Data and code for: Pressure-driven electrokinetic coupling as a sign-sensitive modifier of amyloid-β transport in charged basement membrane–extracellular space microdomains

Frozen numerical results (CSV) and the FEniCSx-based reproduction pipeline supporting the figures and tables of the manuscript: the per-κ_BM electrokinetic transport sweep, confined-electrophoresis F_DLP classification, velocity-flux diagnostics, streaming-potential field verification, and the outlet-resistance robustness sweep. See README.md for the method nomenclature (Option A = divergence-free conserved formulation; Option B = local velocity-flux estimate) and MANIFEST.md for file checksums.