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April 20, 2018

Significant applications: Graphene is used to detect cancer cells for the first time!

Although graphene has not been widely used yet, but researches on it have never stopped.

Graphene is a planar film composed of carbon atoms in the hexagonal heterogeneous lattice of sp2 hybrid orbitals, and is a two-dimensional material with only one atomic layer thickness. Its conductivity, thermal conductivity, strength, stability are very strong, known as “the king of new materials”, may have a subversive impact on the entire industry.

Can graphene be used to detect cancer cells?
Researchers at the University of Illinois at Chicago have found that cells and graphene interact to distinguish active cancer cells from common cells by Raman imaging, which makes graphene promising for early detection of cancer. The study was published in the American Chemical Society “Applied Materials & Interfaces”.

What is the mechanism by which graphene can be used for cancer detection? “Graphene, the thinnest two-dimensional material known in the world today, is sensitive to changes in its surface,” says Vikas Berry, associate professor of chemistry at the University of Tokyo. “The interaction of graphene and cells leads to the distribution of charge in graphene rearrangement, changes the energy of atomic vibrations, such changes can be detected by Raman spectroscopy.As the cancer cells are more active, easily lead to a higher negative charge on the surface, which can distinguish whether there exist cancer cells.

The technology is still in the experimental stage of cancer mice. The results showed that the technology is very promising, and it will be further tested for patients with living tissue for testing. At the same time, the technology is also committed to distinguish between other types of normal cells and cancer cells. “Once the patient has a brain tumor, we can use this technique to see if the tumor recurs after surgery,” says Berry. “To do this, we need a sample of cells that can interact with graphene to see if cancer cells are still there.”

Earlier this year, Berry and his collaborators also studied nanoscale ripples in graphene, which showed different electrical conductivity in the vertical direction, which was useful for electronics.

With outstanding properties, such as large specific surface area, high conductivity and good flexibility, thinnest and strong strength, Graphene is supposed to make great contributions to human being in various aspects of life!

Related reading：Nano Graphene For Sale Graphene Oxide Powder

April 10, 2018April 10, 2018

Nanowires

Definition: The nanowires can be defined as a one-dimensional structure with a limit of 100 nanometers in the transverse direction (longitudinally unrestricted). Suspended nanowires indicate that the nanowires are fixed under vacuum conditions. Typical aspect ratios of nanowires are above 1000, so they are often referred to as one-dimensional materials.

Physical properties of Nanowires:

1. Mechanical properties

Normally, as the size decreases, the nanowires will exhibit better mechanical properties than large pieces of material. Strength becomes stronger, toughness becomes better.

2. Conductive properties

With the significant changes in mechanical properties, the electrical properties of nanowires are also significantly different from those of bulk materials. The conductivity of nanowires is expected to be much smaller than that of bulk materials. The reason is that when the cross-sectional dimension of the nanowires is smaller than the average free path of the bulk material, the scattering effect of the carriers on the boundary will be highlighted. The resistivity will receive a serious effect of the boundary effect. The surface atoms of the nanowires are not sufficiently bonded to the atoms in the bulk material, and these surface atoms that are not sufficiently bonded are often the source of defects in the nanowires, so that electrons can not pass smoothly The nanowires have lower conductivity than body material.
The conductivity of nanowires is expected to be much smaller than that of bulk materials. This is mainly caused by the following reasons. First, when the line width is less than the free electrons of free radicals, the scattering of carriers on the boundary will appear. For example, the average free path of copper is 40 nm. For copper nanowires with a width less than 40 nm, the mean free path will be shortened to line width.
At the same time, because of the scale of the reasons, the nanowires will also reflect other special properties. In carbon nanotubes, the movement of electrons follows the principle of ballistic transport (which means that electrons are free to travel from one electrode to another). In the nanowires, the resistivity is severely affected by the boundary effect. These boundary effects come from the atoms on the surface of the nanowire, which are not fully bonded as those of those atoms in the bulk material. These atoms that are not bonded are usually the source of defects in the nanowires, making the nanowires’ conductive capacity lower than the bulk material. With the decrease of nanowire size, the number of surface atoms increases relative to the number of atoms, so the boundary effect is more obvious.
Further, the conductivity will undergo energy quantization. The nanowires are connected between the electrodes, and scientists can study the conductivity of nanowires. By measuring the conductance of the nanowires at the time of stretching, the scientists found that when the length of the nanowires was shortened, its conductivity was also reduced in the form of ladder, with a Langjian constant G between each order.

