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Nanometer is a unit of length, 1 nanometer is equal to 10 to the 9th power, the simplest way to put it: nanotechnology means that the composition of the manufactured thing is very small, you can think about how small 10 is to the 9th power, such a thing is very fine! So that its quality must be good!
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Nanotechnology (nanotechnology).
Nanotechnology is actually a technology that uses individual atoms and molecules to make matter.
From the current state of research, there are three types of nanotechnology. The first is the molecular nanotechnology proposed by the American scientist Dr. Drexler in the book "The Created Machine" in 1986. According to this concept, it is possible to put into practical use machines that combine molecules, so that all kinds of molecules can be combined arbitrarily, and any kind of molecular structure can be manufactured.
No significant progress has been made in nanotechnology for this concept.
The second concept positions nanotechnology as the limit of micromachining technology. In other words, it is a technology that artificially forms nano-sized structures through "processing" with nanometer precision. This nanoscale processing technology is also about to reach the limit of semiconductor miniaturization.
Even if the existing technology is developed, theoretically it will eventually reach its limit. This is because if the width of the circuit is smaller, the insulating film that makes up the circuit will be extremely thin, and the insulation effect will be destroyed. In addition, there are problems such as heating and shaking.
To address these issues, researchers are working on novel nanotechnologies.
The third concept is from a biological point of view. Originally, organisms have nanoscale structures within cells and biological membranes.
Nanotechnology is a new technology that studies the laws and characteristics of the motion of electrons, atoms, and molecules at the nanometer scale. In the process of studying the composition of matter, scientists have found that a few or dozens of countable atoms or molecules isolated at the nanoscale significantly exhibit many new properties, and the technology of using these properties to manufacture devices with specific functions is called nanotechnology.
Nanotechnology is a highly interdisciplinary and comprehensive discipline, and the research content involves a wide range of modern science and technology.
Nanotechnology now includes nanobiology, nanoelectronics, nanomaterials, nanomechanics, nanochemistry and other disciplines. From microtechnology to nanotechnology, including microelectronics, human beings are going deeper and deeper into the microcosm, and people's level of understanding and transformation of the microcosm has been raised to an unprecedented height. Qian Xuesen, a well-known scientist in China, also pointed out that the structure of nanometers left and right and below nanometers is a key point in the next stage of scientific and technological development, and it will be a technological revolution, which will cause another industrial revolution in the 21 st century.
Although there is still a long way to go from the application stage, due to the extremely broad application prospects bred by nanotechnology, developed countries such as the United States, Japan, and the United Kingdom have attached great importance to nanotechnology, and have formulated research plans and conducted relevant research.
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Rice cookers, refrigerators, frying pans, and wok are made with nanotechnology.
Nowadays, many products have adopted nanotechnology, such as the most commonly used in life, such as rice cookers, refrigerators, frying pans, wok and so on.
Aren't a lot of commercials on TV nowadays making a lot of rice cookers, and the frying pan won't stick to the pan, that is the use of nanotechnology, and the surface of the pan feels like a layer of oil film is slippery, and that is made by using nanotechnology to make pies. It's going to be a little more expensive, but the nonstick pan is really nice.
Uses of nanotechnology:
1. Home appliances: nano-material multi-functional plastics made of nanomaterials, which have antibacterial, deodorant, anti-corrosion, anti-aging, and anti-violet.
External lines can be used as antibacterial and deodorizing plastics in refrigerators and air conditioner shells.
2. Environmental protection: In the field of environmental science, nanofilms with unique functions will appear. This membrane is capable of detecting chemical and biological productions.
and the ability to filter these preparations, thereby eliminating contamination.
Mi Brother Bang material-level memory chips have been put into production. After the widespread use of nanomaterials, computers can be reduced to "palm electricity."
Brain". <
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Nanotechnology products include: Chi Song nanorobots, nano raincoat umbrellas, waterproof materials, etc.
Nanotechnology is a science and technology based on the manufacture of substances at the atomic and molecular levels, and the manipulation and processing of nanoscale materials or devices, and its main research content is the properties and applications of materials with structural sizes in the range of 1 to 100 nanometers.
