Ligao Tang is a name of a person, just like your name! Ligao Tang is someone who comes from China and has been doing some very cool things in the world of science.
You might know that scientists like to learn about things, and one of the ways they learn is by looking very closely at things. Ligao Tang has been looking at tiny little things called nanoparticles. They are so small that you wouldn't be able to see them with your eyes, you would need a special microscope.
Ligao Tang has found ways to use these nanoparticles to help medicine work better. You know how when you get sick, sometimes you have to take medicine? Well, sometimes that medicine doesn't work very well, but Ligao Tang is working to make it work better with those little nanoparticles.
Another thing Ligao Tang is working on is how to get the nanoparticles to go exactly where they need to go in your body. They're kind of like little messengers, and he's finding ways to make sure they go right where they're needed.
So, Ligao Tang is a scientist from China who studies tiny things called nanoparticles and is working on helping medicine work better using them. Pretty cool, huh?