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    Repairing damaged nerves and tissue with spider threads

    Original @ Medical Xpress – latest medical and health news stories The golden orb-weaver spider from Tanzania spins such strong webs that Tanzanian fishermen use them for fishing. Their spider silk is more tear-resistant than nylon and four times more elastic than steel, is heat-stable up to 250° C, extremely waterproof and, on top of that, has antibacterial properties. These characteristics also make it attractive from the point of view of biomedical research. Initial studies conducted by Christine Radtke, new Professor for Plastic and Reconstructive Surgery at MedUni Vienna/Vienna General Hospital, have shown in an animal model that the threads have great potential for nerve and tissue repair. [...]

    Visualization of transcription initiation at single-molecule resolution

    Original @ Phys.org – latest science and technology news stories A novel approach developed at the Friedrich Miescher Institute for Biomedical Research (FMI) has allowed scientists in Dirk Schübeler’s group to dissect and quantify the individual steps of transcription initiation. Unexpectedly, they observed that RNA polymerases frequently dissociate from the DNA template, rather than pause, before transcription continues. They thus gained new mechanistic insights into gene regulation. [...]

    New virus discovered in migratory bird in Rio Grande do Sul, Brazil

    Original @ Phys.org – latest science and technology news stories Researchers at the University of São Paulo’s Biomedical Science Institute (ICB-USP) in Brazil have discovered a new virus in a migratory bird species. This is such a rare find that it can be considered a stroke of luck, especially because the virus in question is avian paramyxovirus 15, which belongs to the same family as avian paramyxovirus, the pathogen that causes Newcastle disease. This disease is not a health hazard for humans, but can be lethal to wildfowl and domestic poultry. [...]

    Smart surface enables advanced manipulation of droplets

    Original @ Phys.org – latest science and technology news stories For many years, engineers have sought to create a special kind of surface: one that can both repel and absorb liquids, and whose ability to do so—its “wetting behaviour”—can be quickly and precisely controlled. The technology would have a wide range of potential applications, from water filtration and biomedical devices to liquid optical lenses and lab-on-a-chip systems. [...]

    Smart surface enables advanced manipulation of droplets

    Original @ Phys.org – latest science and technology news stories For many years, engineers have sought to create a special kind of surface: one that can both repel and absorb liquids, and whose ability to do so—its “wetting behaviour”—can be quickly and precisely controlled. The technology would have a wide range of potential applications, from water filtration and biomedical devices to liquid optical lenses and lab-on-a-chip systems. [...]

    Scientists announce the quest for high-index materials

    Original @ Phys.org – latest science and technology news stories An antenna is a device capable of effectively transmitting, picking up, and redirecting electromagnetic radiation. Typically, antennas are macroscopic devices operating in the radio and microwave range. However, there are similar optical devices (Fig. … [...]

    A sodium surprise: Engineers find unexpected result during cardiac research

    Original @ Medical Xpress – latest medical and health news stories Irregular heartbeat—or arrhythmia—can have sudden and often fatal consequences. A biomedical engineering team at Washington University in St. Louis examining molecular behavior in cardiac tissue recently made a surprising discovery that could someday impact treatment of the life-threatening condition. [...]

    Engineered liver tissue expands after transplant

    Original @ MIT News – Health sciences and technology Tiny implantable “seeds” of tissue produce fully functional livers. [...]

    Antibiotic-releasing polymer may help eradicate joint implant infection

    Original @ Medical Xpress – latest medical and health news stories A team of Massachusetts General Hospital (MGH) investigators has developed an antibiotic-releasing polymer that may greatly simplify the treatment of prosthetic joint infection. In their recent report published in Nature Biomedical Engineering, the res… [...]

    Metal-free MRI contrast agent could be safer for some patients

    Original @ MIT News – Cancer New agent could be used for certain high-risk groups and may enable longer-term tumor imaging. [...]