Dipak Patel, S. M. Ferdous Azam, P. S. Raghavendra Rao, Jasgurpreet Singh Chohan, Ripendeep Singh, Sikata Samantaray, Nivin Joy Thykattusserry, Yashwant Singh Bisht, Abhijit Bhowmik, Yalew Tamene. "Experimental investigation of ZnO nanoparticle–enhanced pongamia biodiesel for performance, combustion, emission, and sustainability assessment in a CI engine." Scientific Reports, 2026. doi:10.1038/s41598-026-54323-4