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Uses of nanotechnology
Short note on nanotechnology
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CHAPTER 1
INTRODUCTION
1.1 Nanotechnology
Historical background of nanotechnology :
(Feynman,1961; Drexler,2004; Ochekpe et al., 2009)
Nanotechnology can be defined as the technology at the scale of one-billionth of a metre. The matter posses unique properties with nano scale of 1-100 nanometres (nm) size. The large surface area to volume ratio is the key element that is exhibited by the nano material and thus leaded to a variety of manipulations, diversifications and useful applications. The modification of the host material as in layered double hydroxide gives opportunity for the intercalation of the beneficial substance and released it at the defined location at the end of the process.
Nanotechnology is commonly employed in several critical fields such as drug delivery (Li et al., 2004), environmental science (Kuang et al., 2010), engineering catalysis (He et al., 2013; Jinesh et al., 2010) and many other sectors. One of its important application field is in agriculture (Campos et al., 2014; Hussein et al., 2002). Different kinds o...
In the novel, Prey, written by Michael Crichton it pertains to the subject of nanotechnology throughout the whole entire book. The main characters of this novel are the
It is clear that nanotechnology has the potential to revolutionize health care and even transport
Nanotechnology is the manipulation of structures at nano levels. It uses incredibly small materials, devices, and systems to manipulate matter. These structures are measured in nanometers, or one billionth of a meter, and can be used by themselves or as part of larg...
In 2010 two Russian-born scientists pioneered and synthesized a form of “wonder material” that generates heat and electricity at faster speeds, copes with high temperatures, and is almost transparent. Graphene is arranged in a flat hexagon lattice (like microscopic chicken wire) and is one atom thick two-dimensional 〖sp〗^2 bonded carbon. It is the world’s thinnest and strongest material, which can be manufactured into a plethora of provisions that can be used for next generation technology, such as planes, satellites, cars, and computers. However, uses of the material can be expensive and difficult to manufacture for mass production, which is why many of us today do not have access to graphene or use it for various applications in technology in day-to-day life. Graphene is a newly developing material, which is under scrutiny and scientific study in order to integrate it simply and effectively into everyday life.
Although Solar Energy is a flexible source of where energy could be directly or indirectly converted into forms of energy, it’s still not perfect. With its inefficiency, scientists are trying to find alternative solution to store solar cells for as long as possible. The main process of capturing solar energy happens at the nanoscale. With solar cells, it gets more efficient the tinier it gets. The converting rate of solar energy is equally price competitive as fossil fuel, with a dollar per watt of solar energy. With the help of nanotechnology, it could help raise solar energy conversion efficiency and help lower costs making it the ultimate method of raw energy conversion. To make sure the process of generating energy is kept at a low cost and energy output...
Despite being quite small in size, several Nanogenerators when put together can actually produce a high
Metalloids are elements that share properties of both nonmetals and metals. They usually share physical properties with metals and chemical properties with nonmetals. Although they are not as good at conducting electricity and heat as metals, metalloids can still act as semiconductors; they can act as conductors in the right condition. Metalloids are solid at room temperature and are semiconductive. Being semiconductive means that, in the right conditions, metalloids can conduct heat and electricity. Because of their metallic physical properties, metalloids most commonly appear to be lustrous and brittle. Metalloids’ nonmetallic chemical properties allow metalloids to form alloys with metals and be weakly acidic. Metal-metalloid alloys such as pewter and Babbitt can be used in porcelain and electrical motors alongside other uses.
What are Carbon Nanotubes? Carbon Nanotubes are different structural modifications of carbon. They are also cylindrical carbon molecules that have interesting properties that make them potentially very useful in many applications over many fields industry such as nanotechnology, semiconductor, optics and many other fields of materials science, as well uses in architectural area. They can exhibit extraordinary strength and amazing electrical properties, and are efficient conductors of electric current and heat. Their final usage, might may be limiting from their unknown toxicity.
Rapid advancements in nanosciences and nanotechnologies in recent years have opened up new prospects for so many industrial and consumer sectors that they have been regarded as the hotbed of a new industrial revolution.
Design , characterization, production and application of materials devices and systems by controlling shape and size of the nanoscale.
Nanotechnology has found many potential applications in the area of functional foods by engineering biological molecules toward functions very different from those they have in nature, opening up a whole new area of research and development.
Nanook of the North is a documentary film about Nanook, an Inuk man, and his family. The film was released in 1922 and was created by Robert Flaherty. The documentary received a lot of back lash because many of the scenes were believed to have been staged rather than filmed in the moment. Nanook captivated audiences with his heroic demeanor, which was a plus in the film’s success. Throughout the film there are various scenes where Nanook and his family members look directly into the camera, which is a part of the “proof” and “lesson” of documentaries. Proof is how much one can manipulate a documentary, but can still teach the audience a lesson.
Keener, K., Hoban, T. and Balasubramanian, R. 2014. Biotechnology and its applications. [online] Available at: http://www.ces.ncsu.edu/depts/foodsci/ext/pubs/bioapp.html [Accessed: 11 Apr 2014].
Sutradhar, Kumar Bishwajit, and Md. Lutful Amin. “Nanotechnology in Cancer Drug Delivery and Selective Targeting.” International Scholarly Research Notices, Hindawi, 16 Jan. 2014,
Nanotechnology has applications in wide range of fields like pharmaceuticals, electronics, medicine and agriculture including insect pest management. Nanopesticides, insecticides, enhancement of agricultural productivity using encapsulated nanoparticles for slow release of nutrients and water, nanoparticle-mediated gene or DNA transfer in plants to develop insect pest-resistant varieties and use of nanosensors, which would be useful in remote sensing devices required for precision farming are some examples of nanotechnology based insect pest measures.