Patents by Inventor Matthew SHAWKEY

Matthew SHAWKEY 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).

  • Self-assembled melanin particles for color production
    Patent number: 12280349
    Abstract: In various embodiments, the present invention is directed to a facile one-pot reverse emulsion process to assemble core-shell nanoparticles (CS-SMNPs) into bright and noniridescent photonic supraballs. In one or more embodiments, the present invention is directed to core-shell nanoparticles having an inner high refractive index (RI) core and an outer low RI shell. In one or more embodiment, the present invention includes core-shell nanoparticles using high RI (˜1.74) melanin cores and low-RI (˜1.45) silica shells. In various embodiments, these nanoparticles may be self-assembled into bright and noniridescent supraballs using a scalable one-pot reverse emulsion process. According to various embodiments of the present invention, it is possible to generate a full spectrum of structural colors with the combination of only two ingredients, synthetic melanin and silica.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: April 22, 2025
    Assignees: The University of Akron, University of California, San Diego
    Inventors: Ali Dhinojwala, Ming Xiao, Ziying Hu, Matthew Shawkey, Nathan Gianneschi
  • SELF-ASSEMBLED MELANIN PARTICLES FOR COLOR PRODUCTION
    Publication number: 20230080523
    Abstract: In various embodiments, the present invention is directed to a facile one-pot reverse emulsion process to assemble core-shell nanoparticles (CS-SMNPs) into bright and noniridescent photonic supraballs. In one or more embodiments, the present invention is directed to core-shell nanoparticles having an inner high refractive index (RI) core and an outer low RI shell. In one or more embodiment, the present invention includes core-shell nanoparticles using high RI (˜1.74) melanin cores and low-RI (˜1.45) silica shells. In various embodiments, these nanoparticles may be self-assembled into bright and noniridescent supraballs using a scalable one-pot reverse emulsion process. According to various embodiments of the present invention, it is possible to generate a full spectrum of structural colors with the combination of only two ingredients, synthetic melanin and silica.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 16, 2023
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: Ali DHINOJWALA, Ming XIAO, Ziying HU, Matthew SHAWKEY, Nathan GIANNESCHI
  • SELF-ASSEMBLED MELANIN PARTICLES FOR COLOR PRODUCTION
    Publication number: 20190275491
    Abstract: In various embodiments, the present invention is directed to a facile one-pot reverse emulsion process to assemble core-shell nanoparticles (CS-SMNPs) into bright and noniridescent photonic supraballs. In one or more embodiments, the present invention is directed to core-shell nanoparticles having an inner high refractive index (RI) core and an outer low RI shell. In one or more embodiment, the present invention includes core-shell nanoparticles using high RI (˜1.74) melanin cores and low-RI (˜1.45) silica shells. In various embodiments, these nanoparticles may be self-assembled into bright and noniridescent supraballs using a scalable one-pot reverse emulsion process. According to various embodiments of the present invention, it is possible to generate a full spectrum of structural colors with the combination of only two ingredients, synthetic melanin and silica.
    Type: Application
    Filed: November 22, 2017
    Publication date: September 12, 2019
    Inventors: Ali DHINOJWALA, Ming XIAO, Ziying HU, Matthew SHAWKEY, Nathan GIANNESCHI