石墨烯电子纹身传感器,ACS Nano

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石墨烯电子纹身传感器
ACS Nano ( IF 15.8 ) Pub Date : 2017-07-27 00:00:00 , DOI: 10.1021/acsnano.7b02182
Shideh Kabiri Ameri , Rebecca Ho , Hongwoo Jang , Li Tao ₁ , Youhua Wang , Liu Wang , David M. Schnyer , Deji Akinwande , Nanshu Lu

Affiliation

像纹身一样的表皮传感器由于其薄而柔软而成为真正可穿戴电子产品的新兴类别。尽管它们大多数是基于金属薄膜，硅膜或基于纳米颗粒的可印刷油墨，但我们报告了由石墨烯制成的亚微米厚，多峰电子纹身传感器。石墨烯电子纹身（GET）被设计为丝状蛇纹石，并通过具有成本效益和时间效益的“湿转移，干图案”方法进行制造。它的总厚度为463±30 nm，光学透明度为〜85％，可拉伸性超过40％。GET可以像临时纹身一样直接层压在人类皮肤上，并且可以通过皮肤完全符合皮肤表面的微观形态只是范德华力。GET的开放式网状结构使其透气且其刚度可忽略不计。裸露的GET可以保持附着在皮肤上数小时而不会断裂或分层。通过液体绷带覆盖，GET可以在皮肤上保持功能长达数天。作为干电极，GET-皮肤界面阻抗与医学上使用的银/氯化银（Ag / AgCl）凝胶电极相当，同时具有出色的舒适性，移动性和可靠性。GET已成功应用于测量心电图（ECG），肌电图（EMG），脑电图（EEG），皮肤温度和皮肤水合作用。

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Graphene Electronic Tattoo Sensors

Tattoo-like epidermal sensors are an emerging class of truly wearable electronics, owing to their thinness and softness. While most of them are based on thin metal films, a silicon membrane, or nanoparticle-based printable inks, we report sub-micrometer thick, multimodal electronic tattoo sensors that are made of graphene. The graphene electronic tattoo (GET) is designed as filamentary serpentines and fabricated by a cost- and time-effective “wet transfer, dry patterning” method. It has a total thickness of 463 ± 30 nm, an optical transparency of ∼85%, and a stretchability of more than 40%. The GET can be directly laminated on human skin just like a temporary tattoo and can fully conform to the microscopic morphology of the surface of skin via just van der Waals forces. The open-mesh structure of the GET makes it breathable and its stiffness negligible. A bare GET is able to stay attached to skin for several hours without fracture or delamination. With liquid bandage coverage, a GET may stay functional on the skin for up to several days. As a dry electrode, GET–skin interface impedance is on par with medically used silver/silver-chloride (Ag/AgCl) gel electrodes, while offering superior comfort, mobility, and reliability. GET has been successfully applied to measure electrocardiogram (ECG), electromyogram (EMG), electroencephalogram (EEG), skin temperature, and skin hydration.

更新日期：2017-07-28

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