Application of Nanowires:

In the electronics, optoelectronics and nanoelectromechanical devices, nanowires may play a very important role. It can also be used as an additive in composites, in a quantum instrument, a field emitter, and a biomolecule nanosensor.

1. Manufacture of electronic equipment
Some early experiments have shown that nanowires can be used in next generation computing devices. In order to make effective electronic elements, the first important step is to chemically method the nanowire doping. This has been implemented on nanowires to produce P-type and N-type semiconductors. The next step is to find the way to make the most simple electronic device for PN junctions. This can be done in two ways. The first is a physical method: put a P-line into an N-line. The second method is chemical: mix different impurities along a line. The next step is to build a logic gate. By simply connecting several PN sections together, the researchers have created all the basic logic circuits: the AND, or the NAND gate can already be crossed by the nanowires. The nanowire crossover may be important for the future of digital computing.

2. Solar energy conversion
The nanowires are able to naturally gather sunlight into a very small area of ??the crystal, which is 15 times the intensity of ordinary light. Since the diameter of the nanowire crystal is smaller than the wavelength of the incident sunlight, the resonance of the interior of the nanowire crystal and the surrounding light intensity can be caused. The study found that the photon emitted by resonance is more concentrated (solar energy conversion is in the process of disseminating the photon), which helps to improve the conversion efficiency of solar energy, making the nanowire-based solar cell technology has been really improved.

3. Promote chemical reactions
Researchers built the nanometer “tree” electrode into the water, and then use the simulated sunlight to illuminate and measure the output of the electricity. The results show that this vertical branch structure can not only capture a lot of solar energy, but also to maximize the increase in hydrogen production. Because in the plane structure, the bubbles must be large enough to float the surface, and the vertical structure can quickly extract very small hydrogen bubbles. The researchers said that this vertical branch structure can provide a chemical surface reaction area of ??400,000 times higher than the surface area. Researchers also have more ambitious goals, their eyes staring at the artificial photosynthesis. In natural photosynthesis, plants not only absorb sunlight, but also absorb carbon dioxide and water, resulting in carbohydrates for their own growth. Researchers hope to one day be able to imitate this process, the use of nano “forest” to absorb the atmosphere of carbon dioxide.

4. Microcell manufacturing
Scientists have made an important step in the manufacture of microcells, and they have developed a microcell with a vertically aligned nickel-tin nanowire, which is evenly wrapped around a multi-cell called PMMA Body material, which is commonly known as plexiglass. The main role of PMMA is insulation, when the current through, it can protect the inside of the nanowires from the reverse electrode. This battery is shorter than the average lithium battery charging time, other performance is also more excellent.

HW NANO, a high-tech enterprise focusing on manufacturing, research, development and processing of nanoparticles and nanowires.
High quality silver nanowires,copper nanowires, ZnO nanowires, SiC nanowires, precious metals nanowires with multi specification are available. As for olutions, it would be customized.

December 15, 2017

Application of nano zinc oxide in major industries

1 semiconductor industry

Zinc oxide is by far the hardest one in Group II-VI semiconductor materials, which means that zinc oxide can prevent the proliferation of other II-VI materials that are defective in their application to light emitting devices;

Zinc oxide as a UV detector has a very low dark current, the maximum response wavelength up to 350 nm;

Zinc oxide materials are transparent in the 0.4-2 μm wavelength range and have piezoelectric, optoelectronic and other effects, thus providing electrical, optical and acoustic devices such as light sources, detectors, modulators, optical waveguides, filters, and related circuitry Such as the possibility of monolithic integration. So has aroused the interest of many researchers.

