silver nanoparticle – Silver Nanoparticles Antimicrobial,Copper Oxide Nanoparticles,Gold Nanopowder

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

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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.

August 12, 2016

Application of Nano-silver Antibacterial Agent

Nanotechnology is the 21st century’s most promising emerging technology, widely used in information, biological, pharmaceutical, chemical, aerospace, energy, defense and other fields, which has huge market potential. Nanoparticles are particles in the particle diameter between 1~100nm, also referred to as ultrafine particles. Excellent performance of nanomaterials depends on its unique microstructure. Nanoparticles having a small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect, which shows a material different from conventional thermal, optical, electrical, magnetic, catalytic and sensitive properties.

Nano-silver material has a very stable chemical and physical properties that has a very excellent performance in many aspects of electrical, optical and catalytic, now widely used in many fields of ceramic materials, environmentally friendly materials and coatings. When silver particles are embedded in the different substrates, the original material exhibits different electrical and optical properties. Nowadays, study on silver nanoparticles is still a hot spot with a wide application. At present, nano-silver antibacterial nonwoven fabric as raw material of a variety of medical, health, household and industrial use antibacterial products have been listed.

On the domestic market, the successful launch of nano-silver wound paste, paste nanosilver burns and has dual protective effect of nano silver antimicrobial masks. In recent years, a seriou of products have developed in market, such as a nano-silver antibacterial sanitary napkins, sanitary pads nano-silver, nano-silver antibacterial diapers etc. The newly developed nano-silver antibacterial deodorant antibacterial socks and various types of air filter media, antibacterial wipes, antibacterial mop, antibacterial wipes and the like. Today because of people’s increasing emphasis on health care, nanosilver has excellent antimicrobial efficacy of its products and more widely. Nano silver can also be applied to antibacterial interior wall paint.

Antibacterial interior wall paint can effectively inhibit and kill harmful bacteria in the environment, reduce environmental microbiological hazards on the human body, thus achieving the purpose of the clean environment, the protection of human health, improve the living environment of great significance. Inorganic antibacterial agent is present advantages in safety, durability, broad-spectrum antimicrobial resistance, heat resistance, etc., to overcome the disadvantages of conventional paint mildew fungicides greater toxicity, a soluble, heat, poor durability, and increasingly draw people’s attention.

Currently there are natural antibacterial materials antibacterial materials, organic materials and inorganic synthetic antibacterial antibacterial materials.

In general, natural antibacterial material has the advantage of high security, but it generally short-lived, poor heat resistance, easy re-processing; synthetic organic antibacterial materials having a wide range antibacterial, sterilization speed, etc., but in general it side effects is relatively large, easy hydrolysis, life is short; nano-silver is an inorganic antibacterial material, from the current situation of people in research and development of nano-silver watch, which has a high safety, good heat resistance, antibacterial wide range continuous sterilization of long shelf life and other advantages.

It is precisely because of the nano silver antimicrobial material having the above characteristics and quantum effects of nanomaterials itself and a small effect size and great specific surface features, it attracts so many researchers to so researches and development.

February 18, 2016

Silver or Silver Nanoparticles

Gold nanoparticles have good stability, small size effect, surface effect, an optical effect and unique biological affinity, in many areas show a potential application, aroused great interest in science and technology workers, scientists have synthesized a silver (Ag) nanocluster that is virtually identical to a gold (Au) nanocluster. On the outside, the silver nanocluster has a golden yellow color, and on the inside, its chemical structure and properties also closely mimic those of its gold counterpart. The work shows that it may be possible to create silver nanoparticles that look and behave like gold despite underlying differences between the two elements, and could lead to creating similar analogues between other pairs of elements.

The researchers, led by Osman Bakr, Associate Professor of Materials Science and Engineering at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia, have published the paper in a recent issue of the Journal of the American Chemical Society.

“In some aspects, this is very similar to alchemy, but we call it ‘nano-alchemy,'” Bakr told Phys.org. “When we first encountered the optical spectrum of the silver nanocluster, we thought that we may have inadvertently switched the chemical reagents for silver with gold, and ended up with gold nanoparticles instead. But repeated synthesis and measurements proved that the clusters were indeed silver and yet show properties akin to gold. It was really surprising to us as scientists to find not only similarities in the color and optical properties, but also the X-ray structure.”

Like all chemical elements, silver and gold are defined by their number of protons: silver has 47, and gold has 79. The work here doesn’t change the number of protons in an atom of silver; otherwise it would no longer be considered silver. Instead, the researchers synthesized a nanocluster of 25 silver atoms, along with 18 other molecules called “ligands” that surround the silver atoms. The entire negatively charged, silver-based complex ion has the chemical formula [Ag25(SPhMe2)18]-.

Although a few other silver nanoparticle have been synthesized in recent years, this is the first silver nanocluster that has a matching analogue in gold: [Au25(SPhMe2)18]- has previously been reported. Besides both nanoclusters having 25 metal atoms and 18 ligands, they also both have all of their atoms and electrons arranged in almost exactly the same way.

In their study, the researchers performed tests demonstrating that the silver and gold nanoclusters have very similar optical properties. Typically, silver nanoclusters are brown or red in color, but this one looks just like gold because it emits light at almost the same wavelength (around 675 nm) as gold. The golden color can be explained by the fact that both nanoclusters have virtually identical crystal structures.

December 29, 2015

How Using Gold Nanoparticles Develop Novel Nanosurgery Technique?

Nanotechnology in today’s society are more and more mature, the future development of new technologies provide a higher standard of living, the scientists are trying hard to explore new areas. A research team led by Professor Michel Meunier from the Polytechnique Montréal has developed a novel transfection technique using gold nanoparticles and a femtosecond laser to change cancer cells’ genetic material.

In this technique, silver nanoparticle and gold nanoparticles are deposited on the cells to concentrate the laser energy and enable it conduct a nano-scale surgery in a highly accurate non-invasive manner. This method is capable of changing the gene expression in the cancer cells to slow down their movement, thus preventing metastases formation. This pioneering achievement in nanosurgery paves the way to advance cancer treatments and other innovative medical applications.

This technique is a promising replacement for traditional cellular transfection techniques like lipofection. In the experiment on malignant human melanoma cells, this method showed an optoporation efficacy of 70% and a transfection performance three folds better than that of lipofection treatment. Moreover, contrary to traditional treatments that destroy the cells’ physical integrity, the novel technique ensures cellular viability with below 1% of toxicity.

This significant scientific advancement opens the door to develop promising applications such as novel therapeutic methods in cardiology, neurology, and oncology. The Polytechnique Montréal team works in partnership with scientists from the Department of Medicine at the McGill University Health Centre.

This project is funded by the Deutsche Forschungsgemeinschaft, the Canadian Institutes of Health Research, the Canada Research Chairs program, the Canada Foundation for Innovation, and the Fonds Québécois de la Recherche sur la Nature et les Technologies.

The research team has reported their findings in the journal Biomaterials.