Immobilization of molecular tubes on self-assembled monolayers of β-cyclodextrin and dodecanethiol inclusion complexes

Samitsu, Sadaki; Shimomura, Takeshi; Ito, Kohzo; Hara, Masahiko
October 2004
Applied Physics Letters;10/25/2004, Vol. 85 Issue 17, p3875
Academic Journal
A molecular tube (MT) is a tubular macromolecule formed by the one-dimensional linkage of α-cyclodextrins and exhibits molecular recognition for selecting the diameter of a polymer chain. In this letter, we immobilized MTs on a self-assembled monolayers (SAM) of inclusion complexes (DDT-CD) between dodecanethiol (DDT) and β-cyclodextrin (β-CD). The DDT-CD inclusion complexes formed uniform self-assembled monolayers on gold. We confirmed that the MTs were immobilized on the DDT-CD SAM using dynamic contact angle measurements, surface-plasmon resonance (SPR), and scanning probe microscopy (SPM).


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