Variability in bioreactivity linked to changes in size and zeta potential of diesel exhaust particles in human immune cells. oleh Srijata Sarkar, Lin Zhang, Prasad Subramaniam, Ki-Bum Lee, Eric Garfunkel, Pamela A Ohman Strickland, Gediminas Mainelis, Paul J Lioy, Teresa D Tetley, Kian Fan Chung, Junfeng Zhang, Mary Ryan, Alex Porter, Stephan Schwander