a 10 wt aqueous solution of isophorone diamine has a ph of 12 a liquid foam forms upon agitating an aqueous mixture containing isophorone diamine modified graphene oxide it is contemplated to aerate with monodisperse air bubbles or other gases or other fluids air bubbles are encapsulated inside graphene shells as shown in fig6 c the shells have a layered structure made of at least one isophorone diamine modified graphene oxide sheet forming a barrier that is impermeable to air the filaments protruding from the shell surface are attributed to folds in the sheets or edge regions of the sheets as illustrated in the magnified portion of the cross section schematic depicting two folds and one edge region in between the folds the bubbles present a distribution of shapes and sized most bubbles have spheroidal or ellipsoidal shapes the dispersion of bubbles sizes is shown in the histogram in fig6 b over a population of 100 bubbles sizes ranged from 4 u03bcm to 164 u03bcm with an average size of 55 u03bcm liquid foams preparations with different distributions of bubbles sizes may be possible by engineering factors such as but not only the size and surface chemistry of the isophorone diamine modified graphene oxide sheets and or the size of the bubbles generated during the foaming process upon hearing a bubble by focusing light the thermal expansion of the air inside the bubble causes a deformation of the shell as the heating continues the pressure builds and the shell eventually ruptures releasing the encapsulated air as shown in the sequence of images in fig7 a to d sample preparation consisted in sandwiching an aliquot.