Switching surface chemistry with supramolecular machines

Bruce C. Bunker*, Dale L. Huber, James G. Kushmerick, Timothy Dunbar, Michael Kelly, Carolyn Matzke, Jianguo Cao, Jan O. Jeppesen, Julie Perkins, Amar H. Flood, J. Fraser Stoddart

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Tethered supramolecular machines represent a new class of active self-assembled monolayers in which molecular configurations can be reversibly programmed using electrochemical stimuli. We are using these machines to address the chemistry of substrate surfaces for integrated microfluidic systems. Interactions between the tethered tetracationic cyclophane host cyclobis(paraquat-p-phenylene) and dissolved π-electron-rich guest molecules, such as tetrathiafulvalene, have been reversibly switched by oxidative electrochemistry. The results demonstrate that surface-bound supramolecular machines can be programmed to adsorb or release appropriately designed solution species for manipulating surface chemistry.

Original languageEnglish (US)
Pages (from-to)31-34
Number of pages4
JournalLangmuir
Volume23
Issue number1
DOIs
StatePublished - Jan 2 2007

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Fingerprint Dive into the research topics of 'Switching surface chemistry with supramolecular machines'. Together they form a unique fingerprint.

Cite this