عنوان مقاله [English]
Quantum calculation were carried out to investigate interaction between sitagliptin and piogliazone as diabetic drugs with single-walled carbon nanotubes (7, 7). In all calculations, the generalized gradient approximation (GGA) with double numerical (DND) was used. The reactivity regions and sites of nuleophilic and electrophilic these compounds are investigated using fukui functions basis on the Mulliken population analysis (MPA). The adsoption energies of sitagliptin and piogliazone on single-walled carbon nanotubes (7, 7) were calculated. Sitagliptin and piogliazone drugs were located inside SWCNT. The quantum molecular descriptors (ionization potential (I), vertical electron affinity (A), hardness (η), chemical potential (μ), softness (S), electrophilicity (ω) and electronegativity (χ)) of pristine SWCNT and SWCNT-drug complex are calculated. The negative values of adsorption energies indicate such interactions can be conceived as physicosorption. Data display that the adsorptions are exothermic and spontaneous. The obtained results show that the SWCNT (7, 7) can be reliable to perform as a carrier for sitagliptin and piogliazone molecules in drug delivery.