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. Author manuscript; available in PMC: 2008 Aug 22.
Published in final edited form as: Environ Sci Technol. 2007 Jul 15;41(14):5137–5142. doi: 10.1021/es062929a

Figure 2.

Figure 2

Figure 2

A. Transmission electron microscopy of Sesbania drummondii root cells loaded with gold nanoparticles (magnification = 20,000X; scale marker = 1.0 μm). B. Transmission electron microscopy of Sesbania drummondii root showing numerous gold nanoparticles surrounding organelles (magnification = 60,000X; scale marker = 500 nm). The inset on the top left shows energy-dispersive spectroscopic spectrum with gold and copper peaks (copper peaks arise from the copper grid that holds the plant tissue).