In Silico Study of Spacer Arm Length Influence on Drug Vectorization by Fullerene C 60

  • Khemir H
  • Tangour B
  • Moussa F
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Abstract

This work studies theoretically the effect of spacer arm lengths on the characteristics of a fullerene C 60 -based nanovector. The spacer arm is constituted of a carbon chain including a variable number of methylene groups ( n = 2–11). To improve the ability of the fullerene carriage, two arms are presented simultaneously through a malonyl bridge. Then the evolution of selected physicochemical parameters is monitored as a function of the spacer arm length and the angle between the two arms. We show here that while the studied characteristics are almost independent of the spacer arm length or vary monotonically with it, the dipole moment and its orientation vary periodically with the parity of the number of carbon atoms. This periodicity is related to both modules and orientations of dipole moments of the spacer arms. In the field of chemical synthesis, these results highlight the importance of theoretical calculations for the optimization of operating conditions. In the field of drug discovery, they show that theoretical calculations of the chemical properties of a drug candidate can help predict its in vivo behaviour, notably its bioavailability and biodistribution, which are known to be tightly dependent of its polarity.

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Khemir, H., Tangour, B., & Moussa, F. (2015). In Silico Study of Spacer Arm Length Influence on Drug Vectorization by Fullerene C 60 . Journal of Nanomaterials, 2015, 1–8. https://doi.org/10.1155/2015/374218

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