What is the relationship between particle size and specific surface area?

What is the relationship between particle size and specific surface area?

HomeArticles, FAQWhat is the relationship between particle size and specific surface area?

The applications of nanotechnology, commonly incorporate industrial, medicinal, and energy uses. These include more durable construction materials, therapeutic drug delivery, and higher density hydrogen fuel cells that are environmentally friendly.

Q. What is the surface area of 1cm?

CubeSurface areaSurface area to volume ratio
micro 1 cm x 1 cm x 1 cm66:1
macro 5 cm x 5 cm x 5 cm1501.2:1
multimicro each side made of 5 micro cubes7506:1

Q. What is the surface area to volume ratio of a 1cm cube?

So, for a cube that’s one centimeter on a side, the surface area is 6cm2 (1cm x 1cm x 6), the volume is 1 cm3 (1cm x 1cm x 1cm), and. the surface area to volume ratio is 6 units of surface: 1 unit of volume.

Q. Do nanoparticles have a small surface area to volume ratio?

Nanoparticles have very large surface area to volume ratios compared to the same material in bulk, as powders, lumps or sheets. For a solid, the smaller its particles, the greater the surface area to volume ratio.

Q. Why large surface area is important in nanotechnology?

Why is Large Surface Area Important? The large surface area to volume ratio of nanoparticles opens many possibilities for creating new materials and facilitating chemical processes. In conventional materials, most of the atoms are not at a surface; they form the bulk of the material.

Because surface area is the means by which a solid interacts with its surroundings, be it gas, liquid or other solids. As particle size decreases, the surface area per unit volume (or mass) increases.

Q. What products use nanotechnology?

  • Sunscreen. Nanoparticles have been added to sunscreens for years to make them more effective.
  • Clothing. When used in textiles, nanoparticles of silica can help to create fabrics that repel water and other liquids.
  • Furniture.
  • Adhesives.
  • Coatings for car paintwork.
  • Tennis balls.
  • Computers.

Q. How is nanotechnology being used today?

Q. How do we use nanotechnology in everyday life?

The average person already encounters nanotechnology in a range of everyday consumer products – nanoparticles of silver are used to deliver antimicrobial properties in hand washes, bandages, and socks, and zinc or titanium nanoparticles are the active UV-protective elements in modern sunscreens.

Q. What are the harmful effects of nanotechnology?

The effects of inhaled nanoparticles in the body may include lung inflammation and heart problems. Studies in humans show that breathing in diesel soot causes a general inflammatory response and alters the system that regulates the involuntary functions in the cardiovascular system, such as control of heart rate.

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