10.1186/2193-8865-3-22

The interaction between carbon nanotube and skin anti-cancer drugs: a DFT and NBO approach

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  • Maryam Hesabi*1,
  • Masoumeh Hesabi2,
  1. Department of Chemistry, Faculty of Science, Islamic Azad University, Rasht Branch, Rasht, 41476, IR
  2. Faculty of Nursing, Shahid Beheshti University of Medical Sciences, Rasht Branch, Rasht, 41625, IR
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Published in Issue 25-04-2013

How to Cite

Hesabi, M., & Hesabi, M. (2013). The interaction between carbon nanotube and skin anti-cancer drugs: a DFT and NBO approach. Journal of Nanostructure in Chemistry, 3(1 (December 2013). https://doi.org/10.1186/2193-8865-3-22
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Abstract

Abstract Nowadays, nanotubes are used widely as container agents to transport bioactive peptides, proteins, nucleic acids, and drugs, and used to deliver their cargos to cells and organs in human bodies. In this work, the possibility of the formation of stable composite between carbon nanotubes and skin anti-cancer drugs has been investigated. The nanotube used in this study includes 60 C atoms of (6,6) type. Density functional theory-based methods (B3LYP/6-31G) show that the composites between drugs (aminolevulinic acid and tretinoin) and nanotube are more stable than the single agents. The difference in the hybridization of C and O atoms can cause to a difference between bond lengths, angles, and charges. The natural bond orbital calculations indicate that some donor atoms (lone pair of oxygen or nitrogen atoms) can transfer electron to acceptor atoms ( σ * or π * in carbon nanotube) and the occupancy of the oxygen lone pair with increasing p orbital share of the lone pair electrons of oxygen decreases. Then, the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO), the HOMO-LUMO bandgap, and the electronic chemical potential ( μ ) for the lowest energy derived to estimate the structural stability of the composites have been investigated. Results show that nanotube-tretinoin is more stable than nanotube - aminolevulinic acid.

Keywords

  • Nanotube,
  • Aminolevulinic acid,
  • Tretinoin,
  • DFT,
  • HOMO-LUMO gap
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