An autonomously electrically self-healing liquid metal–elastomer composite for robust soft-matter robotics and electronics

@article{Markvicka2018AnAE,
  title={An autonomously electrically self-healing liquid metal–elastomer composite for robust soft-matter robotics and electronics},
  author={Eric J. Markvicka and Michael D. Bartlett and Xiaonan Huang and Carmel Majidi},
  journal={Nature Materials},
  year={2018},
  volume={17},
  pages={618-624}
}
Large-area stretchable electronics are critical for progress in wearable computing, soft robotics and inflatable structures. Recent efforts have focused on engineering electronics from soft materials—elastomers, polyelectrolyte gels and liquid metal. While these materials enable elastic compliance and deformability, they are vulnerable to tearing, puncture and other mechanical damage modes that cause electrical failure. Here, we introduce a material architecture for soft and highly deformable… 
Self-healing liquid metal composite for reconfigurable and recyclable soft electronics
Soft electronics and robotics are in increasing demand for diverse applications. However, soft devices typically lack rigid enclosures which can increase their susceptibility to damage and lead to
Robust and Multifunctional Liquid-Metal Embedded Elastomers for Ultrastretchable Electronics: a Short Review
Soft electronics are a promising and revolutionary alternative for traditional electronics when safe physical interaction between machines and the human body is required. Among various materials
A Fast Autonomous Healing Magnetic Elastomer for Instantly Recoverable, Modularly Programmable, and Thermorecyclable Soft Robots
Intrinsically self‐healing stretchable polymers have been intensively explored for soft robotic applications due to their mechanical compliance and damage resilience. However, their prevalent use in
A multifunctional shape-morphing elastomer with liquid metal inclusions
TLDR
This work introduces a soft, multifunctional composite capable of a unique combination of sensing, mechanically robust electronic connectivity, and active shape morphing through a compliant and deformable liquid crystal elastomer matrix that can achieve macroscopic shape change through a liquid crystal phase transition.
Directed Assembly of Liquid Metal–Elastomer Conductors for Stretchable and Self‐Healing Electronics
Growing interest in soft robotics, stretchable electronics, and electronic skins has created demand for soft, compliant, and stretchable electrodes and interconnects. Here, dielectrophoresis (DEP) is
A Liquid‐Metal–Elastomer Nanocomposite for Stretchable Dielectric Materials
TLDR
The role of droplet size is examined and it is found that embedding an elastomer with a polydisperse distribution of nanoscale LM inclusions can enhance its electrical permittivity without significantly degrading its elastic compliance, stretchability, or dielectric breakdown strength.
Self-healing materials for soft-matter machines and electronics
The emergence of soft machines and electronics creates new opportunities to engineer robotic systems that are mechanically compliant, deformable, and safe for physical interaction with the human
Stretchable, self-healing, transient macromolecular elastomeric gel for wearable electronics
TLDR
A stretchable macromolecular elastomeric gel with the unique abilities of not only self-healing but also transient properties at room temperature is reported, suggesting its potential for flexible electronic devices.
SOFT MATERIALS FOR UNCONVENTIONAL ADHESIVES AND ELECTRONICS
Multifunctional soft materials create intriguing new opportunities to enhance performance and enable innovative designs. I will present two examples of this approach, one that utilizes material
Recyclable, weldable, mechanically durable, and programmable liquid metal-elastomer composites
Liquid metal (LM)-based elastomers have received growing interest for wide ranges of applications spanning from soft robotics to flexible electronics. However, the fabrication of multifunctional
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 54 REFERENCES
Self-healing soft pneumatic robots
TLDR
This research proposes to construct soft robotics entirely out of self-healing elastomers, on the basis of healing capacities found in nature, and shows how realistic macroscopic damage could be healed entirely using a mild heat treatment.
An electrically and mechanically self-healing composite with pressure- and flexion-sensitive properties for electronic skin applications.
TLDR
This work describes a composite material composed of a supramolecular organic polymer with embedded nickel nanostructured microparticles, which shows mechanical and electrical self-healing properties at ambient conditions and shows that the material is pressure- and flexion-sensitive, and therefore suitable for electronic skin applications.
Mechanically Stretchable and Electrically Insulating Thermal Elastomer Composite by Liquid Alloy Droplet Embedment
TLDR
A mechanically stretchable and electrically insulating thermal elastomer composite is demonstrated, which can be easily processed for device fabrication and is expected useful to enhance thermal response or efficiency of soft and stretchable thermal devices or systems.
Stretchable and Soft Electronics using Liquid Metals
  • M. Dickey
  • Materials Science
    Advanced materials
  • 2017
TLDR
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.
High thermal conductivity in soft elastomers with elongated liquid metal inclusions
TLDR
An electrically insulating composite that exhibits an unprecedented combination of metal-like thermal conductivity, an elastic compliance similar to soft biological tissue, and the capability to undergo extreme deformations is engineering by engineering an elastomer composite embedded with elongated inclusions of liquid metal that function as thermally conductive pathways.
Intrinsically stretchable and healable semiconducting polymer for organic transistors
TLDR
A design concept for stretchable semiconducting polymers, which involves introducing chemical moieties to promote dynamic non-covalent crosslinking of the conjugated polymers that is able to undergo an energy dissipation mechanism through breakage of bonds when strain is applied, while retaining high charge transport abilities is presented.
Printable Superelastic Conductors with Extreme Stretchability and Robust Cycling Endurance Enabled by Liquid‐Metal Particles
TLDR
It is demonstrated that by electrically anchoring conductive fillers with eutectic gallium indium particles (EGaInPs), significant improvement in stretchability and durability can be achieved in stretchable conductors.
A highly stretchable, transparent, and conductive polymer
TLDR
A highly stretchable conducting polymer, realized with a range of enhancers that serve a dual function: (i) they change morphology and (ii) they act as conductivity-enhancing dopants in poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS).
Three-dimensional nanonetworks for giant stretchability in dielectrics and conductors.
TLDR
Large-area, three-dimensional nano-architectures that achieve large-area levels of stretchability that extend beyond intrinsic limits of bulk materials in materials that offer both insulating and conductive properties are reported.
Water‐Enabled Healing of Conducting Polymer Films
TLDR
This work reveals a new property of PEDOT:PSS and enables its immediate use in flexible and biocompatible electronics, such as electronic skin and bioimplanted electronics, placing conducting polymers on the front line for healing applications in electronics.
...
1
2
3
4
5
...