A basic
definition of 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.
Nanotechnology as defined by size is naturally very broad,
including fields of science as diverse as surface
science, organic chemistry, molecular biology, semiconductor
physics, micro fabrication, etc.
The associated research and applications are equally diverse, ranging from
extensions of conventional device
physics to completely new
approaches based upon molecular
self-assembly, from developing new
materials with dimensions on the
Nano scale to direct control of
matter on the atomic scale.
Implications of nanotechnology become very debatable
concerns within the scientists in nowadays. Nanotechnology may be able to
create many new materials and devices with a vast range of applications, such as in medicine, electronics, biomaterials and energy production. On the other
hand, nanotechnology raises many of the same issues as any new technology, including
concerns about the toxicity and
environmental impact of Nano materials, and their potential effects on global
economics, as well as speculation about various doomsday scenarios. These concerns
have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted.
No comments:
Post a Comment