Easily made single-walled carbon nanotube surface microelectrodes for neuronal applications

Implantable Electrodes with Carbon Nanotube Coatings

“…Ben Jacob et al (2008) used planar CNTs-MEAs to record from and stimulate neuronal cell lines. APs generated by ganglion cells were recorded by SWCNT-MEAs in greater proportion when compared to geometrically identical Pt-MEAs (Gabriel et al, 2009). CNT probes developed to interface with neurons both intracellularly and extracellularly were comparable in performance to traditionally used glass electrodes with silver/silver chloride wires .…”

A cone-shaped 3D carbon nanotube probe for neural recording

“…The impedance per unit area was lower and the capacitance per unit area was higher for the OT-CNT probe compared to those of the CNT microelectrodes (Wang et al, 2006) and SWCNT surface microelectrodes (Gabriel et al, 2009). It could be attributed to that more CNT surface area was accessible in aqueous solution since the 3D CNT probe exhibited the more spreading CNTs.…”

“…Instead, it relates to the characteristics of CNT electrode and the amplifier of instrument. The root-mean-square of the noise voltage was about 1.9 for the OT-CNT probe, which was lower than that of SWCNT surface microelectrodes (Gabriel et al, 2009). A lower value of rootmean-square of noise voltage for the OT-CNT probe well explained the lower noises to be added on the signals recorded by OT-CNT probes.…”

“…The peak-to-peak voltage of the OT-CNT probe was smaller than SWCNT surface microelectrodes reported (Gabriel et al, 2009). As the recorded peak-to-peak voltage is dependent on the distance between the neuron and electrodes, further precise control on the distance is required for sensitivity comparison.…”

Prospects for Neuroprosthetics: Flexible Microelectrode Arrays with Polymer Conductors

“…Ptblack plating (Rajaraman et al, 2011) J. Held O. Paul et al 64 S,R Pt/TiW on < 10 µm high, µm Ø Ag or sub-µm Ø Si (electroporation) microneedles on Si insulated by Si 3 N 4 (Held et al, 2008;Held, Gaspar, et al, 2010 (Gabriel et al, 2009;Bongard et al, 2010) A. Hai J. Shappir M. Spira et al…”