Description
Would you believe that red liquid is gold? Actually gold - a suspension of gold nanoparticles made right here in the lab from chloroauric acid and sodium citrate. In this video we make them, use a laser to demonstrate that they're there, and explain why they're red. Then we get into the science of how these invisible particles are being injected into cancer patients and destroying tumors with an infrared laser - without surgery, without radiation, without wrecking quality of life.
This is one of the most elegant intersections of physics, chemistry, and medicine I've ever come across. I think you'll agree.
Chapters:
0:00 Would you believe this is gold?
0:22 Making gold nanoparticles
1:42 Demonstrating they're there with a laser
2:14 Plasmon interaction with light
2:37 Nanoparticle colors
2:59 Nanoparticle heat generation
3:12 How nanoparticles cure cancer
#gold #nanoparticles #nanotechnology #chemistry #cancerresearch #nanoscience