Urea groups are tiny but mighty parts of molecules. They are found in both living organisms and man-made materials. These groups are known for their strength and ability to form special connections called hydrogen bonds. These bonds play a big role in how materials behave. Scientists have been studying urea groups for a long time. They often focus on a simple form c...

Lipid droplets are tiny fat bubbles inside cells. They are hard to study because they are small and move around a lot. For a long time, scientists have used a tool called Nile Red to see these droplets. It has been useful, but it has some problems. It is not very good at sticking to lipid droplets and it fades quickly under the microscope light. This makes it hard to...