Towards artificial mechanosensing

Abstract

Towards artificial mechanosensingCarbon nanotubes with single-digit diameter embedded in a solid artificial membrane show pressure-sensitive ionic conductance that is similar to the mechanically activated currents of biological ion channels.

Ultra-mechanosensitive ion transport through bioinspired high-density elastomeric nanochannels

“…However, these channels are fabricated on membranes with rigid modulus, which present limited deformation ability towards external pressure. All of those mechanosensory channels exhibit a nanoampere-level response to the pressure, mainly contributed by the pressure-induced streaming mobilities enhancement [12][13][14][15] . And the intrinsic mechanism of mechanosensitive ion transport determined by nanochannel deformation has not been explored.…”

Stress induced delamination of suspended MoS2 in aqueous environments

“…It was shown, that surface-related phenomena such as material damage, delamination or nanobubbles 28 can exhibit nonlinear current signals, 20,21,23 analogous to those reported as ionic coulomb blockade. 29 Thus, even though MoS 2 was proven stable at working pressure of up to 3.5 bar, 20,30 further investigation of the application of both electrical fields and pressure is crucial to uncover adhesion-related artifacts, help understand the 2D-nanofluidic system and bring insights into designing an artifact-free 2D-material platforms.…”

Modeling the role played by nanoslit lengths on conductance changes into micro nano microfluidics devices

“…The physics of mass transport in solid nanoscale systems is a fast-growing area of research whether it is fundamental or applied. [1], [2], [3], [4], [5], [6], [7], [8], [9], [10] For instance, several applications include the synthesis of nanostructured powders or electrodes as porous materials which offer a large specific area for energy storage [11], [12], [13], but also for the fabrication of nanofluidic devices as a selective and permeable filters to mimic ion channels in biology [14], [15] or as electropreconcentrator devices [16], [17], [18] for sample processing and analysis [19], [20]. For all the mentioned applications, mass transport at nanoscale is affected by nanochannel shape and surface properties.…”