Advanced Materials

Cover image for Vol. 27 Issue 32

March 09, 2002

Genetically engineered meso- and nanostructures....

The reactive conversion of biosilica meso- and nanostrucures into new compositions with retention of shape and fine features is demonstrated. The shape-preserving nature of the chemical conversion process is illustrated for the reaction of silica-based diatom frustules with Mg gas to form MgO. This technique is promising for the mass production of a variety of low-cost genetically engineered meso- and nanodevices (K.H. Sandhage et al., March 18; Adv. Mater. 2002, 14, 429-433).

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