2 rubber, plastic industry

Nanometer zinc oxide is the rubber industry’s most effective active agent and vulcanization accelerator. Nanometer zinc oxide powder has large specific surface area, small particles, good dispersibility, loose and porous, good fluidity and other physical and chemical characteristics. Therefore, it has good affinity with rubber, easy dispersion when melting, low heat generation of rubber compound, Broken deformation is small, good elasticity, improve the material properties and physical properties of the process for the manufacture of high-speed wear-resistant rubber products. Such as aircraft tires, limousine radial tires, with anti-aging, anti-friction ignition, long life and other advantages, substantially improve the rubber finish, mechanical strength, temperature and aging resistance, especially wear resistance.

In addition, zinc oxide as a rubber vulcanization system complete with additives, the higher the amount of filling, usually about 5 parts, due to large proportion of zinc oxide, a large amount of filling, the density of the rubber compound is very large, the Product life and energy consumption are negative, and the use of nano-zinc oxide, the amount of grade zinc oxide is only 30% -50%, reducing the production costs of enterprises, and in the tensile properties, heat, aging, etc. Are far better than ordinary zinc oxide.

Zinc oxide for the plastics industry, with the polymer material composite, with a strong bond between the substrate material, not only can improve the rigidity and hardness of the material, but also enhance the toughening effect. Due to the nano-ZnO shielding UV properties, the application of these materials can also improve the UV resistance.

3 ceramic industry

The extremely small particle size, large specific surface area and high chemical property of nano zinc oxide can significantly reduce the sintering density of the material, save energy, densify and homogenize the composition and structure of the ceramic material, improve the performance of the ceramic material, Improve the reliability of its use, can control the composition and structure of the material from the structural level of the nano-material, which is conducive to giving full play to the potential performance of the ceramic material,

In addition, since the size of the ceramic material determines the microstructure and macroscopic properties of the ceramic material, if the powder particles are uniformly packed, the sintering shrinkage and the crystal grains grow uniformly, the smaller the particles, the smaller the defects, The higher the strength of the prepared material, the more likely it is that some large particles do not have the unique properties.

4 cosmetics industry

In order to avoid excessive ultraviolet radiation on human skin damage, people have developed a variety of sunscreen skin care products. Early use of sunscreen skin care products more salicylic acid, amino acid, cinnamic acid, benzophenone and other organic UV inhibitors. The advantages of organic UV anti-UV sunscreen is high efficiency, but the sunscreen does not last long and stimulate the shortcomings of the skin.

In recent years, we have developed nano-zinc oxide, titanium dioxide, kaolin, talc and other inorganic anti-UV agent. Nano-zinc oxide UV absorption ability, UVA and UVB have a good shielding effect.

As an inorganic anti-UV agent, nano zinc oxide is non-toxic, odorless, non-irritating, non-decomposing, non-degenerating and has good thermal stability. Its safety is approved by the U.S. Food and Drug Administration and can be used as a sunscreen, makeup foundation and Lipstick and other raw materials.

5 catalyst industry

Due to its small size, large specific surface area and different bonding state between the surface and the particles, the nano-sized zinc oxide increases the contact surface and improves the catalytic efficiency. It is the first choice for chemical production enterprises to prepare chemical catalysts and desulfurization agents. Compared with ordinary oxidation Compared with zinc, zinc oxide has a larger specific surface area, and the number of atoms on the surface increases. As a result, more active catalytic sites are exposed, and the resulting catalysts are more active.

Nanometer zinc oxide used as desulfurizer is petroleum refining, ammonia, methanol, organic synthesis and chemical fiber and other industrial raw materials gas (oil) purifier, in addition can also be used as briquette, coking and flue gas desulfurization process.

