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Conical Nanopore Membranes: Controlling the Nanopore Shape
Author(s) -
Harrell C. Chad,
Siwy Zuzanna S.,
Martin Charles R.
Publication year - 2006
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200500196
Subject(s) - nanopore , conical surface , materials science , membrane , etching (microfabrication) , nanotechnology , transmembrane protein , composite material , chemistry , layer (electronics) , biochemistry , receptor
Conically shaped nanopores prepared by anisotropic etching of heavy‐ion‐tracked polymer films are an especially promising type of abiotic nanopore for biosensing applications. We have discovered that the cone angle of conical nanopores (see Figure) prepared by the track‐etch method can be systematically varied by varying the transmembrane potential difference applied during pore etching.