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67 Current news from korea, republic of (south korea)

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Development of simplified new mass spectrometric technique using laser and graphene

13-Aug-2019

A technology that can obtain high-resolution, micrometer-sized images for mass spectrometric analysis without sample preparation has been developed. DGIST Research Fellow Jae Young Kim and Chair-professor Dae Won Moon's team succeeded in developing the precise analysis and micrometer-sized ...

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Efficiently producing fatty acids and biofuels from glucose

24-Jun-2019

Researchers have presented a new strategy for efficiently producing fatty acids and biofuels that can transform glucose and oleaginous microorganisms into microbial diesel fuel, with one-step direct fermentative production. The newly developed strain, created by Professor Sang Yup Lee and his ...

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Discovery of hippocampal mossy cell involvement to maximize antidepressant effects

28-May-2019

DGIST faculty clarified that the fundamental neural circuit mechanism involved in antidepressant efficacy to treat depression, one of serious mental diseases in today's society. This is expected to contribute to the development of next antidepressant that can advance the effects and speed of ...

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Microglia Turned On

Visualizing microglia in brain tissue with a fluorescence turn-on substrate

20-May-2019

Part of the immune system in the brain is made up of so-called microglia cells. Korean and Singaporean researchers have now developed a fluorescent probe that specifically labels this type of macrophage. The cells were visualized in cell culture and in the live brains of rodents. As detailed in ...

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Ragweed compounds could protect nerve cells from Alzheimer's

17-May-2019

As spring arrives in the northern hemisphere, many people are cursing ragweed, a primary culprit in seasonal allergies. But scientists might have discovered a promising new use for some substances produced by the pesky weed. In ACS' Journal of Natural Products, researchers have identified and ...

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Bacteria causing infections can be detected more rapidly

A fluorescent molecule for screening Gram-positive bacteria

09-May-2019

Two years ago, a group of infants died at the university hospital and it was found to be Gram-negative bacteria that caused their death. The Gram-negative bacteria turn into pink color and Gram-positive bacteria turn into violet color when stained using the Gram stain which is a bacterial ...

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Mussel research strenghtens graphene

Polydopamine acts as binder to achieve high mechanical and electrical properties

24-Oct-2018

Researchers demonstrated the mussel-inspired reinforcement of graphene fibers for the improvement of different material properties. A research group under Professor Sang Ouk Kim applied polydopamine as an effective infiltrate binder to achieve high mechanical and electrical properties for ...

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Correcting the eyesight of microscopes

02-Jul-2018

Scientists have discovered a new property of wave propagation, that leads to an all-new way to improve the resolution of virtually all optical technologies, including: microscope lenses, telecommunications, laser-based lithography, biological and astronomical imaging. All these systems transmit ...

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Flexible organic electronics mimic biological mechanosensory nerves

04-Jun-2018

Researchers at Seoul National University and Stanford University developed artificial mechanosensory nerves using flexible organic devices to emulate biological sensory afferent nerves. They used the artificial mechanosensory nerves to control a disabled insect leg and distinguish braille ...

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Peptide induces chirality evolution in a single gold nanoparticle

20-Apr-2018

For the first time, scientists have successfully created optically active, chiral gold nanoparticles using amino acids and peptides. Many chemicals significant to life have mirror-image twins (left-handed and right-handed structures), a characteristic that is conventionally called chirality. This ...

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