导读：爱荷华州爱荷华市韦斯特高中的一名毕业班学生泰勒·达西亚(Dasia Taylor)发明了一种可以改变颜色的医用缝合线，让病人知道伤口是否感染。她也成功入围美国雷杰纳隆科学奖(the Regeneron Science Talent Search)提名。

 

17-year-old Dasia Taylor was named one of 40 finalists in the Regeneron Science Talent Search(STS)（雷杰纳隆科学奖）, the nation’s most famous science and math competition for high school seniors.

Dasia’s sutures（缝合线） work by changing color if the patients pH level changes, indicating an infection. PH is one of the most common parts of wound healing, Dasia said. It changes very quickly, so it’s one of the fastest ways to recognize infection.

So, she started experimenting with root vegetables. "I found that beet(甜菜) changed color at the perfect pH point," says Taylor. "That's perfect for an infected wound. And so, I was like, 'Oh, okay. So beet is where it's at’. Beet provided the perfect dye for her invention, changing from bright red to dark purple when a surgical wound becomes infected. After more than a year of research, Taylor is working on getting her sutures patented.

本文摘选奇速英语时文阅读原创部分内容。

本文难句解析

• infection / ɪnˈfekʃn / n. 感染
  例句：The risk of infection is higher among children. 儿童感染的风险更高。
• dye / daɪ / n. 染料
  例句：Today I'll talk about the characteristics of dye. 今天我们讨论染料的特性。
• patent / ˈpætnt/ v. 获得专利权 n. 专利权
  例句：He patented the design of new types of robots. 他为新型机器人的设计申请了专利。
• She imagines these sutures being used in developing countries where they can save lives and money.
  她设想在发展中国家使用这些缝线可以挽救生命和金钱。being 现在分词作后置定语，修饰these sutures；where引导定语从句，修饰先行词developing countries。
• The equity part of my brain and all the work that I do around equity was like 'That shouldn't be happening.
  我大脑中的公平部分和我围绕公平所做的所有工作都像是‘这不应该发生’。that引导定语从句，修饰先行词all the work。
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