Sometimes you need to wear super nerd t-shirts. This one is really geeky with the parts of a microscope written out for all to see. I’m guessing you scientists that spend most of your life staring into these things, probably love this design. It kind of lets people know about what you do in a fun way, instead actually having to say molecular blah blah blah.
People immediately switch off when you start talking like that, but if you can ease them into it with a cute visual, you have a better chance of not boring them to death.