A stretchable continuous glucose monitor for skin-conformable wound management

Chronic wounds, especially those linked to diabetes, require continuous monitoring and timely interventions to prevent severe complications. The emergence of smart bandages equipped with multifunctional sensors offers a promising avenue to alleviate the burden on healthcare systems while minimizing delays in medical care. However, conventional electrochemical sensors often face limitations, including inadequate detection sensitivity and poor mechanical compatibility with biological tissue, thereby restricting their utility in smart bandages for long-term wound care applications. In this study, we present a stretchable continuous glucose monitor (CGM), based on organic electrochemical transistors (OECTs), for chronic wound care. By leveraging the amplification capability and the mechanical properties of stretchable OECTs, this platform achieves both high sensitivity and tissue compatibility. To demonstrate the potential for practical use, the sensors are integrated into a compact, coin-sized wearable readout system, enabling continuous and comfortable wound monitoring.