A brief presentation on Nanotechnology by Richik Mondal, proudly presented by Biomedicz (www.biomedicz.com).

1. Presented by : Richik Mondal
Department: BME
Netaji Subhash Engineering College

2. • Nanotechnology is engineering at the molecular
(groups of atoms) level
• It is the collective term for a range of technologies,
techniques and processes that involve the
manipulation of matter at the smallest scale (from 1 to
100 nm2)
With 15,342 atoms, this parallel-shaft speed
reducer gear is one of the largest
nanomechanical devices ever modeled

3. Human Hair 75 µm
FeatureSize
10nm
100nm
1µm
10µm
1nm
0.1nm
100µm
NANOTECHNOLOGY:SIZE & SCALE
Plant and Animal Cells
Most Bacteria
Transistor
0.18µm
Virus
Proteins
Lysozyme
Carbon
Nano-tubes

4. PIONEERS OF
NANOTECHNOLOGY
In 1959 Richard Feynman
presented ideas for creating
Nano scale machines
Norio Taniguchi
introduced the term
‘nanotechnology’
1980s, development in this field was greatly
enhanced with advances in electron
microscopy

5. APPROACHES IN
NANOTECHNOLOGY
Top-down Approach
Creating Nano-scale materials by
physically or chemically breaking
down larger materials
Bottom-up Approach
Assembling Nano materials atom-
by-atom or molecule-by molecule
(self assembling)

6. ASPECTS OF
NANOTECHNOLOGY
THREE DISTINCT ASPECTS
Direct
Application of novel,
Nano engineered
artifacts
Ex : Electronic &
photonic circuits
Indirect
Progressive
miniaturization of
existing technologies
Ex : Nano bots,
cosmetics
Conceptual
All materials &
processes are
considered from a
molecular viewpoint
Ex : Universal
manufacturing model

7. NANO MATERIALS
Porous metallic ‘nanocubes’
store large amounts of H2
Nanoparticles of gold for
new catalysts
The scale of
nanopowders
www.cordis.lu/nanotechnology
Nano powders - building blocks of nano materials
(particles less than 100 nm in size)

8. Carbon nanotubes
(sensors, fuel cells, computers and
t televisions)
Nano membrane
filtration systems
(safe, clean, affordable
water)

9. Molecular electronic
‘cross bar latches’
(tiny Nano devices)
Quantum dots
a & Artificial atoms
(small devices that contain a tiny
ree ee droplets of free electrons)

10. APPLICATIONS
Medicine
Ex. Nano biotechnology
Energy
ex. Renewable
energy
Electronics and
information technologies

11. Military and
security
applications
Consumer goodsChemistry and Environment

12. NANOTECHNOLOGY 2009 2010 2015
CAGR%
2010 - 2015
Nano materials 9,027.2 9,887.9 19,621.7 14.7
Nanotools 2,613.1 5,797.2 6,812.5 3.3
Nanodevices 31.0 35.4 233.7 45.9
TOTAL 11,671.3 15,720.5 26,667.9 11.1
Global Nanotechnology Market by Type, Through to 2015 (USD $ Million)
Applications of Nanotechnology, 2015

13. Nano materials have an impact on sectors such as a Health,IT,Energy fields.
The major drivers for the nanotechnologies in energy sector for the need of security
and sustainability of energy supply, and growing consumer and government awareness of
the implications of climate change.
Nanomaterials will also contribute to the development of new drugs, therapies, and
cures for currently chronic and fatal illnesses
The application of nanotechnologies has the widespread of vast capability and
assurance for advanced diagnostics, improved public health and new therapeutic
treatments.

14. Development of useful applications for Nano scale phenomena;
Regulatory, legal, political and ethical issues;
Competition with established micro scale technologies;
License of proof-of-concept Nano tools, delivery systems and products;
Intellectual property protection, and skilling of patent and technology transfer offices;
Potential internal reluctance to embrace nanotechnologies and Nano tools within businesses;
Undertaking nanotechnology R&D in a way that pro-actively and meaningfully engages with society;
Large-scale production cost challenges;
Cost premium over existing products;
Need for multidisciplinary infrastructure and researchers;
Safety and toxicity and the effective management of the potential risks of manufactured Nano
materials;
Public and consumer concern about safety and resulting consumer activism that might inhibit
commercial investment in nanotechnology-based products.

15. Growth and demand for clean technology and alternative energy products
are likely to be stimulated by the introduction of nanotechnologies in the near
future, enhancing efficacies of technologies embraced by the industry, and
displacing older technologies and business enterprises relying on them.
Nanotechnologies are expected to have a large impact on the health care
industry
The applications of Convergence of Nano Technologies and products in the
filed of medicine, dentistry and diagnostics.

16. Nano tools refers the technologies of enabled services of
Engineering, envision of scientists, and influence of atoms.
The Nano scale is the most powerful and efficient tools of
Nanotechnology.
Commerical Nano tools
Nano manipulators
Near-field optical microscopes;
Nano machining tools ;
Advanced optical lithography tools.

17. HEALTH AND
ENVIRONMENTAL IMPACTS
Health risks
Medical application of nanoparticles
 ex: enhance drug delivery
Some nanoparticles —freely mobile
 Negative health and environmental impacts