Published online by Cambridge University Press: 31 January 2011
Biomimetic layer-by-layer (BioLBL) is a layering method in which the binding and mineralization activities of a peptide aptamer are alternately used to accumulate layers of aptamer-displaying nanomaterials and thin mineral strata. We previously demonstrated this in aqua nanofabrication with BioLBL using a recombinant ferritin that displays an aptamer for titanium (minTBP-1) [K. Sano et al.: J. Am. Chem. Soc. 128, 1717 (2006); K. Sano et al.: Nano Lett.7, 3200 (2007)]. To expand the versatility of BioLBL, here we prepared a modified ferritin that was chemically ornamented with minTBP-1 and showed that BioLBL enables the formation of multiple layers of the chemically modified ferritin in a stepwise manner.