Medical

Former ACerS president Delbert Day to receive Phoenix Award

By / September 15, 2010

Del Day is receiving the 2010 Phoenix Award Glass for hisdevelopment of radioactive glass microspheres. Delbert Day, a past president of ACerS, will be given the 2010 Phoenix Award as “Glass Person of the Year,” the glass industry’s top honor. The Phoenix Award is given annually to a living person who has made outstanding contributions…

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Scaffolds and host stem cells combined to improve tooth, joint replacements

By / September 7, 2010

Human molar scaffold Research centered at Columbia University is starting to improve techniques that combine ceramic scaffolds and stem cells to “grow” dental implants and limb joints. Led by Jeremy Mao, the work was carried out in the Tissue Engineering and Regenerative Medicine Lab at Columbia, and involves colleagues from the University of Missouri and…

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Quantum dots and microneedles: A possible new approach to diagnosing skin disease

By / August 30, 2010

Microneedles fabricated with two-photon polymerization:Credit: Royal Society of Chemistry I first covered ACerS member Roger Narayan’s work in the field of two-photon polymerization a little more than a year ago in a story for ACerS’ membership magazine, the Bulletin. For several years, Narayan, a professor in the Joint Biomedical Engineering Department that is connected with…

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Nanoscale field-effect transistors developed to probe cells

By / August 12, 2010

In the journal Science, a new device is described that fashions nanowires into a transistor small enough to probe the interior of cells. A Harvard press release reports that the new device is smaller than many viruses and about one-hundredth the width of the probes now used to take cellular measurements, which can be nearly…

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Polymer, bioceramic and carbon nanotubes combined for new bone scaffold

By / August 12, 2010

A bone allograft being placed into position. The University of the Basque Country (Universidad del País Vasco) reports that one of its Ph.D. students has developed a new porous, biodegradable nanocompound support for the regeneration of bone tissue. According to UPV, Beatriz Olalde, in her doctoral thesis, reported on her approach that combines polylactic acid,…

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Laser-engineered bioceramic coatings help connect bone and implant

By Martin Grolms / August 6, 2010

Samples of textures achieved with laser-engineered bioceramic coatings. These coatingscan provide a 3D topographic cue and appropriate chemistry suitable for load bearingimplant applications. Credit: Narendra Dohotre. Surfaces of artificial implants that mimic natural structures are expected to improve biocompatibility by enhancing the connection between the living bone and the surface. The challenge is to create…

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50 R&D 100 Awards given to national labs

By / July 22, 2010

Ultrasensitive Nanomechanical Transducers Based on Nonlinear Resonance, one of ORNL’s 2010 R&D 100 award winners. (Credit: ORNL.) R&D Magazine awarded DOE and other federal labs with 50 of its R&D 100 Awards. The awards, sometimes referred to as the “Academy Awards of Science,” are presented to those labs and companies that have been a major…

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Fraunhofer employs laser in new tricalcium phosphate rapid bone replacement method

By / June 25, 2010

Researchers at Fraunhofer’s Institute for Laser Technology say they are getting excellent results from a bone replacement system that uses a paste of polyactide (PLA) and tricalcium phosphate that is melted by a fine laser to build up layers of material that can provide a strong and precise fit. This new approach was developed under…

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Zhong-Lin Wang takes nanoscale piezo energy scavenging to heart

By / June 11, 2010

ACerS member Zhong-Lin Wang continues to make interesting progress on developing nanowire power generators and other energy-scavenging devices, and recently has demonstrated a nanogenerator that can be powered by the motion of a beating heart or the flexing of diaphragms and lungs. When I last wrote about Wang in early 2009, he was demonstrating a…

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Nanoscale discovery said to open new possibilities for tiny glass electrodes in microfluidic devices

By / May 31, 2010

A team University of Michigan researchers say they have figured out a way to nondestructively use glass as an electrode in certain microfluidic devices. Alan Hunt, a biomedical engineering associate professor at the university, and his research team accidentally discovered a way to get an electric current to pass nondestructively through a thin section of…

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