Liquid Metal–Elastomer Soft Composites with Independently Controllable and Highly Tunable Droplet Size and Volume Loading DOI
Ravi Tutika, Steven Kmiec, A. Haque

et al.

ACS Applied Materials & Interfaces, Journal Year: 2019, Volume and Issue: 11(19), P. 17873 - 17883

Published: April 22, 2019

Soft composites are critical for soft and flexible materials in energy harvesting, actuators, multifunctional devices. One emerging approach to create is through the incorporation of liquid metal (LM) droplets such as eutectic gallium indium (EGaIn) highly deformable elastomers. The microstructure systems their performance; however, current lack control particle size at diverse volume loadings. Here, we present a fabrication metal-elastomer with independently controllable tunable droplet (100 nm ≤ D 80 μm) loading (0 ϕ 80%). This achieved combination shear mixing sonication concentrated LM/elastomer emulsions subsequent dilution homogenization tune LM loading. These characterized utilizing dielectric spectroscopy supported by analytical modeling, which shows high relative permittivity 60 (16× unfilled elastomer) composite = 80%, low tan δ 0.02, significant dependence on minor size. Temperature response stability determined using temperature frequency sweeps DSC. results demonstrate wide phase (crystallizing <-85 °C < 20 μm). Additionally, all electrically insulating across (0.1 Hz-10 MHz) (-70 100 °C) ranges even up 80%. We highlight benefit creating all-soft-matter stretchable capacitive sensors sensitivity. further integrated into wearable sensing glove where identify different objects during grasping motions. work enables programmable robotics electronics flexibility functional critical.

Language: Английский

Low temperature photothermal therapy: Advances and perspectives DOI
Ke Yang,

Shaojing Zhao,

Baoling Li

et al.

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 454, P. 214330 - 214330

Published: Dec. 2, 2021

Language: Английский

Citations

202

Gallium Liquid Metal: The Devil's Elixir DOI Creative Commons
Shi‐Yang Tang, Christopher E. Tabor, Kourosh Kalantar‐zadeh

et al.

Annual Review of Materials Research, Journal Year: 2021, Volume and Issue: 51(1), P. 381 - 408

Published: May 12, 2021

Gallium is a metal that literally melts in your hand. It has low toxicity, near-zero vapor pressure, and viscosity similar to water. Despite possessing surface tension larger than any other liquid (near room temperature), gallium can form nonspherical shapes due the thin, solid native oxide skin forms rapidly oxygen. These properties enable new ways pattern metals (e.g., injection printing) create stretchable soft devices with an unmatched combination of mechanical electrical properties. The be transferred substrates manipulated electrochemically lower interfacial near zero. reactivity drive wide range reactions. state makes it easy break into particles for making colloids composites have unusual deformable nature filler. This review summarizes truly unique exciting metals.

Language: Английский

Citations

196

Skin bioelectronics towards long-term, continuous health monitoring DOI
Yan Wang, Hossam Haick,

Shuyang Guo

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(9), P. 3759 - 3793

Published: Jan. 1, 2022

Skin bioelectronics are considered as an ideal platform for personalised healthcare because of their unique characteristics, such thinness, light weight, good biocompatibility, excellent mechanical robustness, and great skin conformability. Recent advances in skin-interfaced have promoted various applications precision medicine. Particularly, long-term, continuous health monitoring offer powerful analysis a broad spectrum statuses, providing route to early disease diagnosis treatment. In this review, we discuss (1) representative sensing devices, (2) material structure selection, device properties, wireless technologies towards monitoring, (3) applications: acquisition electrophysiological, biophysical, biochemical signals, comprehensive (4) rational guidelines the design future monitoring. Long-term, advanced will open unprecedented opportunities timely prevention, screening, diagnosis, treatment, demonstrating promise revolutionise traditional medical practices.

Language: Английский

Citations

188

Ga‐Based Liquid Metal Micro/Nanoparticles: Recent Advances and Applications DOI
Hyunsun Song, Taekyung Kim, Seohyun Kang

et al.

Small, Journal Year: 2019, Volume and Issue: 16(12)

Published: Oct. 3, 2019

Abstract Liquid metals are emerging as fluidic inorganic materials in various research fields. Micro‐ and nanoparticles of Ga its alloys have received particular attention the last decade due to their non toxicity accessibility ambient conditions well interesting chemical, physical, mechanical, electrical properties. Unique features such a nature self‐passivating oxide skin make Ga‐based liquid metal particles (LMPs) distinguishable from conventional context synthesis applications. Here, recent advances bottom‐up top‐down synthetic methods LMPs, physicochemical properties, applications summarized. Finally, current status LMPs is highlighted perspectives on future directions also provided.

Language: Английский

Citations

186

Liquid Metal–Based Soft Microfluidics DOI
Lifei Zhu, Ben Wang, Stephan Handschuh‐Wang

et al.

Small, Journal Year: 2019, Volume and Issue: 16(9)

Published: Oct. 1, 2019

Abstract Motivated by the increasing demand of wearable and soft electronics, liquid metal (LM)‐based microfluidics has been subjected to tremendous development in past decade, especially robotics, related fields, due unique advantages LMs that combines conductivity deformability all‐in‐one. can be integrated as core component into microfluidic systems form either droplets/marbles or composites embedded polymer materials with isotropic anisotropic distribution. The LM are found have broad applications deformable antennas, diodes, biomedical sensing chips, transient circuits, mechanically adaptive materials, etc. Herein, recent progress LM‐based their potential summarized. current challenges toward industrial future research orientation this field also summarized discussed.

