1. Since the 1970s, the innovative development of nanoparticles is due to a combination of theory and experiments in the fields of
physics
chemistry
materials science
biosciences.
It has Specific phenomena (chemical properties and physical properties)
The optical property of a nanoparticle, have led to new possibilities in various fields. Applications of nanoparticles in various fields require an inexpensive and simple process of synthesizing high quality shaped nanoparticles.

2. Characterization on nanoparticles
Characterization on nanoparticles was done by three tests such as
1. X-ray diffraction method (XRD)
2. Fourier transform infrared spectroscopy (FTIR)
3. Transmission electron microscope

3. It is already making today’s products:
Lighter
Stronger
Faster
Smaller
More Durable
In general, the size of a nanoparticle spans the range between 1 and 100 nm.

4. Metallic nanoparticles have different physical and chemical properties from bulk metals.
It has
lower melting points,
higher specific surface areas,
specific optical properties, mechanical strengths,
specific magnetization
properties that might prove attractive in various industrial applications. However, how a nanoparticle is viewed and is defined depends very much on the specific application. Of particular importance, the optical property is one of the fundamental attractions and a characteristic of a nanoparticle. For example, a 20-nm gold nanoparticle has a characteristic wine red color.

5. The well-studied nanoparticles include
quantum dots
carbon nanotubes
paramagnetic nanoparticles
liposomes,
gold nanoparticles and many others

6. One of the most promising applications of nanotechnology is in the field of medicine. Indeed, a whole new field of “nanomedicine” is emerging. Nanomedicine has been defined as
(the monitoring, repair, construction and control of human biological systems at the molecular level using engineered nano devices and nanostructures).
It can also be regarded as another implementation of nanotechnology in the field of medical science and diagnostics.
Twenty years from now, nanotechnology will have given us specially engineered drugs that specifically target just the mutant cancer cells in the human body, and leave everything else blissfully alone. Cancer will be a thing of the past.