(19)

(11)

EP 3 679 177 A1

(12)

(43) Date of publication: 15.07.2020 Bulletin 2020/29 (21) Application number: 18853747.6 (22) Date of filing: 07.09.2018

(51) International Patent Classification (IPC):  C25B 3/10(2006.01) C25B 11/12(2006.01) C25B 11/04(2006.01) C25B 3/04(2006.01) (86) International application number: PCT/US2018/050016 (87) International publication number: WO 2019/051268 (14.03.2019 Gazette 2019/11)

(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: KH MA MD TN (30) Priority: 07.09.2017 US 201762555503 P 22.03.2018 US 201862646816 P (71) Applicant: The Trustees of Princeton University Princeton, NJ 08544 (US)	(72) Inventors: BOCARSLY, Andrew Plainsboro NJ 08536 (US) PARIS, Aubrey Delran NJ 08075 (US) FRANCIS, Sonja, A. Princeton NJ 08540 (US) CHU, An Amherst MA 01002 (US) (74) Representative: Phillips & Leigh LLP  Temple Chambers 3-7 Temple Avenue London EC4Y 0DA London EC4Y 0DA (GB)