Reversible positioning at submicrometre scale of carbon nanotubes mediated by pH-sensitive poly(amino-methacrylate) patternsElectronic supplementary information (ESI) available: Experimental procedures, XPS spectra and AFM images. See DOI: 10.1039/c0cc04256k

The selective adsorption of carbon nanotubes (CNTs) on a pH-reversible PDMAEMA patterned gold surface is presented. In acidic conditions, a selective CNTs adsorption onto the polymer brushes is obtained due to ammonium–π interactions. The reversible behavior was shown by successive treatments in both alkaline and acidic solutions with CNTs. [ABSTRACT FROM AUTHOR]