{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T22:24:45Z","timestamp":1787005485534,"version":"build-2736575974"},"reference-count":48,"publisher":"AIP Publishing","issue":"14","funder":[{"DOI":"10.13039\/501100005046","name":"Natural Science Foundation of Heilongjiang Province","doi-asserted-by":"publisher","award":["LH2023F045"],"award-info":[{"award-number":["LH2023F045"]}],"id":[{"id":"10.13039\/501100005046","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Basic Scientific Research Funds of Heilongjiang Universities Special fund Project of Heilongjiang University","award":["2023-KYYWF-1434"],"award-info":[{"award-number":["2023-KYYWF-1434"]}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,10,14]]},"abstract":"<jats:p>Neuromorphic computing demands energy-efficient and biologically plausible devices to emulate neural dynamics and sensory processing. This study explores the development and application of a chitosan-doped ZnO memristor for neuromorphic computing, focusing on its volatile threshold switching behavior and bio-inspired sensory applications. The device exhibits excellent memristive performance, with a high switching ratio (\u223c105), stable endurance (&amp;gt;104 cycles), and rapid switching speeds (turn-on\/turn-off times of \u223c23\/21 \u00b5s). Symmetric threshold voltages (\u00b12\u00a0V) and low resistance variability highlight its reliability. Integrated into an oscillatory neuron circuit (R\u2013C configuration), the memristor emulates spiking dynamics, demonstrating tunable frequency and energy efficiency (\u223c832 nJ\/spike). Furthermore, the circuit successfully replicates biological motion detection and sound localization by processing spatiotemporal input differences, mimicking direction-selective ganglion cells and medial superior olive neurons. These results validate the memristor\u2019s potential for bio-inspired sensory systems, offering a scalable, energy-efficient platform for neuromorphic computing and artificial perception.<\/jats:p>","DOI":"10.1063\/5.0299959","type":"journal-article","created":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T12:18:06Z","timestamp":1759925886000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":1,"title":["Volatile threshold switching and neural dynamics emulation in a chitosan\u2013ZnO memristor for neuromorphic computing"],"prefix":"10.1063","volume":"163","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9326-4560","authenticated-orcid":false,"given":"Yanmei","family":"Sun","sequence":"first","affiliation":[{"name":"School of Electronic Engineering, Heilongjiang University 1 , Harbin 150080,","place":["China"]},{"name":"Heilongjiang Provincial Key Laboratory of Micro-nano Sensitive Devices and Systems, Heilongjiang University 2 , Harbin 150080,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering, Heilongjiang University 1 , Harbin 150080,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zekai","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering, Heilongjiang University 1 , Harbin 150080,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2025,10,8]]},"reference":[{"key":"2025100808180242400_c1","doi-asserted-by":"publisher","first-page":"184702","DOI":"10.1063\/5.0174857","volume":"159","year":"2023","journal-title":"J.\u00a0Chem. 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