Nano-ZnO for the removal of SO2 gas also has a good effect. Nano zinc oxide desulfurizer with wide temperature range, high purification, long life B sulfur C high capacity and other characteristics, the desulfurization reaction, the gas content of hydrogen sulfide can reach below 23%.

6 other fields

With the deepening of people’s understanding of the performance of nano zinc oxide, the scope of the application of nano-zinc oxide is constantly expanding, for example, the use of nano-zinc oxide in traditional coating technology can further improve the protective coating, making it UV-resistant Irradiation, resistance to atmospheric damage and degradation, discoloration and other functions;

The nano zinc oxide to a certain percentage added to the propionic acid coating, the system can be made with excellent antibacterial antibacterial nano-coating. Nanometer zinc oxide is very sensitive to the external environment (such as temperature, light, moisture, etc.), small changes in the external environment will quickly lead to changes in their surface ionic and electronic motion, which immediately led to significant changes in resistance. Using the sensitive nature of nano-ZnO, high-sensitivity gas alarms and hygrometers are produced.

To make a summary, nano-ZnO has become a new type of high-performance fine inorganic powder products for the 21st century. At present, researchers at home and abroad have developed various methods to prepare various forms of nano-zinc oxide products. Studies on nano-ZnO have been made A great progress has been made, but there are still some shortcomings in the preparation methods such as high cost, complex process and difficulty in industrialization.

In addition, the research on the structure and the application properties of nano ZnO has not been further studied. Therefore, the follow-up research focuses on the development of a simple, efficient and easy-to-manufacture method. The effect of the material structure on its optical, electrical, magnetic and acoustic performances is further studied. Applied technology research, with a view to give full play to the nano-size effect of materials in end products such as high-energy solar cells, photoreceivers, gas sensors and biosensors. With the improvement of nanometer zinc oxide production process, nanometer oxide industry application will enter a stage of rapid development.

Related reading：antibacterial agent zinc oxide nano zinc oxide powders

December 8, 2017

ALN nanopowder for heat conductive

AlN is an atomic crystal, diamond-like nitride, stable up to 2200 ℃. High intention at room temperature, and the intensity decreases slowly with increasing temperature. Good thermal conductivity, thermal expansion coefficient is small, or electrical insulator, dielectric properties, good mechanical properties. It is widely for High temperature structural parts, thermal conductive materials and crucibles and casting mold materials.

High thermal conductivity (about 270W / m · K
Thermal expansion coefficient (4.5 × 10-6 ℃)

ALN nanopowder For thermal conductive use:

1, thermal silica and thermal conductivity of epoxy resin
Ultra-high thermal conductivity of nano AlN composite silicone has good thermal conductivity, good electrical insulation, a wide range of electrical insulation temperature (operating temperature -60 ℃ – 200 ℃), lower consistency and good construction performance. Products have reached or exceeded the imported products, because it can replace similar imported products and are widely used in electronic devices heat transfer medium, improve work efficiency. Such as CPU and radiator gap, high-power transistors, SCR components, diodes, and the substrate contact with the slit at the heat transfer medium. Nano thermal paste is filled IC or transistor and the gap between the heat sink, increasing the contact area between them, to achieve better heat dissipation.

2, the application of thermal plastic: Nano aluminum nitride powder can greatly improve the thermal conductivity of plastics. By adding 5-10% of the experimental product into the plastic, the thermal conductivity of the plastic can be increased from 0.3 to 5. Thermal conductivity increased more than 16 times. Compared to the current market thermal filler (alumina or oh magnesium oxide, etc.) with a low amount of added, the mechanical properties of products have improved the role of thermal conductivity to improve more obvious characteristics. At present, relevant application manufacturers have already purchased Nano AlN powder on a large scale.

Apart from Aluminum Nitride nanopowder, also BN, SiC, alpha Al2O3 ZnO nanopowder, etc are also applied for thermal conductive. In theory BN nanopowder and ALN nanopowder have higher thermal conductivity. We believe there are increasing market for thermal conductive nanopowder materials, and for the Aluminum Nitride nano powder for thermal conductive use.

