What is Nano? Application of nanotechnology in Mona Mask?
December 4, 2020
Nano is a in the current superlative technology. The advent and development of this technology has created a large field in the development process. What is Nano? Technology of technology to human life and health like? How is Nano applied in Mona Mask page? Let’s find out through the article below:
NỘI DUNG BÀI VIẾT
- 1. What is Nano? What is Nano art?
- 2. How to make nanomaterials?
- 3. Application of nanotechnology in human life.
- 4. Maybe you do not know the nano technology applied in Mona Mask.
1. What is Nano? What is Nano art?
Nano is the type of type of structure, fiber, pipe or is plate. We have a small size, only gap from 1 – 100 nanometers. Therefore, nanotechnology is considered as a technology related to the design, analysis and fabrication of applications, devices, systems by control style and size in the nanometer rule.
Nano technology has been discovered and developed since the early 21st century by a series of analytical devices, most notably the detector microscope capable of observing atomic or molecular size. However, in reality, nanoparticles have existed for millions of years in the natural world. Since the 10th century, nanoparticles have been used by humans in making glass and ceramics with different colors and sizes, but they are not known.
2. How to make nanomaterials?
There are many methods of fabricating nanomaterials, of which 4 are the most popular methods that are highly appreciated by experts:
Wet chemical method: This method includes hydrothermal, sol-gel, co-precipitation. Solutions containing different ions are mixed together in an appropriate ratio, under the action of temperature, pressure, pH … the nanomaterials will be precipitated. After this filtration process, dried, we will obtain nano-sized materials.
Nanomechanical method: Including actions such as grinding, grinding, and mechanical alloying. With this method, the materials in the powder form are ground to the smallest size. The commonly used crusher is the planetary ball mill, the rotary mill.
Heat evaporation methods: Including lithography, vacuum deposition, physical and chemical methods. This method is used in making thin films or as a surface coating. In addition, this substance is also used to fabricate nanoparticles by scraping nanomaterials from the shield.
Gas phase method: including pyrolysis, electric explosion, laser burning, high temperature evaporation, plasma. The principle of this method is to form nanomaterials from the gas phase.
3. Application of nanotechnology in human life.
3.1. Nanotechnology saves lives
Medical is by far one of the biggest uses of nanotechnology. In dealing with cancer, for example, a variety of methods have been tested to limit tumors from growing and destroy them at the cellular level. Nanoparticles are inserted into tumors inside the body, then are increased in temperature by infrared lasers shining from the outside, finally able to destroy other tumors.
Not stopping there, researchers also carry out a very special nanorobot project. These robots are very small in size, go deep into the body and bring medical treatment where it is most needed. Such direct delivery of the drug increases the likelihood of a successful treatment, while minimizing the unnecessary risks.
In the future, nona will help people fight off evil cancers, even the most difficult to cure diseases like brain cancer. According to some information, with nano, doctors can treat brain cancer without having to open the patient’s skull or any other toxic chemotherapy.
*Treatment of heart damage
When the body is injured, reflexively there will be a large number of growth factors that converge on receptor generation, promoting lysis (in other words, DAN synthesis) in the damaged area. they recover. Northwestern Evanston University chemist Samuel Stupp injects nanoscale molecules into the body and they self-assemble into fibers with sizes less than 10 nm, thin, long on the surface. face of the affected area.
Then, about eight amino acids were added to allow the nanofibre fibers to bind to a protein. When protein combines with many different substances in the body to form a growth factor that stimulates the growth of blood vessels, restoring the damaged areas.
This method has also been tested on 20 rats by Stupp and pharmacist Jon Lomasney of the University of Medicine Feinberg (Chicago). They gave 20 rats a heart attack to create damage, then took 10 of them with nanotechnology as mentioned above, the remaining 10 were not treated or just used natural growth factor. As a result, a month later, 10 rats treated with nanotechnology, the heart was 100% active, the remaining 10 rats worked only 50% of the heart’s activity level before the damage. Repeat these techniques in rabbits with similar results. The most distinctive feature of the above experiments is that the nanofibers create “meshes” for the new cells to “knit” into the “new carpet” instead of the damaged “old carpet”.
*Treatment of erectile dysfunction
The common drugs for erectile dysfunction (RLC) work by the following mechanism: increasing NO, dilating the smooth muscles of the cavernous arteries, causing blood to flow into it, blocking the entire venous system under the white bag. allow blood to drain, blood stasis in place and cause an erection. However, when high, NO can cause vasodilation in many places, causing headaches, flushing, nasal congestion, stomach disorders, visual disturbances, the most dangerous being loss of vision and hearing. . For people with pre-existing cardiovascular disease, heart failure and death may occur.
Medicines for erectile dysfunction are often used in the elderly, who have associated cardiovascular disease, so side effects can interfere with people wanting to take them. In addition, the onset of effect is quite slow, about 30 minutes to 1 hour, which takes away sexual interest.
To eliminate this, the Einstein School of Medicine at Yeshiva College of Medicine has developed a form of nano medicine for external use consisting of a nano layer encasing NO (Type 1); or nano coated with NO + drug RLC cailis (Type 2); nano filter for NO + sialopin RLC drug (form 3). Then bring these 3 drugs to use on old mice. The results showed that 71.4% of the group of mice used form 1; 100% of the group of mice using forms 2 and 3 improved significantly RLC status. The effective starting time of the three drugs mentioned above is only a few minutes of timely satisfaction of sexual interest.
