Nanotechnology as Career

Nanotechnology – the science of the miniature, and the technology of the future – is one of the most exciting and wide area of research which may lead to the greatest technological advances of the 21st century. It is a global phenomenon and an emerging field, that finds its way into a myriad of industrial applications spanning across all areas of science and technology. A form of molecular engineering, it is the technology associated with the creation and scrutiny of minute objects, measuring between 1 to 100 nanometers. Nanotechnology can be defined as the application of science, engineering and technology to develop novel materials and devices in different fields in the nano-range.

‘Nano’ in Greek means dwarf. Nanometer (nm) is a unit of measurement used to measure very small particles like atoms and molecules. One nanometer is equal to one-billionth (10-9) of a meter. Entirely different from bulk material, nano-materials are 5,000 to 50,000 times smaller than the diameter of a human hair. These light but strong, transparent materials are very active and aggressive in any chemical reaction. Nano-materials can be mixed with strong or weak materials to make them thousand times stronger and more efficient. Carbon and diamond are super examples of nano-materials. The concept of Nanotechnology originated in 1959 and was founded by the American physicist Richard P Feynmam. But the term ‘Nanotechnology’ was first used in 1974 by Japanese scientist Prof. Norio Taniguchi at the Tokyo Science University. However it was introduced to the world in 1986 by K. Eric Drexler, an American Engineer and the founder of Foresight Nanotech Institute.

Nanotechnology is a unique and special branch of science that essentially combines physics, chemistry, biology, engineering etc. Sometimes known as molecular manufacturing, it deals with the design and manufacture of extremely small electronic circuits and mechanical devices built at the molecular level of matter. The application of Nanotechnology will open new avenues of research in the world of science and engineering in almost every field, from medicine to fabrics. Due to this, the relatively new field is fast emerging as the favorite of all kinds of technological arena and will be one of the most significant enabling technologies in the future.

Even though the field is popular abroad, it is quite recently that Indian industries have started realizing the commercial viability of Nanotechnology. In India, Nanotechnology is at its infancy stage and is targeted towards the main streams like electronics, healthcare markets, and other industrial products. Many scientific institutions have been doing Research and Development (R&D) in this field. The scope and application of Nanotechnology is tremendous and mind-boggling and it is one of the hottest career option available to Indian Engineering graduates. It is an apt career for those who have a scientific bent of mind and a passion for solving mysteries of the minutest molecules. Students with a science and engineering background and even mathematics with physics background can pursue Nanotechnology as a career. Candidates with M.Tech in Nanotechnology are in great demand both in India and abroad.

It is a powerful technology which aids the development of products with futuristic performance. All major sectors of life will be effected by this new area. The two major categories of Nanotechnolgy are Nanoscale technology and Molecular manufacturing. Nanoscale technology covers small structures and can be used for introducing stronger materials, better medicines, faster computers and so on. Molecular manufacturing is an attempt at building mechanical and chemical manufacturing systems that join molecules together.

Nanofactory Animation

Welcome to nanofacs.com – Nanofacs is the short term for nanofactories. A nanofactory is a proposed system in which nanomachines (resembling molecular assemblers, or industrial robot arms) would combine molecules to build larger atomically precise parts. These, in turn, would be assembled by positioning mechanisms of assorted sizes to build macroscopic (visible) but still atomically-precise products. A functioning nanofactory could create virtually any product at the cost of only the input raw material and energy.

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Is Nanotechnology Totally Useless According to You?

Nanotechnology is the science and art of constructing functional and sometimes powerful devices by manipulating single atoms until they are molecularly sized. In order to achieve some relativity on this, one must be aware that a molecule is measured in nanometers, which is, essentially, one billionth of a meter – an atom is ten times smaller than that.

As a revolutionary concept, nanotechnology covers a wide spectrum that can often be a double edged sword. In the right hands, the extreme capability of nanotechnology can be a positive contributor to medical advancements, environmental cleansing, energy conservation and many other areas that can largely improve human existence on our planet. The down side to nanotechnology is that in the wrong hands it can be a destructive force that may ultimately lead to the annihilation of human existence and even of our planet.

