[TuP3F] F. Low dimensional materials and structures

2:00 PM - 4:00 PM JST(5:00 AM - 7:00 AM UTC)

[TuP3F-08 LN] Nanofluid based on MXene two-dimensional membrane for biomimetic visual perception

〇Ying Liao¹ (1. Southern Univ. of Sci. and Tech. (China))

Inspired by retinal horizontal cells, which regulate visual signal transmission through light-evoked hyperpolarization or depolarization responses via precise modulation of transmembrane ion transport, we designed and fabricated a MXene-based nanofluidic device to mimic this light-responsive ion regulation. Upon illumination, the device generates significant and reproducible photocurrents that depend on ion concentration. Importantly, light-induced polarity changes of the photocurrent successfully simulate the depolarization and hyperpolarization processes of horizontal cells. Moreover, the migration behavior of K⁺ and Cl^- in the device closely resembles the ion redistribution observed in retinal horizontal cells. This MXene nanofluidic platform not only offers a new strategy for constructing artificial photoreceptive systems but also lays a foundation for developing neuromorphic iontronics and biomimetic vision sensors.