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G - Physics – 06 – F

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G06F 19/00 (2006.01) G06F 17/50 (2006.01)

Patent

CA 2489378

A coarse grain model that mimics a lipid molecule (DMPC) (702), is used to simulate self-assembly of a lamellar bilayer starting from a disordered configuration. The coarse grain model is orders of magnitude less demanding of CPU time compared to all-atom models. An initial bilayer-like structure is generated from a disordered configuration of the coarse grain models using a Monte Carlo simulation (704). The initial bilayer-like structure is refined using a molecular dynamics simulation (706). For relatively small systems, the molecular dynamics simulation can be performed under constant volume or constant pressure conditions. For larger systems, the molecular dynamics simulation is preferably performed under constant pressure conditions.

L'invention concerne un modèle à grains grossiers qui imite une molécules lipidique (DPMC) (702), afin de stimuler l'auto-assemblage d'une bicouche lamellaire à partir d'une configuration désordonnée. Le modèle à grains grossiers est considérablement moins exigeant en temps machine que les modèles faits entièrement d'atomes. Une structure de type bicouche initiale est générée à partir d'une configuration désordonnée des modèles de grains grossiers au moyen d'une simulation Monte Carlo (704). La structure de type bicouche initiale est raffinée au moyen d'une simulation à dynamique moléculaire (706). Pour les systèmes relativement petits, la simulation à dynamique moléculaire peut être effectuée dans des conditions de volume ou de pression constants. Pour les systèmes plus grands, la simulation à dynamique moléculaire est, de préférence, réalisée dans des conditions de pression constante.

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