(19)

(11)

EP 4 816 493 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24817242.1 (22) Date of filing: 28.11.2024

(51) International Patent Classification (IPC):  C09K 23/22(2022.01) C11D 1/48(2006.01) C09K 23/52(2022.01) (52) Cooperative Patent Classification (CPC): C09K 23/22; C09K 23/52 (86) International application number: PCT/EP2024/083894 (87) International publication number: WO 2025/114425 (05.06.2025 Gazette 2025/23)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 29.11.2023 GB 202318206 (71) Applicant: Fluidic Sciences Limited Royston SG8 5HW (GB)	(72) Inventors: KADHIM, Alaa Cambridge Cambridgeshire CB21 6AL (GB) LI, Xin Cambridge Cambridgeshire CB21 6AL (GB) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)