Decoration of nanoparticles, in particular biomolecules, gathered high attention in recent years.(1-7) Of special interest is the potential use of biomolecules as templates for the fabrication of semiconducting or metallic nanostructures.(1-7,26) In this work we show the application of atomic layer deposition, a gas-phase thin film deposition process, to biological macromolecules, which are frequently used as templates in nanoscale science, and the possibility to fabricate metal oxide nanotubes and thin films with embedded biomolecules.(1-13).

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Golden viruses: The rodlike tobacco mosaic virus and citrate‐covered gold nanoparticles of 6‐nm diameter self‐assemble into a metal‐virus nanodumbbell. The gold nanoparticles selectively bind to the ends of the rods, and can be enlarged by electroless deposition to yield gold‐virus‐gold dumbbells (see picture).