What are nanoparticles?

Nanoparticles are tiny particles that measure between 1 and 100 nanometers in size, which is about 100,000 times smaller than the width of a human hair. Due to their small size, nanoparticles often have unique physical and chemical properties, such as increased surface area and reactivity. They are used in a variety of fields, including medicine, electronics, energy, and environmental science. For example, nanoparticles can be used for targeted drug delivery, improving solar panel efficiency, or creating stronger materials. Understanding their behavior and potential risks is a key part of ongoing research.