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    Nanoparticles for 3D Printing in water open door to advanced Biomedical materials

    August 1, 2017, Categories  Physics, Technology/Electronics, Chemistry/Nanotechnology

    Hybrid nanoparticles as photoinitiators. a. Electron microscope image of hybrid nanocrystal. The inset shows a schematic of semiconductor nanorod with a metal tip. b. Bucky ball structure produced by rapid 3-D printing in water using HNPs as photoinitiators. c. Spiral printed with HNPs by two photon printer providing high resolution features. Credit: Adapted with permission from Pawar et al., Nano Lett. DOI: 10.1021/acs.nanolett.7b01870. Copyright (2017) American Chemical Society.

    Hybrid nanoparticles as photoinitiators. a. Electron microscope image of hybrid nanocrystal. The inset shows a schematic of semiconductor nanorod with a metal tip. b. Bucky ball structure produced by rapid 3-D printing in water using HNPs as photoinitiators. c. Spiral printed with HNPs by two photon printer providing high resolution features.
    Credit: Adapted with permission from Pawar et al., Nano Lett. DOI: 10.1021/acs.nanolett.7b01870. Copyright (2017) American Chemical Society.

    A new type of photoinitiator for 3D printing in water could further the development of biomedical accessories, bring advances in traditional industries such as plastics, and offer an environmentally friendly approach to additive manufacturing...

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    Astronomers discover ‘heavy metal’ supernova rocking out

    August 1, 2017, Categories  Astronomy/Space

    This artist’s impression of SN 2017egm shows the power source for this extraordinarily bright supernova. The explosion was triggered by a massive star that collapsed to form a neutron star with an extremely strong magnetic field and rapid spin, called a magnetar. Debris from the supernova explosion is shown in blue, and the magnetar is shown in red. (Credit: M. Weiss/CfA)

    This artist’s impression of SN 2017egm shows the power source for this extraordinarily bright supernova. The explosion was triggered by a massive star that collapsed to form a neutron star with an extremely strong magnetic field and rapid spin, called a magnetar. Debris from the supernova explosion is shown in blue, and the magnetar is shown in red. (Credit: M. Weiss/CfA)

    Many rock stars don’t like to play by the rules, and a cosmic one is no exception. A team of astronomers has discovered that an extraordinarily bright supernova occurred in a surprising location. This “heavy metal” supernova discovery challenges current ideas of how and where such super-charged supernovas occur. Supernovas are some of the most energetic events in the Universe...

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    Quasars may Answer how Starburst Galaxies were extinguished

    August 1, 2017, Categories  Astronomy/Space

    An artist´s view of the heart of a quasar. Credit: NASA

    An artist´s view of the heart of a quasar. Credit: NASA

    Observations suggest quasars may starve galaxies of energy needed to form stars. Some of the biggest galaxies in the universe are full of extinguished stars. But nearly 12 billion years ago, soon after the universe first was created, these massive galaxies were hotspots that brewed up stars by the billions. How these types of cosmic realms, called dusty starburst galaxies, became galactic dead zones is an enduring mystery.
     
    Astronomers at the University of Iowa offer a clue. They say quasars, powerful energy sources believed to dwell at the heart of galaxies, may be responsible for why some dusty starburst galaxies ceased making stars...
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    Researchers Develop Technology to make Aged Cells Younger

    July 31, 2017, Categories  Health/Medical, Biology/Biotechnology

    Telomerase mRNA Reverses Senescence in Progeria Cells. Journal of the American College of Cardiology. DOI: 10.1016/j.jacc.2017.06.017

    Telomerase mRNA Reverses Senescence in Progeria Cells. Journal of the American College of Cardiology. DOI: 10.1016/j.jacc.2017.06.017

    John P. Cooke, M.D., Ph.D studied cells from children with progeria, a rare condition marked by rapid aging that usually robs them of the chance to live beyond their early teens. They focused on progeria, because the condition tells them a lot about aging in general that’s ultimately relevant to all of us. “These kids are dying of heart attack and stroke at 13, 14, 15 years old,” Cooke said. Although current therapies are useful, they only add a year or two, on average, to the child’s life...

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