considering the complexity of the nanocomposite,
nanotechnology and nanoscience field.
-Nano Biotechnology definition:
Bio-nanotechnology is concerned with molecular scale properties and
applications of biological nanostructures and as such it sits at the interface between the chemical,
biological and the physical sciences.
Nanomaterials that combine one or more separate components in order to obtain the
best properties of each component (composite).
In nanocomposite, nanoparticles (clay, metal, carbon nanotubes) act as fillers in a matrix, usually polymer matrix.
Application of nanoscience and nanotechnologies techniques
in the field of electronic. Nanotech applications in the field of electronics are especially promising:
computer chips, optoelectronics, information storage, nanocomputer, sensors.
Are devices built from individual atoms.Their size is measured in nanometers and they are built from individual atoms.
The idea is that the assembler will be able to rearrange atoms from raw material
in order to produce useful items.
Manufacturing at the nanoscale. The industrial application of
nanomaterials can be defined as materials which have structured
components with at least one dimension less than 100nm. Materials that have one dimension in the nanoscale
are layers, such as a thin films or surface coatings. Some of the features on computer chips come in this category.
Materials that are nanoscale in two dimensions include nanowires and nanotubes. Materials that are nanoscale
in three dimensions are particles, for example precipitates, colloids and quantum dots
(tiny particles of semiconductor materials).
Nanocrystalline materials, made up of nanometre-sized grains, also fall into this category.
Application of nanoscience and nanotechnologies techniques in the field of medecine.
Areas such as disease diagnosis, drug delivery and molecular imaging are being intensively
researched. Medical-related products containing nanoparticles are currently produced.
One nanometre (nm) is equal to one-billionth of a metre, 10-9m.
Atoms are below a nanometre in size, whereas many molecules, including some proteins, range from a nanometre upwards.
Nanometrology is the science of measurement at the nanoscale level.
Nanometrology has a crucial role in order to produce nanomaterials and devices
with a high degree of accuracy and reliability (nanomanufacturing).
Nanoparticles are particles of less than 100nm in diameter that exhibit new or
enhanced size-dependent properties compared with larger particles of the same material.
Scale with nanometre order of magnitude.
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.
Nanostructure is a structure with arrangement of its parts in the nanometre scale.
-Nanotechnologies Nanotechnology definition:
Nanotechnologies are the design, characterisation, production and
application of structures, devices and systems by controlling shape and size at nanometre scale.
-Nanotube definition (Carbon nanotubes):
Carbon nanotubes (CNTs) were discovered by
Sumio Iijima in 1991. Carbon nanotubes are fullerene-related structures which consist of rolled graphene sheets.
There are two types of CNT: single-walled (one tube) or multi-walled (more tubes).
Both of these are typically a few nanometres in diameter and several micrometres to centimetres long.
Nanowires are ultrafine wires or linear arrays of dots, made from a wide range of materials.
Nano Electronics Mechanical System.