December 4, 2017

Properties and Applications of Boron Nitride Materials

h- BN powder is a hexagonal crystal, which is a kind of white flake-like fine material similar to graphite, commonly known as white graphite, and excellent in lubrication. BN powder is with lubricity, thermal conductivity and good high temperature performance.

Hexagonal boron nitride is called “white graphite” because it has a layered crystal structure similar to graphite and has similar physicochemical properties to graphite, such as good lubricity and thermal conductivity. h-BN is often used as a sintered ceramic material. Because of its high thermal conductivity, good electrical insulation, low thermal expansion coefficient and non-wettability with most metals, h-BN ceramic has been widely used in high temperature insulation parts, atomic energy, metallurgy, aviation and other fields.
As an advanced ceramic material, boron nitride has many excellent properties such as high temperature resistance, high thermal conductivity, high insulation, machinability, lubrication, non-toxicity and the like, and has strong neutron absorption capacity. Therefore, this new type of inorganic materials will have broad application prospects in the military engineering such as metallurgy, chemical engineering, machinery, electronics, aerospace and so on, and industrial production.
The use of boron nitride high temperature, electrical insulation, h-BN products can be used to make high-temperature plasma welding tools, insulation components, a variety of heater bushings, spacecraft thermal shielding materials. Coupled with the high thermal conductivity, which can be made of coal mine explosion-proof motor insulation heat sink, high temperature thermocouple protection sleeve. The use of h-BN glass, metal melt non-wettability and corrosion resistance, can be used for special smelting smelting a variety of non-ferrous metals, precious metals and rare metals containers, crucibles, pumps and other components.

In addition to the above properties, boron nitride does not soften and deform at high temperatures and can be used as high-temperature furnaces, mandarins and boats, particularly magnetoelectric power generators and plasma jet furnaces, requiring materials with a great heat resistance Impact and electrical insulation, BN is an excellent material in this regard. Boron nitride thermal conductivity is also very good, can be used as high-frequency electrical insulation materials, integrated circuits with heat sink and ion rocket nozzle accessories. The shape of these objects is complex, high precision machining requirements, excellent processing performance of the BN can fully meet the requirements. Boron nitride high pressure point, high resistance and good dielectric properties, can be used to make EHV insulation wire.

November 28, 2017

Germanium nanopowder

In recent years, lithium-ion batteries as its main energy storage system has been widespread concern, the development of high energy density, high power density and long life capacity of high-performance lithium-ion battery research has gradually become a hot research.

Recently, alloy lithium-containing negative electrode materials (including silicon, germanium, tin-based anode materials) with higher lithium capacity have become the most promising alternative materials for future graphite-based negative electrode materials. The structural design of these materials at the nanometer scale can effectively improve the electrochemical cycle and magnification performance of these materials, and fully demonstrate its promising application prospect in the next generation high performance lithium ion battery.

Germanium has a higher electrical conductivity and lithium ion diffusion than silicon, so germanium is a powerful candidate for high-power lithium-ion battery anode materials. At present, the researchers try to prepare a variety of germanium nano structured materials to improve their electrode performance. Korean scholar Park and so on to obtain zero-dimensional hollow germanium nanoparticles and three-dimensional porous germanium nanoparticles, showing better cycle performance.

Also, researchers at the University of Munich, Germany (TUM) and the University of Munich (LMU) have discovered a new method of making thin, solid, and porous semiconductor layers using nano structured germanium materials that are expected to be used to develop portable solar cells and batteries electrode.

This material is very suitable for small, lightweight and soft solar cells, or to improve the performance of rechargeable batteries electrode. Scientists by integrating the amount of organic polymers in the pores of germanium materials can be tailored to create the electrical properties of the symbiotic mixture. This design not only saves space, but also create a large interface surface, enhance the overall performance. In the porous porous germanium nanometer film filled with the right amount of organic polymer, making it a hybrid solar cell。

Manufacturers around the world are looking for light weight, sturdy materials, and portable solar cells. So far they are mainly used for organic compounds, which are sensitive and have a relatively short life span. Heat and light decomposition of the polymer and result in reduced performance. The thin but strong germanium mix provides a real choice.

