期刊
NANO LETTERS
卷 7, 期 6, 页码 1580-1585出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl070462b
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- NHGRI NIH HHS [HG004128] Funding Source: Medline
- NIGMS NIH HHS [GM075893] Funding Source: Medline
- NATIONAL HUMAN GENOME RESEARCH INSTITUTE [R01HG004128] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM075893] Funding Source: NIH RePORTER
Nanopores are extremely sensitive single-molecule sensors. Recently, electron beams have been used to fabricate synthetic nanopores in thin solid-state membranes with subnanometer resolution. Here we report a new class of chemically modified nanopore sensors. We describe two approaches for monolayer coating of nanopores: (1) self-assembly from solution, in which nanopores similar to 10 nm diameter can be reproducibly coated, and (2) self-assembly under voltage-driven electrolyte flow, in which we are able to coat 5 nm nanopores. We present an extensive characterization of coated nanopores, their stability, reactivity, and pH response.
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