Supercooled confined water and the kinetic glass transition

We present a Molecular Dynamics study of the single particle dynamics of supercooled water confined in a silica pore. Two dynamical regimes are found: close to the hydrophilic substrate molecules are in a glassy phase already at room temperature, while the water closer to the center of the pore (free water) undergoes a glass transition {\it \`a la Mode Coupling}. We predict the temperature of structural arrest of the free water. The same critical temperature and critical exponent $\gamma$ are extracted from both the diffusion coefficient and the relaxation time of the late $\alpha$ region.