Patents by Inventor Rajesh Sardar

Rajesh Sardar 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: 12163183
    Abstract: Biosensors and methods for localized surface plasmon resonance biosensing are disclosed. The biosensor can include a substrate having a substrate surface to which a plurality of localized surface plasmon resonance (LSPR) antennae are affixed. The LSPR antennae can be affixed via an affixation surface of the LSPR antenna. The LSPR antennae can have a functional surface opposite the affixation surface. Each functional surface can be functionalized by a plurality of single-stranded DNA.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 10, 2024
    Assignee: INDIANA UNIVERSITY RESEARCH AND TECHNOLOGY CORPORATION
    Inventors: Rajesh Sardar, Thakshila Liyanage, Adrianna Masterson, Hristos Z. Kaimakliotis
  • Publication number: 20240393241
    Abstract: Disclosed herein is a plasmonic molecular device consisting photoisomerizable molecular switch-tethered gold triangular nanoprisms and methods for using such device for the detection of biomarkers. The molecular device exhibits unprecedentedly large localized surface plasmon resonance shifts during the photoisomerization of molecular switches. The fabricated molecular device with zwitterionic structure has been utilized to develop adaptable nanoplasmonic biosensor for ultrasensitive. highly specific and programmable detection of microRNAs and proteins from patient biofluids.
    Type: Application
    Filed: September 7, 2022
    Publication date: November 28, 2024
    Inventors: Rajesh SARDAR, Barry B. MUHOBERAC, Adrianna N. MASTERSON, Sumon HATI
  • Publication number: 20240313644
    Abstract: Provided is planar electro-magnetic device with both inductive and capacitive characteristics comprising a calcium copper titanate CCTO nanoparticle film. The planar electro-magnetic device may be used in a circuit of a power electronic device, such as a converter, signal electronic, and/or communication device. Further, a method of making the CCTO nanoparticle film is provided. The method comprising combining gOLAc and OLAm, heating the OLAc and OLAm, adding metal alkoxide precursors to the OLAc and OLAm to create CCTO NPs, purifying the CCTO NPs, adding sulfide ions to the NP, dispersing the sulfide ion passivated CCTO NP in solvent, and spin coating a film of CCTO NP onto aluminum foil.
    Type: Application
    Filed: February 6, 2024
    Publication date: September 19, 2024
    Inventors: Euzeli Cipriano dos Santos, Jr., Rajesh Sardar, Haitham Kanakri
  • Publication number: 20210348218
    Abstract: Biosensors and methods for localized surface plasmon resonance biosensing are disclosed. The biosensor can include a substrate having a substrate surface to which a plurality of localized surface plasmon resonance (LSPR) antennae are affixed. The LSPR antennae can be affixed via an affixation surface of the LSPR antenna. The LSPR antennae can have a functional surface opposite the affixation surface. Each functional surface can be functionalized by a plurality of single-stranded DNA.
    Type: Application
    Filed: October 22, 2019
    Publication date: November 11, 2021
    Inventors: Rajesh SARDAR, Thakshila LIYANAGE, Adrianna MASTERSON, Hristos Z. KAIMAKLIOTIS
  • Patent number: 10858693
    Abstract: Biosensors and methods for localized surface plasmon resonance biosensing are disclosed. The biosensor can include a substrate having a substrate surface to which a plurality of localized surface plasmon resonance (LSPR) antennae are affixed. The LSPR antennae can be affixed via an affixation surface of the LSPR antenna. The LSPR antennae can have a functional surface opposite the affixation surface. Each functional surface can be functionalized by a plurality of single-stranded DNA.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 8, 2020
    Assignee: INDIANA UNIVERSITY RESEARCH & TECHNOLOGY CORPORATION
    Inventors: Rajesh Sardar, Murray Korc, Gayatri K. Joshi
  • Publication number: 20170298426
    Abstract: Biosensors and methods for localized surface plasmon resonance biosensing are disclosed. The biosensor can include a substrate having a substrate surface to which a plurality of localized surface plasmon resonance (LSPR) antennae are affixed. The LSPR antennae can be affixed via an affixation surface of the LSPR antenna. The LSPR antennae can have a functional surface opposite the affixation surface. Each functional surface can be functionalized by a plurality of single-stranded DNA.
