Patents by Inventor Riccardo Bertacco

Riccardo Bertacco 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: 11313793
    Abstract: An opto-magnetic device includes an integrated optical circuit having an input for an input optical radiation and at least one output for an output optical radiation. The optical circuit defines an area sensible to the variations of a local refraction index probed by the optical radiation, destined to come in contact with the sample. A plurality of probe molecules are included to anchor to the sensible area, and a plurality of magnetic particles are included to anchor to molecules of the analyte, bound to the probe molecules upon a molecular recognition. A magnetic actuator is configured to generate a variable magnetic field and oscillate the magnetic particles to cause variation of the refraction index probed by the optical radiation in the sensible area, and a variation of at least one characteristic parameter of the output optical radiation correlated to a concentration of the molecules of the analyte.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 26, 2022
    Assignee: POLITECNICO DI MILANO
    Inventors: Riccardo Bertacco, Andrea Ivano Melloni, Parikshit Pratim Sharma, Nicola Peserico
  • Publication number: 20220097051
    Abstract: Apparatus (100) for the quantification of biological components (3, 3?, 3?) in a fluid comprising: a measurement cell (1) comprising detection electrodes (4, 4?, 5, 5?, 6, 6?, 34, 34?, 84, 84?, 94, 94?, 184, 184?, 194, 194?) and reference electrodes (7, 7,? 8, 8?, 9, 9?, 37, 37?, 64, 64?, 74, 74?, 164, 164?, 174?); an electronic unit (201) for the generation of input signals, impedimetric measurement, amplification of output signals and communication with a user interface; means for the generation of a magnetic field (101, 102, 103) with an appropriate gradient that can be modulated in time, said means of magnetisation being configured to generate a magnetic field capable of causing, in combination with concentrators (10, 10?, 10?, 14, 14?, 14?, 15) housed in the measurement cell, the separation of the components (3, 3?, 3?) to be quantified from the rest of the solution and their concentration on the detection electrodes (4, 4?, 5, 5?, 6, 6?, 34, 34?, 84, 84?, 94, 94?, 184, 184?, 194, 194?).
    Type: Application
    Filed: January 17, 2020
    Publication date: March 31, 2022
    Inventors: Riccardo Bertacco, Gianfranco Beniamino Fiore, Giorgio Ferrari, Marco Giacometti, Francesca Milesi, Lorenzo Pietro Coppadoro, Giuliani Enrico
  • Publication number: 20210325484
    Abstract: A device for sensing a magnetic field, comprising a closed superconducting loop configured to collect a magnetic field to be sensed, hereinafter external magnetic field, the closed superconducting loop having a path width (wp) and being provided with a constriction having a width (wc) narrower than the path width, the constriction generating a non-uniform magnetic field, hereinafter internal magnetic field, in response to the external magnetic field, a vibrating mechanical oscillator coupled to, or formed by the constriction and responsive to the internal magnetic field, and a detector configured to detect deflection or vibration of the mechanical oscillator and providing a signal indicative of the deflection or vibration.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 21, 2021
    Inventors: Luca PELLEGRINO, Nicola Manca, Daniele Marre', Federico Remaggi, Riccardo Bertacco, Federico Maspero, Warner Jurriën Venstra, Stefania Della Penna, Ingo Hilschenz, Alexei Kalaboukhov, Filomena Lombardi
  • Publication number: 20210086182
    Abstract: A device for the quantification of cellular and non-cellular components in a blood sample including detection electrodes including a first electrode connected with a first input to receive a first signal in input and a second electrode, reference electrodes including a first electrode connected with a second input configured to receive a second signal in input of opposite polarity to the first input signal and a second electrode connected to the second electrode of said detection electrodes, in a common point wherefrom an output signal is picked up, a ferromagnetic concentrator that cooperates with an external magnetic field external to effectuate concentration of said components on said detection electrodes, a substrate configured to house said detection electrodes, reference electrodes, and concentrator; a support configured to collect a blood sample, and a spacer element to confine in the substrate plane the blood sample and to distance said substrate from said support.
