Detecting micro domains in model membranes with APL@VORO

APL@Voro is a program developed to aid in the analysis of Molecular dynamics trajectories of lipid bilayer simulations. Initially designed to work with GROMACS trajectory files, it may be used also with other trajectories if they are converted to Gromacs format (needed are the Gromacs trajectory file, PDB coordinate files and a GROMACS index files) to create a two dimensional geometric representation of a bilayer. The analysis of the bilayer is supported by using the Voronoi diagrams and Delaunay triangulations generated for different selection models of lipids. The values calculated on the geometric structures can be visualized in an interactive environment, plotted and exported to different file types. APL@Voro supports complex bilayers with a mix of various lipids and proteins and calculates the area per lipid and the bilayer thickness. The program is written in C++, open source and published under the GPL 3.0 License.

Download the software here.

For the algorithms used click here.