V.Ya.Shur 
	
					    												
Serbia						                            
                            
						
 Research Article
												Uptake of Some Metallic Nanoparticles by, and their Impact on
Pulmonary Macrophages in Vivo as Viewed by Optical, Atomic Force, and
Transmission Electron Microscopy 						
Author(s): B.A.Katsnelson, L.I.Privalova, M.P.Sutunkova, M.Ya.Khodos, V.Ya.Shur, E.V.Shishkina, L.G.Tulakina, S.V. Pichugova and J.B.BeikinB.A.Katsnelson, L.I.Privalova, M.P.Sutunkova, M.Ya.Khodos, V.Ya.Shur, E.V.Shishkina, L.G.Tulakina, S.V. Pichugova and J.B.Beikin             
						
												
				 Optical microscopy (OM), semi-contact atomic force microscopy (sc-AFM), and transmission electron microscopy  (TEM) were applied to examine cells in the broncho-alveolar lavage fluid (BALF) obtained from rats 24 hours after  instillation of different metallic particles suspended in deionised  water or of water without any particles. In a comparative  experiment  with  iron  oxide  Fe 3 O 4  (magnetite) particles having a mean diameter of 10 nm, 50 nm or 1 μm, it was  demonstrated that, given equal mass doses, nanoparticles (NPs) induce much more intensive recruitment of phagocytes  with a much more significant shift toward neutrophil leukocytes (NL) count in the BALF cell population than micrometric  particles  do,  this  shift  being  an  indirect  but  informative  index  of  particle  cytotoxicity  for  alveolar  macrophages  (AM).   Judging by NL/AM ratio, this cytotoxicity dim.. View More»
				  
												DOI:
												 10.4172/2157-7439.1000129