Showing posts with label Nanotechnology. Show all posts
Showing posts with label Nanotechnology. Show all posts

Friday, 3 June 2011

The Evolution of High Technology


High technology or high tech refers to the kind of technology that is cutting edge, advanced, and currently available. High technology does not refer to a class of technology because all kinds of technology have been considered high tech at one point, before being considered low tech or obsolete as time passes. It really has no definite definition and as long at is currently available, marketing firms mark new products as high technology. The term high technology or high tech first emerged in the 1950s in a New York Times story alluding to the atomic energy that was advocated in Eastern Europe.


The use of high technology is often directed to the one with the most potential for advancement and growth in the future. This is true with economy's technology sectors, which develop advanced technology. This perception leads to investment that can also come as a risk when expectations fail and the potential is not realized. In this case high technology can also become a high risk at the same time, opening doors for high profits.


High technologyhas become an international phenomenon all over the world through the information technology and the Internet. Today's businesses all are able to connect with each other 24/7. High technology sectors include Aerospace, Artificial Intelligence, Electrical Intelligence, Computer technology software, Nuclear Physics, Telecommunications, Robotics, and Nanotechnology.


High technology is also apparent in today's competition between and within industries. An example of this is the manufacturing of sports footwear apparel and the growing competition between the brands involved. In catering to the needs of its market, top sports brands for footwear also grow competitively in terms of producing products from general shoes to different kinds of sports shoes, evolving from their looks and engineering, catering from the young market to the older ones. Even its services and packaging have developed to address both market needs and to position respective brands ahead in the game. The development of technology in this industry has even adjusted to the needs of the market. Today, brands tap into their fashion and style requirements. This competitive scenario contributes to growth not just of target market, the brands and their industries but also to science and technology as a whole.



High technologyand modern progression of discovery is motivated by capitalism and industrial evolution as well as the patent system. The varied forms of capitalism have made it possible to market products for a substantial return of investment. Thus, there are more means and opportunities to produce and market more products. With advancements coming from all sectors in society the market is bigger and larger. Technology in manufacturing also makes mass production possible, which cannot be compared to manual production.


Urbanization and industrial revolution found people moving to urban cities with larger population widening the chances for profits. The patent method protects the investors in terms of intellectual properties and trademarks, which is important in achieving their business goals and developing their merchandise. High technology has indeed made an impact in the current era driving healthy competition to gain better results in personal and business advancements.


Wednesday, 1 June 2011

Amazing Applications of Nanotechnology


The field of science which looks forward a boom every day is definitely, nanotechnology. It deals with particles that are very small in size( about 10^-9 m).The main idea upon which nanotechnology relies is that the original properties (either physical or chemical) of a substance gets changed when the size of the substance is reduced to nanoscale. Below given are a few interesting applications of nanotechnology...


• When water is simply allowed to flow through copper nanotubes, an emf is generated along the surface of the tubes( thereby generating current). The current produced is directly proportional to the speed of the water.

• Gold and silicon nanoparticles are red but their original colour in bulk state is yellow and grey respectively. These elements have their melting points 4 times while being in the nanoscale.


• Nanocrystals made of metals and semiconductors exhibit superior chemical, electric, optical, magnetic and mechanical properties.

• Photovoltaic cells (which generate current from solar energy), made up of nanoparticles absorb more energy than the thin film sheets of normal semiconductors.

• Within the polymer matrices of plastics, clay nanoparticles are embedded for additional strength (extra 100%) and reinforcements.

• Dendrimers are nano materials made with the structure of a bacterium (E.Coli). Its flagellum is used for quicker transportations through fluids and so dendrimers are used in the Smart Drug Delivery System in our body.

• Transistors made of semiconductors in nanoscale provide higher dielectric constant and electron mobility making them more efficient. Nanoelectronics is based upon such transistors and other devices.

• Recently, a programmable molecular computing made of enzymes and DNA molecules is been invented. It doesn't use any of the semiconductor devices.


Marvels from nanotechnology exist in both sides. It is wonderful as much as it is dangerous. Researches on the negative effect of the nano materials are taken into prime considerations before approving a technology. A few disadvantages are:

• High surface to volume ratio makes almost all nanoparticles highly reactive. And so, it is very doubtful that all reactions can be controlled to the required level.

• Certain nanoparticles in air can penetrate cells and tissues and can cause severe biochemical damage in functioning organs.

• Hydrocarbon nanoparticles (from pollution) can damage cardiovascular system.


• Nanoparticles of oxides and dioxides of metals cause DNA damage which may affect one's descendants (a heredity disease).

On enjoying the benefits of this immensely powerful technology, we must not let loose about the precautions we must take or follow. This doesn't mean research interest over nanoscience should reduce. Just that all factors are to be considered at an optimum level to gain most profits and least losses from it...