Researchers Found a Way To Control Bacteria To Transport Microscopic Cargo (phys.org) 20
An anonymous reader quotes a report from Phys.Org: Bacteria form the largest biomass in the world, larger than all the animals and plants combined, and they are constantly moving, but their movement is chaotic. The researchers [at the Niels Bohr Institute, University of Copenhagen, in collaboration with groups in U.S. and U.K.] pursued the idea that if this motion could be controlled, they might be able to develop it into a biological tool. They used a liquid crystal to dictate the direction of the bacterial movement, and added a microscopic cargo for the bacteria to carry, more than five times the size of the bacteria.
Assistant Professor Amin Doostmohammadi at the Niels Bohr Institute explains that in the past, there have been attempts to control the behavior of bacteria. But he and his colleagues adopted a novel approach: "We thought to ourselves, how about we create a track for the bacteria? The way we do that experimentally is to put the bacteria inside a liquid crystal. The trick is that a liquid crystal is not like a crystal, nor is it a liquid, it is somewhere in between. Each molecule in the crystal has an orientation, but doesn't have a positional order. This means that the molecules can flow like a liquid, but they can also align like a crystal at the same time. [...] Strong jets of bacteria moving in a designated direction without fluctuations is the great outcome of the experiment, according to Amin Doostmohammadi. What usually happens if the jets of bacteria are strong enough to be useful, the concentration of bacteria has to be high, and instabilities typically start to appear. The jet becomes unstable and chaotic. But in the liquid crystal pattern, the instabilities can be largely suppressed and prevent the bacterial jets from becoming chaotic. The pattern dictates the direction. This means it is possible to create jets of bacteria strong enough to carry strings of microscopic cargo, each piece of cargo five times the size of the bacteria themselves.
Assistant Professor Amin Doostmohammadi at the Niels Bohr Institute explains that in the past, there have been attempts to control the behavior of bacteria. But he and his colleagues adopted a novel approach: "We thought to ourselves, how about we create a track for the bacteria? The way we do that experimentally is to put the bacteria inside a liquid crystal. The trick is that a liquid crystal is not like a crystal, nor is it a liquid, it is somewhere in between. Each molecule in the crystal has an orientation, but doesn't have a positional order. This means that the molecules can flow like a liquid, but they can also align like a crystal at the same time. [...] Strong jets of bacteria moving in a designated direction without fluctuations is the great outcome of the experiment, according to Amin Doostmohammadi. What usually happens if the jets of bacteria are strong enough to be useful, the concentration of bacteria has to be high, and instabilities typically start to appear. The jet becomes unstable and chaotic. But in the liquid crystal pattern, the instabilities can be largely suppressed and prevent the bacterial jets from becoming chaotic. The pattern dictates the direction. This means it is possible to create jets of bacteria strong enough to carry strings of microscopic cargo, each piece of cargo five times the size of the bacteria themselves.
Impressive (Score:1)
When will a Coronavirus vaccine be ready? [theguardian.com] (Mar. 18, 2020)
"About 35 companies and academic institutions are racing to create such a vaccine, at least four of which already have candidates they have been testing in animals. The first of these – produced by Boston-based biotech firm Moderna – will enter human trials imminently [time.com]." (Feb. 25, 2020)
Re: (Score:3)
Commencement of trials does not mean we're close to a treatment. Based on past experience, we're looking at 12 to 18 months before a definitive vaccine is available.
Re: (Score:1)
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I don't agree that facemasks are enough, but I'm shocked that you got modded Troll. Your post was rational and tenable.
Re: Impressive (Score:2)
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Great! Now we can make bacterial bioweapons... (Score:1)
This is fantastic news. Can't wait for them to "accidentally" release ticks carrying Anthrax bacterium who are in turn carrying packets of novel coronaviruses behind them. Science!
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Way to parrot the CCP's lies. Idiot.
The next great co. (Score:1)
Amoebazon
Approved (Score:2)
Chocolate microscopes?
Practicality (Score:1)
And then we're all screwed (Score:4, Funny)
Bacteria form the largest biomass in the world, larger than all the animals and plants combined ... it is possible to create jets of bacteria strong enough to carry strings of microscopic cargo, each piece of cargo five times the size of the bacteria themselves.
Just wait until the bacteria unionize ...
Bacterias are no longer fashionable (Score:2)
If you want grant money, switch to the American Virus, the Chinese students flee the US in droves, in private jets.
https://ejinsight.com/eji/arti... [ejinsight.com]