The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2025
Filed:
Sep. 12, 2022
Ali Dhinojwala, Akron, OH (US);
Ming Xiao, Cambridge, MA (US);
Ziying HU, Wilmette, IL (US);
Matthew Shawkey, Ghent, BE;
Nathan Gianneschi, Wilmette, IL (US);
Ali Dhinojwala, Akron, OH (US);
Ming Xiao, Cambridge, MA (US);
Ziying Hu, Wilmette, IL (US);
Matthew Shawkey, Ghent, BE;
Nathan Gianneschi, Wilmette, IL (US);
The University of Akron, Akron, OH (US);
University of California, San Diego, San Diego, CA (US);
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.