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Intracellular recording nanoscale electrode devices provide the advantages of a high spatial resolution and high sensitivity. However, the length of nanowire/nanotube‐based nanoelectrodes is currently limited to <10 μm long due to fabrication issues for high‐aspect‐ratio nanoelectrodes. The concept reported here can address the technological limitations by fabricating >100 μm long nanoscale‐tipped...
The length of nanowire/nanotube‐based nanoelectrodes is currently limited to <10 μm due to fabrication issues for high‐aspect‐ratio nanoelectrodes. On page 2846, T. Kawano and co‐workers demonstrate how a fabricated microneedle‐based nanoscale‐tipped electrode, over 100‐μm long, can penetrate into muscle cells and observe the resting potentials from cells.
This paper reports a new lithography method using thin-film edge electrodes (TEEs) to collectively transfer nanopatterns by generating oxide on the substrate surface via an electrochemical reaction (ECR). Nanometric thick TEEs are formed on the sidewall of insulating stamping structures. ECR-based oxide patterns have the same width and shape as the TEEs because ECR is induced only between the conductor...
Here we report integration of nanoscale tipped 120-μm-long vertical microprobe electrode (NTE) array and intracellular recordings using a gastrocnemius muscle of a mouse. The tip diameter and curvature radius of the NTE was < 200 nm, respectively, and the controlled height of the exposed tip section was 4 μm. The impedance of the fabricated NTE exhibited 3.1 MΩ at 1 kHz in saline, with the output/input...
We demonstrated a multisite wide-area pinpoint depth transfers of nanoparticles into a soft material via three-dimensional (3D) nanotip probe arrays, for powerful applications including local drug delivery and DNA transfer into biological samples (e.g., cells/neurons and tissues). An array of electrically biased nanoscale tips of the probes enabled multisite traps of polystyrene nanoparticles. Here...
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