Patents by Inventor Axel Scherer

Axel Scherer 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: 9791372
    Abstract: Methods and algorithms for a multiplexed single detection channel amplification process and quantification of generated amplicons is presented. Various mathematical approaches for quantifying and verifying the amplicons in a reaction are presented. Usage of such methods and approaches allow upgrading of existing single and multiple channel instruments for further multiplexing capabilities.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: October 17, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Imran R. Malik, Xiomara Linnette Madero, Erika F. Garcia, Sheel Mukesh Shah, Axel Scherer
  • Publication number: 20170250048
    Abstract: Nanoscale field-emission devices are presented, wherein the devices include at least a pair of electrodes separated by a gap through which field emission of electrons from one electrode to the other occurs. The gap is dimensioned such that only a low voltage is required to induce field emission. As a result, the emitted electrons energy that is below the ionization potential of the gas or gasses that reside within the gap. In some embodiments, the gap is small enough that the distance between the electrodes is shorter than the mean-free path of electrons in air at atmospheric pressure. As a result, the field-emission devices do not require a vacuum environment for operation.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 31, 2017
    Inventors: Axel SCHERER, William M. JONES, Danil M. LUKIN, Sameer WALAVALKAR, Chieh-feng CHANG
  • Publication number: 20170122939
    Abstract: Devices, systems, and methods for detection of an analyte in a sample are disclosed. In some embodiments, an optical sensor can include a metallic layer and a plurality of dielectric pillars extending through the metallic layer. A plurality of regions of concentrated light can be supported in proximity to the ends of the plurality of dielectric pillars when a surface of the metallic layer is illuminated. Concentrated light within one or more of these regions can interact with an analyte molecule, allowing for detection of the analyte.
    Type: Application
    Filed: August 9, 2016
    Publication date: May 4, 2017
    Inventors: Sameer Sudhir Walavalkar, Andrew Peter Homyk, William Maxwell Jones, Axel Scherer, Scott Fraser, Thai Viet Truong
  • Patent number: 9624487
    Abstract: An apparatus for purifying nucleic acid can include a disposable cartridge having a layered configuration, and a disposable syringe for coupling to the disposable cartridge such that a fluid can be delivered to or withdrawn fluid from the disposable cartridge using the syringe. At least one layer of the disposable cartridge can include a cut-out for forming a functional unit of the disposable cartridge, and at least one layer of the disposable cartridge can be joined to an adjacent layer of the disposable cartridge by an adhesive material layer. The functional unit can include a fluid channel between an access port on the first surface of the disposable cartridge and the fluid pouch. The apparatus can include a disposable silica-containing material for binding with the nucleic acid. The apparatus can include a heating element and a temperature sensor for heating the disposable silica-containing material.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: April 18, 2017
    Assignee: California Institute of Technology
    Inventors: Samuel Njoroge, George Maltezos, Axel Scherer, John B. Gorman
  • Patent number: 9618477
    Abstract: Methods and devices for sequencing nucleic acids are disclosed herein. Devices are also provided herein for measuring DNA with nano-pores sized to allow DNA to pass through the nano-pore. The capacitance can be measured for the DNA molecule passing through the nano-pore. The capacitance measurements can be correlated to determine the sequence of base pairs passing through the nano-pore to sequence the DNA.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: April 11, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Sameer Walavalkar, Axel Scherer, Thomas A. Tombrello, Aditya Rajagopal, Andrew P. Homyk, Erika Garcia
  • Patent number: 9606060
    Abstract: A device and method are described in which the lifetime of a fluorescent species or fluorophores is detected in the absence of any optical filter. Based on the measured fluorescent lifetimes, molecules or compounds attached to a fluorophores such as small organic molecules, polymers, peptides, saccharides and nucleic acids can be identified or assayed.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 28, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Samson Chen, Aditya Rajagopal, Axel Scherer
  • Publication number: 20170072399
    Abstract: PC board fluidic devices for performing a Polymerase Chain Reaction (PCR) are disclosed. The devices comprise a printed circuit board and a PCR chamber. The PCR chamber is a fluidic chamber and is located in, or is part of, the PC board. The PC board can include a coil trace heating element with a temperature sensor and controller.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventors: Aditya RAJAGOPAL, Samson CHEN, Axel SCHERER, Christopher I. WALKER
  • Publication number: 20170074786
    Abstract: MIR spectroscopy systems comprising hierarchical spectral dispersion that enables fine spectral resolution and high sensitivity spectroscopy are disclosed. Hierarchical spectral dispersion is derived by employing at least two diffractive lens arrays, located on either side of a test sample, each receiving input radiation having an input spectral range and distributing the input radiation into a plurality of output signals, each having a fraction of the spectral range of the input radiation. As a result, the signal multiplication factor of the two arrays is multiplied in a manner that mitigates the propagation of wavelength harmonics through the system. In some embodiments, an emitter array comprising a plurality of spectrally selective emitters provides the input MIR radiation to a spectroscopy system. In some embodiments, spectrally selective detectors are used to detect narrow spectral components in the radiation after they have passed through the test sample.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Axel Scherer, Frank T. Hartley
  • Publication number: 20170055835
    Abstract: A sensing device allows detection of biological quantities in ways that are minimally invasive. Micrometer or nanometer sized needles allow sensing of bodily fluids in a minimally invasive method. The device comprises electronics and power harvesting. Antennas or coils allow communication and power harvesting from an external device, which can be attached to smartphones to allow operation of a camera and camera light for biosensing.
    Type: Application
    Filed: July 28, 2016
    Publication date: March 2, 2017
    Inventors: Axel SCHERER, Muhammad Mujeeb-U-Rahman, Meisam Honavar Nazari, Muhammad Musab Jilani
  • Patent number: 9580679
    Abstract: Disclosed herein are methods and systems for use in preparing a sample. The methods and systems may be used for lysing one or more structures in a sample (e.g., cells, viral particles, etc.). The methods and compositions may comprise a microfluidic chip or use thereof. The microfluidic chips disclosed herein may comprise (a) a substrate comprising a chamber, wherein at least one mechanical element may be located within the chamber; (b) a thermal element in contact with the chamber; and (c) at least one aperture within the surface of the substrate, wherein the aperture may be configured to insulate the chamber.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: February 28, 2017
    Assignee: California Institute of Technology
    Inventors: Samuel Njoroge, John Gorman, George Maltezos, Axel Scherer
  • Publication number: 20170045684
    Abstract: Methods for fabricating flexible substrate nanostructured devices are disclosed. The nanostructures comprise nano-pillars and metallic bulbs or nano-apertures. The nanostructures can be functionalized to detect biological entities. The flexible substrates can be rolled into cylindrical tubes for detection of fluidic samples.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 16, 2017
    Inventors: Chieh-feng CHANG, Sameer WALAVALKAR, Scott E. FRASER, Axel SCHERER
  • Patent number: 9561505
    Abstract: Devices and system for preparing samples are described. Such devices can comprise fluidic chambers, reservoirs, and movable structures for controlling the movement of samples. The device can also comprise functional elements for performing specific operations.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: February 7, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Imran R. Malik, Axel Scherer
  • Publication number: 20170020415
    Abstract: Wireless electrochemical measurements methods using minimally invasive micro-sensors that monitor response of cells to specific analytes are described. Micro-actuators integrated on a same chip as the micro-sensors are used to provide closed loop in-vivo local therapy on demand. An in-vivo bio-electronic system that can monitor the health of cell colonies and accordingly dispense corresponding therapeutic drugs is also described.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Inventors: Axel SCHERER, Arti GAUR
  • Publication number: 20170020416
