AC and DC electrical imaging of biosamples at the nanoscale by Atomic Force Microscopy

I. Casuso, L. Fumagalli, G. Ferrari, M. Sampietro, E. Padrós, J. Samitier, G. Gomila

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We present a new tool and measurement protocol based on Atomic Force Microscopy for the AC and DC electrical characterization of biological samples at the nanoscale. The new developments allow performing a variety of electrical measurements (DC conductivity, A C small signal impedance) both in spectroscopic mode (i.e. in a single point) as well as in imaging mode (i.e. by providing a map of the electrical properties with nanometric spatial resolution) with minimum sample damage. Successful test measurements have been carried out on Purple Membrane. © 2007 IOP Publishing Ltd.
Original languageEnglish
Article number037
Pages (from-to)185-189
JournalJournal of Physics: Conference Series
Volume61
Issue number1
DOIs
Publication statusPublished - 1 Apr 2007

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