A cluster of a few atoms behaves very differently froma bulk meterial.Copper is an opaque substance in bulk but it becomes transperant when the size reaches about a few nanometer .a stable material like alluminium becomes combustible one.Nanomaterials is a field that takes a materials science-based approach to nanotechnology. It studies materials with morphological features on the nanoscale, and especially those that have special properties stemming from their nanoscale dimensions. Nanoscale is usually defined as smaller than a one tenth of a micrometer in at least one dimension,[1] though this term is sometimes also used for materials smaller than one micrometer.
On 18 October 2011, the European Commission adopted the following definition of a nanomaterial:[2]
A natural, incidental or manufactured material containing particles, in an unbound state or as an aggregate or as an agglomerate and where, for 50% or more of the particles in the number size distribution, one or more external dimensions is in the size range 1 nm – 100 nm. In specific cases and where warranted by concerns for the environment, health, safety or competitiveness the number size distribution threshold of 50% may be replaced by a threshold between 1 and 50%.
An important aspect of nanotechnology is the vastly increased ratio of surface area to volume present in many nanoscale materials, which makes possible new quantum mechanical effects. One example is the “quantum size effect” where the electronic properties of solids are altered with great reductions in particle size. This effect does not come into play by going from macro to micro dimensions. However, it becomes pronounced when the nanometer size range is reached. A certain number of physical properties also alter with the change from macroscopic systems. Novel mechanical properties of nanomaterials is a subject of nanomechanics research. Catalytic activities also reveal new behaviour in the interaction with biomaterials.
Reinste Nano Ventures emphases the significance of purestNanomaterials with uniform composition free from any adulterants for class research and production purposes. In Reinste Nano ventures we ardently believe that innovation and differentiation are the fundamental components of growth and enlightenment of any organization.
With a portfolio of products catering to the needs of almost all scientific research communities in Nanotechnology sphere, we help our customers by delivering the most pertinent products with the assurance of quality. We rejoice in the fact that our products and services add values to our customers and in progression we build a priceless relationship of eminence with precision.
Thus, together with researchers across the world, we create a conducive platform for growth and partnering in era of nano-revolution by providing the best of materials, technologies and knowhow available to our clients
With a portfolio of products catering to the needs of almost all scientific research communities in Nanotechnology sphere, we help our customers by delivering the most pertinent products with the assurance of quality. We rejoice in the fact that our products and services add values to our customers and in progression we build a priceless relationship of eminence with precision.
Thus, together with researchers across the world, we create a conducive platform for growth and partnering in era of nano-revolution by providing the best of materials, technologies and knowhow available to our clients
No comments:
Post a Comment