Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (4): 735.doi:

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Molecular Dynamics Simulation of the Inclusion Complex of β-Cyclodextrin with CTAB at Air/Water Interface

PANG Jin-Yu, XU Gui-Ying*, BAI Yan, ZHAO Tao-Tao   

  1. Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
  • Received:2008-09-26 Online:2009-04-10 Published:2009-04-10
  • Contact: XU Gui-Ying, E-mail:xuguiying@sdu.edu.cn

Abstract:

Molecular dynamics simulation was used to study the inclusion complex of β-cyclodextrin(β-CD) with CTAB at air/water interface. Two systems were chosen: the molar concentration ratio of β-CD and CTAB was 1∶1 and 2∶1, respectively. We investigated the energy of the systems, radial distribution function and mean square displacement in this paper. As a result, it was suggested that CTAB molecules and β-CD molecules form inclusion complexes at air/water interface in which the guest is included within the β-CD cavity and they are easily to form 1∶1 inclusion complexes.

Key words: Molecular dynmics simulation, β-Cyclodextrin, Cetyhrimethyl ammonium bromide(CTAB), Inclusion complex, Air/water interface

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