On diamond surface properties and interactions with neurons P. Ariano, O. Budnyk, S. Dalmazzo, D. Lovisolo, Ch. Manfredotti, P. Rivolo and E. Vittone Eur. Phys. J. E, 30 2 (2009) 149 Published online: 11 October 2009 DOI: 10.1140/epje/i2009-10520-9