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. Author manuscript; available in PMC: 2009 Sep 3.
Published in final edited form as: Chem Commun (Camb). 2008 Nov 19;(3):313–315. doi: 10.1039/b816736b

Fig. 1.

Fig. 1

(Top) TEM images of free QDs and QD/Ag nanocomposites showing the coupling of streptavidin-QDs to biotin-coated silver nanoparticles. (Bottom) Typical 10 × 10 μm fluorescence images of free QDs and QD/Ag nanocomposites. These two-dimensional images are 150 × 150 pixels and were acquired in less than one minute. Each pixel has a 0.6 ms dwell time and the fluorescence intensity is displayed on a colorized scale, ranging from dark to light. The excitation power in the microscope was maintained at less than 0.1 μW.