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(单词翻译:双击或拖选)
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
The common method of closing a surgical1 incision2 is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging, and a poor job can lead to tissue warping3. Synthetic4 adhesives5 have been tried instead of sutures, but they also have problems. So researchers at North Carolina State University have turned to two totally unrelated objects—mussels and inkjet printers. They published their research in the April edition of the Journal of Biomedical Materials B.
Mussels attach themselves to rocks in the ocean with a biodegradable glue. Scientists extracted the sticky proteins and made them even stickier by adding iron. Then the scientists thought, we need a precise way to add iron and then apply the glue. The answer: piezoelectric inkjet printers. They spit out droplets6 at a time in a precise fashion without heating up. So researchers used inkjet technology to carefully mix the mussel solution and iron together and then deposit the glue in a chosen design. They say they still have work to do to make the solution even stickier. But they imagine a future small hand-held printer-like system that will stitch you up with biodegradable glue deposited in a perfect line.
Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.
1 surgical | |
adj.外科的,外科医生的,手术上的 | |
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2 incision | |
n.切口,切开 | |
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3 warping | |
n.翘面,扭曲,变形v.弄弯,变歪( warp的现在分词 );使(行为等)不合情理,使乖戾, | |
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4 synthetic | |
adj.合成的,人工的;综合的;n.人工制品 | |
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5 adhesives | |
黏合剂( adhesive的名词复数 ) | |
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6 droplets | |
n.小滴( droplet的名词复数 ) | |
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