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US 10,514,381 B2Granted
Polymer dot compositions and related methods
AssigneeUniversity of Washington through its Center for Commercialization
InventorsDaniel T. Chiu, Wei Sun, Jiangbo Yu, Changfeng Wu, Fangmao Ye
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Abstract
Lyophilized chromophoric polymer dot compositions are provided. Also disclosed are methods of making and using the lyophilized compositions, methods of dispersing the lyophilized compositions in aqueous solutions and kits supplying the compositions.
Claims22
A lyophilized composition comprising:
- a lyophilization agent that comprises a carbohydrate;
- and
- a plurality of fluorescent nanoparticles, wherein:
- each fluorescent nanoparticle in the plurality of fluorescent nanoparticles comprises at least one condensed conjugated, semiconducting polymer;
- and
- the plurality of fluorescent nanoparticles after lyophilization has a quantum yield that is greater than 80% of the quantum yield of the plurality of fluorescent nanoparticles that have not been lyophilized,
- wherein the lyophilization agent is present between about 1% w/v and 50% w/v.
4 more elements
A kit comprising:
- a composition comprising a lyophilized lyophilization agent that comprises a carbohydrate and a plurality of lyophilized fluorescent nanoparticles, wherein:
- each lyophilized fluorescent nanoparticle in the plurality comprises at least one condensed conjugated, semiconducting polymer;
- and
- the plurality of lyophilized fluorescent nanoparticles after lyophilization has a quantum yield that is greater than 80% of the quantum yield of the plurality of fluorescent nanoparticles that have not been lyophilized;
- and
- a set of instructions describing combining the composition with an aqueous solution,
- wherein the lyophilized lyophilization agent is present between about 1% w/v and 50% w/v.
4 more elements
Dependencies are inferred from the claim text.