His research interests include biophysical and structural biochemistry of lipid-protein systems in lung surfactants and biomembranes. In addition, Dr. Nag is involved in using Langmuir films, giant liposome, Deuterium-NMR, fluorescence and atomic force microscopy, differential scanning calorimetry, Raman/IR imaging, and molecular dynamics simulations to study lung surfactant and biomembrane structure and dysfunction. He is the recipient of a prestigious five-year New Investigator Grant from the CIHR and major infrastructure funding from CFI and NSERC for Surface Nanobiology Laboratory.