DST Unit of Nanoscience, HSB 148, IIT Madras, India
Keeping in mind the need for digital education, we have developed a compact device that can be useful for students across the country to perform experiments at their homes. In addition to their regular academic activities, this experimental digital learning tool can enhance their experimental skills and analytical ability. Besides, a student can regularly use this device as a sensing platform for monitoring water quality. Similarly, the product can also enhance health awareness. Therefore, we believe that this technology and applications can enhance learning, by promoting inquiry. If applied well, the device can be a part of the DE initiatives of Govt. of India. In terms of magnitude, there are over 150,000 high schools in India and 60 million students in them in the secondary and senior secondary levels. Check this. Even a single device in a school may make a big difference.
When implementing any arsenic sensing technology at a community scale, it is essential to consider factors such as cost, ease of use, sensitivity, specificity, and the ability to handle many samples. Keeping in mind this information, we have developed an electrochemical sensor that can detect arsenic in water by measuring changes in current. These sensors utilize electrodes that undergo specific reactions in the presence of arsenic, producing electrical signals proportional to the concentration. This technology can be integrated into automated monitoring systems for continuous arsenic monitoring. We have been working in this direction.