New CRISPR technique Skips over portions of Genes that can cause Disease

CRISPR-SKIP: programmable gene splicing with single base editors. Genome Biology, 2018; 19 (1) DOI: 10.1186/s13059-018-1482-5

CRISPR-SKIP: programmable gene splicing with single base editors. Genome Biology, 2018; 19 (1) DOI: 10.1186/s13059-018-1482-5

In a new study in cells, University of Illinois researchers have adapted CRISPR gene-editing technology to cause the cell’s internal machinery to skip over a small portion of a gene when transcribing it into a template for protein building. This gives researchers a way not only to eliminate a mutated gene sequence, but to influence how the gene is expressed and regulated. Such targeted editing could one day be useful for treating genetic diseases caused by mutations in the genome, such as Duchenne’s muscular dystrophy, Huntington’s disease or some cancers.

CRISPR technologies typically turn off genes by breaking the DNA at the start of a targeted gene, inducing muta...

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Water-worlds are common: Exoplanets may contain vast amounts of water

Exoplanets similar to Earth. Credit: NASA

Exoplanets similar to Earth.
Credit: NASA

Scientists have shown that water is likely to be a major component of those exoplanets (planets orbiting other stars) which are between 2 to 4X the size of Earth. It will have implications for the search of life in our Galaxy. The work is presented at the Goldschmidt conference in Boston.

The 1992 discovery of exoplanets orbiting other stars has sparked interest in understanding the composition of these planets to determine, among other goals, whether they are suitable for the development of life. Now a new evaluation of data from the exoplanet-hunting Kepler Space Telescope and the Gaia mission indicates that many of the known planets may contain as much as 50% water. This is much more than the Earth’s 0.02% (by weight) water content...

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Novel Nanoparticle-based approach Detects and Treats Oral Plaque Without Drugs

In this illustration, nanoparticles attach to or are taken up by the bacteria cells. Pan and his students are the first group to demonstrate that early detection of dental plaque in the clinic is possible using the regular intraoral X-ray machine which can seek out harmful bacteria populations. Credit: University of Illinois Laboratory for Materials in Medicine

In this illustration, nanoparticles attach to or are taken up by the bacteria cells. Pan and his students are the first group to demonstrate that early detection of dental plaque in the clinic is possible using the regular intraoral X-ray machine which can seek out harmful bacteria populations.
Credit: University of Illinois Laboratory for Materials in Medicine

When the good and bad bacteria in our mouth become imbalanced, the bad bacteria form a biofilm (aka plaque), which can cause cavities, and if left untreated over time, can lead to cardiovascular and other inflammatory diseases like diabetes and bacterial pneumonia.

A team of researchers from the University of Illinois has recently devised a practical nanotechnology-based method for detecting and treating the harmful bacteria that cau...

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A valley so low: Electrons Congregate in ways that could be useful to ‘Valleytronics’

Elliptical orbits of bismuth surface electrons in a large magnetic field. The orientation and interference patterns of the electronic states reveal that the electrons prefer to occupy a single valley. Image created using a theoretical model of the data. Credit: Ali Yazdani Laboratory, Princeton University

Elliptical orbits of bismuth surface electrons in a large magnetic field. The orientation and interference patterns of the electronic states reveal that the electrons prefer to occupy a single valley. Image created using a theoretical model of the data.
Credit: Ali Yazdani Laboratory, Princeton University

Researchers have made a finding that could help usher in new area of technology called ‘valleytronics.’ The study found that electrons in bismuth crystals prefer to collect in one valley rather than being distributed equally across valleys, setting up a type of electricity known as ferroelectricity. Energy valleys forming in crystals can trap single electrons. These valleys potentially could be used to store information, greatly enhancing what is capable with modern electronic devices.

In ...

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