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INDICS > Press Center > Top News

3D printing creates super-soft structures that replicate brain and lungs

By  : INDICS Operator Updated  :   2018-01-29 13:47:58


Source: Imperial College London

A new 3D printing technique allows researchers to replicate biological structures, which could be used for tissue regeneration and replica organs.

Imperial College London researchers have developed a new method for creating 3D structures using cryogenics (freezing) and 3D printing techniques.

This builds on previous research but is the first to create structures that are soft enough to mimic the mechanical properties of organs such as the brain and lungs. Their technique, created in collaboration with Kings College London, is published in the journal Scientific Reports.

At the moment we have created structures a few centimetres in size, but ideally we’d like to create a replica of a whole organ using this technique.

–Zhengchu Tan

Being able to match the structure and softness of body tissues means that these structures could be used in medical procedures to form scaffolds that can act as a template for tissue regeneration, where damaged tissues are encouraged to regrow.

Regenerating damaged tissue by ‘seeding’ porous scaffolds with cells and encouraging them to grow allows the body to heal without the issues that normally affect tissue-replacing transplant procedures, such as rejection by the body.

The use of scaffolds is becoming more common and varied in its applications, but this new technique is special in that it creates super-soft scaffolds that are like the softest tissues in the human body and could help to promote this regeneration. In particular, there might be future potential in seeding neuronal cells; those involved in the brain and spinal cord.

                                             

The researchers tested the 3D-printed structures by seeding them with dermal fibroblast cells, which generate connective tissue in the skin, and found that there was successful attachment and survival.

This success, alongside previous research, could lead to further possibilities around the growth of stem cells, which is medically exciting due to their ability to change into different types of cells.


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