Guwahati : In a recent development, a team of researchers of IIT Guwahati have developed a paper-based sensor that can detect the freshness and quality of milk.
The research team led by Pranjal Chandra, Assistant Professor, Department of Bioscience and Bioengineering, IIT Guwahati along with Kuldeep Mahato, a research scholar and a Ph.D student developed the paper-based sensor to detect the quality of milk.
“Now anyone check the quality of milk from home with the help of filter paper just by clicking a picture of the filter paper and compare it in the smartphone application just by matching the colour range of the paper” an IIT Official said.
Speaking to the media, Chandra said, we have prepared a disposable kit by which you can check whether the milk is pasteurized or not. So in this case, what we have done is we have used punching machine and the disk out of that filter paper. We have done a lot of wet chemistry on that, we have immobilized a specific receptor molecule which interacts with the particle by a mark which is present in the raw milk, however when we pasteurize it that molecule is not present, so that is the basis of the development of the sensing system.”
