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Four probe architecture using high spatial resolution single multi-walled carbon nanotube electrodes for electrophysiology and bioimpedance monitoring of whole tissue
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10.1063/1.3292216
/content/aip/journal/apl/96/9/10.1063/1.3292216
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/9/10.1063/1.3292216
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Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the microfabricated structure of sMWNT electrode; (b) SEM micrograph of MWNT tip with CNT length of (scale bar equals to ); (c) setup for measurement of impedance spectra of parallel sMWNT electrodes; (d) (filled circle) and (filled square) at 1 kHz; (e) and (f) angle (Z) for two sMWNT electrodes in parallel (filled square) and single sMWNT electrode (filled circle) (Inset-circuit model for showing equivalent double layer capacitance , faradaic charge transfer resistance and constant phase element (CPE).

Image of FIG. 2.
FIG. 2.

Comparison of for sensors utilizing individual and parallel sMWNT electrode configurations (Insets-Left: Placement (crosses) of sMWNT electrodes on sartorius muscle; Middle: Schematic of extracellular stimulation experiments using a sensor with a bipolar configuration with individual sMWNT electrodes; Right: with parallel sMWNT electrodes).

Image of FIG. 3.
FIG. 3.

(a) Representative field potential recorded using individual sMWNT electrodes (Insets-Left: Placement of sMWNT electrode (crosses) and pin electrode (filled circle) on sartorius muscle; Right: Schematic of extracellular recording experiment); (b) Representative field potential recorded using parallel pairs of sMWNT electrodes (Inset-Schematic of extracellular recording experiment).

Image of FIG. 4.
FIG. 4.

Sartorius muscle impedance spectra of (a) magnitude (Inset-Placement (crosses) of sMWNT electrodes on sartorious muscle) and (b) phase angle (Inset-Schematic of bioimpedance measurement setup) before (filled diamond) and after (filled square) desiccation at ; Representative (filled square) and (filled circle) at 1 kHz recorded (c) before and (d) after dessication at .

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/content/aip/journal/apl/96/9/10.1063/1.3292216
2010-03-03
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Four probe architecture using high spatial resolution single multi-walled carbon nanotube electrodes for electrophysiology and bioimpedance monitoring of whole tissue
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/9/10.1063/1.3292216
10.1063/1.3292216
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