# This $1 Sensor Could Soon Detect Parkinson’s Disease—Using Only Your Tears Low-cost diagnostic device is revolutionizing health technology. - **Source:** [Inc.com](https://brifing.si/source/07cb1004-a796-47d7-9801-fc5c7388471d) - **Published:** 2026-07-15 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/a16862f0-d035-45be-930e-aeddde33a250 ## Innovative Sensor Technology This graphene-based sensor can detect Parkinson's disease using tear samples. The technology offers a less invasive and faster alternative to traditional methods. ## Low-Cost Diagnosis The sensor costs around $1, making it a significant advantage for early diagnosis, especially in developing countries. ## Startup Potential The project is preparing to launch as a startup company, potentially creating a new business model in health technology. ## Tear Analysis The sensor analyzes biomarkers in tears to detect Parkinson's disease, offering a simpler and painless method compared to blood samples. ## Importance of Early Detection Early detection of Parkinson's disease can greatly facilitate the treatment process. This sensor could play a crucial role in catching the first signs of the disease. ## Revolution in Health Technology This sensor could usher in a new era in health technology. Low-cost and effective diagnostic methods may become more widespread in the future. ## Sources covering this story - https://www.inc.com/lucia-auerbach/sensor-could-soon-detect-parkinsons-disease-using-only-your-tears/91372663 — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._