Nanotechnology

Only available on StudyMode
  • Topic: Nanotechnology, Nanomaterials, Carbon
  • Pages : 7 (2453 words )
  • Download(s) : 377
  • Published : February 11, 2013
Open Document
Text Preview
In recent years with technological advances, science and technology have found ways to deviate into several different aspects such as medicine, electronics, environmental, energy, space, food, chemical sensors, consumer products, molecular manufacturing, micro electromechanical systems, carbon nanotubes, graphene, Bucky-balls, Nano-composites.

In terms of Medicine, researchers have found ways to contribute to cancer cell destruction, disease prevention and resolution, radiation treatments, damage detection, and teeth regeneration. Most applications of nanotechnology in medicine that are being developed involve employing nanoparticles to deliver treatment to specific types of cells. Particles are engineered so that they are attracted to diseased cells. The nanotechnology then allows direct treatment of those cells. This technique reduces damage to healthy cells in the body.

To help aid in cancer destruction, researchers developed two types of nanobubbles. Nano-bubbles, when heated, can destroy cancer cells or can open a temporary hole in a cell wall to allow for drug injection. The researchers are planning this method to selectively destroy certain types of cells, and modify others. Researchers are also using a method being developed to tackle immune diseases by using nanoparticles. Nanoparticles attach to DNA strands and allow white blood cells to quickly tackle the disease. To optimize radiation therapy in the treatment of cancer, nanoparticles are being used to concentrate radiation. Nano particles are being researched for use on other health related problem such as organ damage, more specifically kidney damage, A test for early detection of kidney damage is being developed. Ever had teeth problems? Researchers in nanotechnology are developing ways to regrow the pulp inside teeth, allowing the tissue inside decayed teeth to be regenerated. If these technological gains in nanotechnology are developed, then they will truly make a tremendous impact in maintain a healthy homeostasis.

In terms of Electronics, researches have found ways to create flexible electronic circuits, memory chips, display panels, transistors, and memory devices. Nanotechnology uses Cadmium selenide nanocrystals that are deposited on plastic sheets have been shown to form flexible electronic circuits. Researchers aim to create circuits that are flexible, simply manufactured, and require low power.

Other gains include memory chips that will replace the RAM, random-access-memory, in computers. Sheets of graphene have been placed on mesh wire to work as a transparent, conductive, film in place of epensive indium tin oxide used in flat panel displays. Transistors built from graphene film to achieve higher speeds. Another method for memory devices is being developed to store more information on magnetic nanoparticles.

In terms of the Environment, researchers have found ways to decrease nitrogen oxide pollution, clean up oil spills, trap carbon dioxide, and run reverse osmosis desalination. Nitrogen Oxide pollution is removed from smoke stacks using nanocatalyst. Oil spills can be cleaned up through the use of carbon nanotubes. Carbon nanotubes can become a sponge-like material that can absorb many times its weight in oil.

Using carbon nanotubes as the pores in reverse osmosis membranes, one can easily transport water molecules in and out of plant membranes. Other environmental benefits include using crystals with nanoparticle- sized pores to trap carbon dioxide. The se environmental technologies will help reduce the human footprint in the atmosphere and environment and help further reduce our environmental impact.

In terms of Energy, researchers at Rice have developed electrodes with very high surface area and very low electrical resistance. Researchers at Wake Forest have built light bulbs that can be made into any shape and produce white light that is similar to sunlight. The new bulbs have the advantage of being shatterproof...
tracking img