What Challenges Exist in the Use of Aqueous Suspensions?
Despite their advantages, several challenges need to be addressed:
Stability: Aggregation and sedimentation of nanoparticles can reduce the effectiveness of suspensions. Toxicity: While water is non-toxic, some nanoparticles may exhibit cytotoxicity or environmental hazards. Scalability: Producing large quantities of stable aqueous suspensions can be difficult and costly.