ArticleSensors (Basel, Switzerland)2023
A Hydrogel-Based Electronic Skin for Touch Detection Using Electrical Impedance Tomography.
Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Gel-Based Self-Powered Nanogenerators: Materials, Mechanisms, and Emerging Opportunities.Gels (Basel, Switzerland) · 2025Review
- Toward Intelligent Materials with the Promise of Self-Healing Hydrogels in Flexible Devices.Polymers · 2025Review
- Electrical Impedance Tomography-Based Electronic Skin for Multi-Touch Tactile Sensing Using Hydrogel Material and FISTA Algorithm.Sensors (Basel, Switzerland) · 2024Article
- A Coupled Double-Layer Electrical Impedance Tomography-Based Sensing Skin for Pressure and Leak Detection.Sensors (Basel, Switzerland) · 2024Article
- Advancements in Soft Robotics: A Comprehensive Review on Actuation Methods, Materials, and Applications.Polymers · 2024Review
- The Investigation of Bio-impedance Analysis at a Wrist Phantom with Two Pulsatile Arteries.Cardiovascular engineering and technology · 2023Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent advancement in wearable and robot-assisted healthcare technology gives rise to the demand for smart interfaces that allow more efficient human-machine interaction. In this paper, a hydrogel-based soft sensor for subtle touch detection is proposed. Adopting the working principle of a biomedical imaging technology known as electrical impedance tomography (EIT), the sensor produces images that display the electrical conductivity distribution of its sensitive region to enable touch detection. The sensor was made from a natural gelatin hydrogel whose electrical conductivity is considerably less than that of human skin. The low conductivity of the sensor enabled a touch-detection mechanism based on a novel short-circuiting approach, which resulted in the reconstructed images being predominantly affected by the electrical contact between the sensor and fingertips, rather than the conventionally used piezoresistive response of the sensing material. The experimental results indicated that the proposed sensor was promising for detecting subtle contacts without the necessity of exerting a noticeable force on the sensor.
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Registered trials
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