Redox- and pH-Controlled Mechanized Nanoparticles (pages 1669–1673)
Niveen M. Khashab, Ali Trabolsi, Yuen A. Lau, Michael W. Ambrogio, Douglas C. Friedman, Hussam A. Khatib, Jeffrey I. Zink and J. Fraser Stoddart
Version of Record online: 9 MAR 2009 | DOI: 10.1002/ejoc.200801300
Ferrocene-based mechanized nanoparticles have been prepared, loaded with Rhodamine dye, and then capped with either β-cyclodextrin (top) or cucurbituril (bottom). Both of these systems were operated successfully under redox (oxidation of ferrocenedicarboxylic acid) control in the presence of β-cyclodextrin and under pH (deprotonation of ferrocenedicarboxylic acid at pH > 4) control in the presence of cucurbituril.