“…The confinement of liquids in spaces of nanometer size has proven a useful tool for the investigation of the glass transition. 1,2,3,4,5,6,7,8,9,10,11 Such experiments can provide valuable information about the increasingly cooperative nature of molecular motion assumed to arise during the gradual transition from a liquid into a glass under cooling.1 , 2 ,3, 6 ,11 Moreover, confinement studies enable to investigate the glassy and supercooled states of liquids that cannot be easily supercooled in their bulk form, avoiding crystallization when encaged in pores holding a limited number of molecules only. One of the most prominent examples in this respect is water, 12,13,14,15,16,17,18,19 a liquid of obvious relevance in numerous fields.…”