3D Printed Exo-Friendly ECG Sensor Featuring Dry-Attachable Design

The healthcare of elderly individuals is an increasingly crucial focus within the global research community. A key tool for monitoring heart health is the electrocardiogram (ECG) sensor, enabling swift diagnosis of cardiac conditions. Current ECG technology often demands the application of electrolyte gel beforehand, leading to messy test areas, complex usage procedures, and time wastage in healthcare settings. Moreover, the reliance on silver/silver chloride electrodes, known for their conductivity and reliability, poses cost and environmental challenges due to mining and disposal processes. Additionally, single-use electrode contacts contribute significantly to landfill waste. There exists a pressing need for a viable alternative to silver-based contacts that integrates similar functionality, swift application, and sustainability. Introducing an eco-friendly origami-structured ECG sensor solution—this design offers dry attachability for clean and rapid use in testing areas. The origami structure reduces mechanical stress on electrical contacts, ensuring precise measurements through repeated usage. The printable polymer filament in the origami structure provides mechanical durability and prolonged functionality, enhancing the sensor's longevity. By utilizing biodegradable materials like carbon, cellulose, and shellac, our sensor upholds high electrical conductivity in an eco-friendly and cost-efficient manner. Overall, this user-friendly and sustainable ECG sensor presents a swift and accurate heart monitoring solution tailored to meet the needs of the aging population.