This document discusses nanomaterials and their applications. It begins with definitions of nanotechnology and nanomaterials, noting that nanomaterials have sizes between 1-100 nanometers. At the nanoscale, materials exhibit different physical and chemical properties than at larger scales, and their properties can be controlled. Some examples of nanomaterials discussed include nanotubes, nanorods, nanowires, and quantum dots. The document outlines a variety of applications of nanomaterials in areas like batteries, sunscreen, biomaterials, energy, and nanomedicine including targeted drug delivery using magnetic nanoparticles.

1. NANO MATERIALS AND ITS APPLICATIONS
Presented by
A. NAVEEN
S.RESHWANTH
PAAVAI ENGINEERING COLLEGE, (AUTONOMOUS)
PACHAL, NAMAKKAL DT.
.

2. INTRODUCTION
NANO- Greek Word for “Dwarf”
A unit of measurement indicating
one billionth of meter.

3. INTRODUCTION
Size comparison
(1,000–
10,000nm)
0.1 nm

4. NANOTECHNOLOGY- Definition
The measurement, prediction and construction of materials
on the scale of atoms and molecules.
Ability to
understand
control
manipulate
the matter at the level of
atoms and molecules

5. larger surface to volume ratio
REDUCED DIMENSIONS LEADS

6. WHY NANOMATERIALS?
Batteries
Sun Screen
In nanoscale science – WHAT CAN
BE DELIVERED?
 Fundamental
 Novel techniques of
synthesis
 Relationships
 Theoretical predictions
 Nanomaterials possess improved physical and chemical
properties.
 Properties change with particle size, and can be controlled by
manipulating the building blocks.
 Functional nanomaterials, nanomaterials having essential functional
properties, - useful in processes such as adsorption, ion-
conducting, separation, catalysis, biomaterials and biosensing, not
in structural and electronic applications.
In nanomaterials development
 Low cost and high rate production of
nanoparticles
 Tailor-designed carbon nanotubes
 Novel biomaterials (orthopedic, tissue repair)
 Highly effective and long lasting catalysts and
nanocomposites for energy applications

7. BUILDING BLOCKS
 Micelles
 Fullerenes
 Quantum dots
 Nanocrystals
 Dendrimers
 Liposomes
 Nanowires
 Nanotubes
 Block copolymer
1. Nanotubes
2. Nanorods
3. Nanowires
4. Nanocrystals
5. Nanoshells
6. Nanoclusters
7. Nanoflakes
8. Nanofibers
9. Nanofilms
10. Nanocombs
11. Nanowires
12. Nanorings
13. Nanobots
14. NanoCapsules
15. Dendrimers ………!
Nanomaterials as building blocks for all kinds of
technologies from quantum computing to opto-
electronics.

8. NANOMATERIALS & NANOSTRUCTURES
Nanostructures of ZnO synthesized
UNDER CONTROLLED CONDITIONS
by THERMAL EVAPORATION of solid
powders
* J.S. Murday, AMPTIAC Newsletter 6 (2002) (1), p. 5.
FIELD PROPERTY SCALE LENGTH
Electronics Electronic wavelength 10–100 nm
Inelastic mean free path 1–100 nm
Tunneling 1–10 nm
Magnetics Domain wall 10–100 nm
Spin-flip scattering length 1–100 nm
Optics Quantum well 1–100 nm
Eva.Wave decay length 10–100 nm
Metallic skin depth 10–100 nm
Superconductivity Cooper pair coherence 0.1–100 nm
Meisner penetration depth 1–
100 nm
Mechanics Dislocation interaction 1–1000 nm
Grain boundaries 1–10 nm
Crack tip radii 1–
100 nm
Nucleation/growth defect 0.1–10 nm
Surface corrugation 1–10 nm
Catalysis Surface topology 1–10 nm
Supramolecules Kuhn length 1–100 nm
Secondary structure 1–10 nm
Tertiary structure 10–1000 nm
Immunology Molecular recognition 1–
10 nm
Characteristic lengths in
solid-state science
model*

9. (APPLICATIONS OF
NANOMATERIAL)

10. Applications of nanotechnology

11. NANOMEDICINE
Nature Nanotechnology | VOL 2 | AUGUST 2007 | www.nature.com/naturenanotechnology
• Magnetic-field guided drug delivery (MDD) with
magnetic aerosols.
• Super paramagnetic nanoparticles are placed in
microdroplet aerosols (green) and delivered along
the airways (brown) toward the lungs (grey).
• A localized magnetic field causes large numbers
of nanoparticles to accumulate in a specific region,
shown here in red.
Super
paramagnetic
Nanoparticles
γ – Fe2O3 Colloidal Ag modified γ – Fe2O3

12. THANK YOU
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