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Here, we report a flexible and transparent ReRAM device based on a BNNT rod\/MWCNT\u2013ZnO quantum dot (QD) nanocomposite and evaluate its electrical operation under static bending, stability after low\u2010temperature exposure, and biocompatibility. The fabricated Al\/nanocomposite\/ITO\/PET device exhibited approximately 63% optical transmittance in the visible region and maintained resistive switching under a 3\u00a0cm static bending radius. It demonstrated nonvolatile memory characteristics, including an ON\/OFF current ratio over 10\n                    <jats:sup>3<\/jats:sup>\n                    , electrical endurance exceeding 20\u00a0000 cycles, and retention beyond 75\u00a0000 s. The memory performance remained stable at \u221230\u00b0C, indicating environmental robustness. Charge transport analysis revealed that switching behavior is governed by space\u2010charge\u2010limited current (SCLC) conduction at low voltages and Fowler\u2013Nordheim tunneling at high electric fields, while the BNNT layer acts as a charge\u2010blocking layer to enhance retention stability. For biocompatibility, cytotoxicity testing showed cell viability satisfied ISO 10993\u20135, while 8\u2010week subcutaneous implantation revealed a transient acute inflammation that attenuated over time without necrosis. Despite non\u2010encapsulated conditions, explanted devices retained distinguishable resistive states, demonstrating in vivo functional stability. Overall, this nanocomposite\u2010based ReRAM shows potential as a memory platform for wearable and implantable bioelectronics.\n                  <\/jats:p>","DOI":"10.1002\/smll.75269","type":"journal-article","created":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T12:32:46Z","timestamp":1786969966000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bio\u2010Compatible Flexible Memristive Devices Enabled by BNNT\/MWCNT\u2013ZnO Quantum Dot Hybrid Percolation Networks"],"prefix":"10.1002","author":[{"given":"Jaeho","family":"Shim","sequence":"first","affiliation":[{"name":"Institute of Advanced Composite Materials Korea Institute of Science and Technology  Wanju\u2010gun Jeollabuk\u2010do Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-1977-478X","authenticated-orcid":false,"given":"Dong 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