For example, silica (SiO2) has a molecular weight of 60 g/mole and TEOS has a molecular weight of 208 g/mole, so the weight of silica produced is 60/208 or 0.29 times the amount of TEOS. For TMOS the value is 0.39 (the molecular weight of TMOS is 152 g/mole).In the event that the liquid form of the precursor of the encapsulating agent is a solution, then a solvent will need to be employed and the