【英语时差8,16】药液植入镜片新技术

Modern medicine is all about precision. When you have a cold, you want the virus gone but everything else in your bloodstream untouched. The perfect stitches would leave absolutely no scar behind, and so on. It turns out that precision is especially difficult when it comes to treating your eyes. For example, you might think that putting in a eye-drop gets right to the problem, but in fact most of it washes off. If the eye drop is medicated, not only does the stuff that washes off miss your eye, it can get in your blood and cause problems of its own. How can we be more precise? One way has been proposed by researcher Anuj Chauhan and his team at the University of Florida in Gainesville. Chauhan has made a contact lens that delivers medicine to the surface of your eye. The team first made nanoparticles, which are super-small spheres only fifty nanometers wide, of a common drug called Novocain. They added these tiny droplets¹ to a polymer from which you can build contact lenses. The result? A lens somewhat thicker than normal–but still entirely² transparent³. And, in water, the new lenses were found to slowly leak the nanoparticles of medicine for eight to ten days. That means if you had them in your eyes, you would be receiving a small, regular dose of your medication directly to the spot where it’s needed. These kinds of drug-dispensing lenses are still in the development stage, but the first steps look promising⁴. It may soon be the case that gentle eye care comes not in a bottle and dropper, but in a lens.

1 droplets   

n.小滴( droplet的名词复数 )

参考例句：

• Droplets of sweat were welling up on his forehead. 他额头上冒出了滴滴汗珠。 来自辞典例句
• In constrast, exhaled smoke contains relatively large water droplets and appears white. 相反，从人嘴里呼出的烟则包含相当大的水滴，所以呈白色。 来自辞典例句

2 entirely   

ad.全部地，完整地；完全地，彻底地

参考例句：

• The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
• His life was entirely given up to the educational work. 他的一生统统献给了教育工作。

3 transparent   

adj.明显的，无疑的；透明的

参考例句：

• The water is so transparent that we can see the fishes swimming.水清澈透明，可以看到鱼儿游来游去。
• The window glass is transparent.窗玻璃是透明的。

4 promising   

adj.有希望的，有前途的

参考例句：

• The results of the experiments are very promising.实验的结果充满了希望。
• We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。