Okay, imagine you have a special sticker that can only stick to one specific thing. Let's say it can only stick to a red ball. Now, imagine you have another special sticker that can only stick to a blue ball.
Now, let's pretend that these stickers are really tiny and you can't see them with your eyes. They are so tiny that you need a special microscope to see them.
When you look at these stickers under the microscope, you can see that they are arranged in two layers. The bottom layer has the stickers that can only stick to red balls and the top layer has the stickers that can only stick to blue balls.
This arrangement of two layers is called a double layer. But why is it called "biospecific"? Well, the word "bio" means life, and "specific" means it can only stick to one specific thing. So, "biospecific" means that these stickers are designed to stick to specific things found in living organisms.
Now, you might be wondering, why is this double layer of sticker important? Well, scientists use these double layers to do lots of cool things!
For example, they can use it to detect and study different molecules in our bodies. Just like the stickers can only stick to specific color balls, these double layers can stick to specific molecules in our bodies. This can help scientists understand how our bodies work and find new ways to help people who are sick.
So, the double layer of biospecific stickers is like a special tool that scientists use to learn more about our bodies and make new discoveries.