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US 11,697,713 B2Granted
Chromophoric polymer dots with narrow-band emission
AssigneeUniversity of Washington through its Center for Commercialization
InventorsDaniel T. Chiu, Changfeng Wu, Yu Rong, Yong Zhang, Yi-Che Wu, Yang-Hsiang Chan, Xuanjun Zhang, Jiangbo Yu, Wei Sun
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Abstract
Polymers, monomers, chromophoric polymer dots and related methods are provided. Highly fluorescent chromophoric polymer dots with narrow-band emissions are provided. Methods for synthesizing the chromophoric polymers, preparation methods for forming the chromophoric polymer dots, and biological applications using the unique properties of narrow-band emissions are also provided.
Claims26
A polymer dot comprising:
- A condensed chromophoric polymer comprising a narrow-band monomer and one or more general monomers wherein the narrow-band monomer is integrated into the chromophoric polymer, the condensed chromophoric polymer having an emission spectrum with a full width half maximum (FWHM) of 5 nm to 70 nm,
- wherein a ratio of a number of the narrow-band monomer to the general monomers is 1:20 to 1:1000;
- and wherein the general monomers comprise energy donors and the narrow-band monomer is an energy acceptor configured to receive energy from one or more of the general monomers,
- wherein the polymer dot is a sub-micron sized particle,
- wherein the condensed chromophoric polymer is collapsed or packed in the sub-micron sized particle,
- wherein the chromophoric polymer is a semiconducting polymer,
- wherein the narrow-band monomer is selected from the group consisting of a BODIPY monomer, a BODIPY derivative monomer, a squaraine monomer, a squaraine derivative monomer, a metal complex monomer, a metal complex derivative monomer, a porphyrin monomer, and a porphyrin derivative monomer, and
- wherein the general monomers are selected from the group consisting of:
- fluorene, a fluorene derivative, phenylene vinylene, a phenylene vinylene derivative, phenylene, a phenylene derivative, benzothiadiazole, a benzothiadiazole derivative, thiophene, a thiophene derivative, carbazole fluorene, and a carbazole fluorene derivative.
6 more elements
A polymer dot comprising:
- a condensed chromophoric polymer comprising a narrow-band unit and one or more general monomers wherein the narrow band unit is attached to a backbone or a sidechain of the chromophoric polymer, wherein the condensed chromophoric polymer having an emission spectrum with a full width half maximum (FWHM) of 5 mm to 70 nm,
- wherein a ratio of a number of the narrow-band unit to the general monomer is 1:20 to 1:1000 and wherein general monomers comprise energy donors and the narrow-band unit is an energy acceptor configured to receive energy from one or more of the general monomers,
- wherein the polymer dot is a sub-micron sized particle,
- wherein the condensed chromophoric polymer is collapsed or packed in the sub-micron sized particle,
- wherein the chromophoric polymer is a semiconducting polymer,
- wherein the narrow-band unit is selected from the group consisting of a fluorescent nanoparticle embedded in or attached to the polymer dot, a BODIPY monomer, a BODIPY derivative monomer, a squaraine monomer, a squaraine derivative monomer, a metal complex monomer, a metal complex derivative monomer, a porphyrin monomer, and a porphyrin derivative monomer, and
- wherein the general monomers comprise a first general monomer and a second general monomer, wherein the first general monomer and the second general monomer are each independently selected from the group consisting of:
- fluorene, a fluorene derivative, phenylene vinylene, a phenylene vinylene derivative, phenylene, a phenylene derivative, benzothiadiazole, a benzothiadiazole derivative, thiophene, a thiophene derivative, carbazole fluorene, and a carbazole fluorene derivative.
5 more elements
Dependencies are inferred from the claim text.