Switchable imbibition in nanoporous gold

1.7.2014 Study on Switchable imbibition in nanoporous gold has been published in Nature Communications and featured as Nanotechnology Spotlight by nanowerk (in English and German) and as article "Kapillarwirkung auf Knopfdruck" by Spektrum der Wissenschaft (in German). The press release by Hamburg University of Technology can be found here.

The capillarity-driven uptake of liquids by porous solids can be experienced in daily life, e.g., when a sponge imbibes water. Here, we demonstrate that this process can be switched on and off reversibly when nanoporous gold takes the role of the sponge and an electric potential is used to control the surface tension.