Figure 7: Schematic representation of end-functionalized PHB block copolymers complexing onto an Ni-NTA-derivatized solid surface. The inset shows a part of his-tag complexed with Ni-NTA on the surface. R represents Ni-NTA and R2 for the rest of histidine units. Paik et al. (2005) [60]. Reproduced by permission of the Royal Society of Chemistry.