Intracellular localization of titanium dioxide-biomolecule nanocomposites T. Paunesku, N. Stojicevic, S. Vogt, J. Maser, B. Lai, T. Rajh, M. Thurnauer and G. Woloschak J. Phys. IV France, 104 (2003) 317-319 DOI: 10.1051/jp4:200300089