Nanopropeller – The Smallest Propeller in the World!

Small is usually being used to describe a thing that have the petite size. However, when someone said, “The smallest”, it could be something that very small, or might be we cannot detect it with our bare eyes! Although it’s a little bit hard to believe, but according to Peer Fischer, a experienced technology researchers from The Rowland Institute at Harvard University, had invented a very spectacular technology: A remote-controlled nanopropeller, which is have the look like sperm but mimic the corkscrew motion of flagella. According Fischer explanation, Flagella are the structure some bacteria use to swim through water. Instead of swimming through it, the Flagella mostly use a corkscrew motion to drive bacteria through the water. By this way, it can save up more energy! Fischer clarified that the motion of flagella is inspired him and his colleagues, Ambarish Ghosh to build this incredibly and powerful nanopropellers. Actually, they’re made of glass, and each of them has a spherical head about 200 to 300 nanometers across. A corkscrew-shaped tail is attached on the nanopropeller, which is measured up to 2 micrometer long. To be honest, it’s even smaller than human sperm, as it sized about one-tenth the length of…

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New Medical Robots Can Be as Small as Bacteria!

If you’re being told by someone in 20 years ago that you can create a robot which has a size as small as bacteria, the people might be said some words right in front your face, “You must be a psycho, as it’s impossible!” Well, guess what! The brilliant ETH Zurich researchers have put on their own efforts. In the end, they’re able to create world’s first medical micro-robots has a size as small as bacteria. Check out the above figure, you might find that the robot is somewhat like a form of Flagella sp. Yep, it isn’t April’s Fool and you didn’t get it wrong here. This is the latest medical micro-robots, which has an average length of 5 – 15 µm long. They’re in spiral shape, tiny head and can easily swim at a speed of up to one body length per second! Honestly, you cannot even see the micro-robots at all, unless you’re observing them under a microscope. The researchers also have given a name for these medical micro-robots and they’re called “Artificial Bacterial Flagella (ABF)”. Bradley Nelson, the professor at the Institute of Robotic and Intelligent Systems at ETH Zurich said that the ABFs could be…

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