1. Nanoparticles: These include metals like gold and silver, which have applications in medicine and electronics. 2. Nanotubes and Nanowires: Carbon nanotubes and silicon nanowires are used in electronics and materials science due to their exceptional strength and conductivity. 3. Quantum Dots: These are semiconductor nanoparticles that have applications in displays and biological imaging due to their unique optical properties. 4. Nanocomposites: These materials combine nanoparticles with bulk materials to enhance properties such as strength, toughness, and conductivity.
