Post on 02-Jun-2015
PRESENTERS: JAY-R APOSTOL MAHMOUD AOUN
DATE: MARCH 24, 2011
INTRODUCTION
NANOTECHNOLOGY
1. NANOTECHNOLOGY OVERVIEW1.1 HISTORY OF NANOTECHNOLOGY1.2 DEFINITION OF NANOTECHNOLOGY
2. NANOTECHNOLOGY IN ENGINEERING2.1 NANOMACHINES2.2 NANOBOTS
3. NANOTECHNOLOGY IN ELECTRONICS3.1 WAYS OF IMPROVEMENT3.2 NANOELECTRONICS: APPLICATIONS UNDER DEVELOPMENT
4. NANOTECHNLOGY IN MEDICINE4.1 DRUG DELIVERY 4.2 THERAPY TECHNICS
4.3 ANTI-MICROBIAL TECHNIQUES
5. SUMMARY AND CONCLUSION6. REFERENCES
TABLE OF CONTENTS
HISTORY OF NANOTECHNOLOGY DEFINITION OF
NANOTECHNOLOGY
NANOTECHNOLOGY OVERVIEW
HISTORY OF NANOTECHNOLOGY - Moore’s Law - Development of
nanotechnology since 1965
NANOTECHNOLOGY OVERVIEW
First what is Nano?Nano - A prefix- From Greek word náno - meaning dwarf- Extremely small- In the names of units of measure – one billionth- Nano meter scale - one billionth of a meter ( x10-9
m. )
NANOTECHNOLOGY OVERVIEW
DEFINITION OF NANOTECHNOLOGY
NANOTECHNOLOGY OVERVIEW
What is Technology?Technology – the branch of knowledge that deals with creation in the fields of :- Engineering- Industrial arts- Applied science - Pure science
Now what is Nanotechnology?- The engineering of functional systems at a molecular scale- The manipulation of the structure of matter at the molecular level- The “bottom up” approach of building materials from a nanometer scale using techniques and tools being developed today to make complete, highly advanced products. - Basically mean small technology
NANOTECHNOLOGY OVERVIEW
NANOTECHNOLOGY IN ENGINEERING
NANOMACHINES NANOBOTS
NANOTECHNOLOGY IN ENGINEERING
2. 1 NANOMACHINES
I-switch- A DNA nanomachine- Externally triggered by protons - Based on fluorescence resounance
energy transfer(FRET)- Functions as a pH(a measure of
acidity) sensor
NANOTECHNOLOGY IN ENGINEERING
I-switch mapping out spatial and temporal pH changes associated with endosome maturation.
Drosophila cells with the I-switch inside their endosomes.
NANOTECHNOLOGY IN ENGINEERING
Nanoimpellers- Nanotubes made of light-sensitive silica
- Carries cancer-killing drugs
- Targets only cancer cells
- Injected into human cancer cells in vitro
How does it work?When light strikes the silica
- Tiny tails inside the tubes wag back and forth
- Creates a current that releases the drugs out of the tube
NANOTECHNOLOGY IN ENGINEERING
A cancer cell culture from a kidney tumour is shown.
NANOTECHNOLOGY IN ENGINEERING
2.2 NANOBOTS
Mechanical Nanobots
Consists of:- Head- Two arms- Two legs
Fictional Nanobot
NANOTECHNOLOGY IN ENGINEERING
Biological Nanobot
Nanobot Made of Bacteria- Can be injected with catheter
- Can be guided with magnetic field
- It’s purpose is to deliver a toxicpayload
WAYS OF IMPROVEMENT NANOELECTRONICS APPLICATION
NANOTECHNOLOGY IN ELECTRONICS
NANOTECHNOLOGY IN ELECTRONICS
3.1 WAYS OF INPROVEMENT: - Reduce the weight and power
consumption. - Improve display screens on
electronics devices. - Increase the density of memory
chips. - Reduce the size of transistors used
in integrated circuits.
