Figure 2: In situ gold nanoparticle (GNP) templated-synthesis by protein polymer sequences. (a) UV-Vis spectrum of protein polymer-GNP nanocomposites at pH6 and pH8 (inset shows the templated-synthesis products of CE1-His6-GNP pH6 (I), E1C-His6-GNP pH6 (II), CE1-His6-GNP pH8 (III), E1C-His6-GNP pH8 (IV) and phosphate buffer-GNP pH8 (V)). TEM of (b) CE1-His6-GNP and (c) E1C-His6-GNP at pH8.