(The Gist of Science Reporter)  Applications Based On Nanotechnology  [DECEMBER-2019]

(The Gist of Science Reporter)  Applications Based On Nanotechnology


Applications Based On Nanotechnology

  • Carbon nanotubes are used in products ranging from paints and textiles to medical diagnostic tools and components of a future quantum computer because they have remarkable properties such as very high elastic strength alongside low mass density or very high current densities with no heat loss.
  • Graphene is used in transparent electrodes for solar cells. LCD, robust non-volatile atomic switches, chemical and biological sensors and in spintronic devices.
  • Semiconducting nanowires are highly versatile optoelectronic components for a wide variety of applications such as polarisation-sensitive photodetectors and arrays with subwavelength resolution; optical modulators and nano-waveguides, nano-LEDs and nano-lasers, solar cells and biomedical sensors.
  • Nanowhiskers on clothes create a cushion of air around the fabric so that liquids cannot stain them.
  • Nanoparticles of silver embedded into fibres have anti-microbial action.
  • Silver nanoparticles are incorporated in apparel, footwear, paints, wound dressings, appliances, cosmetics and plastics for their antibacterial properties.
  • New and cheap solar cells use nanoparticles of titanium oxide coated with dye molecules to capture the energy of visible light and convert it into electricity.
  • Special filters using nanomaterials can remove objects as tiny as viruses from water.
  • Nanoenhanced paints can reduce the emission of nitrogen oxides, hydrocarbons, and carbon monoxide in the atmosphere; addition of nanoparticles makes paint scratch proof, easy cleaning, air purifying, UV resistant, water repellent, flame resistant and anti-bacterial.
  • A novel catalytic nanosheet form of a nickel molybdenum-nitride, a thousand times cheaper than traditional platinum, is the new model for harvesting hydrogen from water for use as fuel.
  • Adding a little boron to carbon while creating nanotubes produces solid, spongy, reusable blocks that can absorb large quantities of oil spilled in water.
  • Nanoenhanced construction ceramics such as floor and wall tiles and sanitary ware have self-cleaning, anti-bacterial, hygienic and scratch resistant features.
  • Nanoenhanced cement obtained by addition of nanoparticles like nano silica (silica fume), nanostructured metals, CNTs and carbon nanofibres gives stronger, more durable, self-healing, air purifying, fire resistant, easy to clean and quick compacting concrete.
  • Nanotechnology based smart windows have energy-saving, easy cleaning, UV controlling and photovoltaic properties.
  • Addition of tamed silica nanoparticles makes glasses fire resistant.
  • Nanotechnology can facilitate different forms, insulation solutions like coatings, vacuum insulated glazing, and nanofoams.

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Courtesy: Science Reporter