Mouser Left Banner
Mouser Left Banner
Mouser Left Banner
Mouser Left Banner
Mouser Left Banner
Mouser Left Banner
More

    Bioelectrical Sensors can Sense Electrical Signals in the Body

    Bioelectrical sensors on the skin can be used to measure electrical signals in the body, like heart activity and muscle contraction. While that provides valuable information for clinicians, current bioelectrical sensor technology can be ineffective, uncomfortable, expensive, and difficult to manufacture.

    Researchers from the University of Utah and Gyeongsang National University in South Korea have developed a bioelectrical sensor that is convenient and low-cost.

    The sensor measures electromyography (EMG) signals that are generated in muscles when they contract. EMG signals are useful for studying muscle fatigue and recovery, and they have the potential to inform diagnosis and treatment of neuromuscular diseases.

    “The signal we measure is a voltage over a time,” said author Huanan Zhang. “Every time your finger moves, the potential of the body, of the muscle, changes. So, we are able to detect that difference in potential.”

    The biosensor is directly integrated onto a piece of clothing. That has advantages beyond convenience and comfort—soft clothing means better contact with the skin and a better signal.

    Initially, the researchers printed silver paste directly onto fabric. Silver is conductive, making it a good material for detecting electrical signals. However, it is also somewhat toxic, so prolonged exposure can lead to skin irritation.

    To harness the beneficial properties of silver while solving the problems it poses, the team deposited a layer of gold nanoparticles on top of the silver. The gold completely encapsulated the silver particles, preventing them from touching the skin.

    The result was a detector that was both conductive and non-irritating to the skin. The amounts of gold and silver are small enough that it remains inexpensive as well.

    The scientists tested the biosensor’s performance by placing it on the bicep and fingers and monitoring the detected signal as those muscles progressed through various exercises.

    Because the sensor is part of the fabric and is designed to be used over long periods of time, it needs to withstand washing. The team retested sensor performance after multiple washings and found its performance remained high.

    “This work not only designs a wearable device, which has the convenience factor, but it also has great performance and is biocompatible,” said Zhang.

    The team believes that using this printing technique on textiles could revolutionize future bioelectrical sensors.

    ELE Times Research Desk
    ELE Times Research Deskhttps://www.eletimes.com/
    ELE Times provides extensive global coverage of Electronics, Technology and the Market. In addition to providing in-depth articles, ELE Times attracts the industry’s largest, qualified and highly engaged audiences, who appreciate our timely, relevant content and popular formats. ELE Times helps you build experience, drive traffic, communicate your contributions to the right audience, generate leads and market your products favourably.

    Technology Articles

    Popular Posts

    Latest News

    Must Read

    ELE Times Top 10