In a major breakthrough, researchers at Tezpur University have developed a portable, low-cost device to detect tuberculosis (TB) using a smartphone without chemicals or dyes. Led by Prof. Pabitra Nath, the device uses the natural autofluorescence of TB bacteria and includes a heating system to enhance detection. Weighing under 300 grams and costing less than ₹25,000, it’s ideal for rural areas lacking labs and trained personnel. The innovation, already patented and published in Biosensors and Bioelectronics, is expected to revolutionize TB screening in underserved regions. The team includes experts from Physics, Molecular Biology, and Labdig Innovations.