Scientists have developed a new method of printing of living cells





Scientists from Houston reported that developed low-cost method of printing of living cells, with the new technology provides almost one hundred percent of their survival. The new method is similar to the modern woodcut, which in turn is an ancient technique of engraving on wood, which has its origin in the Far East. New manufacturing process allows you to print a two-dimensional profile of living cells on virtually any surface.

The problem of current printers for living cells is their low economic efficiency. First, the cost of these printers can be tens of thousands of dollars, and secondly, printed on these printers cells survive only in 50 percent of cases. However, new technology, according to its creators, a cost of about $ 1.

Scientists note that as the technology of cell block printing (Block-Cell-Printing) is still only in its infancy, it has a number of certain limitations: for example, the process of creating cells using this technology is much longer and is more complicated than traditional printing methods. Furthermore, the technology is not yet possible to print three-dimensional cells . However, scientists say that the method already allows printing cellular structures HD 5 micrometers distance between cells, and can also be adapted for the production of a variety of cells, all of which will show a higher survival rate.

“Cell printing is now used in a variety of ways – from drug development to learning and tissue regeneration, cell function and intercellular communication,” – says Dr. Lyndon Qin, the head of the project at the Institute of methodological research in Houston.

“Such studies are possible only if used live and active cells. While 50-80 percent – a typical survival rate of cells printed using ink-jet printing method. However, in the case of block-printing, we were able to achieve almost wholly created cell survival. We believe that today’s modern technologies are not suitable for the job. Printed on blast cells show very high levels of damage and death. ”

Developed printing technology uses a microfluidic physics, which involves placing live cells in J-shaped silicone mold. Form the shape, one after another, they fill each of them and thus create a cell line. Each of these lines is determined by the production process and ultimately creates a network structure. After loading the mold begins printing process very similar to the assembly of the designer. Hence, the name of such printing technology living cells.

Check block printing technology Dr. Qin spent in manufacturing grid structure of brain cells as well as in the study of the growth of cancer cells.

“By us cellular communication can be useful in future studies of the signal transduction between neurons, as well as the study of axonal regeneration (basic processes of neurons),” – said Qin after successful test block print of brain cells.

“All this may be helpful to an understanding of Alzheimer’s disease and other neurodegenerative diseases. Additionally, this technology may find its application in the study and installation stages of cancer. ”

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Tags: 3D-printing , Bioengineering .


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