Tezpur: A team of researchers from Tezpur University has developed a compact, affordable smartphone-based device to detect Tuberculosis (TB), aimed at improving diagnostic access in rural and remote regions lacking advanced medical infrastructure.
Led by Prof. Pabitra Nath of the Department of Physics, the device operates without dyes or chemical stains, utilizing the natural autofluorescence of TB bacteria. It includes an integrated heating system to enhance signal detection, and costs under ₹25,000, weighing less than 300 grams. Unlike conventional LED fluorescence microscopy, which requires costly equipment, chemical agents like auramine-O, and trained personnel, the new device simplifies the process and allows for stain-free, field-level testing with a smartphone interface.
The research team includes Biprav Chetry, Chunuranjan Dutta, Dr. J. P. Saikia, Santanu Goswami, and Abhijit Gogoi from Labdig Innovations. A patent has been filed (Indian Patent Application No. 202431035472), and findings are published in Biosensors and Bioelectronics. Vice Chancellor Prof. Shambhu Nath Singh lauded the innovation, stating it could significantly boost India’s TB elimination efforts, especially in underserved areas.