Controlled formation of biosilica structures in vitroElectronic supplementary information (ESI) available: incorporation of silica-condensing peptide into the silica structure. See http://www.rsc.org/suppdata/cc/b2/b210635c/

Herein we describe the controlled formation of biosilica structures by manipulation of the physical reaction environment; we were able to synthesize arched and elongated silica structures using a synthetic peptide; the results presented here are evidence that in vitro biocatalysis may be controlled in order to form desired silica structures.