November 23, 2017

What will replace ITO？ Metal mesh? Or silver nanowires?

What is ITO?

Indium Tim Oxide(ITO), is a thin-film material, usually used in LCD,PDP,EL/OLED, Touch Panel, Solar Cells and transparency electrode of other electronic instruments.

ITO is now widely used in electronic products, but the future of electronics, such as mobile terminals, wearable devices, smart appliances, etc. Touch panel is hoped to become the large-size, cost-reduction and flexible. This is bound to promote the new materials to replace traditional ITO.

Traditional ITO thin film can’t used in flexible application, and its inherent problems—-conductivity and light transmittance are difficult to overcome. Thus, numerous manufacturers begin to find the substitutes for ITO, such as silver nanowires, metal mesh, carbon nanotubes(CNTs) and graphene.

From technology and marketization level, metal mesh and silver nanowires will be the two major roles in new-developing touch technology.

ITO alternatives – silver nanowires

What is the silver nanowires?

Silver nanowires (Ag NWs) technology, the silver nanowires ink material is applied on plastic or glass substrate, and then using the laser lithography technology to portray into a transparent conductive film with nanoscale silver line conductive network pattern.

The Advantages and Disadvantages of Silver Nanowires

Advantages:

the production process is simple and good rate.
since the line width is small, the conductive thin film made of silver nanowires technique can achieve higher light transmittance than the one made of a metal grid technology.
compared to the metal mesh film, silver nanowires films own a smaller radius of curvature and the resistance change rate is small while bending, the application on devices with surface display, such as smart watches, bracelets, etc, has more advantages.
besides excellent electrical conductivity than silver, because of the nanoscale size effect, silver nanowires also have excellent transparency and resistance to flex.
large aspect ratio of silver nanowires effect makes its applications in conductive plastic, thermal plastic and other fields also have outstanding advantages.
Disadvantages:

With the severe diffuse reflection light irradiation in outdoor scenes, the screen reflective strongly, you can not see the screen clearly.
Silver nanowires Status

1. although silver nanowires has slightly high raw material costs, its preparation is simple, thus the overall cost is not high. And diffuse phenomenon can use some techniques to reduce:
2. the silver nanowires coated with a high refractive index material film;
3. blackening silver nanowires surface;
4. Reduce the reflective intensity;
5. roughened silver nanowires.

HWNANO supply kinds of siver nanowirs with various specification(ultrafine diameter to <30nm, length to >20um). As for confecting dispersion liquid, different medium,concentration can be customized.

November 17, 2017November 28, 2017

Heat dissipation application of graphite powder in LED lamps

The features of graphite powder are soft, dark gray; oily feel that can contaminate the paper. In the isolated oxygen conditions, the melting point above 3000 ℃, is one of the most resistant minerals. At room temperature, the chemical properties of graphite powder are relatively stable, insoluble in water, dilute acid, dilute alkali and organic solvents; different high temperature reaction with oxygen to produce carbon dioxide or carbon monoxide. It only oxidizes with fluorine and simple carbon in the halogen. Graphite powder is easier to acid oxidation. Besides, it can also react with many metals to form metal carbide, which can be smelted at high temperature.
Graphite powder is the necessary raw materials for industrial production and application. The application of graphite powder has begun to move to the more high-end, which has launched a variety of applications, such as in electronics, new energy, high-end manufacturing, medical and other fields. LED lamps is the environmental protection and energy saving lamps recent years that LED lights cooling is the need to solve the problem of graphite powder.
LED lamps and lanterns of the poor heat can lead to damage to power, light failure accelerated, shortened life and other issues, LED lighting system performance is always the top priority, metal materials in the application of LED cooling difficult to process, energy consumption, density is too large, conductive, easy to deformation and difficult to recover waste and many other issues, and graphite powder material will not be such a problem, graphite powder plasticity is good, easy processing, and has excellent high temperature, thermal conductivity and other properties. Graphite powder can be processed into the graphite heat sink, the heat emitted by the lamp will be absorbed through the graphite heat sink, and even to the surrounding heat, graphite powder and plastic can also be made into a heat sink, cooling the cooling cup and cooling shell and so on.
There are many cooling performance in the application of LED lights, including LED chip packaging components, LED optical lens, light scattering components, efficient cooling components, light reflection and light diffusion board. Graphite powder of high-end products plays an important role in the solar transparent electrode, thermal materials and touch screen and other fields.

