Figure 1.
Nanopore fabrication and electrical properties. a. Sealed glass ball (100 μm in radius) enclosing a nanocavity on the pipette terminal. b. External etching from bottom-up with electrical monitoring. c. Perforation on nanocavity terminal and nanopore formation. d. 20 min recording of nanopore current (+200 mV, 1 M NaCl).