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A surface functional monomer-directing strategy is described for the highly dense imprinting of 2,4,6-trinitrotoluene (TNT) molecules at the surface of silica nanoparticles. It is shown that the imprinting method at the surface of silica is applicable to imprinting various organic molecules such as estrone and amino acids and the monomer-directing approach has formed a basis of a new strategy for preparing various functional polymer-coating layers on silica support.

A simple polypeptide-directed strategy for fabricating large spherical assembly of CaCO3 nanoparticles is reported. Stepwise growth and assembly of a large number of nanoparticles are observed, from the formation of an amorphous liquidlike CaCO3-polypeptide precursor, to the crystallization and stabilization of polypeptide-capped nanoparticles, and, eventually the spherical assembly of nanoparticles.