인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Robust and reliable piezo-ionic materials that are both crack resistant and self-healable like biological skin hold great promise for applications inflexible electronics and intelligent systems with prolonged service lives. However, such a combination of high toughness, superior crack resistance, autonomous self-healing and effective control of ion dynamics is rarely seen in artificial iontronic skin because these features are seemingly incompatible in materials design. Here, we resolve this perennial mismatch through a molecularly engineered strategy of implanting carboxyl-functionalized groups into the dynamic hard domain structure of synthesized poly(urethane-urea). This design provides an ultra-high fracture energy of 211.27 kJ m<sup>-2</sup> that is over 123.54 times that of tough human skin, while maintaining skin-like stretchability, elasticity, and autonomous self-healing with a 96.40% healing efficiency. Moreover, the carboxyl anion group allows the dynamic confinement of ionic fluids though electrostatic interaction, thereby ensuring a remarkable pressure sensitivity of 7.03 kPa<sup>-1</sup> for the tactile sensors. As such, we successfully demonstrated the enormous potential ability of this skin-like piezo-ionic sensor for biomedical monitoring and robotic item identification, which indicates promising future uses in flexible electronics and human-machine interactions.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.