(Counterclockwise from top) 1. Lithographically patterned bi-directionally selffolding metallic sheets with Cr-Cu bilayer hinges (Shenoy and Gracias, p. 847). 2. Endothelial cell elongated parallel to a vertical fibronectin pattern and membrane extensions along a horizontal peptide pattern forming a lamella (Kustra and Bettinger, p. 836). 3. Novel ZnO nanostructure formed due to the existence of ±(0001) polar surfaces (Wang, p. 814). 4. Nanoparticles in a mouse liver scavenged by special Kupffer cells marked K (Davis, p. 828). 5. Illustration of a time-domain thermorefl ectance (TDTR) measurement for a transfer-printed structure. Image courtesy of Jeremy Miller and Ryan Durdle, Imaging Technology Group, UIUC (Cahill, p. 855). 6. Hierarchical InGaN nanowire arrays grown on a Si (111) substrate yielding high surface area photoanodes (Yang, p. 806).