英国科学家研发出3D打印眼角膜有望无限量供应_BEC初级作文

英国科学家研发出3D打印眼角膜有望无限量供应

歌手姚贝娜去世后，捐献眼角膜帮助三名患者重见光明，感动了无数人。但全球角膜移植供体紧缺仍是不争的事实。如今，英国科学家采用3D打印技术，10分钟就可以打印出符合不同患者特点的眼角膜，未来有望无限量供应。

Human corneas have successfully been 3D printed for the first time by scientists at Newcastle University in England.

英国纽卡斯尔大学的科学家首次成功采用3D技术打印出人类眼角膜。

英国科学家研发出3D打印眼角膜有望无限量供应1

By mixing stem cells from a healthy donor cornea with alginate, a gel derived from seaweed, and collagen, researchers managed to create a "bio-ink" solution that can be printed.

科学家通过将来自健康供体角膜的干细胞与藻盐酸（来自海藻的凝胶）和胶原蛋白混合在一起，创造出可以打印的“生物墨水”溶液。

This bio-ink then would be successfully expelled out of the printer in concentric circles in the shape of a cornea in less than 10 minutes, according to a paper published in Experimental Eye Research.

之后，3D打印机可以把这种生物墨水成功打印成眼角膜的同心圆状，整个过程仅需10分钟。这项研究成果发表在《实验性眼科研究》期刊上。

"Our unique bio-gel -- a combination of alginate and collagen -- keeps the stem cells alive while producing a material which is stiff enough to hold its shape but soft enough to be squeezed out the nozzle of a 3D printer," said lead researcher Che Connon in a press release.