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18 Current news about the topic escherichia coli

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Light-engineered bacterial shapes could hold key to future labs-on-a-chip

Genetically modified bacteria used as 'microbricks' for building next-gen microscopic devices

17-Aug-2018

Scientists have used light patterns to control the swimming speed of bacteria and direct them to form different shapes. Controlling bacteria in this way means it could be possible to use them as microbricks for building the next generation of microscopic devices. For example, they could be made ...

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A super resolution view of chemical reactions

14-Feb-2018

Researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences have demonstrated, using a super resolution microscopic technique, how to follow chemical reactions taking place in very small volumes. The method of analysis developed by the Warsaw physicists in collaboration ...

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How bacteria maintain and recover their shape

31-Jul-2017

Bacteria come in all shapes and sizes -- some are straight as a rod, others twist like a corkscrew. Shape plays an important role in how bacteria infiltrate and attack cells in the body. The helical shape of Helicobacter pylori, a species of bacteria which can cause ulcers, may help it penetrate ...

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No gene is an island

Gene’s neighborhood can influence whether and how the activity of a gene changes

27-Jul-2017

Genes do not exist in isolation. Like beads on a string, they sit next to each other on long DNA molecules called chromosomes. So far, little has been known about how the position of a gene on a chromosome affects its evolution. A new study by Călin Guet, Professor at the Institute of Science and ...

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Alternative antimicrobial compounds could come from wastewater

25-Jul-2017

Municipal wastewater may become a key ally in the fight against antibiotic-resistant disease-causing bacteria and fungi, a new study at Stellenbosch University (SU) found. "Certain bacteria in municipal wastewater produce antimicrobial compounds or biosurfactants that can help prevent the growth ...

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No more 'superbugs'?

Maple syrup extract enhances antibiotic action

04-Apr-2017

Antibiotics save lives every day, but there is a downside to their ubiquity. High doses can kill healthy cells along with infection-causing bacteria, while also spurring the creation of "superbugs" that no longer respond to known antibiotics. Now, researchers may have found a natural way to cut ...

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Starship Enterprise concept: Optical tractor beam traps bacteria

High resolution cell imaging

15-Dec-2016

Up to now, if scientists wanted to study blood cells, algae, or bacteria under the microscope, they had to mount these cells on a substrate such as a glass slide. Physicists at Bielefeld and Frankfurt Universities have developed a method that traps biological cells with a laser beam enabling them ...

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First cyborg bacteria developed

24-Oct-2016

ETH scientists have constructed bacteria in which growth can be controlled fully automatically by a computer. The interface between computer and bacteria is based on red and green light. The approach could help to optimise the biotechnological production of molecules. Researchers at ETH Zurich’s ...

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Cancer-fighting bacteria

Engineers program E. coli to destroy tumor cells.

22-Jul-2016

Researchers at MIT and the University of California at San Diego (UCSD) have recruited some new soldiers in the fight against cancer — bacteria. In a study the scientists programmed harmless strains of bacteria to deliver toxic payloads. When deployed together with a traditional cancer drug, the ...

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Eating air, making fuel

27-Jun-2016

All life on the planet relies, in one way or another, on a process called carbon fixation: the ability of plants, algae and certain bacteria to "pump" carbon dioxide (CO2) from the environment, add solar or other energy and turn it into the sugars that are the required starting point needed for ...

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