(19)

(11)

EP 1 718 959 A1

(12)

(43) Date of publication: 08.11.2006 Bulletin 2006/45 (21) Application number: 05716705.8 (22) Date of filing: 16.02.2005

(51) International Patent Classification (IPC):  G01N 25/68(2006.01) (86) International application number: PCT/EP2005/050665 (87) International publication number: WO 2005/078421 (25.08.2005 Gazette 2005/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 16.02.2004 IT MI20040249 (71) Applicant: CONSIGLIO NAZIONALE DELLE RICERCHE 00198 Roma (IT)	(72) Inventor: BERNARDI, Adriana I-35134 Padova (IT) (74) Representative: Gervasi, Gemma et al Notarbartolo & Gervasi S.p.A., Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)