Fully Degradable Memristors and Humidity Sensors Based on a Tyrosine-Rich Peptide,ACS Applied Electronic Materials

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Fully Degradable Memristors and Humidity Sensors Based on a Tyrosine-Rich Peptide
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2021-07-20 , DOI: 10.1021/acsaelm.1c00357
Min-Kyu Song ₁ , Seok Daniel Namgung ₂ , Young-Woong Song ₁ , Taehoon Sung ₁ , Wonjae Ji ₁ , Yoon-Sik Lee ₃ , Ki Tae Nam ₂ , Jang-Yeon Kwon ₁

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Transient electronics, a form of electronic devices that disappear physically after a certain operation time, have attracted considerable interest in the area of bioelectronics. Due to their biodegradability and biocompatibility, bioderived materials have been applied to various kinds of transient electronics. This work presents fully degradable memristors and humidity sensors based on a tyrosine-rich peptide. The memristors exhibit a high on/off ratio (>10⁶), stable endurance (∼10⁴ s), and analog switching behavior. The humidity sensors show high sensitivity, in which the current changes by 3 orders of magnitude in the relative humidity range of 10–90%. By means of a rapid response and recovery time, the sensors can be used to monitor human respiration in real time. These devices are rapidly dissolvable under physiological conditions within 1 min. These results open up the field of biocompatible multifunctional nanoelectronics toward the development of bio-implantable processors and sensors.

中文翻译：

基于富含酪氨酸的肽的完全可降解忆阻器和湿度传感器

瞬态电子学是一种在一定操作时间后物理消失的电子设备形式，在生物电子学领域引起了相当大的兴趣。由于其生物降解性和生物相容性，生物衍生材料已被应用于各种瞬态电子产品。这项工作提出了基于富含酪氨酸的肽的完全可降解的忆阻器和湿度传感器。忆阻器表现出高开/关比（>10 ⁶）、稳定的耐久性（~ 10 ⁴s) 和模拟开关行为。湿度传感器显示出高灵敏度，其中电流在 10-90% 的相对湿度范围内变化 3 个数量级。通过快速响应和恢复时间，传感器可用于实时监测人体呼吸。这些装置在生理条件下可在 1 分钟内迅速溶解。这些结果为开发生物可植入处理器和传感器开辟了生物相容性多功能纳米电子学领域。

更新日期：2021-08-24

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