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Separating Drugs with MagLev

Magneto-Archimedes levitation for identification of illicit drugs in powdered mixtures

11-Dec-2019

The composition of suspicious powders that may contain illicit drugs can be analyzed using a quick and simple method called magneto-Archimedes levitation (MagLev), according to a new study published in the journal Angewandte Chemie. A team of scientists at Harvard University, USA, has developed ...

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Broadband achromatic metalens focuses light regardless of polarization

New design doubles the efficiency of the metalens

23-Jan-2019

We live in a polarized world. No, we aren't talking about politics -- we're talking about light. Much of the light we see and use is partially polarized, meaning its electric field vibrates in specific directions. Lenses designed to work across a range of applications, from phone cameras to ...

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Meta-surface corrects for chromatic aberrations across all kinds of lenses

Single-layer surface of nanostructures can be incorporated into commercial optical systems

23-Nov-2018

Today's optical systems -- from smartphone cameras to cutting-edge microscopes -- use technology that hasn't changed much since the mid-1700s. Compound lenses, invented around 1730, correct the chromatic aberrations that cause lenses to focus different wavelengths of light in different spots. ...

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Creating a family tree for each body cell in real time

Evolving genetic barcodes show origin of cells in vivo

13-Aug-2018

All humans begin life as a single cell that divides repeatedly to form two, then four, then eight cells, all the way up to the ~26 billion cells that make up a newborn. Tracing how and when those 26 billion cells arise from one zygote is the grand challenge of developmental biology, a field that ...

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From medical imaging to 3D modelling

3D printing technique enables faster, better, and cheaper models of patient-specific medical data

31-May-2018

What if you could hold a physical model of your own brain in your hands, accurate down to its every unique fold? That question moved Steven Keating, Ph.D., who had a baseball-sized tumor removed from his brain at age 26 while he was a graduate student at the MIT. By collecting his imaging data he ...

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Tiny spiders, big color

15-May-2018

There's plenty that's striking about Phoroncidia rubroargentea, a species of spider native to Madagascar, starting with their size - at just three millimeters, they're barely larger than a few grains of salt. But the reason they caught Sarah Kariko's eye had more to do with their color. Unlike ...

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How pathogenic bacteria prepare a sticky adhesion protein

10-Apr-2018

Researchers at Harvard Medical School, the University of California, San Francisco, and the University of Georgia have described how the protein that allows strep and staph bacteria to stick to human cells is prepared and packaged. The research could facilitate the development of new ...

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Microbial murder mystery solved

10-Nov-2017

Immune cells called "killer cells" target bacteria invading the body's cells, but how do they do this so effectively? Bacteria can quickly evolve resistance against antibiotics, yet it seems they have not so readily been able to evade killer cells. This has caused researchers to become interested ...

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Google provides open source library for quantum chemistry

Platform-independent solution to integrate future developments

26-Oct-2017

Since physicists have been dealing with the theoretical description of molecules, the solving of quantum mechanical equations has been a major obstacle. This is supposed to be a thing of the past with the release of an open source based system. Google has introduced such a system to the public ...

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Keychain detector could catch food allergens before it's too late

08-Sep-2017

For kids and adults with food allergies, a restaurant outing can be a fraught experience. Even when care is taken, freshly prepared or packaged meals can accidentally become cross-contaminated with an offending food and trigger a reaction. Now researchers report the development of a new portable ...

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