- About Us
- Career Center
- Nano-Social Network
- Nano Consulting
- My Account
Faster than lion tamers... More powerful than snake charmers... Make way for the bacteria trainers! Professor Sylvain Martel and his team at the École Polytechnique de Montréal NanoRobotics Laboratory have achieved a new world first: "training" living bacteria to build a nanopyramid.
These miniature construction workers are magnetotactic bacteria (MTB): they have their own internal compasses, allowing them to be pulled by magnetic fields. MTB possess flagella bundles enabling each individual to generate a thrust force of approximately 4 picoNewtons. Professor Martel's team has succeeded in directing the motion of a group of such bacteria using computer-controlled magnetic fields. In an experiment conducted by Polytechnique researchers, the bacteria transported several epoxy nanobricks and assembled them into a step-pyramid structure, completing the task in just 15 minutes. The researchers have also managed to pilot a group of bacteria through the bloodstream of a rat using the same control apparatus.
A first in the world of science, this assembly of a structure by bacteria under human control opens up extremely promising avenues in the fields of medicine and bio-engineering; the researchers' ultimate goal is to make it possible to use MTB inside living organisms, by having them travel through the bloodstream. For example, they could carry drugs directly into the heart of tumours, function as pathogen detectors, repair organs, or operate micro-factories for conducting pharmaceutical or genetic tests.
Professor Martel's work gained widespread international attention in 2007 when his team became the first in the world to direct an untethered nanorobot through a blood vessel in a living animal. The new projects his team is currently working on include construction of a tiny, autonomous robot propelled by a microchip combining electronic components with MTB. The latter would be contained in microreservoirs, with the thrust they produce controlled by magnetic fields generated by nanoconductors inserted into the same reservoirs.
Watch a video of the bacteria building the pyramid on YouTube:
About École Polytechnique de Montréal
Founded in 1873, École Polytechnique de Montréal is one of Canada's leading engineering institutions in terms of both teaching and research. It is the largest engineering school in Québec in terms of the size of its student body and the scope of its research activities. École Polytechnique provides instruction in 13 engineering specialties and is responsible for more than one-quarter of Québec's university research in engineering. The school has 230 professors and nearly 6,300 students. It has an annual operating budget of close to $86 million, in addition to a $56.4-million research and infrastructure fund.
For more information, please click here
Communications and Recruitment Office
École Polytechnique de Montréal
Tel.: 514 340-4711, ext. 2339
Cell: 514 941-5660
Copyright © École Polytechnique de MontréalIf you have a comment, please Contact us.
|Related News Press|
News and information
Healthcare Nanotechnology (Nanomedicine) Market Size To 2020 June 5th, 2015
Chivalrous Knight Does Pro Bono June 27th, 2015
Newly-Developed Biosensor in Iran Detects Cocaine Addiction June 23rd, 2015
Researchers first to show that Saharan silver ants can control electromagnetic waves over an extremely broad range of the electromagnetic spectrum—findings may lead to biologically inspired coatings for passive radiative cooling of objects June 19th, 2015
Cellulose from wood can be printed in 3-D June 17th, 2015