In most simple words, Nanotechnology can be defined as the study and application of materials at the atomic and molecular level.Nanotechnology involves the ability to see and to control individual atoms and molecules, which are invisible to our naked eyes. Nano – scale materials were being used for many decades, but it is not that […]
In most simple words, Nanotechnology can be defined as the study and application of materials at the atomic and molecular level.Nanotechnology involves the ability to see and to control individual atoms and molecules, which are invisible to our naked eyes. Nano – scale materials were being used for many decades, but it is not that scientists are developing this interesting field of science, and realizing its potential.
To exploit the benefits of nanotechnology, scientists need to know how to accurately tailor the essential structures of materials at the nano scale to achieve specific properties, thus greatly extending the well – used toolkits of materials science.Materials can then be effectively made more stronger, lighter, more durable, and more reactive.
We use many products and materials daily, which are crafted using nano science, and made up of nano materials. Below are few examples to justify this:
Meeting the energy demands of the rapidly increasing population, and the expanding industrial sector is becoming difficult as the natural resources and depleting at an alarming rate. We need a reliable alternative to the energy sources. Scientists are constantly trying to come up with cleaner energy alternatives, which will be more affordable and less toxic. Here is where the nano technology helps!
Nanotechnology is also being used in the medical science, where it is more popularly termed as “biotechnology”. In medical field, nano science is helping in detection of various viruses, and is also providing nano – engineered gadgets which can help in their cure. Fabrication of nano tubes and wires has been made easier, and these tubes are being used extensively for health treatments. Optical tubes of very fine radius can provide the internal view of a human body and this helps in better diagnostics.
Extensive use of nano materials in every field is raising a question about its safety. Some nano particles are found to have unintended health effects. For example, a certain material used in fabrics to terminate bad odour is release during wash, which then enter the streams through sewage lines, and poses threat to life of bacterias which are important for aquatic biological cycles. Some scientists have successfully conducted a research which shows that nanafibres can cause pulmonary diseases in the longer run, if inhaled in excess.
Experts say the governments should regulate the expansion of nanotechnology,which is the only way to exploit it benefits without impending a negative effect on environment as well as human health. There are many fields where experiments are going with nanomaterials so as to find better alternatives to the current technology, and certainly care must be taken with every advancement mankind makes!