ABSTRACT
Learning disorders in children have been linked to serious causes such as oxidative stress and malaria. Numerous medications have been used to address the variables, but the majority of them have been shown to be less successful. Because the metal complexes have been reported to have greater antioxidant and therapeutic effects, chelation between biologically active ligands and transition metals has garnered a lot of attention in recent years. Still, not enough research has been done on the theoretical analysis of the biological efficacy of uracil and biotin mixed-ligand complexes. In order to explore the nature of interaction and the potential applications of the ligands and their metal complexes as antioxidants and antimalarial drugs, mixed-ligand complexes of uracil and biotin with Cu2+ and Zn2+ are theoretically studied in this work using molecular docking and the density functional theory method (Dmol3). Following geometry optimization, the metal complexes were found to adopt a tetrahedral geometry. Based on the results of the Lowest Unoccupied Molecular Orbital (LUMO) and Highest Occupied Molecular Orbital (HOMO), the Cu(II) complex was found to be the most reactive with the least value of ionization potential and more stable than the Zn(II) complex. Cu(II) complex has the lowest value of ionization potential (IP) according to the results of the antioxidant activity in the neutral state, indicating that it is a superior antioxidant candidate than Zn(II) complexes. The Cu(II) complex demonstrates the maximum binding affinity with the receptor protein, as evidenced by its lowest negative score. Consequently, it may be said that Cu(II) complex has the potential to be an antioxidant and an antimalarial medication.
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