Linear polymer brush structures of poly(methacrylic acid) chains, exhibiting a width from several hundred to 20–30 nm and a controllable height (nano-“hedge”), were grafted from designer substrates by photopolymerization using thiol-based iniferters assembled on Au nano-lines. The Au nano-lines were obtained using H-terminated silicon substrates by AFM tip assisted (“dip-pen”) nanolithography of HAuCl4 which yielded Au nano-wires upon reduction in contact with the substrate. The polymeric nano-“hedge” structures were characterized by AFM.
Zapotoczny, S. J., Benetti, E. M., & Vancso, G. J. (2007). Preparation and Characterization of Macromolecular "Hedge" Brushes Grafted from Au Nanowires. Journal of materials chemistry, 17, 3293-3296. https://doi.org/10.1039/B707379H