IIT Madras researchers develop pocket-friendly device to detect adulteration in milk
Tags: Science and Technology
Indian Institute of Technology Madras (IIT Madras) Researchers have developed a three-dimensional (3D) paper-based portable device that can detect adulteration in milk within 30 seconds.
An overview of the news
This new technology can be used at home and only one milliliter of liquid sample is required to test for adulteration.
The device can detect various commonly used adulterant agents such as detergent, soap, hydrogen peroxide, urea, starch, salt, and sodium-hydrogen-carbonate.
The traditional methods to test the purity of milk which are expensive and time consuming, this new technology is cost effective.
This new technology can also be used to test other liquids such as water, fresh juices and milkshakes.
Only one milliliter sample of any liquid will be sufficient to test for adulteration.
The 3D paper-based microfluidic device has a top and bottom cover, and a middle layer with a sandwich structure.
It helps in transporting dense liquids at a uniform speed.
A reagent is applied to its paper and left to dry.
After drying the paper is applied to the device and both the covers are sealed with double sided tape.
Whatman filter paper grade 4 is used in this design, allowing for greater liquid flow and reagent storage.
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