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. 2026 Oct 14;658(8136):650–657. doi: 10.1038/s41586-026-11141-y

Extended Data Fig. 7. Validation of the hybrid force-field description and VIE calculation protocol.

Extended Data Fig. 7

a-f, Radial distribution functions between polymer surface atoms and water molecules for PE, PVC, and PMMA systems. Top panels (a-c) show gpolymer−Ow(r), and bottom panels (d-f) show gpolymer−Hw(r). For PE, carbon atoms are used as representative surface sites; for PVC, chlorine atoms; and for PMMA, the carbonyl (COOR) oxygen atoms. Solid and dashed lines correspond to different force-field descriptions (OPLS-AA/C-GeM and OPLS-AA/SPC/E, respectively). g, Comparison of VIE values computed with and without inclusion of the PE polymer configurations. Each point corresponds to an individual configuration. The close agreement between the two sets of results indicates that polymer inclusion has a negligible effect on the computed VIE.