A new method was developed for 3D printing living microbes by enhancing biomaterials by LLNL scientists.

"Lawrence Livermore National Laboratory researchers suspended bacteria in photosensitive bio-resins and “trapped” the microbes in 3D structures using LED light from the LLNL-developed Stereolithographic Apparatus for Microbial Bioprinting 3D printer. The projection stereolithography machine can print at high resolution on the order of 18 microns — nearly as thin as the diameter of a human cell. Credit: Illustration by Thomas Reason/LLNL" (SciTechDaily: https://scitechdaily.com/new-method-developed-for-3d-printing-living-microbes-to-enhance-biomaterials/)

The researchers of the Lawrence Livermore National Laboratory (LLNL) have developed a system. That uses LED light for making 3D structures by using living bacteria. The ability to use the living cells for making 3D structures might seem very ordinary. But that system can use for creating 3D printed organs for people, who need them. The system uses LED light for controlling the form of the growing cell culture. 

Today we know how to clone the cells. And making clones of the things like skin and retina cells is quite easy. The problem is how to make the clone of the organs that have a 3D structure. The thing that causes the problem is that the blood vessels must conduct to the organ. 

One of the easiest ways is to make the 3D network structure where the cells of organs are grown between the network made of hollow tubes. And the blood vessels will be grown in that network-looking structure. 

People can read details of that technology from the article below this text. There are many ways to benefit things like LED-light and lasers for creating 3D-printed organs. The artificial organs are created by using the cloned cells. Can save the life of the victims of accidents and very sick people. 

1) The laser can use to make the supporting structure by using the melting materials. The idea is that the cell culture is made over the melting structure. That is offering the nutrient for those cells. There can be tubes in that structure and those tubes can grow the cells of blood vessels. The feeding structure will turn to the platform of the new organ. And that is the most conventional version for making artificial organs. 

2) Another version to make artificial organs is simply to make the bite of the homogeneous cells. Then the nanotechnical drills are making the channels for the veins in that organ. And maybe this technology allows creating things like liver. 

3) The LED light can control the area where is a nutrient in the gel where the cell cultures are made. The idea is that the laser LED  is burning the nutrient away from the nutrient gel. And that thing controls the direction of the growth of the cells. 

Maybe those things can save human lives somewhere in the future. When we are thinking about things like stem cell therapy there is one solution for getting stem cells. That solution is that when every person is in the womb. 

The doctors will take the stem cells from our bodies. And then every individual in the western world has their stem cell bank. Or otherwise, the person can clone and the fetus can store in liquid nitrogen. So we would have the backup body in the laboratories stored in the liquid nitrogen. 

https://scitechdaily.com/new-method-developed-for-3d-printing-living-microbes-to-enhance-biomaterials/

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