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Why do nanoparticles move differently to larger particles?
Nanoparticles have a higher surface-area-to-volume ratio, making them more prone to surface interactions, such as adhesion and attraction, which can affect their movement. Additionally, nanoparticles experience more Brownian motion due to their smaller size, causing them to exhibit different diffusion behaviors compared to larger particles.
Why can nanoparticles of iron be used to clean up oil?
Iron nanoparticles can be used in the remediation of contaminated soil in certain cases- see related link. The clean up of an offshore oil spill is different. Much of the spilled oil can not be recovered, however they are trying to mitigate the harmful effects by selective burning, skimmers, dispersants and containment booms.
What is the difference between gold colloids and gold nanoparticles?
Gold colloids have multiple definitions. They have been used for many years as a dietary supplement (see http://www.purestcolloids.com). Gold colloids provide the body with minerals to maintain optimum health. They have been used for many years as a therapeutic for arthritis. They have also been used in lateral flow applications such as in pregnancy tests (see http://www.bbigold.com). Gold nanoparticles, on the other hand, must possess properties that are specific for nanotechnology applications. Sample nanotechnology applications include Resonance Light Scattering (RLS), Surface Enhanced Raman (SERS), in-vivo photothermal cancer therapy, imaging, and diagnostics. These applications demand monodispersity in size and shape with highly reactive surfaces because these applications depend on the quality of the individual nanoparticles, not just the properties of the nanoparticles in bulk. This is the definition of nanotechnology. In order to make gold nanoparticles suitable for these applications, the gold nanoparticles must have the following characteristics: 1. Provide rod shapes for in vivo applications. 2. Spherical gold nanoparticles that are not manufactured using thiol or citrate chemistry which result in unreactive, polydisperse gold nanoparticles. 3. Conjugations that are based on solid, covalent bonds, not adsorption which can results in lost conjugations. For gold nanoparticles see Nanopartz at http://www.nanopartz.com.
Which particle is smaller a proton molecule atom or nucleus?
A proton is smaller than a molecule, which is a group of atoms bonded together. The nucleus is smaller than both a molecule and an atom, as it is the central part of an atom where most of its mass is concentrated.
What are tiny but of liquid or solid matter called?
Tiny particles of liquid or solid matter are commonly referred to as "micro-particles" or "nanoparticles," depending on their size. Micro-particles typically range from 1 to 100 micrometers, while nanoparticles are smaller, measuring less than 100 nanometers. These particles can have unique physical and chemical properties, making them significant in various fields such as medicine, materials science, and environmental studies.
What is the difference between concentrated and dilute?
Concentrated solutions have a high amount of solute particles dissolved in the solvent, whereas dilute solutions have a low amount of solute particles. Concentrated solutions are stronger and have a higher concentration, while dilute solutions are weaker and have a lower concentration.
How is the size of silver nanoparticles different to normal silver particles?
Silver nanoparticles are typically smaller than normal silver particles, with diameters typically ranging from 1 to 100 nanometers. This smaller size gives silver nanoparticles unique physical and chemical properties compared to larger silver particles. These properties are due to the large surface area to volume ratio of nanoparticles, leading to increased reactivity and different optical, electronic, and catalytic behavior.
Are nanoparticles the same as ordanary particles?
No, nanoparticles are particles that are extremely small, typically between 1-100 nanometers in size, whereas ordinary particles are larger. Nanoparticles exhibit unique physical and chemical properties due to their small size, making them useful in various applications such as medicine, electronics, and environmental science.
What is the difference between concentrated and concentration?
the difference between concentrated and dilute is concentrated is larger while dilute is smaller.
What does concentrated mean?
Concentrated refers to a substance that has been increased in strength or potency by reducing its volume. It usually indicates that a large amount of the original substance has been packed into a smaller volume, resulting in a higher concentration of the active components.
Why do nanoparticles pass through the skin and travel around the body more easily than normal sized particles of titanium oxide?
Because they have red blood molecules of high intermolecular forces with under 20nm which allows it to quickly travel unlike normal sized particles in titanium oxide which are as big as over 300,000nm. Basically as the particles are smaller.
Why do nanoparticles move differently to larger particles?
Nanoparticles have a higher surface-area-to-volume ratio, making them more prone to surface interactions, such as adhesion and attraction, which can affect their movement. Additionally, nanoparticles experience more Brownian motion due to their smaller size, causing them to exhibit different diffusion behaviors compared to larger particles.
What is reducing cost?
Reducing costs is when you make the amount you spend smaller.
What does condense?
It means to make something smaller and denser. In cooking, it is usually liquids that are referred to as 'condensed'.
Why are silver nanoparticles more effective than normal sized silver particles?
Silver nanoparticles have a larger surface area compared to normal sized silver particles, which allows for increased interaction with microbes. This leads to better antimicrobial activity due to the silver nanoparticles being able to release more silver ions. Additionally, the smaller size of nanoparticles enables them to penetrate cell walls more easily, enhancing their effectiveness in killing bacteria and other pathogens.
Are the suns rays concentrated over a smaller surface in winter?
yes they are
Who is stronger killer whale or Obama?
killer whale is stronger then obama because he is smaller.
