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. Author manuscript; available in PMC: 2017 Jan 13.
Published in final edited form as: Chem Rev. 2015 Dec 21;116(1):215–257. doi: 10.1021/acs.chemrev.5b00608

Figure 2.

Figure 2

Five classes of NW structures available today: basic (center), axial, core/shell, branched and kinked structures, clockwise from lower left. Reprinted with permission from Ref. 6. Copyright 2011 Materials Research Society.