Cometto, F.Frank, K.Stel, B.Arisnabarreta, N.Kern, K.Lingenfelder, M.2017-11-082017-11-082017-11-08201710.1039/c7cc06597chttps://infoscience.epfl.ch/handle/20.500.14299/141957WOS:000413156900010A Scanning Tunneling Microscope (STM) is used to induce a reversible transition between different polymorphs in a binary supramolecular network at the liquid/solid interface. The transition is driven externally by switching the polarity of the sample by positive or negative sample bias potentials. We demonstrate that by mixing bias-sensitive and nonsensitive molecules, we gain access to a variety of binary porous structures that can be prepared and reliably actuated for each relative concentration.text::journal::journal article::research article