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(A) TEM image of a pnc-Si membrane and (B) scheme of SECM line scan with a nanopipet-supported ITIES tip over the impermeable and nanoporous regions of the membrane. (C) SECM image of the pnc-Si membrane based on the transfer of 10 mM TBA+ in 0.3 M KCl at a 17 nm-radius pipet as silanized and filled with a DCE solution of 0.1 M tetradodecylammonium tetrakis(pentafluorophenyl)borate. Adapted with permission from ref. [57]. Copyright 2012 American Chemical Society.
