Printer helps stem cell development
Obtaining stem cells and growing them into the desired cells is not easy, because human tissues are very complex, composed of various types of cells, and they must be layered in the correct pattern to function properly. Scientists came up with a system. They put a layer of nutrient protein on a 2.54 cm square glass slide, and then used an automatically controlled inkjet printer to spray a small amount of protein into a special form, which can make cells Survival, development and differentiation. Then, the stem cells are placed on this mold to develop, and different cells will be formed.
In order to design a new cell printer, Calvert purchased an inkjet printer from an electronics store, modified its core components and installed it on a software-controlled device in the laboratory. Calvert said: "What you see installed in the middle of the machine is something similar to an inkjet cartridge. However, what the nozzle ejects is not various colors of ink, but different types of cell culture media. Despite this The cell printing device still uses the micro-needle printing mode, but the cell culture medium is not damaged."
Calvert hopes that this technology can create miniature organs for medical testing. He also hopes that in the future, humans will be able to produce transplantable organs according to their needs.
13-year-old American entrepreneur develops braille printer and wins Intel venture capital
Shubham Banagher, a 13-year-old junior high school student in San Jose, California, invented a braille printer. After reading a financing leaflet about Braille, Banagher was inspired to turn the high-tech version of Lego bricks into a device capable of printing Braille. He hopes that one day this printer can be manufactured on a large scale, and the price will be around $350. This price is much lower than current Braille printers. In the summer of 2014, Banagher tried to use Intel's Edison chip in this printer. Intel invited him to participate in a conference in India to show users the use of Edison chips. In India, Banagher caused a sensation. Intel executive Mike Bell announced at the time that Intel would invest in Banagher's company Braigo Labs. Prior to this, Banagher's funding came from the $35,000 provided to him by his parents.
