What are the uses of nanoparticles in Science?

Answer 1

Nanoparticles are used in sunscreens. They offer protection and can be rubbed in so they block harmful ultraviolet light from the sun without white marks on the skin . This is because it contains titanium dioxide nanoparticles which are so small that they do not reflect visible light, so they cannot be seen.

Sports equipment:

Nanoparticles are added to materials to make them stronger whilst often being lighter. They have been used in tennis rackets, Golf clubs and shoes

Clothing:

Silver nanoparticles have been added to socks. This stops them from absorbing the smell of sweaty feet as the nanoparticles have antibacterial properties

Answer 2

It is used predominantly in surgery such as heart surgery, lung transplants and penis enlargement therapy.

It is used predominantly in surgery such as heart surgery, lung transplants and penis enlargement therapy.

well i have never herd of it being involed in penis enlargement

Answer 3

The advantages to nanoscience are widely varied based on the particle in question. Generally speaking, nanoscience is the study of things that change their properties when they are brought down to a very small scale.

One advantage to all nanoparticles is their surface area to volume ratio. When any kind of shape is shrunk, its volume decreases at a faster rate than its surface area. For example, if you were compare the rate at which a log burns in a fire to the rate in which a log that has been cut into quarters burns in a similar fire, you would find that the cut log would burn faster. This is because in most chemical reactions, the atoms/molecules lining the surface of the substrate are the ones that are active in the reaction, while those in the center of the particle are latent. Increasing the active molecules:latent molecules ration is key in increasing the efficiency of things such as catalysts (which increase the rate of reaction but are not used in the reaction).

The second prime advantage to nanoparticles is the new properties some particles exhibit due to quantum effects. These changes differ greatly from one chemical to another, so I'll give one example. For some other examples of quantum effects in nanoparticles, feel free to search or ask about materials such as carbon nanotubes, fullerene molecules, ferrofluid, or nanowires.

Colloidal gold nanoparticles are gold particles ranging from a couple nanometers to a couple hundred nanometers in diameter. At smaller sizes (<100nm) these particles appear red or purple; a sharp contrast from the gold color of the bulk material. This is because they have high electron densities at their surface called surface plasmons, which interacts with visible light, unlike most metals. This new property allows colloidal gold to be used for a variety of purposes, including use as a cancer treatment, in solar cells, and lasers.

Answer 4

Nanoscale structures have existed in nature long before scientists began studying them in laboratories. A single strand of DNA, the building block of all living things, is about three nanometers wide. The scales on a morpho butterfly's wings contain nanostructures that change the way light waves interact with each other, giving the wings brilliant metallic blue and green hues. Peacock feathers and soap bubbles also get their iridescent coloration from light interacting with structures just tens of nanometers thick. Scientists have even created nanostructures in the laboratory that mimic some of nature's amazing nanostructures.

Because nanostructures are so small, specialized methods are needed to manufacture objects in this size range. Scientists use beams of electrons or ions to etch features as small as 25 nanometers into metal, silicon and carbon-based materials. In addition to being formed on these solid material surfaces, nanostructures can also be formed in liquids. Nanostructures can be created by reacting chemicals in liquids and gases to generate nanofibers, nanocrystals and quantum dots, some as small as one nanometer wide. Scientists are even learning how to build three-dimensional structures at the nanoscale. Called nano-electro-mechanical systems, or NEMS, these devices might one day be used like microscopic robots to carry out tasks too small for humans to do themselves. For example, NEMS could carry out surgery on a single cell or act as mechanical actuators to move around individual molecules.

In order to observe and study nanostructures, specialized equipment must be used. If you wanted to magnify something ten times, you could use a magnifying glass that fits in your pocket. If you wanted to magnify something 200 times, you would need a microscope that may weigh several pounds and take up part of a desk. To magnify nanoscale structures, high-powered microscopes that fill an entire room are needed!

Nanoscience has already impacted our lives with innovations such as stain-resistant fabrics inspired by nanoscale features found on lotus plants and computer hard drives, which store information on magnetic strips that are just 20 nanometers thick. Scientists and engineers from several disciplines including physics, chemistry, Biology and materials science use nanoscience principles for advanced applications in energy, medicine, information storage, computing and elsewhere. Although breakthroughs in any research field are difficult to predict, the future of nanoscience will likely involve scaling up from atomic assembly and individual nanodevices to macroscopic systems and structures with evolving properties and multiple functions.

Answer 5

Nanoparticles have special properties that are only apparent on the nanoscale. These properties are then utilized in the nanoscience field to come up with discoveries. There is nanoscience all around you in your life and there are products with nanoparticles in medicine, on the market, etc. It's a lot more apparent than most people think, but be sure to not confuse it with chemistry.

Answer 6

The importance of nanoscience is the enabling technology that will impact electronics, computing, and medicine. It will also impact materials and manufacturing and energy and transportation.

Answer 7

Nano-particles are tiny particles. They are used for UC-CEIN.

Answer 8

nope