Patents by Inventor Srinivasan Sampath

Srinivasan Sampath 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: 10144722
    Abstract: The present invention is to provide highly solid state emissive fluorophores of the formula 1 and 2 useful for the solid state lighting. The formula 1 and 2 have good solid state emission in blue and green region respectively. The zinc complexes of formula 1A and 2A have yellow and red emission respectively in solid state. The present invention also provide high solid state emissive assay of formula 1 and 2 to convert UV light into visible light by coating the color tunable materials on the 365-nm emitting solid state LED. The present invention further provides carbazole end-capped bipyridine for screening of metal salts with different counterions in solutions. The discrimination of the various metal salts can be monitored by noting the fluorescence change in solution. The zinc salts with different counterions have different emission color in solution. The present invention also develop a new two photon active fluorescent Zn2+ specific probe for detecting Zn2+ in cellular environments.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 4, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ajayaghosh Ayyappanpillai, Divya Kizhumuri, Srinivasan Sampath
  • Patent number: 9828371
    Abstract: Methods of making diazaperopyrenium dications with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, and uses thereof are provided.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 28, 2017
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: J. Fraser Stoddart, Ashish N. Basuray, Karel J. Hartlieb, Srinivasan Sampath, Henri-Pierre Jacquot de Rouville
  • Publication number: 20170057946
    Abstract: The present invention is to provide highly solid state emissive fluorophores of the formula 1 and 2 useful for the solid state lighting. The formula 1 and 2 have good solid state emission in blue and green region respectively. The zinc complexes of formula 1A and 2A have yellow and red emission respectively in solid state. The present invention also provide high solid state emissive assay of formula 1 and 2 to convert UV light into visible light by coating the color tunable materials on the 365-nm emitting solid state LED. The present invention further provides carbazole end-capped bipyridine for screening of metal salts with different counterions in solutions. The discrimination of the various metal salts can be monitored by noting the fluorescence change in solution. The zinc salts with different counterions have different emission color in solution. The present invention also develop a new two photon active fluorescent Zn2+ specific probe for detecting Zn2+ in cellular environments.
    Type: Application
    Filed: October 4, 2016
    Publication date: March 2, 2017
    Inventors: Ajayaghosh Ayyappanpillai, Divya Kizhumuri, Srinivasan Sampath
  • Publication number: 20160368913
    Abstract: Methods of making diazaperopyrenium dications with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, and uses thereof are provided.
    Type: Application
    Filed: September 26, 2014
    Publication date: December 22, 2016
    Inventors: J. Fraser Stoddart, Ashish N. Basuray, Karel J. Hartlieb, Srinivasan Sampath, Henri-Pierre Jacquot de Rouville
  • Patent number: 9493488
    Abstract: The present invention is to provide highly solid state emissive fluorophores of the formula 1 and 2 useful for the solid state lighting. The formula 1 and 2 have good solid state emission in blue and green region respectively. The zinc complexes of formula 1A and 2A have yellow and red emission respectively in solid state. The present invention also provide high solid state emissive assay of formula 1 and 2 to convert UV light into visible light by coating the color tunable materials on the 365-nm emitting solid state LED. The present invention further provides carbazole end-capped bipyridine for screening of metal salts with different counterions in solutions. The discrimination of the various metal salts can be monitored by noting the fluorescence change in solution. The zinc salts with different counterions have different emission color in solution. The present invention also develop a new two photon active fluorescent Zn2+ specific probe for detecting Zn2+ in cellular environments.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: November 15, 2016
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ajayaghosh Ayyappanpillai, Divya Kizhumuri, Srinivasan Sampath
  • Patent number: 9120799
    Abstract: Described herein are methods of generating 4,4?-bipyridinium radical cations (BIPY•+), and methods for utilizing the radical-radical interactions between two or more BIPY•+ radical cations that ensue for the creation of novel materials for applications in nanotechnology. Synthetic methodologies, crystallographic engineering techniques, methods of physical characterization, and end uses are described.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: September 1, 2015
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Albert C. Fahrenbach, Jonathan C. Barnes, Hao Li, J. Fraser Stoddart, Ashish Neil Basuray, Srinivasan Sampath
  • Publication number: 20140023883
    Abstract: The present invention is to provide highly solid state emissive fluorophores of the formula 1 and 2 useful for the solid state lighting. The formula 1 and 2 have good solid state emission in blue and green region respectively. The zinc complexes of formula 1A and 2A have yellow and red emission respectively in solid state. The present invention also provide high solid state emissive assay of formula 1 and 2 to convert UV light into visible light by coating the color tunable materials on the 365-nm emitting solid state LED. The present invention further provides carbazole end-capped bipyridine for screening of metal salts with different counterions in solutions. The discrimination of the various metal salts can be monitored by noting the fluorescence change in solution. The zinc salts with different counterions have different emission color in solution. The present invention also develop a new two photon active fluorescent Zn2+ specific probe for detecting Zn2+ in cellular environments.
    Type: Application
    Filed: February 14, 2012
    Publication date: January 23, 2014
    Applicant: Council of Scientific & Industrial Research
    Inventors: Ajayaghosh Ayyappanpillai, Divya Kizhumuri, Srinivasan Sampath
  • Patent number: 8343572
    Abstract: The present invention is in relation to a composition of electrode material in the form of a coating, said composition represented by formula Mn1-xO/C, wherein Mn1-xO is the monoxide of manganese with x is ?0 and ?0.1 and C is carbon. In addition, the invention also provides a process for deposition of aforementioned composition in the form of a nanocomposite coat on the electrode of an electrochemical capacitor in the fields of automobile, aerospace engineering and applications, very large scale integrated circuits (VLSI) technology, micro-electro-mechanical systems (MEMS) and combinations thereof.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: January 1, 2013
    Inventors: Ashish Varade, Ajjampur Srinivasarao Shivashankar, Sukanya Dhar, Srinivasan Sampath
  • Publication number: 20110110019
    Abstract: The present invention is in relation to a composition of electrode material in the form of a coating, said composition represented by formula Mn1-xO/C, wherein Mn1-xO is the monoxide of manganese with x is ?0 and ?0.1 and C is carbon. In addition, the invention also provides a process for deposition of aforementioned composition in the form of a nanocomposite coat on the electrode of an electrochemical capacitor in the fields of automobile, aerospace engineering and applications, very large scale integrated circuits (VLSI) technology, micro-electro-mechanical systems (MEMS) and combinations thereof.
    Type: Application
    Filed: August 29, 2007
    Publication date: May 12, 2011
    Inventors: Ashish Varade, Ajjampur Srinivasarao Shivashankar, Sukanya Dhar, Srinivasan Sampath