%0 Journal Article %J J. Am. Chem. Soc. %D 2003 %T Sub-100 nm Confinement of Magnetic Nanoparticles Using Localized Magnetic Field Gradients %A Urbach, A. R. %A Love, J. C. %A Prentiss, M. G. %A Whitesides, G. M. %K accepted 9/11/03 %K Author Security Code: A75AE %K ja0378308 %K needs revisions 9/2/03 %K sent revisions 9/5/03 %B J. Am. Chem. Soc. %V 125 %P 12704-12705 %8 8/8/03 %G eng %L 856 %F 79