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Coarse-Grained and Atomistic Simulations for the G=4 PAMAM-EDA Dendrimer

机译:G = 4 PAMAM-EDA树枝状聚合物的粗粒和原子模拟

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Extensive fully-atomistic molecular dynamics simulations have been performed for the G = 4 generation of the dendrimer PAMAM-EDA in water, with fully protonated and non-protonated amine groups. Some parameters from these results have been incorporated into a coarse-grained model suitable for Monte Carlo simulations. Satisfactory agreement is found between the dendrimer density profiles obtained from the Monte Carlo and the molecular dynamics simulations, both for the protonated and neutral molecules. The Monte Carlo and molecular dynamics trajectories have also been employed to calculate binary interactions between pairs of dendrimers. The interactions between G = 4 PAMAM-EDA dendrimers can be satisfactorily described by a theoretically proposed Gaussian potential.
机译:已经对水中G = 4的树枝状大分子PAMAM-EDA进行了广泛的全原子分子动力学模拟,具有完全质子化和非质子化的胺基。这些结果中的一些参数已合并到适用于蒙特卡洛模拟的粗粒度模型中。在质子化分子和中性分子的蒙特卡洛方法获得的树枝状分子密度分布图与分子动力学模拟之间均发现令人满意的一致性。蒙特卡洛和分子动力学轨迹也已被用来计算树枝状大分子对之间的二元相互作用。 G = 4 PAMAM-EDA树状聚合物之间的相互作用可以通过理论上提出的高斯势来令人满意地描述。

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