In Situ Nanopore Fabrication and Single-Molecule Sensing with Microscale Liquid Contacts.

Arcadia, Christopher E; Reyes, Carlos C; Rosenstein, Jacob K · ACS Nano · 2017

basic_science · Level V

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Abstract

In this article, we introduce a flexible technique for high-throughput solid-state nanopore analysis of single biomolecules. By confining the electrolyte to a micron-scale liquid meniscus at the tip of a glass micropipette, we enable automation and reuse of a single solid-state membrane chip for measurements with hundreds of distinct nanopores per day. In addition to overcoming important experimental bottlenecks, the microscale liquid contact dramatically reduces device capacitance, which is a key limiting factor to the speed and fidelity of solid-state nanopore sensor recordings.