This 3D printer prints a mosquito's trunk!
This 3D printer uses a mosquito's proboscis to print complex objects half the thickness of a human hair.
This is no joke. Scientists were looking for commercially available 3D printing nozzles that were ultra-thin and durable. But, unable to find anything similar, they decided to look for nozzles in nature. That's where the idea came from: borrowing nozzles from mosquitoes. It turned out that the mosquito proboscis, with an internal diameter of 20 micrometers (approximately 100% thinner than commercially available nozzles), is ideal for printing. The mosquito proboscis can withstand an internal pressure of approximately 60 kilopascals before rupturing, which is sufficient for delivering thick bioink.