Permeability is one of the most fundamental transport properties in soft matter physics, material engineering, and nanofluidics. Here, we report how the permeability can be massively tuned, even minimized or maximized, by tailoring the potential energy landscape for the diffusing penetrants.

W.K. Kim, M. Kanduč, R. Roa, J. Dzubiella, PRL 122, 108001 (2019)