Ontology highlight
ABSTRACT:
SUBMITTER: Smeets RM
PROVIDER: S-EPMC2206550 | biostudies-literature | 2008 Jan
REPOSITORIES: biostudies-literature
Smeets R M M RM Keyser U F UF Dekker N H NH Dekker C C
Proceedings of the National Academy of Sciences of the United States of America 20080109 2
We study ionic current fluctuations in solid-state nanopores over a wide frequency range and present a complete description of the noise characteristics. At low frequencies (f approximately < 100 Hz) we observe 1/f-type of noise. We analyze this low-frequency noise at different salt concentrations and find that the noise power remarkably scales linearly with the inverse number of charge carriers, in agreement with Hooge's relation. We find a Hooge parameter alpha = (1.1 +/- 0.1) x 10(-4). In the ...[more]