Artículo de revista
Theoretical study of the adsorption process of antimalarial drugs into acrylamide-base hydrogel model using dft methods: the first approach to the rational design of a controlled drug delivery system
Registro en:
Corporación Universidad de la Costa
REDICUC - Repositorio CUC
Autor
Márquez, Edgar
Mora, José R.
Puello, Esneyder
Rangel, Norma
De Moya, Aldemar
Trilleras, Jorge
Cortes, Eliceo
Institución
Resumen
The interaction between three widely used antimalarial drugs chloroquine, primaquine and amodiaquine with acrylamide dimer and trimer as a hydrogel model, were studied by means of density functional theory calculation in both vacuum and water environments, using the functional wb97xd with 6-31++G(d,p) basis set and polarizable continuum model (C-PCM) of solvent. According to binding energy, around −3.15 to −11.91 kJ/mol, the interaction between antimalarial compounds and hydrogel model are exothermic in nature. The extent of interaction found is primaquine > amodiaquine > chloroquine. The natural bond orbital (NBO) calculation and application of second-order perturbation theory show strong charge transfer between the antimalarial and hydrogel model. In addition, the results suggest these interactions are polar in nature, where hydrogen bonds play a principal role in stabilization of the complex. Comparing with the gas-phase, the complexes in the water environment are also stable, with suitable values of Log P (Partition coefficient), and dipolar momentum. Consequently, these results encourage to test acrylamide hydrogels as antimalarial delivery systems.