Journal
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
Volume 40, Issue 1, Pages 226-235Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07391102.2020.1814871
Keywords
DFT; isoniazid drug; nanocarriers; MC and MD simulations
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In this study, the ability of B(12)N(12) fullerene-like nanoclusters to act as a drug carrier for isoniazid anti-tuberculosis drug was investigated. The results showed that B(12)N(12) nanoclusters can effectively carry the drug and the adsorption of isoniazid on BN nanoparticles and nanotubes is stable and energetically favorable.
In this work, the ability of B(12)N(12)fullerene-like nanoclusters as a drug carrier for isoniazid anti-tuberculosis drug has been studied by DFT methods. Binding energies in both gas and water phases are reported. The formed bonds between B12N12-FLN and Iso drug are studied and computed using QMAIM method. NPA is computed to obtain the total charges transferred in the B12N12-FLN-Iso drug complexes, NPA obtained values suggested that the cluster may oxidize the coordinated of Iso drug. The charge-transfer energy values are also computed and confirmed that the charges were transferred from the non-bonding lone-pair (n) of N and O atoms orbitals to the sigma* orbitals of B and N atoms of B12N12-FLN. Also, the adsorption of Iso drug on BN nanoparticles surface (different sizes and shapes) and BN nanotubes was studied by Monte Carlo simulation. We found that increasing the BN size did not affect significantly on the adsorption energies of Iso drug for all various BN nanoparticles shapes. All adsorption energies obtained by MC calculations are negative values which revealed that the adsorption of the Iso drug molecule on BN surfaces is exothermic, spontaneous and energetically favourable. Also, the stability of B12N12-FLN-Iso drug complex in water explicitly was studied by MD simulations. MD simulation confirmed that iso-B12N12-FLN complexes are stable in the presence of water molecules. So, finally, we deduced that B(12)N(12)fullerene-like nanoclusters can be acted as a drug carrier for isoniazid anti-tuberculosis drug. Communicated by Ramaswamy H. Sarma
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