. Author manuscript; available in PMC: 2010 Jun 12.

Published in final edited form as: Chem Rev. 2010 May 12;110(5):2756–2782. doi: 10.1021/cr900266s

Table 2.

Comparison of the optical cross-sections of Au-based nanostructures obtained experimentally by photoacoustic imaging and theoretical calculation, respectively. (Reprinted with permission from ref 126. Copyright 2009 American Chemical Society.)

		Cross-section (10⁻¹⁵ m²)
		Extinction	Absorption	σ_a /σ_e
		(σ_e)	(σ_a)
Nanocages	Experimental	7.26± 0.06	5.96 ± 0.25	0.82 ± 0.04
(45.0 nm)	Calculated	19.88	16.26	0.82
Nanocages	Experimental	2.99 ± 0.04	3.05 ± 0.12	1 ± 0.04
(32.0 nm)	Calculated	6.39	6.02	0.94
Nanorods	Experimental	2.16 ± 0.02	1.87 ± 0.23	0.87 ± 0.11
(44.0 × 19.8 nm²)	Calculated	2.15	1.83	0.85
Nanospheres	Experimental	145 ±14.76	-	-
(150 nm)	Calculated	99.96	5.73	0.056