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56 Current news about the topic bacteria

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How the internal compass is constructed in magnetotactic bacteria

19-Apr-2018

Magnetotactic bacteria are usually found in freshwater and marine sediments. One species, Magnetospirillum gryphiswaldense, is easily cultivated in the lab - with or without magnetic nanoparticles in their interior depending on the presence or absence of iron in the local environment. "So these ...

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Spikes of graphene can kill bacteria on implants

16-Apr-2018

A tiny layer of graphene flakes becomes a deadly weapon and kills bacteria, stopping infections during procedures such as implant surgery. Operations for surgical implants, such as hip and knee replacements or dental implants, have increased in recent years. However, in such procedures, there is ...

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New 'NanoZymes' use light to kill bacteria

Artificial enzymes could be used in hospitals and toilets

06-Apr-2018

Researchers from RMIT University have developed a new artificial enzyme that uses light to kill bacteria. The artificial enzymes could one day be used in the fight against infections, and to keep high-risk public spaces like hospitals free of bacteria like E. coli and Golden Staph. E. coli can ...

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Microarray rapid test speeds up detection in case of a Legionella pneumophila outbreak

26-Mar-2018

In an outbreak of Legionnaires' disease, finding the exact source as quickly as possible is essential to preventing further infections. To date, a detailed analysis takes days. Researchers at the Technical University of Munich have now developed a rapid test that achieves the same result in about ...

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Helicobacter creates immune system blind spot

By extracting cholesterol from host cell membranes, Helicobacter pylori generates “micro-islands”

16-Mar-2018

The gastric bacterium H. pylori colonizes the stomachs of around half the human population and can lead to the development of gastric cancer. It is usually acquired in childhood and persists life-long, despite a strong inflammatory defence reaction in the gastric mucosa. Such inflammation is ...

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How to target a gene

Finding proteins important for plant development, DNA repair and gene targeting

08-Mar-2018

All living cells have invented mechanisms to protect their DNA against breaks during duplication and against damage by UV-light or chemicals. A team of biologists led by Prof. Dr. Ralf Reski from the Faculty of Biology of the University of Freiburg, Germany has now found that members of the RecQ ...

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Plastic bags that cannot breathe

Optimized enzyme variant can degrade plastic under anaerobic conditions

05-Mar-2018

Many bio-plastic bags have no place in the garbage. They dissolve too slowly in oxygen-deficient environments like biogas plants and when incinerated they are a burden to the environment. A research project at the Austrian Centre of industrial Biotechnology (acib) hunts for enzymes, which ...

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A protein that self-replicates

01-Mar-2018

Long regarded as a biological aberration, amyloids are fibrous aggregates of short protein fragments. Amyloids have a bad reputation because they are thought to be the cause of multiple neurodegenerative diseases, including Alzheimer's, Parkinson's and Creutzfeldt-Jakob disease. It was only ...

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Surprise finding points to DNA's role in shaping cells

12-Feb-2018

As a basic unit of life, the cell is one of the most carefully studied components of all living organisms. Yet details on basic processes such as how cells are shaped have remained a mystery. Working at the intersection of biology and physics, scientists at the University of California San Diego ...

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Lab-on-a-chip for tracking single bacterial cells

02-Feb-2018

Researchers at the Biozentrum of the University of Basel, together with researchers from the Max Planck Institute in Dresden, have set up a novel lab-on-a-chip with accompanying automatic analysis software. As they report in Nature Communications, this integrated setup can be used to study gene ...

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