Ko, Gwan-Jin Han, Soo Deok Kim, Jeong-Ki Zhu, Jia Han, Won Bae Chung, Jinmook Yang, Seung Min Cheng, Huanyu Kim, Dong-Hwee Kang, Chong-Yun Hwang, Suk-Won 2024-01-19T16:30:43Z 2024-01-19T16:30:43Z 2021-09-02 2020-11 1884-4049 https://pubs.kist.re.kr/handle/201004/117956 A novel transient electronics technology that is capable of completely dissolving or decomposing in certain conditions after a period of operation offers unprecedented opportunities for medical implants, environmental sensors, and other applications. Here, we describe a biodegradable, flexible silicon- based electronic system that detects NO species with a record-breaking sensitivity of 136 Rs (5 ppm, NO2) and 100-fold selectivity for NO species over other substances with a fast response (similar to 30 s) and recovery (similar to 60 s). The exceptional features primarily depend on not only materials, dimensions, and design layouts but also temperatures and electrical operations. Large-scale sensor arrays in a mechanically pliable configuration exhibit negligible deterioration in performance under various modes of applied loads, consistent with mechanics modeling. In vitro evaluations demonstrate the capability and stability of integrated NOx devices in severe wet environments for biomedical applications. English NATURE RESEARCH Biodegradable, flexible silicon nanomembrane-based NOx gas sensor system with record-high performance for transient environmental monitors and medical implants Article 10.1038/s41427-020-00253-0 1 NPG ASIA MATERIALS, v.12, no.1 NPG ASIA MATERIALS 12 1 N scie scopus 000591297700001 2-s2.0-85095120802 Materials Science, Multidisciplinary Materials Science Article NITRIC-OXIDE ELECTRONICS HEALTH OPTOELECTRONICS NANOSTRUCTURES DESIGN