In a project that will likely be watched by football players, runners and other athletes, researchers at MIT and Harvard Medical School say they are developing an injectable gel that could speed repair of torn cartilage, a common sports injury, and may help injured athletes return to competition sooner. The technique uses the patient’s own cartilage-producing cells and has the potential to be more effective and less invasive than conventional cartilage repair techniques, which may include extensive surgery, they say.
When the liquid mixture is injected into areas where cartilage is torn, such as a knee joint, the material hardens into a gel upon exposure to ultraviolet light, leaving the transplanted cells in place so they can grow new cartilage where it is needed. The biodegradable material will be described in the Jan. 10 issue of Biomacromolecules, a peer-reviewed journal of the American Chemical Society, the world’s largest scientific society.
Torn cartilage is an extremely painful, hard-to-heal injury, particularly since cartilage does not regenerate on its own. It most often occurs as a result of traumatic injuries, as during sports, and is most common in the knee joint, but the condition also can occur as a result of normal daily activity. Conventional treatment methods include rest, pain medication and, sometimes, invasive repair surgery. Patients undergoing surgery can face a slow, painful recovery.
Michael Bernstein | EurekAlert!
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Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
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An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
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