基于Mg/MgO阈值转变忆阻器的柔性生物可降解人 工伤害感受器

As an important receptor located in the skin, a nociceptor is capable of detecting noxious stimuli and sending warning signals to central nervous system avoid tissue damage, thus inspiring development artificial nociceptors for electronic receptors. Recently, memristors have attracted increasing attention developing due simplicity nociceptive system. However, realization with biocompatibility biodegradability single memristive device remains challenge. Herein, fully biocompatible biodegradable threshold switching (TS) memristor consisting W/MgO/Mg/W configuration was proposed as nociceptor. The showed unidirectional TS characteristics stable electrical performance under bending conditions. Critical behaviors, including threshold, relaxation, no adaptation, allodynia, hyperalgesia, were successfully demonstrated Meanwhile, optoelectronic built by integration photoresistor memristor. Importantly, devices transferred on polyvinyl acetate substrate physically transient electronics could completely dissolve deionized water, simulating decomposition skin necrosis. This study provides novel route toward promising applications implantable wearable secure bio-integrated systems.