standard steel needle electrodes (ADInstruments)
Structured Review

Standard Steel Needle Electrodes, supplied by ADInstruments, used in various techniques. Bioz Stars score: 96/100, based on 214 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 96 stars, based on 214 article reviews
Images
1) Product Images from "Flexible and Transparent Metal Oxide/Metal Grid Hybrid Interfaces for Electrophysiology and Optogenetics"
Article Title: Flexible and Transparent Metal Oxide/Metal Grid Hybrid Interfaces for Electrophysiology and Optogenetics
Journal: Advanced materials technologies
doi: 10.1002/admt.202000322
Figure Legend Snippet: (a) Schematic illustration of flexible and transparent ITO/metal grid hybrid microelectrodes and interconnects (left), ITO/metal grid (right top), ITO island/metal grid (right middle) and metal grid (right bottom). SEM images of (b) ITO/Au grid and (c) ITO island/Au grid, respectively. Scale bar, 50 μm. (d) Transmission spectra of Au grid, ITO/Au grid, and ITO, respectively. (e) Sheet resistance of Au grid, ITO island/Au grid, ITO/Au grid, and ITO, respectively. (f) Variation of sheet resistance versus bending cycle for Au grid, ITO island/Au grid, and ITO/Au grid, respectively. The bending radius is 5 mm. Photos of an operating blue LED connected by (g) ITO/Au grid hybrid electrode after 10000 bends, (h) pristine ITO electrode, and (i) ITO electrode after 2 bends. The bending radius is 5 mm.
Techniques Used: Transmission Assay
Figure Legend Snippet: (a) Impedance plots of Au grid, ITO island/Au grid, and ITO/Au grid microelectrodes. The microelectrode size is 320 × 320 μm2. (b) Average impedance values (5 samples each) of Au grid, ITO island/Au grid, ITO/Au grid, and ITO microelectrodes at 1 kHz, respectively. (c) Impedance plots of Cu grid, ITO island/Cu grid, and ITO/Cu grid microelectrodes. (d) Impedance versus electrode size for ITO/Au grid hybrid microelectrodes. (e) Phase plot of the ITO/Au grid hybrid microelectrodes in (a). (f) Variation of impedance versus bending cycle for ITO/Au grid hybrid microelectrodes. The bending radius is 5 mm. Z0 is the impedance before bending whereas Z represents the impedance at a specific bending cycle.
Techniques Used:
Figure Legend Snippet: (a) Schematic illustration of the Langendorff-perfusion setup used for electrophysiological recording and optogenetic pacing of ChR2-expressing mouse hearts in this work. The heart is perfused with Tyrode’s solution in a custom-designed chamber at 37 °C. Pump #1 perfuses the heart, and Pump #2 circulates solution throughout the chamber. An ITO/Au grid hybrid microelectrode is laminated onto the right ventricle of the heart and connected to a bio amplifier that interfaces with a computer where signals are recorded. (b) (Left) Far-field ECG and electrogram recordings of normal sinus rhythm from a reference electrode and an ITO/Au grid hybrid microelectrode with the blue LED turned off, respectively. (Right) Representative P waves and QRS complexes recorded by the reference electrode and ITO/Au grid hybrid microelectrode. (c) Electrogram recording from the ITO/Au grid hybrid microelectrode during 2nd degree AV block with and without simultaneous optogenetic pacing with a blue LED pulsing at 10 Hz (lower blue curve). The electrogram signals during optogenetic pacing are divided by 20 to present similar scale to that of the signals acquired during intrinsic rhythms. (d) Representative QRS complexes recorded by the ITO/Au grid hybrid microelectrode in response to blue LED stimulation at 2, 5, 10, 15, 20 ms, respectively. Representative electrogram recordings of heart rhythm from the ITO/Au grid hybrid microelectrode with the blue LED pulsing at (e) 12.5 Hz and (f) 15 Hz, respectively.
Techniques Used: Expressing, Blocking Assay