Back to results
US 7,776,130 B2Granted
pH-controlled photosynthesis of silver nanoprisms
AssigneeNorthwestern University
InventorsChad A. Mirkin, Can Xue
Life of this patent
Estimating the term…
Abstract
Silver nanoprisms having a unimodal size distribution are disclosed. The size of the nanoprisms can be controlled by adjusting the pH during irradiation of silver nanocrystals.
Claims15
A process for the production of monodisperse triangular Type II silver nanoprisms comprising:
- irradiating a mixture comprising silver nanocrystals with light having a first narrow band of wavelengths to form triangular Type I silver nanoprisms having unimodal size distribution, the mixture having a pH of about 10 to about 12;
- and
- irradiating a solution comprising the triangular Type I silver nanoprisms with light having a second narrow band of wavelengths to form triangular Type II silver nanoprisms having a unimodal size distribution and at least one edge length of about 100 nm to about 500 nm, the solution having a pH of about 6 to up to 8.
Dependencies are inferred from the claim text.