What is Nanotechnology?

By Sisi Chen, Nini Dinh, Xhenisa Imaku, and Yingzhu Zhang

Nanotechnology is the understanding and control of matter at the nanoscale and the engineering of functional systems at a molecular scale.

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Uses of Nanotechnology

  • Nanotechnology is used in creating sunscreens. Zinc and Titanium Oxide nanoparticles are used in creating sunscreens, and are said to be more effective than sunscreens that are made without nanoparticles. By using nanoparticles of zinc oxide of titanium oxide, when the sunscreen is rubbed onto your skin, it rubs on clear rather than a white color.
  • There are many uses of nanoparticles in medicine. In the delivery of drugs, the nanoparticles are attracted to diseased cells so healthy cells are not changed and are not recognized foreign by white blood cells. It is also used for attacking cancer tumors, inhaled to stimulate an immune response to fight respiratory viruses, and diagnostic and imaging techniques (quantum dots, MRI, etc.)
  • Nanotechnology can be used to create the world's most powerful non-nuclear air-delivered bomb which is the "father of all bombs", 4 times powerful than U.S. "mother of all bombs."
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· Nanotechnology is already at use in consumer products ranging from stain-resistant and anti-wrinkle textiles in clothing, to cosmetics. If keeping clothes clean isn’t enough, ‘smart clothing’ could monitor your heart rate and other vital signs.

Applications of Silver Nanoparticles

  • Silver nanoparticles are used in coating the surfaces of catheters. Catheters are tubes that enter the body to remove fluids. By applying silver nanoparticles, which have antibacterial properties, they help in preventing infections.

  • Major consumer goods manufacturers like LG and Samsung already produce household items that utilize the antibacterial properties of silver nanoparticles.
  • ====Nanoparticles coated with proteins that attach to damaged portions of arteries could allow delivery of drugs to the damaged regions to fight cardiovascular disease. ====
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  • Silver nanotechnology is used in silver-halide X-rays. Silver nanotechnology is a popular choice because of its accuracy and cost effectiveness - which makes it widely used in developing countries. It provides accurate results for a low cost.

Drawbacks of Silver Nanotechnology

Although sivler nanoparticles kill bacteria, there are times when it may also kill "good" bacteria.


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