The incorporation of nano-objects into a hydrogel matrix generally leads to the formation of a denser, more crosslinked structure. As a result, the hybrid hydrogel can degrade slowly and may act as a reservoir for the controlled release of loaded drugs over an extended period. This effect is typically correlated to the amount of added nanoobjects without being limited to any particular type of material. This has been shown with carbon-based, inorganic, polysaccharide, lipid, metal and silica