Wu, SongmeiWildhaber, FabienBertsch, ArnaudBrugger, JürgenRenaud, Philippe2013-05-312013-05-312013-05-31201310.1063/1.4807781https://infoscience.epfl.ch/handle/20.500.14299/92511WOS:000320620400065We developed Al2O3/W heterogeneous nanopore arrays for field effect modulated nanofluidic diodes. They are fabricated by transferring self-organized nanopores of anodic aluminium oxide into a W thin film. The nanopores are ∼20 nm in diameter and 400 nm in length. After mild oxidation, approximately 10 nm WO3 grows on the surface of W, forming a conformal and dense dielectric layer. It allows the application of an electrical field through the surrounding W electrode to modulate the ionic transport across the entire membrane. Our experimental findings have potential applications in high throughput controlled delivery and electrostatic sorting of biomolecules.nanofluidic diodenanoporemembraneField effect modulated nanofluidic diode membrane based on Al2O3/W heterogeneous nanopore arraystext::journal::journal article::research article