Engineered Nanoparticles, Natural Nanoclay and Biochar, as Carriers of Plant-Growth Promoting Bacteria oleh Milica Pavlicevic, Wael Abdelraheem, Nubia Zuverza-Mena, Tana O’Keefe, Salma Mukhtar, Gale Ridge, John Ranciato, Christy Haynes, Wade Elmer, Joseph Pignatello, Luca Pagano, Marina Caldara, Marta Marmiroli, Elena Maestri, Nelson Marmiroli, Jason C. White