Method to sense single-particle motion using a tapered-gap microcapacitor

Ruti Kapon, Ilan Sagiv, Joseph Shappir, Noa Mazorski, Guy Ziv, Dan Shahar, Ziv Reich*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

An approach to study the real-time dynamics of single molecules using capacitance measurements was described. It was shown that the method is based on a nonparallel-plate microcapacitor, which has a tapered-gap geometry. It was found that the detection scheme also enables the distinction between particles of different dielectric constants and the exertion of dielectrophoretic forces on the particles. The results show that the approach provides a means for studying various aspects of single-particle dynamics at high resolution, in real time, and under conditions compatible with biological systems.

Original languageEnglish
Pages (from-to)4277-4279
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number21
DOIs
StatePublished - 24 May 2004

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