this ppt gives information regarding the beautiful structures of nanomaterials

1. BEAUTIFUL MIRACLES OF
NANOMATERIALS

3. Dr B SREERAMA MURTY
Mr. G V S R PAVAN KUMAR

4.  The present scenario of science is revolving
around the “power of being small”.
 According to Indian epics, VAMANA the
incarnation of MAHAVISHUNU, with the SMALL
body has proved his versatility and power, by
asking three foot of land.

6.  By nature the SMALL always neglected, but they
have their own significance.
 This power of small things made the scientists to
concentrate on the improvisation of various
aspects related to scientific advancements.
 During the process of developments, a wonder
has made its foot step into the material science
division of science is NANOMATERIALS

7.  The science of NANOMATERIALS is 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.
 In recent years, it was observed an increasing
developments in the field of nanomaterials.

8.  When the size of the particles are reduced to
nanoscale, can suddenly show very different
properties compared to what they exhibit on a
macro scale, enabling unique applications.
 When the particle size is decreased, it’s surface-
to-volume ratio increases, leading to various
special applications.

9.  opaque substances become transparent (copper)
 inert materials attain catalytic properties (platinum)
 stable materials turn combustible (aluminum)
 solids turn into liquids at room temperature (gold)
 insulators become conductors (silicon).

10.  These NANOMATERIAL are synthesized by
various methods including vapor phase deposition
etc.,
 After their synthesis these materials are
characterized. During the process of
characterization…………………..

12.  These include……..
 NANOFLOWER
 NANOTREE
 NANOBOQUET
 NANOCUPS
 NANORINGS
 NANOSUNFLOWER
 NANOTEDDYBEAR

13.  A nanoflower, in chemistry, refers to a
compound of certain elements those results in
formations which in microscopic view resemble
flowers or, in some cases, trees that are called
nanobouquets or nanotrees.
 And all the other are named based on their
appearance and structure.

20. Nanoflowers of silicon
carbide, synthesized
with widths less than a
human hair

22. Nanoflower The
crystalline wurtzite
indium nitride (InN)
nanoflower was
synthesized via
molecular beam
epitaxy (MBE)
processes, using pure
indium and a high
efficient nitrogen
source, hydrazoic acid
(HN3).

23. 'nanoflower' grown by deposition of
antimony on a smooth carbon surface.

24. Nano Teddy Bear The scanning electron microscopic image
(taken using a FESEM LEO 1530) shows the ZnO
nanostructures on an indium oxide coated glass substrate
deposited at 70oC by using a facile electrochemical deposition
technique.

25.  All these nanomaterials are characterized by
various instrumental methods…they are
 SCANNING ELECTRON MICROSCOPE
 X-ray DIFFRACTION METHODS

26.  A scanning electron microscope (SEM) is a
type of electron microscope that images a sample
by scanning it with a high-energy beam of
electrons in a raster scan pattern. The electrons
interact with the atoms that make up the sample
producing signals that contain information about
the sample's surface topography, composition,
and other properties such as electrical
conductivity.

30.  X-ray scattering techniques are a family of
non-destructive analytical techniques which reveal
information about the crystallographic structure,
chemical composition, and physical properties of
materials and thin films. These techniques are
based on observing the scattered intensity of an
X-ray beam hitting a sample as a function of
incident and scattered angle, polarization, and
wavelength or energy.

32.  These are some of the BEAUTIFUL MIRACLES of
NANOMATERIALS up to my knowledge…… I
shared with all of you…..
 WE WISH THESE MAKE THE WORLD OF
SCIENCE MORE BEAUTIFUL……………