Performance: Impurities can alter the optical and electrical properties of nanomaterials, affecting their performance in applications such as solar cells and semiconductors. Safety: In biomedical applications, impurities can lead to adverse biological reactions, making it essential to use highly pure materials. Reproducibility: High purity ensures that experimental results are reproducible, which is a cornerstone of scientific research. Regulatory Compliance: Many industries have stringent regulations regarding material purity, especially in pharmaceuticals and food manufacturing.