New $5 wound sensor tracks healing without removing dressings

Researchers at RMIT University in Australia have developed a $5 Bluetooth-enabled wearable wound sensor that monitors healing without the need to remove dressings. The device continuously tracks key biomarkers such as temperature, pH, and inflammation—critical indicators of infection and wound healing progress—reducing the risk of bacterial contamination associated with frequent dressing changes. Early lab tests demonstrate that the sensor conforms well to curved body surfaces, making it practical for real-world use. The team is now preparing to collaborate with industry partners to advance the technology into clinical trials. A notable feature of this innovation is its reusability and sustainability, as it is made from biocompatible materials designed for durability, contrasting with many disposable smart bandages that generate medical waste. The sensor integrates seamlessly into existing medical manufacturing processes and could be produced at a cost below $5 per unit when scaled, potentially making it accessible for both developed and developing healthcare systems. This technology builds on RMIT’s patented high-resistivity silicon-based sensor platform capable of