- Nanoparticles: These are particles between 1 and 100 nanometers in size and can be made from metals, semiconductors, or polymers. They are used in applications ranging from drug delivery systems to catalysts. - Nanotubes: These cylindrical structures, such as carbon nanotubes, have remarkable mechanical, electrical, and thermal properties and are used in electronics, optics, and materials science. - Nanowires: These are wires with a diameter on the nanometer scale and can be made from various materials including metals, semiconductors, and polymers. They are used in sensors, transistors, and other electronic components. - Quantum Dots: These are semiconductor nanoparticles that have quantum mechanical properties, making them useful in applications like medical imaging and quantum computing.
