title: Hierarchical host-guest assemblies formed on dodecaborate-coated gold nanoparticles.
abstract: Undecahydro-mercapto-closo-dodecaborate (BSH), a purely inorganic cluster anion, serves as an unconventional stabilizing ligand for the preparation of gold nanoparticles (AuNPs). The BSH-capped AuNPs serve as nano-scaffolds, allowing for the creation of supramolecular architectures by using polycationic macrocyclic host molecules, through strong host-guest complexation. An amphiphilic calixarene (CX) forms first mono- and subsequently bi-layer assemblies on the BSH-AuNP surfaces depending on the CX concentration. The inorganic-organic hybrid materials, combined with host-dye displacement assays, serve as a chemosensing ensemble for negatively charged molecules, including DNA.
authors.affiliation: Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Bremen, Germany. k.assaf@jacobs-university.de.
authors.forename: Khaleel I
authors.initials: KI
authors.lastname: Assaf
authors.forename: Andreas
authors.initials: A
authors.lastname: Hennig
authors.forename: Shu
authors.initials: S
authors.lastname: Peng
authors.forename: Dong-Sheng
authors.initials: DS
authors.lastname: Guo
authors.forename: Detlef
authors.initials: D
authors.lastname: Gabel
authors.forename: Werner M
authors.initials: WM
authors.lastname: Nau