the molecular probe; and determining whether the photoluminescence is indicative of adulterated diesel fuel. A test strip for the detection of adulterated diesel fuel in a sample is disclosed, comprising a molecular probe embedded in a substrate and/or immobilized to the substrate, the molecular probe having a photoluminescence which is environmentally sensitive to adulterated diesel fuel. The method and test strips are designed to be robust, portable, and within the capabilities of untrained personnel.Type: ApplicationFiled: September 29, 2017Publication date: July 8, 2021Applicant: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Wirtschaft und EnergieInventors: Raúl Gotor, Jérémy Bell, Knut Rurack
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Publication number: 20210115328Abstract: A double fluorescent particle comprises: a core with a first fluorescence; and a molecularly imprinted polymer (MIP) shell with a second fluorescence; wherein the MIP is an organic polymer comprising elements selected from the group consisting of: C, H, O, N, P, and S; wherein the MIP is adapted to selectively bind to a cell surface structure; wherein the first fluorescence is generated by an entity selected from the group consisting of: a carbon nanodot, an alkaline earth metal fluoride, a dye-doped polymer, a dye-doped stabilized micelle, a P-dot—i.e.Type: ApplicationFiled: June 21, 2019Publication date: April 22, 2021Applicant: Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft und EnergieInventors: Knut Rurack, Kornelia Gawlitza, Martha Wamaitha Kimani, Shan Jiang, Anette Gjörloff-Wingren, Zahra El-Schich, Yuecheng Zhang
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Patent number: 10976256Abstract: A method for detecting an analyte comprising 2,4,6-trinitrotoluene in a sample comprising: providing an indicator solution, comprising a cation and an anion; bringing in contact and/or interacting the indicator solution and the sample comprising the analyte; photocatalytically induced forming of an anionic TNT sigma complex, comprising the analyte and the anion, by means of exposure of the indicator solution and the sample brought in contact with one another; fluorescence optically detecting the formed anionic TNT sigma complex.Type: GrantFiled: November 15, 2018Date of Patent: April 13, 2021Assignee: Bundesrepublik Deutschland, Vertreten Durch Den Bundesrepublik Für Wirtschaft Und EnergieInventors: Knut Rurack, Mustafa Biyikal
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Patent number: 10888829Abstract: Hybrid microparticle having a polymer core and a shell which surrounds the polymer core at least in sections and which has a silicon dioxide layer; characterized by an RF value, the RF value being defined as the ratio of an external surface area amenable to the adsorption of nitrogen to a surface area which is computable from an arithmetic mean diameter of the hybrid microparticle considered as an ideal sphere, where the shell has a structure selected from: closed and smooth, with the shell having an RF value of between 1 and 1.5; closed and hillocky, with the shell having an RF value of between 1.51 and 3; or open, with the shell having an RF value of greater than 3.01.Type: GrantFiled: March 17, 2017Date of Patent: January 12, 2021Assignee: Bundesrepublik Deutschland, Vertreten Durch Den Bundesrepublik Für Wirtschaft Und EnergieInventors: Dominik Sarma, Knut Rurack
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Publication number: 20200340989Abstract: A test strip comprising a porous matrix, the test strip includes a sample application zone for applying a liquid sample including an analyte; a reporter release zone, having a sensing material, the sensing material being adapted to selectively interact with the analyte by releasing an optical reporter, the reporter release zone being arranged downstream of the sample application zone; and a detection zone, having a capture material, the capture material being adapted to selectively bind the optical reporter and being arranged downstream of the reporter release zone.Type: ApplicationFiled: December 3, 2018Publication date: October 29, 2020Applicant: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Wirtschaft und EnergieInventors: Knut Rurack, Estela Climent, Wei Wan
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Patent number: 10730986Abstract: The present invention relates to a molecularly imprinted polymer for binding glycans, wherein the molecularly imprinted polymer is obtainable by providing a saccharide template such as a glycan; providing at least two functional monomers capable of cooperatively; interacting with the template; providing a crosslinking monomer; polymerizing the monomers optionally dissolved in a solvent, in presence of the saccharide template; and removing the template from the formed polymer. The invention is also related to a method for their production and use of the molecularly imprinted polymer.Type: GrantFiled: May 9, 2016Date of Patent: August 4, 2020Assignees: Phase Holographic Imaging PHI AB, Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft und EnergieInventors: Sudhirkumar Shinde, Anette Gjörloff Wingren, Knut Rurack, Börje Sellergren, Wei Wan
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Publication number: 20200232918Abstract: A method for the detection of hydrocarbon contamination in a sample is disclosed. The method includes contacting a sample with a molecular probe. The molecular probe has a photoluminescence which is environmentally sensitive. The photoluminescence from the molecular probe is collected. The method includes determining whether the photoluminescence is indicative of a hydrocarbon contaminated sample. A test strip for the detection of hydrocarbon contamination in a sample is also disclosed. The test strip includes a molecular probe embedded in a substrate and/or immobilized to the substrate, the molecular probe having a photoluminescence which is environmentally sensitive to hydrocarbon contaminated sample.Type: ApplicationFiled: September 29, 2017Publication date: July 23, 2020Applicant: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Wirtschaft und EnergieInventors: Raúl Gotor, Jérémy Bell, Knut Rurack
