IIT-Madras Designs New Glucose Patch for Easier Diabetes Care

A new glucose-monitoring patch developed at IIT Madras could change how millions of Indians check their sugar levels each day. The device replaces repeated finger pricks and costly imported monitors with a tiny microneedle patch and a reusable electronic unit that shows readings directly on the skin.

Rising diabetes numbers
India now has more than 10 crore people living with diabetes. The common method, finger-prick testing, is painful and must be done several times a day. Continuous glucose monitors give real-time readings but are expensive and depend on phones or special readers, making them hard for many families to use.

Built from scratch for comfort
The IIT Madras team, led by Prof. Parasuraman Swaminathan, designed the device from the ground up. It combines a disposable sensor patch, a reusable electronics block and a patented low-power display that works directly on the patch. With a quick glance, users can see their glucose levels anywhere, without carrying extra devices.

Focus on real-world use
Prof. Swaminathan said the effort was meant to create something people would use every day. In diabetes care, easy monitoring helps patients stay stable, avoid emergencies and prevent long-term damage.

A boost for Indian manufacturing
L. Balamurugan, an MS Entrepreneurship scholar working on the project, said the device also strengthens India’s independence in medical technology. A home-grown continuous monitor reduces reliance on imported products and builds space for local production and jobs.

Moving toward commercial rollout
The project has already led to the creation of a start-up at IIT Madras Research Park. The company will refine the device, run clinical trials and prepare it for the market. The research team is also in talks with medical-device companies for technology licensing. Several outside groups have shown interest in joining the next phase.

Patents and early testing
Prototype units have been built and tested in the lab. The display module has two granted Indian patents. The core technology has two more Indian patents and one international PCT application. Lab tests show good accuracy and stable readings.

What comes next
The upcoming steps include clinical trials, manufacturing readiness, regulatory checks and testing in day-to-day conditions.

Low-power display is the key
A standout feature is the patented electro-thermochromic display. It uses power only when the reading changes, which allows long battery life and reduces the need for frequent charging.

If the next rounds of testing go well, IIT Madras may soon offer an affordable, painless and practical glucose-monitoring patch designed to fit India’s needs — a small device with a large potential impact