Eom, Chan-Hwi Han, Won Bae Han, Sungkeun Choi, So Jeong Choi, Ikkyo Kim, Jeonguk Cho, Hyewon Kim, Li-Hyun Naganaboina, Venkata Ramesh Ko, Gwan-Jin Jang, Tae-Min Hwang, Suk-Won 2025-07-18T02:30:29Z 2025-07-18T02:30:29Z 2025-07-18 2025-09 https://pubs.kist.re.kr/handle/201004/152756 The lifespan of the transient electronic system can be determined in advance (i.e., predefined) or controlled via on-demand and programmable approaches using a diverse range of principles. However, in most cases, dissolution or disappearance requires an aqueous solution and is only possible for the entire system, not for specific or targeted components. Here, a soft, stretchable, thermally expandable system is introduced for precise, localized, on-demand deactivation or destruction of electronic systems. The incorporation of thermal expansion particles into a polymer matrix produces soft, resilient composites that generate substantial thermo-mechanical forces at a predefined temperature, enabling the direct collapse of electronic devices. Integration with multichannel microfluidics and wireless systems creates a vanishing, self-destructive optoelectronic system and bio-safe drug delivery vehicle for frequency-based selective release, demonstrating the broad potential of this approach in the fields of defense/security and biomedical devices as well as other envisioned areas. English Wiley-VCH Verlag Stretchable and Biodegradable Thermally Expandable Composites with Microfluidics for On-Demand and Programmable Destruction of Electronics Article 10.1002/advs.202505487 1 Advanced Science, v.12, no.36 Advanced Science 12 36 Y scie scopus 001519366900001 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article TRANSIENT DISSOLUTION biodegradable destruction system drug-delivery thermally expandable composite transient electronics