(19)

(11)

EP 3 215 647 A2

(12)

(88) Date of publication A3: 07.07.2016 (43) Date of publication: 13.09.2017 Bulletin 2017/37 (21) Application number: 15813478.3 (22) Date of filing: 05.11.2015

(51) International Patent Classification (IPC):  C22C 1/02(2006.01) C22C 1/06(2006.01) C22C 23/02(2006.01) C22C 1/03(2006.01) C22C 23/00(2006.01) (86) International application number: PCT/GB2015/053351 (87) International publication number: WO 2016/071694 (12.05.2016 Gazette 2016/19)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 05.11.2014 GB 201419715 (71) Applicant: Brunel University Uxbridge Middlesex UB8 3PH (GB)	(72) Inventors: NADENDLA, Hari Babu Uxbridge Middlesex UB8 3PH (GB) JOSHI, Utsavi Uxbridge Middlesex UB8 3PH (GB) (74) Representative: Williams Powell  11 Staple Inn London WC1V 7QH London WC1V 7QH (GB)