(19)

(11)

EP 1 290 441 A1

(12)

(43) Date of publication: 12.03.2003 Bulletin 2003/11 (21) Application number: 01936652.5 (22) Date of filing: 06.06.2001

(51) International Patent Classification (IPC)7: G01N 33/487, C12M 1/34 (86) International application number: PCT/GB0102/490 (87) International publication number: WO 0109/4939 (13.12.2001 Gazette 2001/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 06.06.2000 GB 0013584 (71) Applicant: Xention Discovery Limited HistonCambridge CB4 9ZR (GB)	(72) Inventors: OWEN, David,CeNes Limited Cambridge CB4 9ZR (GB) SILVERTHORNE, Andrew,CeNeS Limited Cambridge CB4 9ZR (GB) (74) Representative: Davies, Jonathan Mark  Reddie & Grose16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)