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
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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
Transparent, mechanically robust, and ultrastable ionogels enabled by hydrogen bonding between elastomers and ionic liquids
TL;DR: In this article, a skin-like sensor fabricated using the transparent hydrophobic ionogel directly not only exhibits outstanding durability (10,000 cycles at 100% strain), but is also capable of operation under harsh environmental conditions, including high vacuum, high/low temperatures, and high humidity.
308
Stretchable piezoelectric energy harvesters and self-powered sensors for wearable and implantable devices
TL;DR: This review presents an overview of the recent developments in new intrinsically stretchable piezoelectric materials and rigid inorganic pieZoelectrics materials with novel stretchable structures for flexible and stretchable PiezoeLECTric sensors and energy harvesters.
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Development of Conductive Hydrogels for Fabricating Flexible Strain Sensors.
Li Gang,Chenglong Li,Guodong Li,Dehai Yu,Zhaoping Song,Huili Wang,Xiaona Liu,Hong Liu,Hong Liu,Wenxia Liu +9 more
TL;DR: In this article, a review summarizes the properties of conductive hydrogels and their application in the fabrication of strain sensors working in different modes, and a brief prospectus for the development of conductively hydrogel-based strain sensors in the future is provided.
305
Ultra-Stretchable and Force-Sensitive Hydrogels Reinforced with Chitosan Microspheres Embedded in Polymer Networks.
TL;DR: An ultra-stretchable and force-sensitive hydrogel with surface self-wrinkling microstructure is demonstrated by in situ synthesizing polyacrylamide and polyaniline in closely packed swollen chitosan microspheres, potentially finding applications for E-skin.
305
Actively Perceiving and Responsive Soft Robots Enabled by Self-Powered, Highly Extensible, and Highly Sensitive Triboelectric Proximity- and Pressure-Sensing Skins
Ying-Chih Lai,Ying-Chih Lai,Jianan Deng,Ruiyuan Liu,Yung‐Chi Hsiao,Steven L. Zhang,Wenbo Peng,Hsing-Mei Wu,Xingfu Wang,Zhong Lin Wang,Zhong Lin Wang +10 more
TL;DR: The perfect integration of the tribo-skins and soft actuators enables soft robots to perform various actively sensing and interactive tasks including actively perceiving their muscle motions, working states, textile's dampness, and even subtle human physiological signals.
302
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Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes
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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.