September 22, 2017

Magical nano silver powder — seven antibacterial characteristics

The nanometer (nm) is the smallest unit of measure after the micron, and the nanometer is one millionth of one millimeter, that is to say, nanometer is one billionth of a meter. Nano silver powder is made through cutting-edge nano-technology. The emergence of silver powder in the nanometer state, promotes a qualitative leap of bactericidal ability, very few nano-silver can produce a strong bactericidal effect. It can kill more than 650 kinds of bacteria in a few minutes, with broad-spectrum sterilization and no resistance, whihc can promote wound healing, cell growth and repair damaged cells, without any toxic reactions, find no any stimulus response to the skin. All this opens up a broad prospect application of antimicrobial of nano silver powders,and become the latest generation of natural antibacterial agents. Nano silver sterilization has the following characteristics:

1. Broad spectrum antimicrobial

Nano-silver particles directly into the cell, work with oxygen metabolism enzyme (-SH), make the bacteria asphyxia and death of the unique mechanism of action, which can kill contact with most of the bacteria, fungi, mold, spores and other microorganisms. It has found that it has comprehensive antibacterial activity against drug resistant pathogens such as Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus pyogenes, Enterococcus, and anaerobic bacteria. Fungi such as Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans and other G +, G-pathogens have bactericidal effects on Chlamydia trachomatis, causing sexually transmitted diseases. Neisseria gonorrhoeae also has a strong bactericidal effect.
An antibiotic can kill about 6 pathogens, while nanoscale silver can kill hundreds of pathogenic microorganisms. Strong effect to kill bacteria, fungi, trichomoniasis, chlamydia / chlamydia, Neisseria gonorrhoeae, bactericidal, the same effect for antibiotic resistance!

2. Potent sterilization

According to the study, it’s found that Ag can kill more than 650 kinds of bacteria in a few minutes. Nano-silver particles and pathogens after the cell wall / membrane binding, can directly into the cell, quickly with the oxygen metabolism of the enzyme thiol (-SH) binding, the enzyme inactivation, blocking the respiratory metabolism to suffocate. Unique bactericidal mechanism, so that nano-silver particles in the low concentration can quickly kill pathogens.

3. Permeability is strong

Nano-silver particles with superior permeability, can quickly penetrate the skin 2mm sterilization, have a good bactericidal effect on the common bacteria, stubborn bacteria, drug-resistant bacteria and fungi caused by deep tissue infection.

4. Repair regeneration

Nano silver can promote wound healing, promote the repair and regeneration of damaged cells, to rot myogenic, anti-bacterial anti-inflammatory to improve the microcirculation around the wound tissue, effectively activate and promote tissue cell growth, accelerate wound healing, reduce scar generation.

5. Antibacterial lasting

Nano-silver particles using patented technology, a layer of protective film, in the human body can be gradually released, so antibacterial effect

6. Safe and non-toxic

As early as the “Compendium of Materia Medica” records: raw silver, non-toxic; US Public Health Bureau in 1990, “on the toxicity of silver investigation report” that: silver on the human body no obvious side effects; nano silver is topical, Is the safest way to use it. According to the experimental study found that mice in the oral maximum tolerance of 925mg / kg, which is equivalent to the clinical use of 4625 times the dose, without any toxic reactions in the rabbit skin irritation experiments, did not find any stimulus response.

