Nanospheres can be synthesized using various methods, each offering specific advantages and limitations. Some common techniques include:
1. Chemical Vapor Deposition (CVD): This method involves the chemical reaction of gaseous precursors on a substrate to form solid nanospheres. 2. Sol-Gel Process: In this approach, nanoparticles are formed from the hydrolysis and polymerization of metal alkoxides. 3. Emulsion Polymerization: This technique uses emulsified droplets as a template to create polymeric nanospheres. 4. Laser Ablation: High-energy laser pulses are used to vaporize a material, forming nanospheres upon rapid cooling.