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VOA慢速英语:德国科学家发明了透视人体器官

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German Scientists Create See-Through Human Organs

德国科学家发明了透视人体器官

Scientists in Germany say they have used new technology to create see-through human organs. They say the technology could lead to production of three-dimensional (3D) body parts for use in transplant operations.

德国科学家表示,他们使用新技术发明了透视人体器官,他们说,这项技术可能用于生产三维人体器官,以便用于移植手术中。

The scientists are with Ludwig Maximilians University in Munich. They said they developed a process that uses a solvent to make transparent organs, such as the brain and kidneys.

科学家们在慕尼黑的路德维希·马克西米利安大学工作,他们说,他们开发了一种利用溶剂制造透明器官的过程,比如大脑和肾脏。

The German researchers use lasers in a microscope to scan the organ to be replaced. The laser light helps them see the blood vessels and every single cell inside.

德国研究人员使用显微镜中的激光扫描要替换的器官,激光帮助他们看到血管和里面的每一个细胞。

The researchers use this information to print out the structure of the whole organ. For this, they need special equipment. They use a 3D printer to manufacture the structure – one that has height, width and length.

研究人员利用这些信息打印出整个器官的结构,为此,他们需要特殊的设备。他们使用3D打印机制造结一个具有高度、宽度和长度的结构。

The researchers then load the printer with stem cells, which can become any kind of cell in the body. The stem cells act as “ink” in the printer. They are injected into the correct position, making the organ fully operational.

然后,研究人员在打印机上装上干细胞,这些干细胞可以成为体内的任何一种细胞。干细胞在打印机中起着“墨水”的作用,他们被注射到正确的位置以使器官完全运作起来。

The leader of the study, Ali Erturk, described the new technology as a major development for 3D printing in the medical field.

这项研究的领导者阿里·埃尔图克将这项新技术描述为医学领域3D打印技术的一大发展。

Until now 3D-printed organs lacked detailed cellular structures because they were based on two kinds of medical scanning technology, he explained. The two are computed tomography (CT) scans and magnetic resonance imaging.

他解释说,直到现在,3D打印器官缺乏详细的细胞结构,因为它们是基于两种医学扫描技术的,这两种技术是计算机断层扫描(CT)和磁共振成像。

“We can see where every single cell is… we can actually replicate it exactly the same,” Erturk said. “I believe we are much closer to a real human organ for the first time now,” he added.

“我们可以看到每个细胞的位置…我们实际上可以完全相同地复制它,“埃尔图克说。“我相信我们现在第一次更接近真正的人体器官了,”他补充道。

Erturk and his team plan to start by creating a transparent, bioprinted pancreas over the next two to three years. They hope to develop a human kidney within 5-6 years.

埃尔图克和他的团队计划在接下来的两到三年里创造一个透明的、生物显影的胰腺,他们希望在5到6年内创造出人类肾脏。

The researchers will first test to see if animals can live with bioprinted organs and could start tests within five to 10 years, he predicted.

他预测,研究人员将首先测试动物是否能用生物显影的器官生存,并在5到10年内开始测试。

I’m Susan Shand.

苏珊·尚德报道。

 

German Scientists Create See-Through Human Organs

Scientists in Germany say they have used new technology to create see-through human organs. They say the technology could lead to production of three-dimensional (3D) body parts for use in transplant operations.

The scientists are with Ludwig Maximilians University in Munich. They said they developed a process that uses a solvent to make transparent organs, such as the brain and kidneys.

The German researchers use lasers in a microscope to scan the organ to be replaced. The laser light helps them see the blood vessels and every single cell inside.

The researchers use this information to print out the structure of the whole organ. For this, they need special equipment. They use a 3D printer to manufacture the structure – one that has height, width and length.

The researchers then load the printer with stem cells, which can become any kind of cell in the body. The stem cells act as “ink” in the printer. They are injected into the correct position, making the organ fully operational.

The leader of the study, Ali Erturk, described the new technology as a major development for 3D printing in the medical field.

Until now 3D-printed organs lacked detailed cellular structures because they were based on two kinds of medical scanning technology, he explained. The two are computed tomography (CT) scans and magnetic resonance imaging.

“We can see where every single cell is… we can actually replicate it exactly the same,” Erturk said. “I believe we are much closer to a real human organ for the first time now,” he added.

Erturk and his team plan to start by creating a transparent, bioprinted pancreas over the next two to three years. They hope to develop a human kidney within 5-6 years.

The researchers will first test to see if animals can live with bioprinted organs and could start tests within five to 10 years, he predicted.

I’m Susan Shand.

______________________________________________________________

Words in This Story

three-dimensional – adj. having length, height and depth

transplant - v. to perform a medical operation in which an organ or other part that has been removed from the body of one person is put into the body of another person

transparent – adj. something one can see through completely

solvent – n. a liquid used for breaking down other substances

scan – v. to look at the inside of (something) by using a special machine

ink – n. a colored liquid used for writing

replicate – v. to recreate something exactly


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