Patents by Inventor Steven Lenhert

Steven Lenhert 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).

  • Patent number: 8192794
    Abstract: Massive parallel printing of structures and nanostructures, including lipids, at high speed with high resolution and high quality using two dimensional arrays comprising cantilevers and tip-based transfer of material to a surface. The invention provides a nanolithographic method comprising (1) providing a two-dimensional array of a plurality of cantilevers, wherein the array comprises a plurality of base rows, each base row comprising a plurality of cantilevers extending from the base row, wherein each of the cantilevers comprising tips at the cantilever end away from the base row; wherein the two dimensional array has a support; (2) providing a patterning composition, wherein the composition comprises one or more lipids; (3) providing a substrate; (4) coating the tips of the cantilevers with the patterning composition; and (5) depositing at least some of the patterning composition from the tips to the substrate surface.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: June 5, 2012
    Assignees: Northwestern University, Karlsruhe Institute of Technology
    Inventors: Chad A. Mirkin, Peng Sun, Yuhuang Wang, Steven Lenhert
  • Publication number: 20120098974
    Abstract: Described is a calibration standard for determining the height of fluorescent microstructures, methods of using such a calibration standard, and a method of making such a calibration standard.
    Type: Application
    Filed: September 16, 2011
    Publication date: April 26, 2012
    Applicant: Florida State University Research Foundation
    Inventors: STEVEN LENHERT, Omkar A. Nafday
  • Publication number: 20120075441
    Abstract: Described is a device comprising a quorum sensor array and a method of using such a device. Also described are methods for calibrating a camera for microstructures.
    Type: Application
    Filed: September 29, 2011
    Publication date: March 29, 2012
    Applicant: FLORIDA STATE UNIVERSITY RESEARCH
    Inventor: Steven Lenhert
  • Publication number: 20120070885
    Abstract: Described is a device comprising lipid multilayer gratings.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 22, 2012
    Applicant: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION
    Inventor: STEVEN LENHERT
  • Publication number: 20090325816
    Abstract: Massive parallel printing of structures and nanostructures, including lipids, at high speed with high resolution and high quality using two dimensional arrays comprising cantilevers and tip-based transfer of material to a surface. The array is designed so only tips touch the surface. This can be accomplished by long tips and bent cantilevers and alignment. An article comprising: a two-dimensional array of a plurality of cantilevers, wherein the array comprises a plurality of base rows, each base row comprising a plurality of cantilevers, wherein each of the cantilevers comprise tips at the cantilever end away from the base, wherein the number of cantilevers is greater than 250, and wherein the tips have an apex height relative to the cantilever of at least four microns, and a support for the array. Combinatorial arrays and bioarrays can be prepared. The arrays can be manufactured by micromachining methods.
    Type: Application
    Filed: December 12, 2007
    Publication date: December 31, 2009
    Inventors: Chad A. Mirkin, Peng Sun, Yuhuang Wang, Steven Lenhert
  • Publication number: 20090143246
    Abstract: Better patterning methods, including for better methods for forming biomolecular arrays, including a method comprising: providing a tip and a substrate surface, disposing a patterning composition at the end of the tip, depositing at least some of the patterning composition from the tip to the substrate surface to form a deposit disposed on the substrate surface, wherein the patterning composition comprises at least one lipid, optionally at least one solvent, and at least one patterning species different from the lipid and the optional solvent. The lipid can be a phospholipid such as DOPC. The patterning species can be an oligonucleotide or a protein. Microarrays and nanoarrays can be prepared including nanoscale resolution of deposits. The lipid can activate patterning or increase the rate of patterning. Simplified tip preparation can be achieved. Nanoscopic, SPM, and AFM tips can be used.
    Type: Application
    Filed: June 17, 2008
    Publication date: June 4, 2009
    Inventors: Chad A. Mirkin, Ling Huang, Rafael A. Vega, Steven Lenhert
  • Publication number: 20080020141
    Abstract: A method for applying membrane lipids to a substrate includes providing a substrate and an ink reservoir having an ink including a membrane lipid. The tip of a scanning probe microscope is dipped into the ink so as to dispose the membrane lipid on the tip. The tip of the scanning probe microscope is brought into contact with a surface of the substrate. The tip is moved over regions of the surface so that the membrane lipid migrates from the tip of the scanning probe microscope onto the surface of the substrate in the regions and the membrane lipid organizes itself in the regions in a form of a single lipid layer or in a form of one or a plurality of mutually superposed lipid bilayers. The tip is removed from the surface of the substrate.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 24, 2008
    Applicant: FORSCHUNGSZENTRUM KARLSRUHE GMBH
    Inventors: Steven Lenhert, Harald Fuchs