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Probing Macrophage Activity with Carbon‐Nanotube Sensors
Author(s) -
Heller Iddo,
Smaal Wiljan. T. T.,
Lemay Serge G.,
Dekker Cees
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200900823
Subject(s) - carbon nanotube , nanotechnology , amperometry , nanotube , function (biology) , nanometre , materials science , sensitivity (control systems) , transistor , computer science , simple (philosophy) , electrical engineering , physics , electrode , biology , engineering , electronic engineering , composite material , voltage , electrochemistry , philosophy , quantum mechanics , evolutionary biology , epistemology
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.