Patents by Inventor Stephan Barcikowski
Stephan Barcikowski 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: 20220016703Abstract: The invention shows a device for producing nanoparticles, the device having a pulsed laser with a scanning device for guiding the beam of the laser over a target that is fixed in a flow-through chamber. The flow-through chamber is reversibly connected to a supply line for carrier fluid, so that the flow-through chamber is exchangeable e.g. for a further flow-through chamber having a different target and/or a different dimensioning.Type: ApplicationFiled: October 1, 2019Publication date: January 20, 2022Inventors: Stephan Barcikowski, Marcus Lau, Friedrich Waag
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Patent number: 10035112Abstract: The invention provides a process for the production of nanoparticles as well as a device that is disposed for the production of the nanoparticles. The process is especially characterized in that the nanoparticles are pure, especially free from organic carbon compounds, preferably carbon-free, and are obtained continuously. The nanoparticles which are obtainable by the process of the invention are characterized in that they are present without an organic ligand in suspension and are especially preferred stable as a suspension against agglomeration, wherein the medium having the particles suspended therein is free from organic carbon compounds, especially carbon-free.Type: GrantFiled: November 25, 2013Date of Patent: July 31, 2018Assignee: Universitaet Duisburg EssenInventors: Stephan Barcikowski, Marcus Lau
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Patent number: 9403160Abstract: The invention relates to a method for producing micro-nano combined active systems in which nanoparticles of a first component are bonded to microparticles of a second component, comprising the following steps: (a) producing a low-ligand colloidal suspension containing nanoparticles of the first component, (b) adding microparticles to the colloidal suspension containing the nanoparticles or adding the colloidal suspension containing the nanoparticles to a dispersion containing the microparticles and intensively mixing so that the nanoparticles adsorb onto the microparticles, (c) separating the microparticles and the nanoparticles bonded thereto from the liquid and drying the microparticles and the nanoparticles bonded thereto.Type: GrantFiled: December 16, 2011Date of Patent: August 2, 2016Assignee: Particular GmbHInventors: Stephan Barcikowski, Philipp Wagener, Andreas Schwenke
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Patent number: 9243089Abstract: Copolymer-modified nanoparticles produced by a process in which nanoparticles are ablated by laser radiation from a surface of a substrate in a liquid include an amphiphilic copolymer.Type: GrantFiled: April 19, 2011Date of Patent: January 26, 2016Inventors: Stephan Barcikowski, Christin Menneking, Markus Klapper, Klaus Müllen, Michael Hoffmann, Simon Stelzig, Dennis Langanke, Helmut Goldmann
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Patent number: 9097709Abstract: The invention relates to a method and to a device for producing conjugates comprising or consisting of a metallic nanoparticulate component and an organic component. Said method enables activated or reactive nanoparticles containing metal to be produced by irradiating a metal body with a laser beam and prevents the modification and damage of organic components of said conjugates by laser irradiation. Said nanoparticulate metallic component comprises plasmon resonant metal. According to the invention, the claimed method of production enables particles having a metal centre and a metal-oxide covering to be produced, in particular when using a carrier fluid containing oxygen, e.g. alcohol or water.Type: GrantFiled: July 15, 2009Date of Patent: August 4, 2015Assignee: Laser Zentrum Hannover, e.V.Inventors: Stephan Barcikowski, Svea Petersen
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Publication number: 20140171523Abstract: The invention provides a process for the production of nanoparticles as well as a device that is disposed for the production of the nanoparticles. The process is especially characterized in that the nanoparticles are pure, especially free from organic carbon compounds, preferably carbon-free, and are obtained continuously. The nanoparticles which are obtainable by the process of the invention are characterized in that they are present without an organic ligand in suspension and are especially preferred stable as a suspension against agglomeration, wherein the medium having the particles suspended therein is free from organic carbon compounds, especially carbon-free.Type: ApplicationFiled: November 25, 2013Publication date: June 19, 2014Inventors: Marcus Lau, Stephan Barcikowski
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Patent number: 8649983Abstract: The present invention relates to a method and to compounds useable in the method for analysis of cells for the presence of an analyte and sorting the cells on the basis of the analyte. The compounds used in the method are optically detectable because of the content of a fluorochrome and contain a binder fraction which can specifically bind an analyte, in particular an oligonucleotide.Type: GrantFiled: July 15, 2009Date of Patent: February 11, 2014Assignee: Masterrind, GmbHInventors: Detlef Rath, Wilfried Kues, Ulrike Taylor, Stephan Barcikowski, Svea Petersen