7. No drug resistance

Nano-silver is non-antibiotic fungicide: nano-silver can kill a variety of pathogenic microorganisms, stronger than antibiotics, 10nm size of nano-silver particles unique antibacterial mechanism can quickly kill bacteria directly to the loss of reproductive capacity, therefore, can not produce Drug resistance of the next generation, can effectively avoid the resistance caused by recurrent long-term treatment.

Hongwu Nano, an expert in manufacturering in nanopowders since 2002, especialy nano Silver powders with the best antibacterial property.
High purity,99.99%, good shape,spherical, uniform particle size, easy to disperse nano silver powders are supplied.
Generally speaking, the smaller particle size of Ag nanoparticles, the better bactericidal effect.
Silver nanopowders can not only be available for powders state, but also nano silver antibacterial solution, which is ready to be used, is available.
The concentration of nano silver antibacterial solution is 1000PPM commonly. Other concentration of the solution can be customized.

August 31, 2017August 31, 2017

Nanomaterials closely related to life

Nanotechnology has become a trend, has a great help in our basic necessities of life including Buildings, clothing, food, transportation, medical care, etc. Nanomaterials with dimensions below around 100 nm exhibit unique physical and chemical properties drastically different from their bulk counterparts. The intricate relationship between nanostructure and functionality has opened up a whole new area of research where scientists world-wide aim at exploring, understanding and exploiting the potential of nanomaterials.

1. Sterile tableware and aseptic packaging with nanometer materials makes food more security.

nanomaterial representative: silver nanoparticle, silver nanowire, tio2 nano, etc.

2. That some nanopowders have strong adsorption ability, can make the waste water thoroughly become clear water and reach drinking standard.

nanomaterial representative: Iron nanoparticles, fe3o4 nano, Tio2 nano,etc.

3. Adding nanoparticles to the ceramic can make the material strength and toughness be greatly increased, which is expected to become the ideal material of cars, ships and other engine parts.

nanomaterial representative: silicon carbide nanoparticle, TIC nanoparticles, zro2 nano

4. the micro drug delivery device with nanotechnology can carry a certain dose of the drug in the body, can take the initiative to search for attacking cancer cells or repair damaged tissue.

nanomaterial representative: diamond nanoparticles,iron nanoparticles

5. Adding a small amount of nanoparticles can eliminate electrostatic phenomena of chemical fabric.

nanomaterial representative: ATO nano, TiO2 nano, ZnO nano, carbon nanotube, and metal nanoparticles,etc.

6. Building materials containing nanoparticles and solar thermal reflective material can absorb ultraviolet ray.

nanomaterial representative:TiO2 nano, ZnO nano, WO3 nano, carbon nanotube, etc.

7. Most of us once broke mobile phone or tablet screen.This is a very troublesome thing, we also need to find a place to repair, and pay big money to replace a new screen. Scientists have researched a material that is made of silver nanowires and graphene, which make touch screen be non-friable and flexible, what’s more, it is cheaper.

8. Cosmetics use. platinum nanoparticles, gold nanoparticles, tio2 nano, Zno nano, sio2 nano,etc.

9. More application.

nanoparticles manufacturer

Hongwu International Group Ltd is a Nanotechnology Company manufacturing nanoparticles and nanopowders, developing new nanomaterial based applications for the industry and supplying almost all kinds of nano-micro sized powders and more from worldwide-known companies. Our company provides our customers:

Carbon Nanotubes and Graphene Nanomaterials (almost all kinds are available)

High Quality Nanoparticles and Nanopowders (Elements, Alloys, Metal and Non-Metal Oxides, Compounds)

High Quality Microparticles and Micron Sized Powders (Elements, Alloys, Metal and Non-Metal Oxides, Compounds)

Nanowires

Nanoparticle Dispersions

If you are looking for related products that are not in our product list yet, our experienced and dedicated team is ready for help. Do not hesitate to contact us at hwnano@xuzhounano.com. thank you.