Non-Mechanical Bubble Microbots

Tiny bubble "robots" built of bubbles and powered by lasers? We'll get to the tiny Fantastic Voyage Proteus vessels cruising my bloodstream keeping me healthy someday.


(Optically controlled microbubble robots)

To get the bubble robots to move around in this saline solution, a 400 mW 980nm (that's infrared) laser is shone through the bubble onto the heat-absorbing surface of the working area. The fluid that the bubbles are in tries to move from the hot area where the laser is pointing towards the colder side of the bubble, and this fluid flow pushes the bubble towards the hot area. Moving the laser to different sides of the bubble gives you complete 360 degree steering, and since the velocity of the bubble is proportional to the intensity of the laser, you can go as slow as you want or as fast as about 4 mm/s. This level of control allows for very fine manipulation of small objects, and the picture below shows how a bubble robot has pushed glass beads around to form the letters "UH" (for University of Hawaii, of course).

Besides being able to create as many robots as you want of differing sizes out of absolutely nothing (robot construction just involves a fine-tipped syringe full of air), the laser-controlled bubbles have another big advantage over more common microbots in that it's possible to control many different bubbles independently using separate lasers or light patterns from a digital projector. With magnetically steered microbots, they all like to go wherever the magnetic field points them as one big herd, but the bubbles don't have that problem, since each just needs its own independent spot of light to follow around.

Via IEEE Spectrum.

Scroll down for more stories in the same category. (Story submitted 6/6/2012)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Robotics ")

Medical Assistant Robot May Roam The Halls Of Hospitals
'Take care, sir.'

Amplified Nerves Lead To Mind-Controlled Prosthetic Hands
'The electrical impulses generated by your brain command everything...' - Martin Caidin, 1972.

FlyCroTug Micro Drones Do Heavy Lifting
'It extended three of its tiny arms sideways to lock on...' - James P. Hogan, 1979.

China Delivery Robot Development Quickens During COVID-2019 Outbreak
'Something very much like a camouflage-painted kangaroo.' - Bruce Sterling, 1994.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Another Soil Bacterium Eats Plastic
'...the plastic was dissolved before his eyes.'

reLive Memorial Come Back As A Tree
'It was time - time to go again. She touched the leaf. She was wanted.'

Engineered Living Building Materials
'... it was the cheapest building material known.'

Draw Circuits With Conductive Ink
'It's rewiring things... squeezing silver toothpaste in a ribbon along the printed circuitry.'

Arkangel: Automatic Visual Censoring
It's whatever the Party says it is, Winston.

NASA Competition To Design A Bucket Drum For Moon Mining
'There was a heap of discarded ore where Grantline had carted and dumped it...'

Medical Assistant Robot May Roam The Halls Of Hospitals
'Take care, sir.'

No Autonomous Trucks? Wait, What?
'...it resembled conventional human-operated transportation vehicles, but with one exception -- there was no driver's cabin.'

As Big As A Biltong - World's Largest 3D Printer
'Huge and old, it squatted in the center of the settlement park... On the concrete platform... lay a heap of originals to be duplicated.'

Drones Used To Smuggle Contraband Into Prison
'And some mega chip inside so it never runs into anything and no cop ever sees it.'

Are You Ready For Commercial Space Travel?
'It wasn't a pleasant trip; it was a miserable trip on a miserable, undersized tourist rocket...'

Amplified Nerves Lead To Mind-Controlled Prosthetic Hands
'The electrical impulses generated by your brain command everything...'

FlyCroTug Micro Drones Do Heavy Lifting
'It extended three of its tiny arms sideways to lock on...'

Virtual Whitney Houston In Concert
Badda-Bing, Badda-Bang

Robot Teaches Itself To Walk
'My whole idea is to get away from a machine with a set of prearranged instructions, and let them teach themselves by trial and error.'

DARPA's Subterranean Challenge
Let the machines explore the underground city!

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.