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).

  • Publication number: 20220016703
    Abstract: 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: Application
    Filed: October 1, 2019
    Publication date: January 20, 2022
    Inventors: Stephan Barcikowski, Marcus Lau, Friedrich Waag
  • Patent number: 10035112
    Abstract: 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: Grant
    Filed: November 25, 2013
    Date of Patent: July 31, 2018
    Assignee: Universitaet Duisburg Essen
    Inventors: Stephan Barcikowski, Marcus Lau
  • Patent number: 9403160
    Abstract: 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: Grant
    Filed: December 16, 2011
    Date of Patent: August 2, 2016
    Assignee: Particular GmbH
    Inventors: Stephan Barcikowski, Philipp Wagener, Andreas Schwenke
  • Patent number: 9243089
    Abstract: 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: Grant
    Filed: April 19, 2011
    Date of Patent: January 26, 2016
    Inventors: Stephan Barcikowski, Christin Menneking, Markus Klapper, Klaus Müllen, Michael Hoffmann, Simon Stelzig, Dennis Langanke, Helmut Goldmann
  • Patent number: 9097709
    Abstract: 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: Grant
    Filed: July 15, 2009
    Date of Patent: August 4, 2015
    Assignee: Laser Zentrum Hannover, e.V.
    Inventors: Stephan Barcikowski, Svea Petersen
  • Publication number: 20140171523
    Abstract: 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: Application
    Filed: November 25, 2013
    Publication date: June 19, 2014
    Inventors: Marcus Lau, Stephan Barcikowski
  • Patent number: 8649983
    Abstract: 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: Grant
    Filed: July 15, 2009
    Date of Patent: February 11, 2014
    Assignee: Masterrind, GmbH
    Inventors: Detlef Rath, Wilfried Kues, Ulrike Taylor, Stephan Barcikowski, Svea Petersen
  • Publication number: 20130331257
    Abstract: 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: Application
    Filed: December 16, 2011
    Publication date: December 12, 2013
    Applicant: LASER ZENTRUM HANNOVER E.V.
    Inventors: Stephan Barcikowski, Philipp Wagener, Andreas Schwenke
  • Publication number: 20130197628
    Abstract: 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: Application
    Filed: April 19, 2011
    Publication date: August 1, 2013
    Applicants: 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
  • Publication number: 20120094352
    Abstract: 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: Application
    Filed: July 15, 2009
    Publication date: April 19, 2012
    Applicant: MASTERRIND GMBH
    Inventors: Detlef Rath, Wilfried Kues, Ulrike Taylor, Stephan Barcikowski, Svea Petersen
  • Publication number: 20110189695
    Abstract: 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: Application
    Filed: July 15, 2009
    Publication date: August 4, 2011
    Applicant: LASER ZENTRUM HANNOVER E.V.
    Inventors: Stephan Barcikowski, Svea Petersen
  • Publication number: 20100291174
    Abstract: 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: Application
    Filed: February 1, 2008
    Publication date: November 18, 2010
    Inventors: Stephan Barcikowski, Thomas Lenarz, Timo Stoever
  • Publication number: 20100178311
    Abstract: 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: Application
    Filed: June 27, 2008
    Publication date: July 15, 2010
    Inventors: Stephan Barcikowski, Andreas Schuessler