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Publication number: 20130331257Abstract: The invention relates to a method for producing micro-nano combined active systems in which nanoparticles of a first component are bonded to microparticles of a second component, comprising the following steps: (a) producing a low-ligand colloidal suspension containing nanoparticles of the first component, (b) adding microparticles to the colloidal suspension containing the nanoparticles or adding the colloidal suspension containing the nanoparticles to a dispersion containing the microparticles and intensively mixing so that the nanoparticles adsorb onto the microparticles, (c) separating the microparticles and the nanoparticles bonded thereto from the liquid and drying the microparticles and the nanoparticles bonded thereto.Type: ApplicationFiled: December 16, 2011Publication date: December 12, 2013Applicant: LASER ZENTRUM HANNOVER E.V.Inventors: Stephan Barcikowski, Philipp Wagener, Andreas Schwenke
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Publication number: 20130197628Abstract: Copolymer-modified nanoparticles produced by a process in which nanoparticles are ablated by laser radiation from a surface of a substrate in a liquid include an amphiphilic copolymer.Type: ApplicationFiled: April 19, 2011Publication date: August 1, 2013Applicants: AESCULAP AG, Max Planck Gesellschaft zur Foerderung der Wissenschaften e.V., LASER ZENTRUM HANNOVER E.V.Inventors: Stephan Barcikowski, Christin Menneking, Markus Klapper, Klaus Müllen, Michael Hoffmann, Simon Stelzig, Dennis Langanke, Helmut Goldmann
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Publication number: 20120094352Abstract: The present invention relates to a method and to compounds useable in the method for analysis of cells for the pre-sence of an analyte and sorting the cells on the basis of the analyte. The compounds used in the method are optically detectable because of the content of a fluorochrome and contain a binder fraction which can specifically bind an analyte, in particular an oligonucleotide.Type: ApplicationFiled: July 15, 2009Publication date: April 19, 2012Applicant: MASTERRIND GMBHInventors: Detlef Rath, Wilfried Kues, Ulrike Taylor, Stephan Barcikowski, Svea Petersen
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Publication number: 20110189695Abstract: The invention relates to a method and to a device for producing conjugates comprising or consisting of a metallic nanoparticulate component and an organic component. Said method enables activated or reactive nanoparticles containing metal to be produced by irradiating a metal body with a laser beam and prevents the modification and damage of organic components of said conjugates by laser irradiation. Said nanoparticulate metallic component comprises plasmon resonant metal. According to the invention, the claimed method of production enables particles having a metal centre and a metal-oxide covering to be produced, in particular when using a carrier fluid containing oxygen, e.g. alcohol or water.Type: ApplicationFiled: July 15, 2009Publication date: August 4, 2011Applicant: LASER ZENTRUM HANNOVER E.V.Inventors: Stephan Barcikowski, Svea Petersen
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Publication number: 20100291174Abstract: The present invention is directed to a biologically active device with a main body made from a polymer, in which bioactive nanoparticles of one or several materials are embedded, wherein the nanoparticles of at least one material proliferatively act on a biological material contacted by the device, and wherein nanoparticles of a different material act in an anti-proliferative manner on biological material in the ambience of the device. The invention is also directed to a method of manufacturing a biologically active device with a main body made from a polymer, wherein nanoparticles of several different materials are dispersed in an injection-moldable fluid, and the fluid is shaped into the polymer main body by means of injection molding and curing, such that the nanoparticles are dispersed in the bulk of the polymer main body.Type: ApplicationFiled: February 1, 2008Publication date: November 18, 2010Inventors: Stephan Barcikowski, Thomas Lenarz, Timo Stoever
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Publication number: 20100178311Abstract: The invention is directed to an implant (1) with a main body (2) having a surface (5,6), and with a coating (7) of nanoparticles (8) provided at least on portions of the surface (5,6) of the main body (2), wherein the main body (2) is made from a material with a metal lattice structure, and the nanoparticles (8) of the coating (7) comprise a material which also has a metal lattice structure. The implant is characterized by the lattice structure of the material of the nanoparticles (8) being compatible in such a way to the lattice structure of the material of the main body (2), that both materials are mutually connectable by a diffusion process, in particular by a diffusion joining process. The invention is also directed to a method for manufacturing such an implant, wherein the method of manufacturing allows the simultaneous coating of a plurality of implants (1) under “mild” process conditions.Type: ApplicationFiled: June 27, 2008Publication date: July 15, 2010Inventors: Stephan Barcikowski, Andreas Schuessler