▎ 摘　　要

Laser-scribed graphene (LSG), with programmable patterns and superior electronic properties, has attracted considerable attention and has been widely investigated for various wearable electronics. However, its characteristics such as easy peeling and weak stretchability have prevented it from further industrial applications. Herein, this work has demonstrated a durable, biodegradable, skin-conformable LSG-based strain sensor by using a transfer technology and the dehydration characteristic of a commercial make-up accessory (nose film colloid), which has been declared as a pollution-free and skin-friendly flexible substrate. The sensor exhibits relatively high sensitivity of a gauge factor over 1200, large stretch range of more than 70% and stable piezoresistance responses after 5000 cyclic tests. It has an admirable durability that can maintain a stable resistance after rubbing and scratching of sandpaper, and a biodegradability that can be totally dissolved within a few minutes. A series of human computer interaction applications, such as music glove, have been presented to prove the availability and sweat permeability of the sensor. The environmentally friendly properties of the sensor and the printable fabrication process reveal the possibility of the large-scale preparation of the flexible strain sensor.