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. Author manuscript; available in PMC: 2013 Jan 17.

Published in final edited form as: Angew Chem Int Ed Engl. 2009;48(42):7787–7791. doi: 10.1002/anie.200903380

A) Normalized extinction spectra of the aqueous suspensions of silver right triangular bipyramid prepared with excitation at 500±20, 550±20, 600±20, and 650±20 nm respectively. B) Plot of extinction maximum of different bipyramids vs. different excitation wavelength.

A) Normalized extinction spectra of the aqueous suspensions of silver right triangular bipyramid prepared with excitation at 500±20, 550±20, 600±20, and 650±20 nm respectively. B) Plot of extinction maximum of different bipyramids vs. different excitation wavelength.