Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering. “Nanoscience is the study of phenomena and manipulation of materials at atomic, molecular and macromolecular scales, where properties differ significantly from those at a larger scale”. This science use methodologies from the synthetic chemistry and the material’s chemistry to obtain nanomaterials with specific sizes, shapes, surface properties, defects, self‐assembly properties, designed to accomplish specific functions and uses. Nanotechnology is the manipulation of matter on an atomic, molecular, and supramolecular scale. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative (NNI), which defines nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers. Nanotechnology is the engineering of functional systems at the molecular scale. This covers both current work and concepts that are more advanced. In its original sense, nanotechnology refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products.
An international team of scientists has developed recently what may be the first one-step process for making seamless carbon-based nanomaterials that possess superior thermal, electrical, and mechanical properties in three dimensions. Carbon nanotubes could be highly conductive along the 1 D nanotube length and two dimensional graphene sheets in the 2D plane. But the materials fall short in a three- dimensional world due to the poor interlayer conductivity, as do two-step processes melding nanotubes and graphene into three dimensions.
The research holds potential for increased energy storage in high efficiency batteries and supercapacitors, increasing the efficiency of energy conversion in solar cells, for lightweight thermal coatings and more. The study is published in online journal Science Advances. The scientist are continuing to explore the properties that can be derived from these single 3D graphene layer fibers and are developing a process for making multilayer fibers. http://phys.org/news/2015-09-nanomaterial-d.html
Nanotechnology has become a popular buzzword in science and politics. This technology is considered not only a major source of innovation in technology, medicine and other fields, but also one of the main challenges for the 21st century. Even though the word nanotechnology is familiar to the high-school students, the subject is not widely taught. In order to increase the awareness of nanotechnology, the syllabus should include a topic based on nano, in physics or chemistry discipline.