Han, Won Bae Ko, Gwan-Jin Yang, Seung Min Kang, Heeseok Lee, Joong Hoon Shin, Jeong-Woong Jang, Tae-Min Han, Sungkeun Kim, Dong-Je Lim, Jun Hyeon Rajaram, Kaveti Bandodkar, Amay Jairaj Hwang, Suk-Won 2024-01-19T09:02:34Z 2024-01-19T09:02:34Z 2023-08-11 2023-08 1936-0851 https://pubs.kist.re.kr/handle/201004/113431 Although biodegradable, transientelectronic devicesmust dissolveor decompose via environmental factors, an effective waterproofingor encapsulation system is essential for reliable, durable operationfor a desired period of time. Existing protection approaches use multipleor alternate layers of electrically inactive organic/inorganic elementscombined with polymers; however, their high mechanical stiffness isnot suitable for soft, time-dynamic biological tissues/skins/organs.Here, we introduce a stretchable, bioresorbable encapsulant usingnanoparticle-incorporated elastomeric composites with modificationsof surface morphology. Nature-inspired micropatterns reduce the diffusionarea for water molecules, and embedded nanoparticles impede waterpermeation, which synergistically enhances the water-barrier performance.Empirical and theoretical evaluations validate the encapsulation mechanismsunder strains. Demonstration of a soft, degradable shield with anoptical component under a biological solution highlights the potentialapplicability of the proposed encapsulation strategy. English American Chemical Society Micropatterned Elastomeric Composites for Encapsulation of Transient Electronics Article 10.1021/acsnano.3c03063 1 ACS Nano, v.17, no.15, pp.14822 - 14830 ACS Nano 17 15 14822 14830 N scie scopus 001037676500001 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article INTERFACES biodegradable elastomer polymer composite stretchable encapsulation biodegradableelectronics transient electronics