Use of bioabsorbable polymers as a medical device is moving to what I think is an amazing new level. Abbott vascular announced successful initial tests of a full bioabsorbable stent used to prop open diseased coronary arteries. The device is called ABSORB because it is completely absorbed back into the body after it restores blood flow, and the blood vessel heals. Six month results for the first 30 patients in the Abbott trial showed similar rates of success as metal stents. The new stent is made of polylactic acid, which is widely used in dissolvable sutures and anchor screws. Engineers in Japan are also rapidly developing mechanical applications for PLA.
Oak Ridge National Laboratory has developed a surface preparation method to improve joining carbon composites with aluminum, with potentially far-reaching ramifications for high-volume industrial applications.
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