How Can the Stability of Dispersed Nanoparticles Be Maintained?
Ensuring the stability of dispersed nanoparticles is crucial for their practical application. Strategies to maintain stability include:
Surface Modification: Coating nanoparticles with surfactants, polymers, or other stabilizing agents to prevent re-agglomeration. pH and Ionic Strength Adjustment: Tuning the pH and ionic strength of the dispersion medium to minimize interparticle attractions. Use of Dispersants: Adding chemical dispersants that adsorb onto nanoparticle surfaces and provide steric or electrostatic stabilization. Optimized Storage Conditions: Storing dispersed nanoparticles under controlled conditions (e.g., temperature, light exposure) to prevent changes in dispersion quality.
