Patent · US Active

Photoluminescent nanoparticles and their synthesis and uses

US10316246B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

The Hong Kong Polytechnic University · CN

Inventors

Pei Li · Hong Kong, CN
Yuan Yao · Stanford, US
Dechao Niu · Shanghai, CN

Key dates

Filing date	May 31, 2017
Grant date	Jun 11, 2019
Priority date	—
Expiry date	Jul 25, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2211/14
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention discloses a method of preparing polymeric photoluminescent dots in water using inexpensive non-conjugated polymers. The resulting polymeric photoluminescent dots display the following properties: excellent water dispersibility, low toxicity, high absorptivity, good photo-stability and high quantum yield. The photoluminescent properties are not influenced by aggregation-caused quenching effect. The method is amenable to scale-up and is environmentally friendly.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.