There are varying schools of thought on the benefits versus the threats of nanotechnology pursuits. One outlook is that replicating nanostructures could gobble up the entire planet in about three hours flat while another is that nanotechnology as a science could revolutionize medical treatments for conditions that are presently incurable using standard technology.

Nanotechnology has been credited with many beneficial improvements to existing products like fabrics that totally resist staining, scratch resistant eyewear and sunscreen that can endure greater exposure to the elements for longer periods of time. In addition, creating smaller, more powerful devices via this technology has been a positive contributor to revolutionary advancements in computers, more improved diagnostic medical testing and more efficient means of removing toxicity from areas afflicted with environment contamination. Anyone would have to agree that these advantages are certainly not totally useless attributes of nanotechnology.

Additionally, nanotechnology has been credited with creations from a biodegradable plastic made from waste products produced from fruit growing operations to experimental replacement bone tissue that will not be so easily rejected by the human body after transplant. The advantage of such a product will result in easing human suffering while actually contributing to an extended life span. Anybody wanting to improve on humanity would be hard pressed to declare breakthroughs like this as totally useless.

Despite its propensity to do good, nanotechnology could also lead to the creation of more compact and essentially more dangerous weaponry, which, if it fell into the wrong hands could lead to the development of chemical and biological weapons that are far more deadly, harder to avoid and much easier to conceal than conventional warfare.

Naysayers are quick to point out additional negativities of nanotechnology such as the ability of the military or other covert government organizations to conduct continuous, surreptitious surveillance on each and every citizen. Some go even further by concentrating on the hypothesis that nanotechnology, when used to advance greed and power, could result in total physical and/or psychiatric control of one faction over another.

Will nanotechnology ultimately result in ecophaghy – the consumption of the entire worldwide ecosphere – or will all these doomsday predilections just be totally useless fodder for overactive imaginations?

The Dilemma of Nanotechnology – Science Vs. Ethics

What is Nanotechnology and why should I care about it?

Nanotechnology, referred to commonly as molecular manufacturing, is making huge strides within scientific and government communities. Despite its growth and the potential impact it will have on society at large, too little emphasis has been placed on the ethical considerations of nanotechnology and the ever-rippling effects of its applications.

The control of molecular matter has led to amazing breakthroughs in medical treatments, which of course is a benefit to mankind. However, the military is hard at work creating powerful weapons that are no larger than any known bacteria. In addition, molecular level surveillance techniques for surreptitiously keeping track of other organizations and individuals are changing the face of military, law enforcement and humankind in general.

Just like with human genome capability and stem cell research breakthroughs, scientists, governments and individuals need to weigh the obvious advantages of nanotechnology against the residual disadvantages. Although the power of nanotechnology is indisputable, the possibilities of irreversible harm from its indiscriminate use must also be taken into consideration.

What are the Social and Ethical Implications of Nanotechnology?

This is where social and ethical dilemmas present themselves. As life saving tools, nanotechnology is unsurpassed in its promise of an absolute revolution for medical treatment of previously incurable or untreatable conditions.

Conversely, when this technology is used to manufacture miniature weapons or explosives the infinite possibilities of far-reaching repercussions is a very real prospect. Given that researchers fear that nano-machines can become self replicating, theories abound that their by-product, known in scientific circles as “the gray-goo scenario”, could result in unheard of havoc. In addition nanotechnology has the potential to erode our privacy and freedom by providing human rights violations via monitoring and tracking devices that can invade our everyday lives without our knowledge.

For this reason the social and ethical issues relevant to nanotechnology must be addressed before its many technological innovations are unleashed upon society.

Every action has a reaction and nanotechnology is no different. Whether the anticipated power of nanotechnology ever reaches fruition, as a society we must be prepared to deal with any fallout that may arise from its inception and universal acceptance.

