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Scindapsus Aureus Resistive Random-Access Memory with Synaptic Plasticity and Sound Localization Function
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Scindapsus Aureus Resistive Random-Access Memory with Synaptic Plasticity and Sound Localization Function
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Journal Article
Scindapsus Aureus Resistive Random-Access Memory with Synaptic Plasticity and Sound Localization Function
2025
Overview
This work presents a memristive device based on a composite of Scindapsus aureus (SA) and gold nanoparticles (Au NPs), which exhibits excellent resistive switching characteristics and supports multiple forms of synaptic plasticity such as paired-pulse facilitation (PPF), spike-rate-dependent plasticity (SRDP), and spike-timing-dependent plasticity (STDP). The device demonstrates reliable retention, reproducibility, and switching stability. The SA:Au NP composite originates from a natural plant source and possesses green, biodegradable, and biocompatible features, highlighting its potential as a sustainable bio-memristive material for neuromorphic systems. Furthermore, the device exhibits sensitivity to the time interval between paired input pulses, simulating the neural response to interaural time differences (ITDs) in the auditory system. Although not a conventional acoustic sensor, its Δt-responsiveness based on synaptic behavior reveals promising potential in neuromorphic auditory perception and perceptual computing applications. This study provides a foundational synaptic unit for future artificial hearing systems capable of spatial sound localization.
Publisher
MDPI AG,MDPI
