Figure 3From: A review on radiation-induced nucleation and growth of colloidal metallic nanoparticlesTEM images of Cu and Cu@CuAlO 2 -Al 2 O 3 nanoparticles. (a) pure Cu nanoparticles and (b) Cu@CuAlO2-Al2O3 nanoparticles in core-shell structure [49].Back to article page