There is no doubt that development of nanotechnology and its many proven advantages, is going to continue, yet as a responsible society we must prepare a social policy that will address the benefits in correlation with the ethical consequences of it effect on life as we know it. Why should society be concerned with the Fallout?

When trying to incorporate nano-technological advances into society, there are a myriad of items that require intensive study, such as: issues regarding equity of disbursement, privacy rights of individuals and/or corporations, security considerations, the effect on the environment and the social and ethical impact on the human race.

As responsible humans who are concerned with passing a legacy of improvement down to upcoming generations, it is essential that we develop and create guidelines and working hypotheses that address the far reaching impact that nanotechnology can have on human lives and on the universe itself.

Great Things Come in Small Packages: Nanotechnology and Energy

If current news is any indication, Nanotechnology is poised to play a significant role in the development of clean, less expensive energy. The potential of nanotechnology for solving some of today’s greatest energy challenges is vast.

Nanotechnology refers broadly to a field of applied science and technology whose unifying theme is the control of matter on the molecular level in scales smaller than one micrometer, normally 1 to 100 nanometers, and the fabrication of devices within that size range. For scale, a single virus particle is about 100 nanometers in width.

Encompassing nanoscale science, engineering and technology, nanotechnology involves imaging, measuring, modeling, and manipulating matter at this length scale.”

At this size dimension, the physical, chemical, and biological properties of materials differ in fundamental and valuable ways from the properties of individual atoms, molecules, or bulk matter. The properties displayed at the nanoscale create a host of potential innovative uses for nanomaterials. One of these uses includes the creation of exciting and revolutionary energy applications. These potential nanoscale energy applications apply to a host of different sources of energy, including hydrogen, geothermal, unconventional natural gas, fission, and solar energy.

While hydrogen is an energy storage medium, it is not a primary energy source. Therefore, full realization of hydrogen as an alternative energy source is frustrated by gaps in technology, which do not precipitate the efficient and cost-effective storage and transport of hydrogen. Nanoscience provides new approaches to basic questions about the interaction of hydrogen with materials to enable the efficient and cost-effective storage and transport of hydrogen.

Applying nanotechnology to geothermal energy increases the opportunities to develop geothermal resources by enhancing thermal conductivity or aiding in the development of noncorrosive materials that could be used for geothermal energy production.

The recovery of unconventional sources of natural gas is yet another potential application of nanotechnology. Unconventional sources of natural gas include tight sandstones, shale gas, and coal bed methane. Nanotechnology applications may prove useful in accessing or exploiting these unconventional natural gas sources. For instance, nanocatalysts and nanoscale membranes may prove useful in assisting in Gas to Liquids production. Furthermore, certain nanostructured materials may assist in compressed natural gas transport.

Nanotechnology may also prove useful in solving the waste problems of the nuclear energy industry. For instance, certain nano-engineered barriers may prove useful in preventing the migration of or containing nuclear waste products.

Nanotechnology applications may assist in making solar energy more economical. Nanoscience can be utilized to improve the efficiency of photovoltaic cells, creating cost-efficient conversion systems, effective solar power storage systems or even the generation of solar energy on a larger scale. For instance, “nanopatterning” can artificially change the optical properties of materials to allow light to be trapped in solar cells.

Nanotechnology might someday allow for more powerful, more efficient and less expensive energy generation, storage transmission and distribution. Nanotechnology is being used to optimize production from existing energy sources and to exploit new sources such as geothermal, liquefied natural gas, nuclear and solar energy. Nanotechnology is also improving and opening new possibilities for the transmission and storage of energy, especially electricity and possibly hydrogen in the future. Nanotechnologies have the potential to reduce energy consumption by making it possible to manufacture lighter and/or more energy efficient cards and appliances. Even though nanotechnology is a relatively young field, the potential for future nanotechnology applications within the energy industry could turn out to be one of the most important technological developments of our time.