Language: Английский

Citations

178

Recent Advances in Nanostrategies Capable of Overcoming Biological Barriers for Tumor Management DOI
Da Huo, Xiqun Jiang, Yong Hu

et al.

Advanced Materials, Journal Year: 2019, Volume and Issue: 32(27)

Published: Oct. 30, 2019

Engineered nanomaterials have been extensively employed as therapeutics for tumor management. Meanwhile, the complex niche along with multiple barriers at cellular level collectively hinders action of nanomedicines. Here, advanced strategies that hold promise overcoming numerous biological facing nanomedicines are summarized. Starting from entry, methods promote tissue penetration nanomedicine and address hypoxia issue also highlighted. Then, emphasis is given to significance both physical barriers, such membrane-associated efflux pumps, features, resistance apoptosis. The pros cons an individual approach presented. In addition, associated technical problems discussed, importance balancing therapeutic merits additional cost sophisticated designs.

Language: Английский

Citations

177

A Versatile Approach for Direct Patterning of Liquid Metal Using Magnetic Field DOI
Biao Ma, Chengtao Xu, Junjie Chi

et al.

Advanced Functional Materials, Journal Year: 2019, Volume and Issue: 29(28)

Published: March 28, 2019

Abstract Patterning of liquid metal (LM) is usually an integral step toward its practical applications. However, the high surface tension along with oxide makes direct patterning LM very challenging. Existing techniques are designed for limited types planar substrates, which require multiple‐step operation, delicate molds and masks, expensive equipment. In this work, a simple, versatile, equipment‐free approach on various substrates using magnetic field reported. To achieve this, microparticles dispersed into by stirring. When moving applied to droplet, aggregated deform droplet continuous line. addition, also applicable supermetallophobic since significantly enhances contact between substrate. Moreover, remote manipulation allows nonplanar surfaces, even in narrow near closed space, impossible existing techniques. A few applications demonstrated proposed technique flexible electronics wearable sensors.

Language: Английский

Citations

173

Liquid Metal‐Based Soft Electronics for Wearable Healthcare DOI
Young‐Geun Park, Gayeon Lee, Jiuk Jang

et al.

Advanced Healthcare Materials, Journal Year: 2021, Volume and Issue: 10(17)

Published: March 16, 2021

Wearable healthcare devices have garnered substantial interest for the realization of personal health management by monitoring physiological parameters individuals. Attaining integrity between and biological interfaces is one greatest challenges to achieving high-quality body information in dynamic conditions. Liquid metals, which exist liquid phase at room temperatures, are advanced intensively as conductors deformable because their excellent stretchability self-healing ability. The unique surface chemistry metals allows development various sensors wearable form. Also, biocompatibility verified through numerous biomedical applications, holds immense potential uses on inside a living body. Here, recent progress metal-based electronic with respect featured properties processing technologies discussed. Representative examples applications such biosensors, neural interfaces, soft interconnection reviewed. current prospects further also discussed, future directions advances latest research explored.

Language: Английский

Citations

170

Intrinsically stretchable electronics with ultrahigh deformability to monitor dynamically moving organs DOI Creative Commons
Shaolei Wang, Yuanyuan Nie, Hangyu Zhu

et al.

Science Advances, Journal Year: 2022, Volume and Issue: 8(13)

Published: March 30, 2022

Intrinsically stretchable electronics represent an attractive platform for next-generation implantable devices by reducing the mechanical mismatch and immune responses with biological tissues. Despite extensive efforts, soft electronic often exhibit obvious trade-off between performances deformability because of limitations commonly used compliant materials. Here, we introduce a scalable approach to create intrinsically featuring deployment liquid metal components ultrahigh stretchability up 400% tensile strain excellent durability against repetitive deformations. The device architecture further shows long-term stability under physiological conditions, conformal attachments internal organs, low interfacial impedance. Successful electrophysiological mapping on rapidly beating hearts demonstrates potential widespread applications in health monitoring, disease diagnosis, medical therapies.

Language: Английский

Citations

166

Digitally-embroidered liquid metal electronic textiles for wearable wireless systems DOI Creative Commons
Rongzhou Lin, Han‐Joon Kim, Sippanat Achavananthadith

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: April 21, 2022

Electronic textiles capable of sensing, powering, and communication can be used to non-intrusively monitor human health during daily life. However, achieving these functionalities with clothing is challenging because limitations in the electronic performance, flexibility robustness underlying materials, which must endure repeated mechanical, thermal chemical stresses use. Here, we demonstrate textile systems near-field powering created by digital embroidery liquid metal fibers. Owing unique electrical mechanical properties fibers, conform body surfaces establish robust wireless connectivity nearby wearable or implantable devices, even strenuous exercise. By transferring optimized electromagnetic patterns onto this way, a washable shirt that wirelessly powered smartphone continuously axillary temperature without interfering activities.

Language: Английский

Citations

164