Scientists managed to grow human ears on the backs of mice

Ученым удалось вырастить человеческие уши на спинах у мышей

Scientists from the Sichuan University using 3D printing could grow without surgery a human ear on the back of a mouse. According to “Popular mechanics”, presumably this technology can be used for cultivation and other parts of the body.

New technology allows the use of 3D printing within the body. First, scientists have introduced the bio-ink particles of the hydrogel in the back of mice and then using near-infrared radiation inflicted on them contours in the shape of an ear. This radiation has linked the particles together and reproduced layers of the structure in the form of ears. Over the next months, the cartilage cells grew around the hydrogel structures, reminiscent of cartilaginous structures of the ear. Thus in mice was not observed any side effects.

The study’s lead author Maling GOU claims that this technology can help people with microtia – a pathology that prevents the proper development of the ears. According to Derek Rosengleich from McGill University, the technology can also be used to repair damaged cartilage, fingers, feet or elbows. But, for example, defects in the femur, according to him, the fix will be more difficult as this form of infrared radiation enters the body only at two centimeters.

GOU hoped that in the future the technology could be improved and it will allow to grow complex organs such as the heart or lungs.

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