Related Experiment Video
Updated: Jan 21, 2026
10:03
Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
Published on: July 22, 2022
4.9K
Semiliquid Metal Enabled Highly Conductive Wearable Electronics for Smart Fabrics
Rui Guo1, Huimin Wang1,2, Xuyang Sun3
1Department of Biomedical Engineering, School of Medicine , Tsinghua University , Beijing 100084 , PR China.
ACS Applied Materials & Interfaces
|July 26, 2019
Summary
Researchers developed novel smart fabrics using a unique roller printing technique with a semiliquid metal (Cu-EGaIn). This cost-effective method enables large-area fabrication of wearable electronics for personalized health monitoring and treatment.
Area of Science:
- Materials Science
- Textile Engineering
- Wearable Technology
Background:
- Conventional rigid materials for wearable electronics are difficult to integrate into fabrics.
- High-stretchable nonmetal conductive materials often suffer from low electroconductivity.
- Gallium-based liquid metals offer promising properties for flexible electronics and printing technologies.
Purpose of the Study:
- To develop a novel method for fabricating wearable electronics on fabrics.
- To utilize the adhesion properties of semiliquid metal on different surfaces for electronic integration.
- To demonstrate the potential of this technique for creating functional smart fabrics.
Main Methods:
- Roller printing technology was employed using a semiliquid metal mixture (copper-eutectic gallium-indium, Cu-EGaIn).
- The fabrication process leveraged differences in adhesion between Cu-EGaIn and cotton fabrics coated with polyvinyl acetate (PVAC) glue.
- Surface topography and chemical interactions were analyzed to understand adhesion effects.
Main Results:
- The study demonstrated successful fabrication of electromechanically stable conductive lines on fabrics.
- The adhesion of the Cu-EGaIn mixture was found to be dependent on fabric surface topography and PVAC glue interactions.
- Various smart fabric devices were created, including interactive circuits, stretchable LED arrays, and thermal management systems.
Conclusions:
- The proposed roller printing strategy offers an easy-to-operate, low-cost, and scalable method for smart fabric fabrication.
- This approach facilitates the integration of wearable electronics into textiles, paving the way for advanced personalized health-care systems.
- The developed smart fabrics showcase practical applications in health monitoring and thermal management.
Related Concept Videos
01:17Theory of Metallic Conduction
1.7K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
1.7K
03:06Alkali Metals
24.2K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.2K
02:32Bonding in Metals
52.1K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
52.1K
02:58Properties of Transition Metals
29.6K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
29.6K
02:37Metallic Solids
20.5K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.5K
02:51Metal-Ligand Bonds
24.0K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.0K