1. Chemical Reactivity: Smaller nanoparticles often exhibit higher chemical reactivity due to their increased surface area, which provides more active sites for reactions. 2. Optical Properties: The optical properties, such as quantum dots, can vary with size, influencing how they absorb and emit light. This is key in applications like imaging and display technologies. 3. Mechanical Strength: Nanomaterials can exhibit superior mechanical properties like increased strength and flexibility compared to their bulk counterparts. 4. Electrical Conductivity: The electronic properties of materials can also be tuned through size optimization. For example, the conductivity of carbon nanotubes can be adjusted by controlling their dimensions.
