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The adhesion of two cylindrical colloids to a tubular membrane

Niu Yu-Quan Zheng Bin Cui Chun-Hong Wei Wei Zhang Cai-Xia Meng Qing-Tian

The adhesion of two cylindrical colloids to a tubular membrane

Niu Yu-Quan, Zheng Bin, Cui Chun-Hong, Wei Wei, Zhang Cai-Xia, Meng Qing-Tian
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Publishing process
  • Received Date:  04 October 2013
  • Accepted Date:  23 October 2013
  • Published Online:  05 February 2014

The adhesion of two cylindrical colloids to a tubular membrane

  • 1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant No. 11074151), and the National Basic Research Program of China (Grant No. 2011CB808100).

Abstract: The adhesion of two cylindrical colloids to a tubular membrane is investigated theoretically in terms of the full treatment of Helfrich model. By analyzing the free energy of the system, it is found that this adhesion can produce both shallow wrapping with relatively small wrapping angle and deep wrapping with big wrapping angle. A second-order adhesion transition from the desorbed to weakly adhered state is found, and a first-order phase transition where the cylindrical colloids undergo an abrupt transition from weakly adhered to strongly adhered state can be obtained as well. Different relative positions between rigid cylinders and membrane tube will affect the phase transition and structure of the system.

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