| Autor: |
Zhu Y; Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA. mlaradji@memphis.edu., Sharma A; Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA. mlaradji@memphis.edu., Spangler EJ; Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA. mlaradji@memphis.edu., Carrillo JY; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA., Kumar PBS; Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India., Laradji M; Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA. mlaradji@memphis.edu. |
| Abstrakt: |
Since many advanced applications require specific assemblies of nanoparticles (NPs), considerable efforts have been made to fabricate nanoassemblies with specific geometries. Although nanoassemblies can be fabricated through top-down approaches, recent advances show that intricate nanoassemblies can also be obtained through self-assembly, mediated for example by DNA strands. Here, we show, through extensive molecular dynamics simulations, that highly ordered self-assemblies of NPs can be mediated by their adhesion to lipid vesicles (LVs). Specifically, Janus NPs are considered so that the amount by which they are wrapped by the LV is controlled. The specific geometry of the nanoassembly is the result of effective curvature-mediated repulsion between the NPs and the number of NPs adhering to the LV. The NPs are arranged on the LV into polyhedra which satisfy the upper limit of Euler's polyhedral formula, including several deltahedra and three Platonic solids, corresponding to the tetrahedron, octahedron, and icosahedron. |
