Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong 518055, P. R. China.
State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Beilishi Road, Xicheng District, Beijing 100037, P. R. China.
Nano Lett. 2022 Jun 8;22(11):4482-4490. doi: 10.1021/acs.nanolett.2c01270. Epub 2022 May 17.
Comfort and mechanical stability are vital for epidermal electronics in daily use. deposition of circuitry without the protection of substrates or encapsulation can produce imperceptible, conformal, and permeable epidermal electronics. However, they are easily destroyed by daily wear because the binding force between deposited materials and skin is usually weak. Here, we deposited skin-adhesive liquid metal particles (ALMP) to fabricate epidermal electronics with robust wear resistance. It represents the most wear-resistant deposited epidermal electronic materials. It can withstand ∼1600 cm, 175 g loaded paper tape wearing by a standard abrasion wear tester. Stretchability, conformality, permeability, and thinness of the ALMP coating provide an imperceptible and comfortable wearing experience. Without degradation of electrical property caused by solvent evaporation, the dry ALMP coating possesses natural advantages over gel electrodes. deposited ALMP is an ideal material for fabricating comfortable epidermal electronics.
舒适性和机械稳定性对于日常使用的表皮电子设备至关重要。在没有基底或封装保护的情况下沉积电路，可以产生不可察觉的、贴合的和透气的表皮电子设备。然而，由于沉积材料与皮肤之间的结合力通常较弱，它们很容易被日常磨损破坏。在这里，我们沉积了皮肤粘附性液态金属颗粒 (ALMP)，以制造具有强耐磨性能的表皮电子设备。它代表了最耐磨的沉积表皮电子材料。它可以承受标准耐磨试验机施加的约 1600 次 175 克加载的纸胶带磨损。ALMP 涂层的拉伸性、贴合性、透气性和薄度提供了一种不可察觉的舒适佩戴体验。由于溶剂蒸发不会导致电性能下降，干燥的 ALMP 涂层相对于凝胶电极具有天然优势。沉积的 ALMP 是制造舒适表皮电子设备的理想材料。