    Abstract: A fully integrated small size implantable sensing device is described, which can include a sensor and an electronic circuit to interface with the sensor and communicate with an external device. Various fabrication methods for the sensing device are described, including provision of wells, created using same fabrication technology as the electronic circuit, to contain electrodes of the sensor and corresponding functionalization chemicals. Such implantable sensing device can be used for a variety of electrochemical measuring applications within a living body as well as actuation by injecting a current into the living body.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Inventors: Axel SCHERER, Meisam Honarvar NAZARI, Muhammad MUJEEB-U-RAHMAN, Mehmet SENCAN, Arti GAUR
  • Publication number: 20170001195
    Abstract: A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
    Type: Application
    Filed: June 3, 2016
    Publication date: January 5, 2017
    Inventors: Marc Alexander Unger, Hou-Pu Chou, Todd A. Thorsen, Axel Scherer, Stephen R. Quake, Markus Enzelberger, Mark L. Adams, Carl L. Hansen
  • Patent number: 9533308
    Abstract: An apparatus for performing a Polymerase Chain Reaction (PCR) is disclosed. The apparatus comprises a PCR chamber for performing a Polymerase Chain Reaction and a printed circuit board (PCB) fluidic device. The PCR chamber is a fluidic chamber and is located in, or is part of, the printed circuit board (PCB) fluidic device. A method for manufacturing an apparatus for performing the Polymerase Chain Reaction and a method for performing the Polymerase Chain Reaction are further disclosed.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: January 3, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Aditya Rajagopal, Samson Chen, Axel Scherer, Christopher I. Walker
  • Patent number: 9525312
    Abstract: The present disclosure describes a method for optically powering transducers and related transducers with a photovoltaic collector. An optical fiber power delivery method and a free space power delivery method are also provided. A fabrication process for making an optically powered transducer is further described, together with an implantable transducer system based on optical power delivery.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: December 20, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Axel Scherer, Aditya Rajagopal, Seheon Kim, Andrew P. Homyk
  • Patent number: 9524900
    Abstract: Novel methods to fabricate biological sensors and electronics are disclosed. A silicon-on-insulator wafer can be employed by etching a pattern of holes in the silicon layer, then a pattern of cavities in the insulating layer, and then sealing the top of the cavities. Further, n or p doped regions and metallic regions can be defined in the processed wafer, thereby enabling integration of biological sensing and electronic capabilities in the same wafer.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 20, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Sameer Walavalkar, Mark D. Goldberg, Axel Scherer
  • Patent number: 9518291
    Abstract: Methods and devices for biological sample preparation and analysis are disclosed. A device may have a linear or circular arrangement of containers, with a connecting structure such as a bar or disk. Fluidics channels between containers allow the performance of different techniques for sample preparation, such as lysing, washing and elution. Different functional elements, such as grinders or mixers, may be attached to the containers. The device may have a reaction cartridge with a reaction chamber to perform techniques such as polymerase chain reaction.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: December 13, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Imran R. Malik, Erika F. Garcia, Xiomara Linnette Madero, Axel Scherer
  • Patent number: 9518917
    Abstract: MIR spectroscopy systems comprising hierarchical spectral dispersion that enables fine spectral resolution and high sensitivity spectroscopy are disclosed. Hierarchical spectral dispersion is derived by employing at least two diffractive lens arrays, located on either side of a test sample, each receiving input radiation having an input spectral range and distributing the input radiation into a plurality of output signals, each having a fraction of the spectral range of the input radiation. As a result, the signal multiplication factor of the two arrays is multiplied in a manner that mitigates the propagation of wavelength harmonics through the system. In some embodiments, an emitter array comprising a plurality of spectrally selective emitters provides the input MIR radiation to a spectroscopy system. In some embodiments, spectrally selective detectors are used to detect narrow spectral components in the radiation after they have passed through the test sample.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: December 13, 2016
    Assignee: California Institute of Technology
    Inventors: Axel Scherer, Frank T. Hartley