Patents by Inventor Martin Mulvihill

Martin Mulvihill 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).

  • Surface-enhanced raman spectroscopy substrate for arsenic sensing in groundwater
    Patent number: 9057705
    Abstract: A surface-enhanced Raman spectroscopy (SERS) substrate formed from a plurality of monolayers of polyhedral silver nanocrystals, wherein at least one of the monolayers has polyvinypyrrolidone (PVP) on its surface, and thereby configured for sensing arsenic is described. Highly active SERS substrates are formed by assembling high density monolayers of differently shaped silver nanocrystals onto a solid support. SERS detection is performed directly on this substrate by placing a droplet of the analyte solution onto the nanocrystal monolayer. Adsorbed polymer, polyvinypyrrolidone (PVP), on the surface of the nanoparticles facilitates the binding of both arsenate and arsenite near the silver surface, allowing for highly accurate and sensitive detection capabilities.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 16, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Peidong Yang, Martin Mulvihill, Andrea R. Tao, Prasert Sinsermsuksakul, John Arnold
  • SURFACE-ENHANCED RAMAN SPECTROSCOPY SUBSTRATE FOR ARSENIC SENSING IN GROUNDWATER
    Publication number: 20090225310
    Abstract: A surface-enhanced Raman spectroscopy (SERS) substrate formed from a plurality of monolayers of polyhedral silver nanocrystals, wherein at least one of the monolayers has polyvinypyrrolidone (PVP) on its surface, and thereby configured for sensing arsenic is described. Highly active SERS substrates are formed by assembling high density monolayers of differently shaped silver nanocrystals onto a solid support. SERS detection is performed directly on this substrate by placing a droplet of the analyte solution onto the nanocrystal monolayer. Adsorbed polymer, polyvinypyrrolidone (PVP), on the surface of the nanoparticles facilitates the binding of both arsenate and arsenite near the silver surface, allowing for highly accurate and sensitive detection capabilities.
    Type: Application
    Filed: February 17, 2009
    Publication date: September 10, 2009
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Peidong Yang, Martin Mulvihill, Andrea R. Tao, Prasert Sinsermsuksakul, John Arnold