biostudies-literatureLi CNatural Science Foundation of Beijing MunicipalityFundamental Research Funds for the Central UniversityChina Postdoctoral Science FoundationNational Natural Science Foundation of ChinaBeijing Natural Science FoundationPostdoctoral Fellowship Program of CPSFe2406706https://www.ebi.ac.uk/biostudies/studies/S-EPMC11515898biostudies-literatureUnknown11(40)Electronic tattoo, capable of imperceivably acquiring bio-electrical signals from the body, is broadly applied in healthcare and human-machine interface. Tattoo substrate, the foundation of electronic tattoo, is expected to be mechanically mimetic to skin, adhesive, and breathable, and yet remains highly challenging to achieve. Herein, the study mimics human skin and design a breathable, adhesive, and mechanically skin-like super tattoo substrate based on an ultra-thin film (≈2 µm). Similar to skin, super tattoo demonstrates strain-adaptive stiffening properties with high tear energy (5.4 kJ·m^-2) and toughness (1.3 MJ·m^-3). Superior to skin, it exhibits high adhesion, ionic conductivity, and permeability. A variety of conductive electrodes can be processed on it, showAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Breathable, Adhesive, and Biomimetic Skin-Like Super Tattoo.PMC1151589852403080220720062244095GZC2024011722275022JQ23002310400209523T2188101Z2400252024M750222Zhang WLi CQi JTan ZZhang YLiu NSong DWang XWang YZhao ZShi XZhao YfalseBreathable, Adhesive, and Biomimetic Skin-Like Super Tattoo.Electronic tattoo, capable of imperceivably acquiring bio-electrical signals from the body, is broadly applied in healthcare and human-machine interface. Tattoo substrate, the foundation of electronic tattoo, is expected to be mechanically mimetic to skin, adhesive, and breathable, and yet remains highly challenging to achieve. Herein, the study mimics human skin and design a breathable, adhesive, and mechanically skin-like super tattoo substrate based on an ultra-thin film (≈2 µm). Similar to skin, super tattoo demonstrates strain-adaptive stiffening properties with high tear energy (5.4 kJ·m^-2) and toughness (1.3 MJ·m^-3). Superior to skin, it exhibits high adhesion, ionic conductivity, and permeability. A variety of conductive electrodes can be processed on it, show2024-01-01T00:00:00Z2024 Oct2026-07-15T17:44:19.262Z2026-07-07T03:10:52.996ZS-EPMC115158983920668510.1002/advs.202406706