    Type: Application
    Filed: July 17, 2018
    Publication date: March 25, 2021
    Applicant: Politecnico di Milano
    Inventors: Riccardo BERTACCO, Daniela PETTI, Giorgio FERRARI, Edoardo ALBISETTI, Marco GIACOMETTI
  • Publication number: 20200386680
    Abstract: An opto-magnetic device includes an integrated optical circuit having an input for an input optical radiation and at least one output for an output optical radiation. The optical circuit defines an area sensible to the variations of a local refraction index probed by the optical radiation, destined to come in contact with the sample. A plurality of probe molecules are included to anchor to the sensible area, and a plurality of magnetic particles are included to anchor to molecules of the analyte, bound to the probe molecules upon a molecular recognition. A magnetic actuator is configured to generate a variable magnetic field and oscillate the magnetic particles to cause variation of the refraction index probed by the optical radiation in the sensible area, and a variation of at least one characteristic parameter of the output optical radiation correlated to a concentration of the molecules of the analyte.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 10, 2020
    Applicant: Politecnico di Milano
    Inventors: Riccardo BERTACCO, Andrea Ivano MELLONI, Parikshit Pratim SHARMA, Nicola PESERICO
  • Publication number: 20160172092
    Abstract: Method for magnetic nanopatterning of a substrate 10, said substrate comprising a first ferromagnetic or ferrimagnetic phase FM and a second antiferromagnetic phase AF, said FM and AF phases being coupled by exchange bias in such a way to form an exchange bias system; said method comprising submitting said substrate to a magnetic field Hw so as to set the magnetization of said first phase FM in the direction of said magnetic field Hw, while heating predefined portions of said antiferromagnetic phase AF up to a writing temperature TW at which the exchange bias can be influenced, equipment for carrying out said method and substrate nanopatterned according to said method.
    Type: Application
    Filed: November 12, 2015
    Publication date: June 16, 2016
    Inventors: Riccardo BERTACCO, Daniela PETTI, Edoardo ALBISETTI, Elisa RIEDO
  • Patent number: 8779763
    Abstract: A sensor is described for detecting the presence of a magnetic nanoparticle (N). The sensor is arranged on a support (1), on which a plurality of non-magnetic contacts (Iin, GND, V1, V2) electrically conductively connected to the sensor is disposed. The contacts are adapted to be connected to means for measuring magnetoresistance. The sensor includes a planar ferromagnetic nanostructure (3), comprising a detection area (31) shaped as a strip bent to form a corner. The detection area is adapted to selectively assume, as a response to an applied magnetic field, a first spin configuration comprising a transverse “head-to-head” domain wall (TW), and a second spin configuration, wherein such domain wall (TW) is absent. The transition from the first configuration to the second configuration is affected by the proximity of a magnetic nanoparticle (N) to the detection area.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: July 15, 2014
    Assignee: Politecnico di Milano
    Inventors: Riccardo Bertacco, Paolo Vavassori
  • Publication number: 20110037463
    Abstract: A sensor is described for detecting the presence of a magnetic nanoparticle (N). The sensor is arranged on a support (1), on which a plurality of non-magnetic contacts (Iin, GND, V1, V2) electrically conductively connected to the sensor is disposed. The contacts are adapted to be connected to means for measuring magnetoresistance. The sensor includes a planar ferromagnetic nanostructure (3), comprising a detection area (31) shaped as a strip bent to form a corner. The detection area is adapted to selectively assume, as a response to an applied magnetic field, a first spin configuration comprising a transverse “head-to-head” domain wall (TW), and a second spin configuration, wherein such domain wall (TW) is absent. The transition from the first configuration to the second configuration is affected by the proximity of a magnetic nanoparticle (N) to the detection area.
    Type: Application
    Filed: April 22, 2009
    Publication date: February 17, 2011
    Inventors: Riccardo Bertacco, Paolo Vavassori