US 11,873,431 B2
Persistent luminescent nanoparticle and articles comprising the same
Brian Robert George, Honey Brook, PA (US); Brian Yust, Yardley, PA (US); and Abdur Rahaman Sk, Philadelphia, PA (US)
Assigned to Thomas Jefferson University, Philadelphia, PA (US)
Appl. No. 17/763,304
Filed by Thomas Jefferson University, Philadelphia, PA (US)
PCT Filed Sep. 25, 2020, PCT No. PCT/US2020/052633
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/062094, PCT Pub. Date Apr. 1, 2021.
Claims priority of provisional application 62/907,089, filed on Sep. 27, 2019.
Prior Publication US 2022/0333005 A1, Oct. 20, 2022
Int. Cl. C09K 11/02 (2006.01); C09K 11/77 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01)
CPC C09K 11/025 (2013.01) [C09K 11/7758 (2013.01); C09K 11/7769 (2013.01); C09K 11/7774 (2013.01); C09K 11/7792 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An article comprising a luminescent nanoparticle, wherein the luminescent nanoparticle is selected from the group consisting of oxide nanoparticles, aluminate nanoparticles, and germanate nanoparticles; wherein the luminescent nanoparticle is doped with one or more metals or rare-earth elements; and wherein the luminescent nanoparticle comprises a polymeric coating selected from the group consisting of: polyvinylpyrrolidone, polylactic acid, latex, and combinations thereof.