The core of the stretchable sensing solution mentioned includes which type of material?

The correct choice highlights polyurethane elastomer as a key material for stretchable sensing solutions. This material is particularly valuable in flexible electronics and wearable technology due to its excellent mechanical properties, such as high elasticity, tensile strength, and durability. Polyurethane elastomers can be engineered to exhibit specific levels of flexibility and robustness, making them ideal for applications requiring both stretchability and stability.

Unlike other materials, polyurethane elastomers can easily be formulated to be conductive or to have piezoresistive properties, which are critical for sensing applications. This capability allows them to accurately detect changes in pressure, strain, or touch, making them highly suitable for integration in various emerging technologies, from health monitoring devices to interactive surfaces.

On the other hand, options like elastic rubber and silicone gel, while useful in certain contexts for their elasticity, do not typically provide the same level of performance or functionality in sensing applications. Polyvinyl chloride, though widely used in various products, lacks the necessary flexibility and sensitivity characteristics required for effective stretchable sensors. The unique attributes of polyurethane elastomer truly position it as a frontrunner for advanced sensing technologies.