gold nanoparticles

Gold nanoparticles are tiny pieces of gold, so small that thousands could fit across the width of a human hair. Their small size gives them unique properties, like vibrant colors and the ability to interact with light differently than bulk gold. These properties make them useful in various fields, including medicine (for targeted drug delivery and imaging), electronics, and cosmetics. Because their surface area is large relative to their volume, they can be easily modified or combined with other substances, enabling innovative applications while maintaining the stability and beauty associated with gold.