Pulsed biosensing

Dietmar Fink, Gerardo Muñoz Hernández, Jiri Vacik, Lital Alfonta

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

As swift heavy ion tracks in insulators exhibit a multitude of interesting electronic properties, they are promising base structures for future non-semiconductor-based electronic concepts. Especially when embedding high fluency ion irradiated thin polymer foils into electrolytes, the tracks show some similarity to neural systems insofar as they emit electrical current preferentially in the form of current spikes upon application of a low-frequency alternating voltage. The interaction of many such spike emitters may lead to phase-locked spike synchronization, so that pulsed currents as large as ∼ 0.1 μA or so emerge. If in contact with biomatter, the current pulses are determined by their ambient. This novel biosensing concept is demonstrated for glucose detection.

Original languageEnglish
Article number5585660
Pages (from-to)1084-1087
Number of pages4
JournalIEEE Sensors Journal
Volume11
Issue number4
DOIs
StatePublished - 25 Feb 2011

Keywords

  • Biosensors
  • current spikes
  • glucose
  • ion tracks
  • neural networks
  • polymers

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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