Aquatic Skin Enabled by Multi‐Modality Iontronic Sensing (Adv. Funct. Mater. 48/2022)

Cheng, Yu; Guo, Chenhui; Li, Sen; Ka, Deng; Tang, Jie; Luo, Qian; Chang, Yu; Pan, Tingrui

doi:10.1002/adfm.202270274

Cited by 12 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A comparison between our proposed e‐skin and the recently reported capacitive e‐skin provided in Figure 2l demonstrates excellent performance in terms of sensitivity and LOD performance. [ 38–48 ] Table S1 (Supporting Information) presents more detailed performance comparisons, including sensitivity, response/recovery time, LOD, and compression stability. Response and recovery times are other essential parameters of the e‐skin, and have been extensively used to evaluate its dynamic response.…”

Section: Resultsmentioning

confidence: 99%

Micropyramid Array Bimodal Electronic Skin for Intelligent Material and Surface Shape Perception Based on Capacitive Sensing

Niu,

Wei,

et al. 2023

Advanced Science

View full text Add to dashboard Cite

Developing electronic skins (e‐skins) that are comparable to or even beyond human tactile perception holds significant importance in advancing the process of intellectualization. In this context, a machine‐learning‐motivated micropyramid array bimodal (MAB) e‐skin based on capacitive sensing is reported, which enables spatial mapping applications based on bimodal sensing (proximity and pressure) implemented via fringing and iontronic effects, such as contactless measurement of 3D objects and contact recognition of Braille letters. Benefiting from the iontronic effect and single‐micropyramid structure, the MAB e‐skin in pressure mode yields impressive features: a maximum sensitivity of 655.3 kPa−1 (below 0.5 kPa), a linear sensitivity of 327.9 kPa−1 (0.5–15 kPa), and an ultralow limit of detection of 0.2 Pa. With the assistance of multilayer perceptron and convolutional neural network, the MAB e‐skin can accurately perceive 6 materials and 10 surface shapes based on the training and learning using the collected datasets from proximity and pressure modes, thus allowing it to achieve the precise perception of different objects within one proximity‐pressure cycle. The development of this MAB e‐skin opens a new avenue for robotic skin and the expansion of advanced applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Micropyramid Array Bimodal Electronic Skin for Intelligent Material and Surface Shape Perception Based on Capacitive Sensing

Niu,

Wei,

et al. 2023

Advanced Science

View full text Add to dashboard Cite

show abstract

“…[47,48] The charge separation is much smaller than that of conventional capacitive sensors (mostly 10-200 μm), thus signal enhancement of several orders of magnitude can be obtained. [49,50] This type of device generally exhibits ultrahigh unit area capacitance immediately, which is on the order of several μF cm −2 in a sub-MHz spectrum, more than 1000 times greater than that of the conventional parallel-plate capacitive sensors, ranging from tens to hundreds of pF cm −2 . Figure S6, Supporting Information, shows the responses of the conventional and iontronic capacitive devices when the external objects continuously approach and move.…”

Section: Mechanism Of Pressure Sensing and Electrochromic Propertiesmentioning

confidence: 99%

Incorporating Wireless Strategies to Wearable Devices Enabled by a Photocurable Hydrogel for Monitoring Pressure Information

Guo

Yin

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

Advances in emerging technologies for wireless collection and the timely analysis of various information captured by wearable devices are of growing interest. Herein, a crosslinked ionic hydrogel prepared by a facile photocuring process is proposed, which allows wearable devices to be further incorporated into two wireless integrated systems for pressure monitoring applications. The device exhibits a simplified structure by effectively sharing functional layers, rather than conventional two separate combinations, offering the salient performance of iontronic sensing and electrochromic properties to simultaneously quantify and visualize pressure. The developed smart patch system is demonstrated to monitor physiological signals in real-time utilizing the user interface of remote portable equipment with the Bluetooth protocol and on-site electrochromic displays. Moreover, a passive wireless system based on the magnetic coupling effect is designed, which can operate free from the battery and simultaneously acquire multiple pressure information. It is envisioned that the strategies would hold enormous potential for flexible electronics, versatile sensing platforms, and wireless on-body networks.

show abstract

“…To address this issue, Pan et al. [ 39 ] reported a packaging‐free aquatic electronic skin using iontronic sensing principle, the aquatic skin can be directly performed in an underwater environment with inherent hydraulic balance, thereby offering a reliable solution to mitigate the influences of hydraulic pressure. Therefore, the preparation of waterproof nanocomposites that incorporate conductive nanofillers into the PDMS substrate, along with the packaging‐free sensor structural design can serve as a highly effective strategy for achieving underwater force sensing.…”

Section: Introductionmentioning

confidence: 99%

Waterproof and Flexible Aquatic Tactile Sensor with Interlocked Ripple Structures for Broad Range Force Sensing

Zhang,

Xiang,

Mei

et al. 2023

Adv Materials Technologies

View full text Add to dashboard Cite

Underwater perception of a broad range of force holds great importance in aquatic explorative activities, while flexible tactile sensors face technical challenges to realize. This paper presents a novel flexible aquatic tactile sensor based on waterproof graphene (GR)/carbon nanotube (CNT)/Polydimethylsiloxane (PDMS) composites. The prepared GR/CNT/PDMS composites possess excellent hydrophobic and electromechanical properties with a water contact angle over 134° and an ultrahigh gauge factor of 2296, making them an ideal piezoresistive sensing material for underwater broad‐range force sensing. The proposed tactile sensor has 3 × 3 sensing units and uses dual interlocked water‐ripple structures to improve its sensitivity and force detection range. The fabricated tactile sensor is characterized by two distinct sensitivities: a high sensitivity of 0.0338 kPa−1 at 0.062–150 kPa and a low sensitivity of 0.00357 kPa−1 at 150–450 kPa. Further, the sensor exhibited excellent resistance response, fast dynamic recovery, and both mechanical and electrical stability in aquatic environments. Then, the aquatic tactile sensor is worn on the palm of the human hand to detect the distribution and variation of contact forces when grasping objects with different shapes and hardness, demonstrating the potential underwater applications of the developed aquatic tactile sensor for broad‐range force sensing.

show abstract

Aquatic Skin Enabled by Multi‐Modality Iontronic Sensing (Adv. Funct. Mater. 48/2022)

Cited by 12 publications

References 0 publications

Micropyramid Array Bimodal Electronic Skin for Intelligent Material and Surface Shape Perception Based on Capacitive Sensing

Micropyramid Array Bimodal Electronic Skin for Intelligent Material and Surface Shape Perception Based on Capacitive Sensing

Incorporating Wireless Strategies to Wearable Devices Enabled by a Photocurable Hydrogel for Monitoring Pressure Information

Waterproof and Flexible Aquatic Tactile Sensor with Interlocked Ripple Structures for Broad Range Force Sensing

Contact Info

Product

Resources

About