Binding ability properties of β-cyclodextrin dimers linked through their secondary faces towards cancer chemotherapeutic agent methotrexate
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Aykac, Ahmet; Martos Maldonado, Manuel Cristo; Casas Solvas, Juan Manuel; García Fuentes, Luis Sebastián; Vargas Berenguel, AntonioFecha
2012-04-10Resumen
The binding ability properties of two β-cyclodextrin dimers linked through their secondary faces by short, rigid spacer arms towards the cancer chemotherapeutic agent methotrexate were studied by ITC and NMR (1D and ROESY) experiments. Both dimers are able to bind two molecules of methotrexate with a binding constant between 2.4 and 3.5 times higher than that for native β-cyclodextrin, the dimer having the shortest linker forming the most stable complex.
Palabra/s clave
β-Cyclodextrin dimers
Complexation ability
Methotrexate
Solubility
Calorimetry
NMR
Binding constants