MIT researchers have created a groundbreaking disposable DNA-based sensor capable of detecting diseases like cancer and HIV at home—at a cost of just 50 cents. The sensor is not only highly precise but also shelf-stable for weeks without refrigeration, making it ideal for use in remote or resource-limited settings.
The technology relies on electrochemical sensors that incorporate a DNA-chopping enzyme from the CRISPR gene-editing system. When the enzyme encounters a disease-related genetic target—such as a cancer-linked gene—it activates and begins cutting surrounding DNA strands attached to the sensor’s electrode. This disruption changes the electrical signal, signaling the presence of the disease.
Continue reading… “Low-Cost, At-Home Diagnostic Sensor Could Revolutionize Disease Detection”