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US 2024/0182671 A1Published application
Polyimide-Gold-Nanorod J-aggregates with Broadened Surface Plasmonic Resonance Band and Method of Manufacture
AssigneeGovernment of the United States as Represented by the Secretary of the Air Force
InventorsLoon-Seng Tan, Zhenning Yu, Kyoungweon Park, Richard A. Vaia
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Abstract
The invention relates to nanohybrids that are gold nanorod J-aggregates having a broadened surface plasmonic resonance band, processes of making such gold nanorod J-aggregates and products comprising such gold nanorod J-aggregates. Such gold nanorod J-aggregates exhibit broad localized surface plasmonic reasonable range from 800 nm to 2000 nm.
Claims29
A gold nanorod J-aggregate having a localized surface plasmonic resonance band covering the range from 800 nm to 2,000 nm, said gold nanorod J-aggregate comprising:
- a) gold nanorods;
- and
- b) one or more polyimides, said one or more polyimides having a solubility of at least 5 g/L at 25° C. at 1 atmosphere of pressure in at least one solvent selected from the group consisting of N-methyl-pyrrolidinone, N,N-dimethylacetate, N,N-dimethylformamide, tetrahydrofuran, dichloromethane, chloroform, 1,4-dioxine, propylene carbonate, cyclopentanone and/or said one or more polyimides having a solubility of at least 5 g/L at 25° C. at 1 atmosphere of pressure in a mixture of two or more of said solvents.
A process of making a gold nanorod J-aggregate, said process comprising:
- a) combining;
- (i) a first solution comprising a solvent selected from the group consisting of 1-methylpyrrolidinone, N,N-dimethylacetamide, N,N-dimethylformamide, tetrahydrofuran, dichloromethane, chloroform, 1,4-dioxine and a mixtures thereof, and gold nanorods;
- and
- (ii) a second solution comprising a solvent selected from the group consisting of 1-methylpyrrolidinone, N,N-dimethylacetamide, propylene carbonate, tetrahydrofuran, 1,4-dioxine, ethyl acetate, acetone, dichloromethane, chloroform, ethanol, methanol, isopropanol and mixtures thereof and one or more polyimides,
- said one or more polyimides having a solubility of at least 5 g/L at 25° C. at 1 atmosphere of pressure in said first solution's solvent and said second solution's solvent;
- said first solution and said second solution being combined in a ratio of from 0.1:1 to about to about 10:1;
- said first solution having a concentration of gold nanorods of from about 0.01 nM to about 10 nM and said second solution having a the concentration of polyimide of from about 0.1 g/L to about 1000 g/L;
- b) combining:
- (i) a solution comprising a solvent, said solvent being selected from the group consisting of 1-methylpyrrolidinone, N,N-dimethylacetamide, N,N-dimethylformamide, tetrahydrofuran, dichloromethane, chloroform, 1,4-dioxine and mixtures thereof, gold nanorods and one or more polyimides;
- and
- (ii) a second solvent selected from the group consisting of 1-methylpyrrolidinone, N,N-dimethylacetamide, propylene carbonate, tetrahydrofuran, 1,4-dioxine, ethyl acetate, acetone, dichloromethane, chloroform, ethanol, methanol, isopropanol and mixtures thereof,
- said one or more polyimides having a solubility of at least 5 g/L at 25° C. at 1 atmosphere of pressure in said solution's solvent and said second solvent;
- said solution and said second solvent being combined in a ratio of from 0.1:1 about to about 10:1;
- said solution having a concentration of gold nanorods of from about 0.01 nM to about 10 nM and a concentration of polyimide of from about 0.1 g/L to about 1000 g/L;
- or
- c) combining:
- (i) a first solution comprising a solvent and gold nanorods, said solvent being selected from the group consisting of 1-methylpyrrolidinone, N,N-dimethylacetamide, propylene carbonate, tetrahydrofuran, 1,4-dioxine, ethyl acetate, acetone, dichloromethane, chloroform, ethanol, methanol, isopropanol and mixtures thereof, and
- (ii) a second solution comprising a solvent selected from the group consisting of 1-methylpyrrolidinone, N,N-dimethylacetamide, tetrahydrofuran, dichloromethane, chloroform, 1,4-dioxine and mixtures thereof and one or more polyimides;
- said one or more polyimides having a solubility of at least 5 g/L at 25° C. at 1 atmosphere of pressure in said first solution's solvent and said second solution's solvent;
- said first solution and said second solution being combined in a ratio of from 0.01:1 about to about 10:1, said first solution having a concentration of gold nanorods of from about 0.01 nM to about 10 nM and said second solution having a concentration of polyimide of from about 0.1 g/L to about 1000 g/L.
17 more elements
Dependencies are inferred from the claim text.