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Publication number: 20200225208Abstract: A method for the detection of adulterated gasoline in a sample is disclosed. The method includes contacting a sample with an immobilized molecular probe, the immobilized molecular probe having a photoluminescence which is environmentally sensitive; collecting the photoluminescence from the immobilized molecular probe; and determining whether the photoluminescence is indicative of adulterated gasoline. A test strip for the detection of adulterated gasoline in a sample is also disclosed, including an immobilized molecular probe embedded in a substrate and/or immobilized to the substrate, the immobilized molecular probe having photoluminescence which is environmentally sensitive to adulterated gasoline. The method and test strips are designed to be robust, portable, and within the capabilities of untrained personnel.Type: ApplicationFiled: September 29, 2017Publication date: July 16, 2020Applicant: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Energie Wirtschaft und EnergieInventors: Raúl Gotor, Jérémy Bell, Knut Rurack
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Publication number: 20200124597Abstract: An indicator reservoir, including a porous support material and an indicator substance which is enclosed in pores of the porous support material by a releasable pore-closing material, the pore closing material being bound to the porous support material by a compound that is anchored to the porous support material, the indicator substance being released from the pores when the pore closing material binds an analyte being present in a liquid that wets the indicator reservoir.Type: ApplicationFiled: March 19, 2018Publication date: April 23, 2020Applicants: Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Wirtschaft und Energie, FOSS Analytical A/SInventors: Estela Climent Terol, Knut Rurack, Claus Holm, Tamir Gil
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Publication number: 20200056994Abstract: Detection reagent for an analyte comprising an NOx group, wherein the detection reagent comprises an arylamine, and a structural formula of the arylamine is selected from the structural formulae 1, 2 and 3: or of the formulae 4 or 5: where R1 and R7 are selected from CO2or PhCO2X with X=4-iodophenyl; 4-bromophenyl or 4-chlorophenyl; 4-vinylphenyl or 4-allylphenyl; or R1 and R7 are selected from CO2Y or PhCO2Y with Y=2-methyl-3-pentyn-2-yl or 3-tert-butyl-4,4-dimethyl-1-pentyn-3-yl, or R7 is selected from CO2Z, PhCO2Z, C(O)NZ2 or PhC(O)NZ2 with (Z=alkyl, perfluoroalkyl, vinyl, allyl, homoallyl, aryl); where R2, R3, R4, and/or R5 are independently selected from H, F, an alkyl and an aryl; and where R6 is selected from an alkyl and an aryl.Type: ApplicationFiled: February 21, 2018Publication date: February 20, 2020Applicant: Institut Dr. Foerster GmbH & Co. KGInventors: Knut Rurack, Mustafa Biyikal
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Publication number: 20190154581Abstract: A method for detecting an analyte comprising 2,4,6-trinitrotoluene in a sample comprising: providing an indicator solution, comprising a cation and an anion; bringing in contact and/or interacting the indicator solution and the sample comprising the analyte; photocatalytically induced forming of an anionic TNT sigma complex, comprising the analyte and the anion, by means of exposure of the indicator solution and the sample brought in contact with one another; fluorescence optically detecting the formed anionic TNT sigma complex.Type: ApplicationFiled: November 15, 2018Publication date: May 23, 2019Applicant: Bundesrepublik Deutschland, Vertreten Durch Den Bundesrepublik Für Wirtschaft Und EnergieInventors: Knut Rurack, Mustafa Biyikal
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Publication number: 20190091647Abstract: Hybrid microparticle having a polymer core and a shell which surrounds the polymer core at least in sections and which has a silicon dioxide layer; characterized by an RF value, the RF value being defined as the ratio of an external surface area amenable to the adsorption of nitrogen to a surface area which is computable from an arithmetic mean diameter of the hybrid microparticle considered as an ideal sphere, where the shell has a structure selected from: closed and smooth, with the shell having an RF value of between 1 and 1.5; closed and hillocky, with the shell having an RF value of between 1.51 and 3; or open, with the shell having an RF value of greater than 3.01.Type: ApplicationFiled: March 17, 2017Publication date: March 28, 2019Applicant: Bundesrepublik Deutschland, Vertreten Durch Den Bundesrepublik Für Wirtschaft Und EnergieInventors: Dominik Sarma, Knut Rurack
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Publication number: 20180372704Abstract: A detection reagent for an analyte comprising a NOx-based group, wherein the detection reagent comprises an aryl amine and a structural formula of the aryl amine is selected from structural formulas 1, 2 or 3: wherein R1 is selected from CO2?, PhCO2?, CO2X or PhCO2X with X?H alkyl, vinyl, allyl, homoallyl or aryl or R1 stands for C(O)NX2 or PhC(O)NX2, with X?H, alkyl, perfluoroalkyl, vinyl, allyl, homoallyl or aryl; R2, R3, R4, and/or R5 independently of one another are selected from H, F, an alkyl or an aryl; and R6 is selected from an alkyl and an aryl.Type: ApplicationFiled: November 16, 2016Publication date: December 27, 2018Applicant: Institut Dr. Foerster GmbH & Co. KGInventors: Mustafa Biyikal, Knut Rurack
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Publication number: 20180142053Abstract: The present invention relates to a molecularly imprinted polymer for binding glycans, wherein the molecularly imprinted polymer is obtainable by providing a saccharide template such as a glycan; providing at least two functional monomers capable of cooperatively; interacting with the template; providing a crosslinking monomer; polymerizing the monomers optionally dissolved in a solvent, in presence of the saccharide template; and removing the template from the formed polymer. The invention is also related to a method for their production and use of the molecularly imprinted polymer.Type: ApplicationFiled: May 9, 2016Publication date: May 24, 2018Inventors: Börje SELLERGREN, Sudhirkumar SHINDE, Anette GJÖRLOFF WINGREN,, Knut RURACK