Can anyone introduce nanotechnology, what are the nanotechnologies around you, it turns out that nan

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Nanotechnology is the scientific technology of making matter from a single atom and molecule, and the study of the properties and applications of materials with structural dimensions in the range of 1 to 100 nanometers. Nanoscience technology is a science and technology based on many modern advanced science and technology.

It is the product of the combination of dynamic science and modern science and modern technology, and nanoscience technology will give rise to a series of new science and technology, such as: nanophysics, nanobiology, nanochemistry, nanoelectronics, nanofabrication technology and nanometrology.

The nanometer (nm), also known as the nanometer, is a unit of measurement for length, the SI symbol is nanometer = 10 -9 meters, and the unit of length is the same as the centimeter, decimeter and meter, which is the unit of measurement of length. It is equivalent to 4 times the size of an atom and is smaller than the length of a single bacterium. The international common name is nanometer, abbreviated as nm.

Nanotechnology is a highly interdisciplinary and comprehensive discipline, and the research content involves a wide range of modern science and technology. In 1993, the International Nanotechnology Steering Committee divided nanotechnology into six sub-disciplines: nanoelectronics, nanophysics, nanochemistry, nanobiology, nanofabrication and nanometrology. Among them, nanophysics and nanochemistry are the theoretical basis of nanotechnology, and nanoelectronics is the most important content of nanotechnology.

Nanotechnology is an emerging technology that developed rapidly in the early 90s, and its ultimate goal is that human beings directly manipulate individual atoms and molecules according to their own consciousness to create products with specific functions. Nanotechnology reveals a visible world of atoms and molecules with unprecedented resolution. This shows that mankind is going deeper and deeper into the microcosm, and the level of people's understanding and transformation of the microcosm has risen to an unprecedented height.

According to some data, in 2010, nanotechnology will become the second largest industry after chip manufacturing.

A nanometer is a unit of length, and one nanometer is equal to one billionth of a meter, which is about one-sixty-thousandth of the diameter of a human hair.

The so-called "nanotechnology" refers to the study and utilization of high-tech science and technology on the nanoscale of atoms and molecules, as well as the structure, characteristics and interactions of atoms and molecules. "Nano micromanipulation" is an important part of nanotechnology, which aims to move, shape, characterize and assemble nanomaterials at the nanoscale according to human wishes. Nano-micromanipulation began in the 80s of the last century.

Nanoscience and technology is a complete system integrating high-tech at the forefront of science, and its basic meaning is to understand and transform nature within the nanometer size range, and innovate substances through direct manipulation and arrangement of atoms and molecules. Nanotechnology mainly includes seven aspects: nanosystem physics, nanochemistry, nanomaterials, nanobiology, nanoelectronics, nanofabrication, and nanomechanics.

The so-called "nanotechnology" refers to the study and utilization of high-tech science and technology on the scale, characteristics, and interactions of atoms and molecules on a scale of 1 100 nanometers.

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1. Nanotechnology is the science and technology of making substances with a single atom and molecule, and Lu Zhizai studies the properties and applications of materials with structural sizes in the range of 1 to 100 nanometers. Take the state.

2. Nanoscience and technology is a science and technology based on many modern advanced science and technology, which is the product of the combination of dynamic science (dynamic mechanics) and modern science (chaotic physics, intelligent quantum, quantum mechanics, mesoscopic physics, molecular biology) and modern technology (computer technology, microelectronics and scanning tunneling microscopy technology, nuclear analysis technology).

1. Clothing - traditional clothes generally meet people's functions such as keeping out the cold, covering shame and heat dissipation, while the functions of clothes with nanomaterials will be completely different: adding nano-level ultraviolet reflectors (titanium dioxide, zinc oxide, aluminum, carbon black) and improving the quality of the textile itself can make anti-ultraviolet fibers. Adding contact antibacterial agents, such as metal elements and metal ions, and photocatalytic neutralizing agents, such as nano titanium dioxide, nano zinc oxide and nano silicon oxide, can be added to textile fabrics to create antibacterial, antibacterial and deodorant chemical fiber fabrics.

2. Food - nanomaterials also play a unique role in diet, compared with traditional ingredients and kitchenware, it has huge advantages: the use of nanotechnology to reprogram food molecules and atoms, some structures will change, which can greatly improve the absorption rate of certain ingredients, accelerate the transportation of nutrients in the body, and prolong the shelf life of food. Nano food has the functions of improving nutrition, enhancing physical fitness, preventing diseases, restoring health, regulating body rhythms, and delaying aging.

At present, nano foods mainly include calcium, selenium and other mineral preparations, vitamin preparations, calcium milk and soybean milk with added nutrients, nano tea and various nano functional foods.

3. Housing - nanomaterials are widely used in building materials and decoration coatings, which can significantly improve people's accommodation level. The addition of nano ferric oxide, nano titanium dioxide and nano zinc oxide to the coating can improve the brush resistance of the wall coating by nearly ten times and make the coating have a certain self-cleaning ability.

The surface of glass and tiles is coated with a layer of nano film, which can be made into self-cleaning glass and self-cleaning tiles, and there is no need to wipe them at all.

3. Lines - Nanomaterials can improve and improve the performance indicators of vehicles. The amount of plastic used in automotive manufacturing will increase. Reinforced plastics are filled with surface treated nano-scale inorganic materials montmorillonite, calcium carbonate, silica, etc., which have obvious astringent effect on the molecular crystallization of polypropylene, which can increase the tensile strength, impact toughness and elastic modulus of polypropylene and other plastics, so that the physical properties of plastics have been significantly improved.