Photosensitization of oxygen molecules by surface-modified hydrophilic porous Si M. Fujii, N. Nishimura, H. Fumon, S. Hayashi, K. Akamatsu, T. Tsuruoka, M. Shimada, H. Katayama, D. Kovalev and B. Goller Eur. Phys. J. D, 43 1-3 (2007) 193-196 Published online: 24 May 2007 DOI: 10.1140/epjd/e2007-00096-6