Patents by Inventor Dmitri Y. Petrovykh
Dmitri Y. Petrovykh 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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Patent number: 10724934Abstract: Method for validating a resonator. The method comprises: providing a first set of resonator responses of the resonator pertaining to a first validation fluid, contacting the resonator and a second validation fluid, wherein the first and the second validation fluids have different viscoelastic properties, obtaining in contact with the second validation fluid a second set of resonator responses of the resonator, wherein each resonator response pertains to a resonance frequency or a dissipation of the resonator, validating the resonator by comparing a first and a second value, the first value being obtained from at least one resonator response of the first set of resonator responses and at least one resonator response from the second set of resonator responses, the second value being based on a relationship between frequency or dissipation responses of the resonator and a function of the viscoelastic properties of the first and the second validation fluid.Type: GrantFiled: June 9, 2017Date of Patent: July 28, 2020Assignee: INL—INTERNATIONAL IBERIAN NANOTECHNOLOGY LABORATORYInventors: Veronica Mugnaini, Dmitri Y Petrovykh
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Publication number: 20190277742Abstract: Method for validating a resonator. The method comprises: providing a first set of resonator responses of the resonator pertaining to a first validation fluid, contacting the resonator and a second validation fluid, wherein the first and the second validation fluids have different viscoelastic properties, obtaining in contact with the second validation fluid a second set of resonator responses of the resonator, wherein each resonator response pertains to a resonance frequency or a dissipation of the resonator, validating the resonator by comparing a first and a second value, the first value being obtained from at least one resonator response of the first set of resonator responses and at least one resonator response from the second set of resonator responses, the second value being based on a relationship between frequency or dissipation responses of the resonator and a function of the viscoelastic properties of the first and the second validation fluid.Type: ApplicationFiled: June 9, 2017Publication date: September 12, 2019Applicant: INL- International Iberian Nanotechnology LaboratoryInventors: Veronica Mugnaini, Dmitri Y. Petrovykh
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Patent number: 9896593Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of first polyelectrolyte chains to form a layer of the first polyelectrolyte on the substrate; and contacting the layer of the first polyelectrolyte with a second solution of second polyelectrolyte chains to form a layer of the second polyelectrolyte. The first polyelectrolyte has a polyanion or polycation chain. The second polyelectrolyte has a polyanion or polycation chain of a charge opposite to that of the first polyelectrolyte. The first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte chains in the aggregate-forming solution. The ionic species forms, via bridging interactions, aggregates of the polyelectrolyte chains that remain intact in the aggregate-forming solution during the contact.Type: GrantFiled: January 3, 2014Date of Patent: February 20, 2018Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud
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Patent number: 9895713Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of a first polyelectrolyte polymer to form a layer of the first polyelectrolyte polymer on the substrate; and contacting the layer of the first polyelectrolyte polymer with a second solution of a second polyelectrolyte polymer to form a layer of the second polyelectrolyte polymer on the layer of the first polyelectrolyte polymer. The first polyelectrolyte is a polyanion or polycation polymer. The second polyelectrolyte is a polyanion or polycation polymer of a charge opposite to that of the first polyelectrolyte polymer. At least one of the first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte polymer in the aggregate-forming solution.Type: GrantFiled: March 6, 2014Date of Patent: February 20, 2018Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud
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Publication number: 20140242376Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of a first polyelectrolyte polymer to form a layer of the first polyelectrolyte polymer on the substrate; and contacting the layer of the first polyelectrolyte polymer with a second solution of a second polyelectrolyte polymer to form a layer of the second polyelectrolyte polymer on the layer of the first polyelectrolyte polymer. The first polyelectrolyte is a polyanion or polycation polymer. The second polyelectrolyte is a polyanion or polycation polymer of a charge opposite to that of the first polyelectrolyte polymer. At least one of the first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte polymer in the aggregate-forming solution.Type: ApplicationFiled: March 6, 2014Publication date: August 28, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud
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Publication number: 20140193644Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of first polyelectrolyte chains to form a layer of the first polyelectrolyte on the substrate; and contacting the layer of the first polyelectrolyte with a second solution of second polyelectrolyte chains to form a layer of the second polyelectrolyte. The first polyelectrolyte has a polyanion or polycation chain. The second polyelectrolyte has a polyanion or polycation chain of a charge opposite to that of the first polyelectrolyte. The first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte chains in the aggregate-forming solution. The ionic species forms, via bridging interactions, aggregates of the polyelectrolyte chains that remain intact in the aggregate-forming solution during the contact.Type: ApplicationFiled: January 3, 2014Publication date: July 10, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud