Britain uses human embryonic stem cells for 3D printing for the first time

UK uses human embryonic stem cells for 3D printing for the first time Extend 3D printing to human embryonic stem cells. This breakthrough makes it possible to use human embryonic stem cells to "build" human tissues and organs for transplantation. The printed structure can also be used for drug testing to speed up the improvement of the testing process. Related papers were published in the journal "Biomanufacturing" published on February 5. In recent years, 3D printing methods have gradually developed into the field of bio-manufacturing. Jason King, commercial development manager of Roslyn Serrabo Stem Cell Technology, said: "Usually, cells grown in the laboratory grow in a two-dimensional plane, and only a few cells can be printed in three dimensions. Human stem cells are too sensitive to use this Way to control. We are the first in the world to print and culture human embryonic stem cells. "The key issues in the printing process are controllability and harm reduction, so as to ensure the developmental ability and normal function of cells and tissues. Human embryonic stem cells are derived from the "stem cell line" produced in the early stages of the embryo. There is no clear direction of development, and they can differentiate into any type of cell in the human body. The research team developed a vacuum valve-type cell printer. Cells were packed into two separate containers of the printer, and then printed on a single plate in accordance with a pre-programmed program. The printer fully considers the sensitivity and fragility of human embryonic stem cells and can print out highly active cells. After the human embryonic stem cells are printed, they have to undergo a number of tests, such as testing their activity to see if they can differentiate into different types of cells; testing the printing density, characteristic attributes and distribution of cells to evaluate this The accuracy of the printing method. "We found that this vacuum valve printing method is very gentle, enough to maintain the developmental ability of stem cells, and it can also accurately shoot the same size sphere. More importantly, the printed human embryonic stem cells maintain their pluripotency, but also Differentiate into other types of cells. ”Will Wenmiao Shu, a co-author of the paper and Heriot-Watt University in the UK, said:“ This method uses air pressure to drive the cells, which can be controlled by switching the micro vacuum tube. Changing the nozzle diameter, inlet air pressure, or the time to open the vacuum tube can precisely control the number of ejected cells. "Shu also pointed out that by printing the 3D structure generated by human embryonic stem cells, we can create a more accurate model of human tissue, which is , Toxicity testing is very useful, because most drug development is aimed at human diseases, it is more meaningful to experiment with human tissues. Jin said: "This is a scientific advancement. We hope that this advancement will bring long-term great value, provide people with reliable drugs without having to use animals for drug testing, provide organs for transplantation without donation, and be able to Eliminate the problems caused by organ rejection and immunosuppression. "

Measuring Spoon Set

High quality Measuring Spoon Set ,suitable for kitchen ,and useful for cooking and baking ,different capacity can help you cook more delicious food. Some of our measuring spoon set with the silicone handle ,which it more comfortable when use it.

Measuring spoon set can combine the cup set or the Mixing Bowl Set to sell. Useful for baking or cooking.

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Description of Measuring Spoon Set

 

Material:SS201/SS304

Handle :some items can add silicone handle

Finishing: Satin polishing ,Mirror Polishing ,Color painting

Logo: Laser logo, Etching logo, Silk printing logo, Embossed logo, Decal logo

MOQ : 2000 PCS

Packaging : White box, Mail box or Customized package

Sample Time : 7~10 days

Lead Time :60 days after have the deposit

Payment: T/T ,L/C or others

Payment term: 30% deposit before production and 70 % balance against the copy B/L

 

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Measuring Spoon

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