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Image: Scanning electron microscope images; Copyright: Georgia Tech/Korea University

Cotton-based hybrid biofuel cell powers implantable medical devices


A glucose-powered biofuel cell that uses electrodes made from cotton fiber could someday help power implantable medical devices such as pacemakers and sensors. The new fuel cell, which provides twice as much power as conventional biofuel cells, could be paired with batteries or supercapacitors to provide a hybrid power source for the medical devices.
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Image: drainage device; Copyright: Hyowon Lee/Purdue University

Eyes drain themselves


Purdue University researchers have invented a new smart drainage device to help patients with glaucoma, a leading cause of blindness in the world, as they try to save their eyesight.
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Image: illustration of MXene materials; Copyright: Drexel University

MXene – Standing in for a kidney


For more than 3 million people around the world, kidney failure is a life-altering diagnosis. While about 17 percent of people in the U.S. with end-stage kidney disease are now getting transplants, the average time spent waiting is 3-5 years. These people spend several hours multiple times each week attached to a dialysis machine that cleans the toxins from their blood.
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Image: The structure of the new antenna for nanodiamond; Copyright: ITMO University

Magnetometers of a new generation


Scientists from ITMO University and Lebedev Physical Institute of the Russian Academy of Sciences proposed a new microwave antenna that creates a uniform magnetic field in large volume. It is capable for uniform and coherent addressing of the electronic spins of an ensemble of nanodiamond structure defects.
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Image: laser color spectrum; Copyright: Pavlov NG et al./Nature Photonics

Russian physicists upgrade cheap diode laser


Russian physicists have developed a method for drastically narrowing the emission spectrum of an ordinary diode laser, like that in a laser pointer. This makes their device a useful replacement for the more complex and expensive single-frequency lasers, enabling the creation of compact chemical analyzers.
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Image: Brain grafic; Copyright: Reference 1 © 2018 John Wiley and Sons

Making collective sense of brainwaves


The lack of tools to be able to pinpoint anomalies in large datasets that vary through time sparked a search by KAUST scientists for new efficiencies to help brain research.
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Image: Robotic arm; Copyright: The Hong Kong Polytechnic University

Robotic arm for self-help mobile rehabilitation for stroke patients


The Hong Kong Polytechnic University (PolyU) developed a robotic arm to facilitate self-help and upper-limb mobile rehabilitation for stroke patients. The lightweight device enables the patients to engage in intensive and effective self-help rehabilitation exercise anywhere, anytime after they are discharged from hospital.
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Bild: Knee cartilage implants; Copyright: / Alexmit

Material improves quality and resistance of knee cartilage implants


Researchers of Valencia’s Polytechnic University (UPV), University of Notre Dame (USA) and Technological University of Auckland (New Zealand), along with the company Zimmer, have developed a material that improves the quality and durability of the articular cartilage implants used in knee operations. According to tests carried out, the implants last up to 80% longer than the ones currently used.
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Image: A 3D organ on a chip device; Copyright: Roisin Owens

3D 'organ on a chip' could accelerate search for new treatments


Researchers have developed a three-dimensional 'organ on a chip' which enables real-time continuous monitoring of cells, and could be used to develop new treatments for disease while reducing the number of animals used in research.
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Image: Schematic of the long-range energy transfer between donor and acceptor molecules enhanced ; Copyright: Visakh Menonamaterial

Study breaks Förster resonant energy transfer distance limit


Using engineered nanocomposite structures called metamaterials, a City College of New York-led research team reports the ability to measure a significant increase in the energy transfer between molecules.
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