I suppose when you work in a lab everyday you will observe something that is going to surprise you. But for me the most surprising thing was when I prepared gold nanoparticles (red color) in the lab and put some fungi spores into the gold nanoparticle solution. After few days the solution changed from red to colorless and I observed the fungi under electron microscope and found the gold nanoparticles were on the surface of fungi.
So, what we got was fungi body coated with gold nanoparticles and these structures helped us in faster electron transfer in our devices.
Can discuss it in detail over the chat 🙂