scispace - formally typeset
Open AccessJournal ArticleDOI

Gallium‐Based Thin Films for Wearable Human Motion Sensors

TLDR
In this paper, the surface coating and topography of silicone substrates are engineered to enable precisely defined, micrometer-thick liquid metal patterns over large (>10 cm2) surface areas, and high design versatility.
Abstract
Wearable electronic circuits based on the films of gallium and its alloys offer promising implementations in health monitoring and gaming sensing applications. However, the complex rheology of liquid metals makes it challenging to manufacture thin gallium‐based devices with reliable, reproducible, and stable properties over time. Herein, the surface coating and topography of silicone substrates are engineered to enable precisely defined, micrometer‐thick liquid metal patterns over large (>10 cm2) surface areas, and high design versatility. Control over the film microstructure meets manufacturing conditions that enable gallium films with a precise, repeatable, and durable electromechanical performance. The robustness and applicability of this technology in a virtual‐reality scenario is demonstrated by implementing thin, soft, and stretchable gallium‐based sensors to accurately monitor human hand kinematics.

read more

Citations
More filters
Journal ArticleDOI

Wearable and Stretchable Strain Sensors: Materials, Sensing Mechanisms, and Applications

TL;DR: Wearable and stretchable strain sensors have received extensive research interest due to their applications in personalized healthcare, human motion detection, human-machine interfaces, soft robotics, and beyond as mentioned in this paper.
Journal ArticleDOI

Development Trends and Perspectives of Future Sensors and MEMS/NEMS.

TL;DR: The issues about the big data and human-machine realization for human beings’ manipulation, artificial intelligence (AI) and virtual reality (VR) technologies were finally realized using sensor nodes and its wave identification as future trends for various scenarios.
Journal ArticleDOI

An electrically conductive silver–polyacrylamide–alginate hydrogel composite for soft electronics

TL;DR: In this article, a hydrogel composite that consists of micrometre-sized silver flakes suspended in a polyacrylamide-alginate (PAL) hydrogels matrix exhibits a high electrical conductivity of over 350 s cm−1 and a low Young's modulus of less than 10 kPa.
Journal ArticleDOI

Technologies toward next generation human machine interfaces: From machine learning enhanced tactile sensing to neuromorphic sensory systems

TL;DR: This review offers a general knowledge of HMI technologies beginning with tactile sensors and their piezoresistive, capacitive, piezoelectrics, and triboelectric sensing mechanisms.
Journal ArticleDOI

Multilayered electronic transfer tattoo that can enable the crease amplification effect

TL;DR: This electronic tattoo can enable the crease amplification effect, which can amplify the output signal of integrated strain sensors by three times, and can be transferred to different surfaces and form a firm attachment, where no solvent or heat is needed.
References
More filters
Journal ArticleDOI

Stretchable, Skin-Mountable, and Wearable Strain Sensors and Their Potential Applications: A Review

TL;DR: In this article, the authors present recent advancements in the development of flexible and stretchable strain sensors, including skin-mountable and wearable strain sensors for personalized health-monitoring, human motion detection, human-machine interfaces, soft robotics, and so forth.
Journal ArticleDOI

25th Anniversary Article: The Evolution of Electronic Skin (E-Skin): A Brief History, Design Considerations, and Recent Progress

TL;DR: Electronic networks comprised of flexible, stretchable, and robust devices that are compatible with large-area implementation and integrated with multiple functionalities is a testament to the progress in developing an electronic skin akin to human skin.
Journal ArticleDOI

Stretchable and Soft Electronics using Liquid Metals.

TL;DR: The use of liquid metals based on gallium for soft and stretchable electronics is discussed, and these metals can be used actively to form memory devices, sensors, and diodes that are completely built from soft materials.
Journal ArticleDOI

3D Printing of Free Standing Liquid Metal Microstructures

TL;DR: This paper describes a method to direct-write 3D liquid metal microcomponents at room temperature capable of printing wires, arrays of spheres, arches, and interconnects.
Journal ArticleDOI

Bio-Integrated Wearable Systems: A Comprehensive Review

TL;DR: This review summarizes the latest advances in this emerging field of "bio-integrated" technologies in a comprehensive manner that connects fundamental developments in chemistry, material science, and engineering with sensing technologies that have the potential for widespread deployment and societal benefit in human health care.
Related Papers (5)