Ko, Jaehyoung Kim, Soeun Kim, Daeun Lim Taeho Jin, Soyeong Jeong, Youngdo Joo, Yongho Cho, Sangho 2025-05-14T09:00:32Z 2025-05-14T09:00:32Z 2025-05-14 2025-07 1433-7851 https://pubs.kist.re.kr/handle/201004/152427 Electronic devices often demand high reliability and longevity, but they also contribute significantly to electronic waste. Physically transient electronics have thus emerged as a promising alternative in future electronics, particularly in wearable and implantable bioelectronics. In these applications, memristive materials have gained significant attention for their potential to realize neuromorphic systems that offer energy-efficient, hardware-based parallel processing. By integrating memristive capabilities with transient behavior, this study bridges these two cutting-edge fields, creating materials that not only enable advanced computing but also dissociate sustainably. Additionally, we leverage the unique features of soft materials for their tunability, biocompatibility, and cost-effectiveness, which collectively enhance this integration. In this work, we first illustrate molecular engineering strategy on a radical polymer. We then proceed to two-terminal devices therefrom, which exhibit exceptional memory performance of >106 on/off ratio, >104 s state retention, and stability over 250 DC sweep cycles. A flexible, optically transparent, and physically transient crossbar arrays are also developed, which maintain the performance through >3,000 bending cycles and fully dissociate in water at room temperature. This work represents an advancement toward a biorealistic platform with substantial multifunctionality, making it readily translatable to future wearable and implantable neuromorphic devices. English John Wiley & Sons Ltd. A Biodegradable Radical Polymer Enables High­Performance, Physically Transient Organic Memory Article 10.1002/anie.202422826 1 Angewandte Chemie International Edition, v.64, no.27 Angewandte Chemie International Edition 64 27 N scie scopus 001485134600001 Chemistry, Multidisciplinary Chemistry Article RESISTIVE SWITCHING MEMORY GLASS-TRANSITION DEVICES Radical polymers Soft bioelectronics Biodegradable polymers Organic memristors Physically transient electronics