DFT analysis to investigate the potential utilization of metal oxide nanoclusters as targeted drug delivery systems for valproic acid
Ochiq kirish: yoʻq
Annotatsiya
Valproic acid (VPA) is a widely used therapeutic agent for epilepsy, bipolar disorder, and migraines, but its clinical utility is limited by poor solubility, short half-life, and toxicity. To address these challenges, this inclusive innovation study explores the potential of metal oxide nanoclusters (X 12 O 12 X = Be, Mg, Ca) as advanced drug delivery systems for VPA using density functional theory (DFT) calculations, utilizing the M06-2X and B3LYP methods with a 6-311G(d,p) basis set. The adsorption behavior, electronic properties, and thermodynamic stability of VPA on Ca 12 O 12 , Mg 12 O 12 , and Be 12 O 12 nanoclusters were systematically investigated. The results showed that VPA adsorbed on the surface of Ca 12 O 12 , Mg 12 O 12 , and Be 12 O 12 nanoclusters with adsorption energies of −76.75, −63.78, and −36.78 kcal mol −1 , respectively, in their most stable configurations. These findings indicate that VPA forms stable complexes with all three nanoclusters. Noncovalent interaction (NCI) and electron localization function (ELF) analyses confirmed the presence of electrostatic and charge transfer interactions, while thermodynamic parameters underscored the spontaneous and exothermic nature of VPA adsorption. In contrast, while the Ca 12 O 12 and Mg 12 O 12 nanoclusters showed negligible changes in their energy gaps after adsorption, the Be 12 O 12 nanocluster exhibited a significant reduction (−27.55% and −24.07% in gas and solvent phases), indicating enhanced sensitivity and reactivity in both phases. Notably, Be 12 O 12 demonstrated superior drug release kinetics, with a recovery time of 1.40 s under UV irradiation, compared to Mg 12 O 12 (1.68 × 10 19 s) and Ca 12 O 12 (1.97 × 10 29 s). Solvation studies further validated the stability of these nanoclusters in aqueous environments, with minimal interference in VPA binding. UV–Vis spectral analysis demonstrated distinct shifts in absorption maxima upon VPA adsorption, with Be 12 O 12 showing the most pronounced red shift (from 155 nm to 163 nm), further supporting its superior electronic interaction with VPA and suggesting that the Be 12 O 12 nanocluster could also serve as an optical sensor. These findings highlight Be 12 O 12 as a promising nanocarrier for targeted VPA delivery, offering improved bioavailability, controlled release, and reduced side effects, thus paving the way for its application in precision medicine.
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