Highly stretchable electroluminescent skin for optical signaling and tactile sensing
Chris Larson,Bryan Peele,Shuo Li,Sanlin S. Robinson,Massimo Totaro,Lucia Beccai,Barbara Mazzolai,Robert F. Shepherd +7 more
1.2K
TL;DR: An electroluminescent material is presented that is capable of large uniaxial stretching and surface area changes while actively emitting light and is combined in a stretchable electronic material suitable for soft robotics.
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Abstract: Cephalopods such as octopuses have a combination of a stretchable skin and color-tuning organs to control both posture and color for visual communication and disguise. We present an electroluminescent material that is capable of large uniaxial stretching and surface area changes while actively emitting light. Layers of transparent hydrogel electrodes sandwich a ZnS phosphor-doped dielectric elastomer layer, creating thin rubber sheets that change illuminance and capacitance under deformation. Arrays of individually controllable pixels in thin rubber sheets were fabricated using replica molding and were subjected to stretching, folding, and rolling to demonstrate their use as stretchable displays. These sheets were then integrated into the skin of a soft robot, providing it with dynamic coloration and sensory feedback from external and internal stimuli.
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Citations
Surface-agnostic highly stretchable and bendable conductive MXene multilayers
Hyosung An,Touseef Habib,Smit A. Shah,Huili Gao,Miladin Radovic,Micah J. Green,Jodie L. Lutkenhaus +6 more
TL;DR: This work reports on conductive and conformal MXene multilayer coatings that can undergo large-scale mechanical deformation while maintaining a conductivity as high as 2000 S/m and expects that this discovery will allow for the implementation of MXene-based coatings onto mechanically deformable objects.
278
A neuro-inspired artificial peripheral nervous system for scalable electronic skins.
Wang Wei Lee,Yu Jun Tan,Haicheng Yao,Si Li,Hian Hian See,Matthew Hon,Kian Ann Ng,Betty Xiong,John S. Ho,Benjamin C. K. Tee +9 more
- 17 Jul 2019
TL;DR: The Asynchronously Coded Electronic Skin (ACES) is introduced—a neuromimetic architecture that enables simultaneous transmission of thermotactile information while maintaining exceptionally low readout latencies, even with array sizes beyond 10,000 sensors.
274
Bioinspired Electronics for Artificial Sensory Systems
TL;DR: Recent progress in bioinspired electronic sensors shows that the five traditional senses are successfully mimicked using novel electronic components and the performance regarding sensitivity, selectivity, and accuracy have improved to levels that outperform human sensory organs.
271
Fatigue of hydrogels
TL;DR: In this article, a review of the chemistry of fatigue in hydrogels is presented, focusing on the chemistries of bonds and topologies of networks, and the use of energy release rate for samples with precut cracks.
269
Stretchable surfaces with programmable 3D texture morphing for synthetic camouflaging skins
TL;DR: Inspired by cephalopod muscular morphology, synthetic tissue groupings were developed that allowed programmable transformation of two-dimensional (2D) stretchable surfaces into target 3D shapes.
267
References
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Highly stretchable and tough hydrogels
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4.6K
Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes
TL;DR: In this paper, a comprehensive study of transparent and conductive silver nanowire (Ag NW) electrodes, including a scalable fabrication process, morphologies, and optical, mechanical adhesion, and flexibility properties, and various routes to improve the performance.
Multigait soft robot
Robert F. Shepherd,Filip Ilievski,Wonjae Choi,Stephen A. Morin,Adam A. Stokes,Aaron D. Mazzeo,Xin Chen,Michael Wang,George M. Whitesides +8 more
TL;DR: This manuscript describes a unique class of locomotive robot, composed exclusively of soft materials (elastomeric polymers), which is inspired by animals that do not have hard internal skeletons, and illustrates an advantage of soft robotics.