Fabrication and Application of Enantioselective TiO2 Nanoflims by Molecular Imprinting

TiO
₂
nanofilms that are imprinted by spin-coating with (R)-and (S)-enantiomers of propranolol, 1,1'-bi-naphthol, and 2-(4-isobutylphenyl)-propionic acid were prepared on quartz plates by spin-coating. After template removal, the imprinted films showed much better binding for template enantiomers than the corresponding enantiomers. Moreover, the improved enantioselectivity was obtained by controlling film thickness.