To overcome these challenges, Changhyun Pang, Changsoon Choi and colleagues worked to develop a low-cost, graphene-based sensor with a yarn-like substrate that uses octopus-like suckers to adhere to the skin..From there, they added a coating of a graphene and poly (dimethylsiloxane) (PDMS) film to form a conductive path from the fabric to the skin.

Typical yarns and threads are also vulnerable to wet environments.According to the study published in the journal &imitation animal fur39;ACS Applied Materials & Interfaces,' finding the best way to stick the # wearable electronic device to the body has been a challenge. Thus, the choice of substrate, the material that the sensing compounds rest upon, is crucial. Adhesives can lose their grip underwater, and in dry environments, they can be so sticky that they can be painful when peeled off. Finally, they etched tiny, octopus-like patterns on the film.Woven yarn is a popular substrate, but it sometimes doesn't fully contact the skin, especially if that skin is hairy. Researchers developed an additional feature in wearable electronics that are an emerging trend in health sensor technology for their ability to monitor a variety of human activities, from heart rate to step count. Therefore, the team of researchers developed a graphene-based adhesive biosensor inspired by octopus "suckers."For a wearable sensor to be truly effective, it must be flexible and adhere fully to both wet and dry skin but still remain comfortable for the user.The sensor could detect a wide range of pressures and motions in both wet and dry environments.

For a wearable sensor to be truly effective, it must be flexible and adhere fully to both wet and dry skin.The researchers coated an elastic polyurethane and polyester fabric with graphene oxide and soaked in L-ascorbic acid to aid in conductivity while still retaining its strength and stretch. The device also could monitor an array of human activities, including electrocardiogram signals, pulse and speech patterns, demonstrating its potential use in medical applications, the researchers said. Woven yarn is a popular substrate, but it sometimes doesn't fully contact the skin, especially if that skin is hairy