Nano Detectives: Spotting Melamine in Milk with Gold-Silver Sensors
Imagine tiny, gold-silver nanoparticles acting like superheroes, helping us detect harmful substances in milk! These nanoparticles, shaped like triangles, hexagons, and pentagons, are about 23-26 nanometers in size. They're created through a simple process called seed and growth, then placed on a ti