The molecular dynamic simulation of dimethyl sulfoxide aqueous solution under the electric magnetic field

In this paper the polarization properties, static dielectric constant properties and hydrogen bond dynamic of dimethyl sulfoxide (DMSO) aqueous solution were investigated under a non-polarized electric magnetic (E/M) field by molecular dynamics (MD) simulation. It was found that the E/M field significantly influences the structure and reorientation dynamics of DMSO-H2O interactions. As the strength of E/M field increasing, the polarization and average hydrogen-bond number of water-water increase after a threshold of E/M field strength. But the static dielectric constant shows different trend after a threshold of E/M field strength. An empirical formula was proposed, predicting E/M field strength depending on the dielectric constant of DMSO aqueous solution.