Mechanically interlocked molecules (Chem. Soc. Rev. 2009, 38, 1802-1820; Acc. Chem. Res. 2001, 34, 477-487), such as bistable catenanes and rotaxanes, have been studied intensely in the context of the fundamental understanding of the so-called mechanical bond (Chem. Rev. 1995, 95, 2725-2828), as well as possible applications in nanoelectromechanical systems (Nat. Mater. 2005, 4, 704-710), mechanized nanoparticles (J. Am. Chem. Soc. 2007, 129, 626-634), and molecular electronics (Nature 2007, 445, 414-417). ProChimia is proud to be the first company in the world to offer a truly unique selection of these molecular machines. The compounds we market derive from the pioneering work of sir J. Fraser Stoddart at Northwestern University and use the dithiolane chemistry to connect the molecular machines to various types of surfaces including nanoparticles (J. Am. Chem. Soc. 2009, 131, 4233-4235).