    Type: Application
    Filed: October 6, 2015
    Publication date: October 19, 2017
    Applicant: INDIANA UNIVERSITY RESEARCH & TECHNOLOGY CORPORATION
    Inventors: Rajesh Sardar, Murray Korc, Gayatri K. Joshi
  • Patent number: 8231969
    Abstract: The invention provides methods and compositions having at least one asymmetrically functionalized nanoparticle. An asymmetrically functionalized nanoparticle can comprise a nanoparticle core having an outer surface, a primary group of first ligands attached to a substantially continuous primary region of the outer surface, and a secondary group of second ligands attached to a substantially continuous secondary region of the outer surface, such that the primary group of first ligands and the secondary group of second ligands comprise a different ligand population.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: July 31, 2012
    Assignee: University of Utah Research Foundation
    Inventors: Jennifer S. Shumaker-Parry, Rajesh Sardar
  • Patent number: 7999025
    Abstract: The invention provides methods and compositions having one-dimensional nanoparticle chains. A one-dimensional nanoparticle chain can comprise a linear substantially non-crosslinked polymer having pendant groups and asymmetrically functionalized nanoparticles attached to the polymer through the pendant groups. Additionally, an asymmetrically functionalized nanoparticle can comprise a nanoparticle core having an outer surface, a primary group of first ligands attached to a substantially continuous primary region of the outer surface, and a secondary group of second ligands attached to a substantially continuous secondary region of the outer surface, such that the primary group of first ligands and the secondary group of second ligands comprise a different ligand population.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: August 16, 2011
    Assignee: University of Utah Research Foundation
    Inventors: Jennifer S. Shumaker-Parry, Rajesh Sardar
  • Publication number: 20100227189
    Abstract: A method of synthesizing ligand-capped metal nanoparticles is disclosed and described. A method of synthesizing ligand-capped metal nanoparticles can comprise reacting a metal salt with 9-borabicyclo [3.3.1] nonane as a reducing agent in the presence of a capping ligand to form the ligand-capped metal nanoparticles. The method can be a single step approach which also significantly broadens choices for capping agents which can be readily incorporated during formation of the metal nanoparticles.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 9, 2010
    Inventors: Jennifer S. Shumaker-Parry, Rajesh Sardar, Patrick M. Shem
  • Publication number: 20090256116
    Abstract: The invention provides methods and compositions having at least one asymmetrically functionalized nanoparticle. An asymmetrically functionalized nanoparticle can comprise a nanoparticle core having an outer surface, a primary group of first ligands attached to a substantially continuous primary region of the outer surface, and a secondary group of second ligands attached to a substantially continuous secondary region of the outer surface, such that the primary group of first ligands and the secondary group of second ligands comprise a different ligand population.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 15, 2009
    Inventors: Jennifer S. Shumaker-Parry, Rajesh Sardar
  • Publication number: 20090221764
    Abstract: The invention provides methods and compositions having one-dimensional nanoparticle chains. A one-dimensional nanoparticle chain can comprise a linear substantially non-crosslinked polymer having pendant groups and asymmetrically functionalized nanoparticles attached to the polymer through the pendant groups. Additionally, an asymmetrically functionalized nanoparticle can comprise a nanoparticle core having an outer surface, a primary group of first ligands attached to a substantially continuous primary region of the outer surface, and a secondary group of second ligands attached to a substantially continuous secondary region of the outer surface, such that the primary group of first ligands and the secondary group of second ligands comprise a different ligand population.
    Type: Application
    Filed: January 28, 2009
    Publication date: September 3, 2009
    Inventors: Jennifer S. Shumaker-Parry, Rajesh Sardar