NANOTECHNOLOGY IN ELECTRONICS
3.2 NANOELECTRONICS: APPLICATIONS UNDER DEVELOPMENT
- Building transistors - Using electrodes made from
nanowires - Developing molecular-sized
transistors - Using nanosized magnetic rings - Usage of carbon nanotubes
DRUG DELIVERY THERAPY TECHNIQUES ANTI – MICROBIAL TECHNIQUES
NANOTECHNOLOGY IN MEDICINE
NANOTECHNOLOGY IN MEDICINE
4.1 DRUG DELIVERY - Employing nanoparticles to deliver
drugs. - Oral administration of drugs.
NANOTECHNOLOGY IN MEDICINE
4.2 THERAPY TECHNIQUES - Buckyballs - Nanoshells - Nanoparticles - Aluminosilicate Nanoparticles - Nanofibers
NANOTECHNOLOGY IN MEDICINE
4.3 ANTI-MICROBIAL TECHNIQUES - Nanoparticle Cream -
Nanocapsules
- Cell repairs using Nanorobots
SUMMARY AND CONCLUSION- From being a theory to something we can
now see, words turned into reality.- Nanotechnology has evolved over the period
of time for many decades, and is now showing its potential to the whole world.
- The development of nanomachines such as: I-switch, nanoimpellers, nanobots etc.
- Nanotechnology will increase your standard of living.
- Up to today nanotechnology is what's in, what's new, and what's the latest technology being developed all over the world.
REFERENCES (IMAGES)
1. Berger, M. (2009) http://www.nanowerk.com/spotlight/id10028.jpg
2. Bland, E. (2008) http://dsc.discovery.com/news/2008/04/14/gallery/cancer-cells-324x205.jpg
3. Anonimous (2010) http://4.bp.blogspot.com/_QIjZXwAi4ag/TIKuge55MGI/AAAAAAAABS8/Q73ywLx2_5w/s1600/nanobots1.jpg
4. Anonimous (2010)
http://4.bp.blogspot.com/_QIjZXwAi4ag/TIKxNvQ3hsI/AAAAAAAABTA/pHkx_zQHXsk/s1600/Two-Legged-Nanobot-Can-Walk-on-DNA-2.jpg
5. Nature Education Editorial (June 25, 2009) http://www.nature.com/scitable/blog/student-voices/nanoparticle_concerns_getting_under_your1
6. Medgadget, internet journal of emerging medical tecnology, Wednesday, March 16, 2011 http://www.medgadget.com/archives/2011/03/researchers_use_gold_nanoparticles_as_drug_carrier_in_new_cancer_treatment.html
7. Star Group Research, (01-19-10). http://www.pitt.edu/~astar/Star_research.htm
REFERENCES (TEXT)
1. Anonymous. (2011). nano. Retrieved from http://dictionary.reference.com/browse/nano
2. Anonymous. (2011). Technology.Retrieved from http://dictionary.reference.com/browse/technology
3. Treder, M. (2006,March 17). What is Nanotechnology?Retrieved from http://crnano.typepad.com/crnblog/2004/05/what_is_nanotec.html
4. Berger, M. (2009, April 9). Synthetic DNA nanomachines go to work inside living cellsRetrieved from http://www.nanowerk.com/spotlight/spotid=10028.php
5. Bland, E. (2008, April 4). Nanoimpellers Zap Cancer Cells From WithinRetrieved from http://dsc.discovery.com/news/2008/04/14/nanoimpeller-cancer.html
6. National Cancer Institute Alliance for Nanotechnology in Cancer(Nanomedicine)
Retrieved from http://www.understandingnano.com/medicine.html7. Center for Electron Transport in Molecular Nanostructures at
Columbia University (Nanoelectronics)
http://www.understandingnano.com/nanotechnology-electronics.html8. History of Nanotechnology
http://en.wikipedia.org/wiki/History_of_nanotechnology
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