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IIT Kanpur

From Glass to Gel: Smarter & Softer Way to Monitor Temperature — Biocompatible, Flexible, Wearable, Real-Time Sensing

15 Aug, 2025 | Research & Innovation

From rigid thermometers to skin-like smart sensors—temperature sensing just got a futuristic upgrade!

Researchers at IIT Kanpur—Prof. Siddhartha Panda and PhD scholar Gaurav Kumar—are turning heads with their latest innovation:

Soft, skin-like gel sensors that monitor body temperature continuously—without the discomfort and fragility.

Why move beyond mercury & digital thermometers?

  • Mercury = fragile & toxic
  • Digital = inconsistent & non-wearable
  • Both = one-time snapshots, not real-time monitoring

Enter the Alginate-Based Gel Sensor — a true game changer:

  • Made from natural biopolymers
  • Flexible & skin-conformal
  • Reusable & self-healing
  • Operates at ultra-low voltage (~0.1 V)
  • Perfect for kids, elderly & long-term care patients.

Whether you're tracking fevers, monitoring inflammation, or ensuring post-surgical recovery, these eco-smart sensors offer real-time, wearable temperature tracking—with comfort, safety, and precision. 

Dive into the full research:
https://doi.org/10.1016/j.cej.2025.165331
https://doi.org/10.1016/j.carbpol.2024.122258

The future of healthcare is wearable, green, and gel-soft. Proud innovation from IIT Kanpur.