Dr. Mckendr, Joseph Ndieyira, Moyu Watari of London Nanotechnology Center (LCN) used a cantilever chain, just as small as a hair shaft covered with mucopeptides to check the process that occurs when vancomycin antibiotics are exposed to viruses, bacteria. The results showed that when the antibiotic binds to the bacteria, a pressure is placed on the surface of the bacteria, breaking the cell wall. However, there will also be mutated bacteria, which are able to remove all hydrogen bridges from the cell wall structure, making it difficult for antibiotics to penetrate, so breaking the cell wall is very unlikely. They eventually become resistant viruses and drug-resistant viruses are difficult to defeat.
Overall, this study has more or less demonstrated the effectiveness of silicon cantilevers in detecting bacteria’s mechanism of action and drug resistance. From there opens the way to find new antibiotics against viruses.
3.2. Nanotechnology is used in electronics.
Referring to nanotechnology can not help but mention the scientific projects that are being carried out by leading professors in the laboratory, the world’s most advanced and advanced technologies have been formed here. However, in fact, you are using some products of nanotechnology right now, such as computer mouse, keyboard, phone … also covered with an antibacterial nano layer already.
In particular, nanotechnology also plays a significant part in the electronics field, especially energy technology. Future nano batteries will be made in the nanowhiskers style. This structure will cause the battery terminals to have a much larger surface area, helping them store more power, while shrinking the size of the battery.
3.3. Nanotechnology is used in apparel.
Since the beginning of 2000, the fashion industry has turned to a new page when applying nanotechnology on some special fabrics such as sportswear, deodorant underwear. The use of nano-silver has helped kill bacteria that cause unpleasant odors in clothes. These silver nanoparticles attract bacteria and destroy their cells.
Not only that, but the nanoparticles can also turn your shirt into a portable electric power station. Using natural energy sources like wind energy, solar energy plus nanotechnology, you can already charge a smartphone. This idea does not stop there, scientists also want to create sails made of nanomaterials with the ability to convert natural energy into electricity. However, this is still in beta.
3.4. Nanotechnology in nature.
It is also true that applications from nanotechnology can occur in nature. For example, the application of nanoparticles on a certain fabric prevents us from absorbing rain and dust. You can imagine this is like when rain falls on the surface of the lotus leaf, the surface of the lotus leaf is covered with a special coat of nanometer size, which makes water droplets unable to penetrate or stick on the leaf surface. lotus.
Another example is the gecko’s toe. The research team Robert Full of the University of Berkeley has found that each toe of the gecko is covered with a layer of hair of microscopic size that helps them stick to smooth surfaces. Simulation of that, the scientists created pads with micro-nanotubes to help climbers better grip on slippery cliffs.
3.5. Nanotechnology in food.
Nanotechnology is very small-scale research, analysis, and design. A question arises: If we use nanotechnology to make food, how much is enough to make us full? Luckily that doesn’t happen, nanotechnology has only changed the way we eat everyday foods.
Scientists have conducted experiments to alter foods at the atomic and molecular levels. This will help us to enjoy dishes with extremely strange flavors with high nutritional value.
Not only that, but nanotechnology also helps food spoil longer by creating food containers with the ability to kill bacteria. As you know, nowadays there are many types of refrigerators that are coated with nano-silver inside that kill bacteria, and some high-end food cans are even coated with nano-silver inside.
3.6. Nanotechnology and its future?
Scientists around the world have confirmed the role of nanotechnology. But not every field put nano to use because behind it are a series of issues related to ethics (Using nanotech to modify genes), society and people. Just as the UK Minister of Science and Technology, Lord Sainsbury once said: “Nanotechnology has a huge potential. It brings many benefits to many different fields, but we have to consider them from a different angle: morality, health, safety and social response “
That is why, the UK was quick to study the development possibilities of nanotechnology and put them under strict applicable law. However, the scientific community still believes that in the near future, nanotechnology will dominate most of the main human scientific fields.
4. Maybe you do not know the nano technology applied in Mona Mask.
It can be seen that nano is applied in many different fields, especially in the medical field. Recently, with the influence of fine dust in the air and the Covid-19 pandemic, many units have applied nanotechnology on their masks. Mona Mask is also the same product.
Mona Mask is formed by 6 layers of high-tech filter. In it, the most special layer is nano. Extremely small nanofibers are stacked densely on top of each other to form an extremely sturdy film that makes fine dust stick, not pass through and attack the human respiratory system. This is similar to viruses or bacteria. Especially, there is still a gap between the nanofibers to help the wearer feel comfortable and comfortable.
Application of nano technology to help mask Mona Mask:
+ Removes 99.5% of fine dust (Dust particles are from 0.3 micrometer size).
+ Effective anti-virus and bacteria.
+ 3 times sun protection than normal masks.
What is Nano? Application of Nano technology in everyday life? What effects does the nano layer on Mona Mask bring? ….. Hope, through this article, your questions have been answered. If there are any problems. Please contact us for more information.