Nanotechnology is a high-tech technology that can manipulate objects as small as the nanoscale. Due to the presence of quantum and size effects, materials constructed at the nanoscale tend to exhibit significantly different physical and chemical properties from macroscopic materials. Biochips and biosensors can be classified as nanotechnology.
Nanotechnology Development Trends:
Advanced nanotechnology, sometimes referred to as molecular fabrication, is used to describe nanoengineered systems at the molecular scale. Countless examples have shown that billions of years of evolution can produce complex, randomly optimized biological machines. In the field of nanotechnology, we hope to use biomimetic methods to find shortcuts to make nanomachines.
Although the advanced nano-technology will initially use biomimetic aids, it may eventually be based on the principles of mechanical engineering. <>
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Nanotechnology can make miniature drug deliverers, microrobots, etc.
Using a miniature drug delivery device made of nanotechnology, Jiaohong can carry a certain dose of drugs, and accurately reach the lesion site under the guidance of external electromagnetic signals, effectively playing a leading role and alleviating the adverse reaction of drugs.
The micro-robot made of nano-fabrication, which is smaller than red blood cells, can unblock blood clots in the cerebral blood vessels by injecting them into the patient's blood vessels. Remove fat and sediment from the arteries of the heart, and also "chew" the stones of the urinary system that leak from the urinary system. Nanotechnology will be a good helper for healthy living.
Application of Nanotechnology:
1. Clothing, adding nanoparticles to textile and chemical fiber products can remove odor and sterilize. The chemical fiber cloth is crisp and strong, but there is an annoying static electricity phenomenon, which can be eliminated by adding a small amount of metal nanoparticles.
2. Food, using nanomaterials, refrigerators can be antibacterial. Sterile tableware and aseptic food packaging supplies made of nanomaterials have been launched.
3. The application of nanotechnology can increase the washing resistance of wall coatings by 10 times. The surface of the glass and ceramic tile is coated with a nano thin layer, which can be made into self-cleaning glass and self-cleaning tiles without scrubbing at all.
3. Nanomaterials can improve and improve the performance indicators of vehicles. Nano ceramics are expected to become an ideal material for engine parts such as automobiles, ships, and aircraft, which can greatly improve engine efficiency, working life and reliability. <>
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Medical devices are made of nanomaterials.
The application range of nanotechnology is very wide, such as in the biomedical field, the use of nanomaterials can be used to prepare high-efficiency drugs and biosensors; In the energy sector, the use of nanotechnology can improve the efficiency of fuel cells and reduce costs; In the field of materials science, new materials with high strength, high conductivity and high catalytic activity can be prepared by using nanomaterials, so as to develop new electronic components and sensors. The wide application of nanotechnology has shown the unique advantages and great potential of Yujian in many fields.
Preparation of nanomaterials:
Commonly used methods include chemical synthesis, topology, solvothermal method, etc. These methods often require very high-precision equipment and techniques to control the shape and size of particles at the nanoscale to achieve the desired properties and characteristics of the sidesail. For example, in the field of nano-silver, the method commonly used is to reduce a certain amount of Ag+ ions to nano-silver particles through a reductive impact reaction, which usually have high specific surface area, good biocompatibility and antibacterial properties, so they are widely used in many fields such as medical and environmental applications.
How can there be no future?
When normal substances are processed to the extremely fine nanoscale, there will be specific surface effects, volume effects, macroscopic quantum tunneling effects and quantum effects, and the changes in structure and energy states caused by the surface and quantum tunneling effects produce many unique physicochemical and other biological properties such as light, electricity, magnetism, mechanics and other biological properties, with extremely high activity. It produces some super properties that we can't think of with traditional materials, and the application field is very wide, I'm afraid you don't have the ability to study. >>>More
Information on nanotechnology includes:
1. Ultra-micro sensor. Sensors are one of the most promising applications for nanoparticles. >>>More
I think you'd better go and see for yourself [nanotechnology] and find more references like this.
Carbon nanotubes: Guibi**, fine race human hair"Super fiber" >>>More
The specific steps are as follows:
1. First of all, write "nanotechnology" at the top as the title, you can make a creative design for the title, so that the title looks more exquisite. >>>More