AI Article Synopsis
- Scientists are working on making stretchy and sticky sensors using special materials called hydrogels.
- They created a new type of hydrogel that is strong, tough, and sticks well, which is important for wearable technology.
- This new hydrogel is not only strong and stretchy but also lets electricity flow and is see-through, making it great for wearable sensor devices.
Article Abstract
Recently, flexible and wearable sensors assembled from conductive hydrogels have attracted widespread attention. However, it is still a great challenge to make hydrogels with sufficient mechanical properties, self-adhesiveness and strain sensitivity. Here, a strong, tough, and self-adhesive hydrogel is successfully fabricated by a one-pot method, which introducing chitosan and 2-acrylamido-2-methylpropane sulfonic acid into the polyacrylamide network. The hydrogels exhibited adhesion (the peel strength reaches 798 N/m), mechanical property (The breaking strength and strain can reach 111 kPa and 2839%) and electrical conductivity (conductivity up to 0.0848 S/cm), which are suitable for wearable epidermal sensors. Besides, the hydrogels also possessed transparency. Therefore, this work would provide a novel insight on the fabrication of multi-functional self-adhesive hydrogel sensors.
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| http://dx.doi.org/10.1016/j.carbpol.2021.118240 | DOI Listing |
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