Attachment of ferrocene nanotubes on beta-cyclodextrin self-assembled monolayers with molecular recognitions.
Ferrocene nanotubes were fabricated by binding carboxylic acid-derivatized ferrocenes onto template peptide nanotubes via hydrogen bonding. When these ferrocene-functionalized nanotubes were incubated with beta-cyclodextrin (beta-CD) self-assembled monolayers (SAMs) coated on patterned Au substrates in solution, the ferrocene nanotubes recognized and attached onto the beta-CD SAMs via host-guest molecular recognition. The ferrocene nanotubes were also observed to recognize the certain cavity size of CD. The attachment/detachment of nanotubes on the beta-CD SAMs was controlled electrochemically by tuning the redox states of ferrocene nanotubes. This electric field-responsive building block may be applied to build nanometer-sized switching components in electronics and sensors.
Chen
Yung-fou
YF
Banerjee
Ipsita A
IA
Yu
Lingtao
L
Djalali
Ramin
R
Matsui
Hiroshi
H
D002240:Carbohydrate Sequence; D005296:Ferrous Compounds / Q000737:chemistry*; D006046:Gold / Q000737:chemistry; D000075163:Metallocenes; D018625:Microscopy, Atomic Force; D008969:Molecular Sequence Data; D015394:Molecular Structure; D043942:Nanotubes / Q000737:chemistry*; D010455:Peptides / Q000737:chemistry; D012825:Silicon / Q000737:chemistry; D013499:Surface Properties; D047392:beta-Cyclodextrins / Q000737:chemistry*
D005296:Ferrous Compounds; D000075163:Metallocenes; D010455:Peptides; D047392:beta-Cyclodextrins; D006046:Gold; C004998:ferrocene; D012825:Silicon