What Factors Affect the Stability of Nanomaterials?
Several factors influence the stability of nanomaterials:
1. Size and Shape: Smaller nanoparticles tend to possess higher surface energy, making them more reactive and less stable compared to larger ones. 2. Surface Chemistry: The functionalization of nanoparticle surfaces with specific molecules can significantly impact their stability. 3. pH and Ionic Strength: The environmental pH and ionic strength can alter the electrostatic interactions on the nanoparticle surface, affecting stability. 4. Temperature: Elevated temperatures can accelerate processes such as oxidation, leading to degradation. 5. Light Exposure: UV light can induce photodegradation in some nanomaterials.
