The document discusses potential risks from nanoparticles and the need for precaution regarding nanotechnology. It notes that while nanotechnology shows promise, nanoparticles are very small and their health and environmental effects are not fully understood. There are knowledge gaps around nanoparticle toxicity, detection, and how to regulate such minute substances under current laws. The document calls for developing nanotechnology responsibly, understanding implications, and preparing solutions, given that the field is advancing rapidly but approaches to issues are just beginning. It stresses the importance of implementing measures globally to address challenges like pollution, lack of privacy, and potential misuse of nano-enabled weapons.

1. A Critic On Nano pollution & The
Need For Precaution
Technology MATTERS - For Both Good and ill………
AJAL.A.J , ASSISTANT PROFESSOR , FISAT – KOCHI
AJI.A.J , LECTURER , JYOTHI ENGINERING COLLEGE, CHERUTHURUTHY

2. Nanotechnology
Birth of Nanotechnology
• Professor Taniguchi of Tokyo Science University used the word
“nanotechnology” to describe the science and technology
of processing or building parts with nanometric tolerances.
•A nanometer is a unit of length in the metric system, equal to one
2
billionth of a meter.

3. 3

4. Nanocomposite body parts
Materials Nanopollution
Environment
Electronics
DNA nanochips
• Super-hi-speed transistor Life sciences
• Hi-capacity memory chip
• Biosensors
• ‘Genomic’ drugs
• Nano-delivery systems
Nanotechnology: • Nanorobots
future core technology for Nanoparticle toxicity
next generation of industries
4
© DAR2007

5. Event : Transformer Fire at Power Plant
5

6. The Cell
Nucleus
Lysosome
Mitochondrion

7. Mitochondrion
500nm x
2 to 5000 nm

8. Cell Microtubules

9. Cell division

10. Some of the disadvantages of
are;
• . In relation to health problems, it is so
minute that its existence in the hand is
much unnoticed.
However, the nature and extent of
Global monetary crisis, loss risk to consumer health from
of jobs, oil becomes ingestion of nanoparticles via food
worthless, diamonds become and drink are largely unknown.
worthless, atomic weapons
more destructive and
accessible
•The risk of inhaling this could
be very dangerous, due to
which it can be a cause of
death.
Smart Dust 10

11. idee voor nanotechnologie
"The Next Big Thing Is Really Small” 11

12. About risks still a lot is unknown 12

13. Introduction nanotechnology
• Possible dangers:
– Environment
– water =>fish
– soil =>bacteria
– air =>animals, humans
– Lungs
– PM .01?
– New asbestos?
– Intestines
– inflammation?
– Skin 13

14. Introduction nanotechnology
• Problems:
– Mass: NP are very tiny, => traditional dose-
response does no longer apply.
– Toxicology: effects of NP may differ. A
knowledge gap exists.
– Detection : due to the size of NP and lack of
knowledge detection is difficult.
– Law: current legislation is in place on all
chemicals, but how does one control an
undetectable substance?
14

15. bio hazards, nano hazards and radiation hazards.
3 Hazard Symbol Mini Buttons - Punk Goth Emo
Nano No - No ??
15

16. 16

17. 17

18. Nano powder
18

19. Ethics, Precaution, & Democratic
Decision-Making in Nanotechnology

20. Dimensions of “nano-ethics”
• Ethical implications of NT are as broad as the field itself
• Berne (2006) uses a three-dimensional framework for thinking about ethics related to NT
First Dimension Moral assertions Academic integrity, research
commonly held within ethics, consideration of
and outside of occupational and public health
research communities, issues
primum non nocere.
Second Negotiable moral Who will control emerging
claims, subject to technologies, and for what
Dimension change based on purpose? What will happen to
perception. personal privacy? Should
technological developments ever
be “rushed?”
Third Dimension Meta-ethical What is the moral good of
understandings of the progress? What will these
purpose of human changes mean for emotional,
living, beliefs about spiritual, psychological well-
existence: meaning, being of the human-family?
selfhood, purpose.
20

21. 21

22. 22

23. Effects of air pollution
• For every increase of 10μg/m3 in PM2.5
↑mortality by 6%
– Cardiovascular disease
– Chronic lung disease

24. Mesothelioma
Copyright © 2007, TWI Ltd 24 World Centre for Materials Joining Technology

25. Nano Pollution
Ultimate test for
the “Throw-away
Society”?

26. Surveillance

27. Lack of Privacy

28. Nano Weapons
 Easy to build
 Hard to monitor
 Easy to deliver
 Obsolete almost
immediately
 Programmable and
controllable

29. WMD Proliferation

30. Terrorism

31. Arms Race

32. An inconvenient truth
“An inconvenient truth
has become
an unfortunate reality”
32
© DAR2007 - UN Sec-General (2007)

33. We need solutions…
And we need them now.
33

34. 34
© DAR2007 http://community.livejournal.com/vintagephoto

35. War

36. Challenges of Nanotech
I. Develop Technology
— Happening
II. Understand Implications
— Well begun
III. Prepare Solutions
— Barely started
IV. Implement Globally
— yet to decide
36

37. What do YOU think?????
37

38. How will we improve our
health and wellbeing
in the future?
38

39. Nanofilm in eyewear.
Glass coating is 39
Eye cream with
hydrophillic. buckyballs.

40. 40

41. 41
Energy from the Sun is Abundant

42. Nanotechnology Overview -
Reading
Apopka oasis reading
café
• Michael Crichton’s
“prey”
• John Robert Marlow’s
“Nano”
42

43. Let’s Pause for
Questions from the
Audience
43

44. 1. C.H. Peng, C.C. Hwang, C.K. Hong and S.Y. Chen, Materials Science and
Engineering, B107, (2004), 295-300.
2. Z. Yue, L. Li, J. Zhou, H. Zhang and Z. Gui, Materials Science and
Engineering, B64, (1999), 68-72.
3. Y. Li, G. Li and Q. Yin, Materials Science and Engineering, B130, (2006),
264-268.
4. M.R. Vaezi and S.K. Sadrnezhaad, Materials & Design, 28[2], (2007),
515-519.
5. S.-Y. Chu, T.-M. Yan and S.-L. Chen, Ceramics International, 26, (2000),
733-737.
6. G. Westin, A. Ekstrand, M. Nygren, R. Q. sterlund and P. Merkelbach, J.
Mater. Chem., 4, (1994), 615-621.
7. S.C. Pillai, J.M. Kelly and E. Declan. McCormack and Raghavendra
Ramesh, J. Mater. Chem., 14, (2004), 1572-1578.
8. V.C. de Sousa, M.R. Morelli and Ruth H.G. Kiminami, Ceramic
International, 26, (2000), 561-564.
9. C.-C. Hwang and T.-Y. Wu, Materials Science and Engineering, B111, (2004), 197-20
44
44

45. Open to Discussion
45

46. 46

47. 47