Functionalization
By introducing functional groups or nanoparticles, the cationic silica sol can be modified to achieve functionalization, expanding its application in specific fields. For example, introducing magnetic nanoparticles to prepare cationic silica sol with magnetic responsiveness for applications such as magnetic separation and magnetically targeted drug delivery.
Intelligentization
Combining smart materials and nanotechnology, cationic silica sol with stimulus-responsiveness (such as temperature, pH, light, etc.) can be prepared, achieving intelligent regulation of its properties. For example, by adjusting the temperature or pH value, the adsorption performance and catalytic activity of the cationic silica sol can be controlled to achieve intelligent separation and purification of target molecules.