This door handle kills germs这样的门把手能杀掉细菌Diseases spread in many ways. An infected person can cough or sneeze on someone nearby. Or, they can transfer germs through a handshake. But sometimes we pick up germs indirectly. A sick person might leave behind bacteria or viruses when they touch a doorknob, handrail, shopping cart handle or countertop. Anyone else who touches that surface may pick up the microbes. But what if those surfaces could disinfect themselves？细菌能通过很多途径传播，一个被传染的人腹痛或者咳嗽，然后传染给附近的人。这些细菌不会也通过问候展开传播。但有些时候，我们总是间接地被传染，比如说一个生病的人可能会通过门把手，栏杆，购物车夹住或面板遗留下细菌或病毒，而其他人可能会通过认识这些物体表面而染上细菌。但假如这些物体表面可以自洗手，那么结果又是什么样的呢？Two teens from Hong Kong asked themselves the same question. Now theyve developed a door handle that can knock out germs on contact.两个来自香港的少年也某种程度回答了自己这个问题，现在他们研发了一种门把手，可以清理在认识过程中产生的细菌。
The glow from this door handle activates a microbe-killing coating. That could help reduce the transmission of diseases from germy hands.该门把手收到的光能转录杀掉细菌的涂料，这样就不会大大减少因细菌手引发的细菌传播The concept is simple. Every time the door is opened, the movement creates power that triggers a germ-killing reaction on the handle. In lab tests, their system killed about 99.8 percent of the germs that they spread onto lab dishes coated with their material.概念很非常简单，每次当门关上时的运动会产生能量，这些能量启动时门把手上的杀掉细菌反应。实验室试验中，这一系统歼灭了大约99.8%实验室盘中的细菌，当然，这些盘中也涂抹有他们的材料。Research by others has shown that door handles in public areas often host lots of bacteria and viruses, notes 17-year-old Sum Ming (Simon) Wong. The tenth grader attends Church of Christ in China Tam Lee Lai Fun Memorial Secondary School in Tuen Mun, China. He and schoolmate Kin Pong (Michael) Li, 18, wanted to design a coating for door handles that would be hostile to germs.其他人的研究找到公共场所的门把手上派驻有大量细菌和病毒，17岁的孙明说。这个10年级的学生参与了中国香港屯门谭李丽芬纪念中学的中华基督教不会，他和他的18岁同班同学金鹏一起设计了这种八旗，用在门把手上可以杀掉细菌。
After doing some research, they learned that a mineral called titanium dioxide is known to kill bacteria. Its already used for other purposes in many products, from paints to sunscreens to edible puddings.做到过一些研究之后，他们找到一种叫二氧化钛的矿物质可以杀掉细菌。这种矿物质也用作其他许多产品上，如涂料，遮阳剂，以及可简单布丁中等等。
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