DataVXAdvanced MaterialsPaper
journal article·2022-08

A Personalized Electronic Tattoo for Healthcare Realized by On‐the‐Spot Assembly of an Intrinsically Conductive and Durable Liquid‐Metal Composite

Gun‐Hee Lee, Heejin Woo, Chanwoong Yoon, Congqi Yang, Jae‐Young Bae, Wonsik Kim, Do Hoon Lee, Heemin Kang, Seungmin Han, Seung‐Kyun Kang, Seongjun Park, Hyung‐Ryong Kim, Jae‐Woong Jeong, Steve Park

Advanced Materials· Volume 34· Issue 32
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Source abstract

Abstract

Abstract Conventional electronic (e‐) skins are a class of thin‐film electronics mainly fabricated in laboratories or factories, which is incapable of rapid and simple customization for personalized healthcare. Here a new class of e‐tattoos is introduced that can be directly implemented on the skin by facile one‐step coating with various designs at multi‐scale depending on the purpose of the user without a substrate. An e‐tattoo is realized by attaching Pt‐decorated carbon nanotubes on gallium‐based liquid‐metal particles (CMP) to impose intrinsic electrical conductivity and mechanical durability. Tuning the CMP suspension to have low‐zeta potential, excellent wettability, and high‐vapor pressure enables conformal and intimate assembly of particles directly on the skin in 10 s. Low‐cost, ease of preparation, on‐skin compatibility, and multifunctionality of CMP make it highly suitable for e‐tattoos. Demonstrations of electrical muscle stimulators, photothermal patches, motion artifact‐free electrophysiological sensors, and electrochemical biosensors validate the simplicity, versatility, and reliability of the e‐tattoo‐based approach in biomedical engineering.
Source: crossref · Quality: baseline

Research context

NanomaterialsComposites

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Tactile and Sensory Interactions · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea

School of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea

Department of Bio and Brain Engineering Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea

Department of Materials Science and Engineering Seoul National University 1 Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea

Department of Materials Science and Engineering Korea University 145 Anam‐ro, Seongbuk‐gu Seoul 02841 Republic of Korea

KAIST Institute for Health Science and Technology 291 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea

Department of Pharmacology College of Dentistry Jeonbuk National University 567 Baekje‐daero Jeonju 54896 Republic of Korea

Funding

National Research Foundation of Korea

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