An analysis has been carried out of classifications of modern enterosorbents, and of the chemical nature of toxic substances. It has been noted that all classifications are based only on the chemical nature of sorbents, but completely ignore the structural factor. It has been shown the porosity makes a number of specific properties of sorbents, such as: long-term achieving of the adsorption equilibrium and the occurrence of molecular sieve effect.
It has been analyzed properties of nonporous nanosilica as the most promising material for creating enterosorbents. It’s true due to the fact nanosilica differs from other sorbents by large sorption capacity concerning proteins (500–700 mg/g) and microorganisms (108–1010 g-1) and by high rate of adsorption of proteins (15–30 min).
A material in the form of a stable aqueous dispersion which based on nanosilica for intracorporal detoxifying of human body has been described.