The development of wearable biosensors has garnered significant interest in the realm of real-time health monitoring. Here, we introduce a novel eTattoo equipped with sodium ion sensors, offering a breakthrough in continuous ionic monitoring. The eTattoo, designed with flexible and biocompatible materials, integrates ion-selective electrodes capable of detecting sodium ions with high sensitivity and specificity. Through a combination of microfluidic channels and sensing components, this technology enables non-invasive, real-time monitoring of sodium ion fluctuations in the body.
The eTattoo’s application potential spans various domains, including healthcare, sports performance, and personalized medicine. Its seamless integration with the skin allows for long-term wear without discomfort, facilitating continuous sodium ion monitoring in diverse physiological conditions. Moreover, preliminary evaluations demonstrate the eTattoo’s robustness, accuracy, and compatibility with wireless data transmission systems, fostering its suitability for integration into modern healthcare paradigms. This sodium ion sensing eTattoo represents a promising avenue for personalized health monitoring, opening doors to new possibilities in continuous physiological tracking and diagnostic applications.