3D printing technology is a kind of rapid prototyping technology. It is based on digital model files and uses a binder material such as powder metal or plastic to construct an object by layer-by-layer printing. 3D printer is a kind of machine for rapid prototyping technology. At present, there are fast 3D printers that print 100 times faster than ordinary printers. There are also synthetic 3D printers that use 10 different materials to print objects. Here are some people who will enter people. A popular 3D printing technology in the future.

3D printing food

The 3D food printer simply puts the ingredients and ingredients into the container, enters the required recipes, and “prints” the food through the accompanying professional software. Cornell University in New York has developed a 3D food printer that prints a variety of foods that are no different from hand-made foods. Assembling the 3D food printer into the army, you can enrich the variety of the army's food, create more personalized food, officers and soldiers can choose whatever they want or make recipes, print delicious food such as burgers, gnocchi, clams, bread sticks, etc. The links of finished products solve the problems of pollution and preservation in food processing, transportation and packaging, and greatly improve the logistics support efficiency of the troops. At the same time, 3D food printers do not generate smoke, which solves the problem of exposure targets due to smoke when performing combat missions.

3D printing pills

In early 2015, the US Food and Drug Administration (FDA) approved the first 3D printed pills. The drug is used to treat seizures and was developed by Aprecia Pharmaceuticals and is expected to be available early next year. The company also plans to print other drugs in 3D, the company claims, allowing the drug to be stratified in precise doses. In the broader medical arena, researchers ultimately hope that 3D printing will help print customizable medicines that are tailored to the needs of individual patients.

Metal 3D printing remodeling jewelry industry

Metal 3D printing is a new trend in the development of industrial 3D printing. In the next three years, equipment prices and material prices will drop sharply. The precision and stability of equipment will be significantly improved, and the technology will mature. Direct printing of metal molds and individualized metal products will be a major trend. Although the metal 3D printing boom has emerged in advance, it will take another 5 to 10 years for the popular application. The popularization of metal 3D printing depends on two aspects: first, whether the technology is mature, the stability and precision of the equipment; second, the price of materials and equipment is at least 30%-50%. At present, 3D printed gold jewelry has been released. Lionel T Dean is a product artist and the founder and creative director of a large British company. He has been engaged in creative research in digital design and manufacturing technology for more than a decade, and has a vision in the field of 3D printing art and design. As a "future creator", he said that digital production and 3D printing may reshape the jewelry industry.

3D printing compound

A common criticism of consumers about 3D printers is that they can only print simple plastic models. The situation is changing, and researchers are working hard to increase the materials available for 3D printers, although the growth rate is not quite satisfactory. A research team at the Massachusetts Institute of Technology's Computer Science and Artificial Intelligence Laboratory has confirmed that their 3D printers can print a single object using 10 different materials simultaneously. The printer costs less than $7,000 and is made using off-the-shelf components. In contrast, existing multi-material 3D printers are typically limited to three materials and cost as much as $150,000.

3D printing repair nerve

It is difficult to regenerate after nerve injury, so nerve damage is often permanent. American researchers have printed a special structure in 3D that may help the damaged nerves to repair themselves. The team printed a silicone structure in 3D that provides a scaffold for damaged nerves to attach to growth. There are also chemicals in the silicon structure that promote motor and sensory nerve regeneration. The printed structure was implanted into a nerve-damaged rat and ligated to both ends of the severed sciatic nerve. The rats showed the ability to walk again in about 10 to 12 weeks. To make a suitable nerve-grown silicon lead stent, the researchers used a 3D scanner to scan and simulate a structural model of the rat sciatic nerve.

3D printing reshapes living tissue

A Japanese company invented a 3D bioprinter that produces a living tissue by agglutinating living cells. They plan to use tissue culture to test new products, wait for future medical breakthroughs, and use the technology's future iterative products and stem cell cultures to print transplanted organs. According to reports, in September 2015, the company created a tubular tissue structure using stem cells, and many copies of the printed structure were transplanted into the rat aorta.

At the same time, 3D printing technology is also widely used in the field of biomedicine. It can print a variety of human structures such as bones, teeth, artificial livers, artificial blood vessels, etc. The individualized organs that are "tailored" are more precisely matched to the patient's body. Improve the success rate of surgery. Applied to military medical assistance, the technology prints organs that meet the needs of the wounded and sick, changes traditional treatments, and helps injured athletes return to a healthy state of health. For 3D printing of artificial blood vessels, it can print only 20 micron thick blood vessels, and it is expected to recreate a few millimeters thick skin. Researchers at the Fraunhofer Institute for Laser Technology in Germany have successfully used 3D printing technology to create artificial blood vessels. This technological breakthrough is expected to be widely used in the medical fields of healing skin wounds, artificial skin reconstruction and artificial organs. Patients with major accidental injuries, extensive burns, or tumor resections often need to recreate wound skin. Current medical techniques can only be artificially recreated for skin thickness (dermis and epidermis) not exceeding 200 microns, and for those including subcutaneous tissue. A millimeter-thick intact skin system cannot be recreated because it involves vascular tissue and no nutrient supply of blood vessels. Artificial skin over 200 microns cannot survive. To this end, the interdisciplinary team led by the Fraunhofer Institute for Laser Technology undertook a 3D project in the European Union to develop 3D printing technology for the manufacture of artificial blood vessels.

China's 3D printing vascular project has made a major breakthrough. The 3D biovascular printer was successfully developed by Sichuan Blu-ray Inno Biotechnology Co., Ltd. According to reports, the core technology of 3D bio-printing is bio-brick, a new and accurate stem cell culture system with biomimetic function. It is a "bio-ink" composed of seed cells (stem cells, differentiated cells, etc.), growth factors and nutrients. It is printed in combination with other layers of materials, and is processed after printing to form a physiologically functional tissue structure. .


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