Plasmonics-active metal nanostar compositions and methods of use
AssigneeDuke University
InventorsTuan Vo-Dinh, Hsiangkuo Yuan, Andrew Fales
Life of this patent
Estimating the term…
Abstract
A plasmonics-active gold nanostar results from the following process: adding citrate stabilized gold seeds to a solution of tetrachloroauric acid (HAuCl4) under acidic conditions; and mixing a silver salt compound and a weak reducing agent simultaneously into the solution of HAuCl4 under conditions such that the plasmonics-active gold nanostar is produced. The plasmonics-active gold nanostar has a size of at least about 30 nm and up to about 80 nm, comprises a plasmon peak in the near-infrared region, comprises an optical label and a bioreceptor, and is a nucleic acid.
Claims20
A plasmonics-active gold nanostar resulting from a process comprising:
- adding citrate stabilized gold seeds to a solution of tetrachloroauric acid (HAuCl4) under acidic conditions;
- and mixing a silver salt compound and a weak reducing agent into the solution of HAuCl4 under conditions such that the plasmonics-active gold nanostars are produced,
- wherein the gold nanostar has a size of at least about 30 nm and up to about 80 nm,
- wherein the gold nanostar comprises a plasmon peak in the near-infrared region,
- wherein the gold nanostar comprises an optical label and a bioreceptor, and
- wherein the bioreceptor is a nucleic acid.
Dependencies are inferred from the claim text.