Probing macrophage activity with carbon-nanotube sensors

Iddo Heller*, Wiljan T.T. Small, Serge G. Lemay, Cees Dekker

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)


Sensors made from single carbon nanotubes have great potential to function as nanometer-scale electrical probes for single-cell studies (see image). A nanotube is used both as an amperometric and a transistor sensor and signals are correlated with the activity of a macrophage cell located on the device. In addition, the stability and sensitivity issues are highlighted and ways to enhance nanotube sensors are demonstrated.

Original languageEnglish
Pages (from-to)2528-2532
Number of pages5
Issue number22
Publication statusPublished - 16 Nov 2009
Externally publishedYes


  • Biosensors
  • Carbon nanotubes
  • Cells
  • Electrochemistry
  • Field-effect transistors


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