I'm wondering whether there is a viscosity limit for a nanoparticle-hydrogel composite before it is categorize as nanogel or otherwise. For example, if a formulation is composed by entwinement of nanoparticles in a high viscous hydrogel such as 3% chitosan, can that formulation still call a nanogel?
Usama Ahmad
Limit of viscosity is determined by rate of drug release from formulation. If you have planned to develop a prolonged release formulation then viscosity should be higher and vice versa. It all depends on the amount of drug release you intend in a specific time.
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