FIGURE 4.

3D-DX triangles with two or three particles attached. (a) Three 5 nm particles attached. Note that the triangles are not significantly distorted from ideality. (b) Two 5 nm particles and one 10 nm particle attached. Only minor distortions are seen. (c) Two 5 nm particles attached. This asymmetric distribution of particles produces separations close to the expected values. (d) Two 10 nm particles attached. Even 10 nm particles attached asymmetrically do not produce separations indicative of motif distortion.