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Tanvir !

on 10 September 2014

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Transcript of Nanotechnology

Current applications of Nanotechnology


-is rapidly expanding
-has a huge potential
-promises to revolutionize:
drug transportation in the body
gene therapy
many areas of research, development and clinical application
the way we detect and treat damage and disease to the human body
-will bring scientific dreams closer to reality
Nanotechnology is already being used in its passive form, such as sunscreens, cosmetics etc.

Currently it focuses heavily on the realm of medicine.

in applications of nanotech in medicine we use a special type of particle called a "

"nanoparticles" are defined as "very small objects" that behave as a whole unit.

only objects that are 1-100 nm in diameter can be classified as nanoparticles.

Future Goals
-creating nanobots that target cell organelles

-tailoring treatments according to the genetic make-up of the patient
being able to examine or operate on a section of a person’s DNA
building nanobots that can “walk” and carry out repairs inside cell parts like in the nucleus or mitochondria

-early than usual diagnostic of cancer
Field of Drugs and Medicine
applications of nanotech in medicine such as drug delivery is called
nanomedicine can effectively reach destinations in the human body that normal medicine can't reach.
at present day, much research is being done to make
which would be small at molecular level and will fix injuries and other problems at cellular level.
"nanobots" or automatic-drugs are called "smart drugs" which will identify problems and fix them by their own.

Researchers at MIT are using nanoparticles to deliver vaccines.
These nanoparticles will protect the vaccine, allowing the vaccine time to trigger a stronger immune response.
they have made a nanoparticle that can be taken by mouth and pass through the lining of the intestines into the bloodstream. (although it's still in developement)
Nanotubes in Drug Delivery
another way of drug delivery into the human system is using
(In detail "
unfortunately this too is still in development
these nanotubes are built with special structures of carbon
carbon molecules in special structures can be very durable (such as diamond)
nanotubes will successfully guide
such as drugs, proteins, and others such as DNA
this will allow drugs to accurately enter specific parts of the body
Programmable and controllable microscale robots comprised of nanoscale parts fabricated to nanometer precision that will allow medical doctors to execute curative and reconstructive procedures in the human body at the cellular and molecular levels.
Ned Seeman, a researcher at New York University believes it will one day be possible to create a molecule-scale line, almost like “spot-welding”, or a car assembly line, where you move a molecule along until the right location is reached. Then, a nanobot does a bit of chemistry on it and Ta da! The cell or cell part will be fixed :)
Current applications of Nanotechnology


nanotech can detect malignant cancer cells in a human body and its origin.

meaning it is more accurate at detecting cancer then by
cancer imaging
or by symptoms and physical exams.

several nano-devices are being developed currently to diagnose cancer and for detection

nanotechnology such as
are being developed for early detection of cancer cells (nanobots that’ll travel through specific locations to detect cancer cells such as cervical areas), and treating malignant cancer cells (eliminating cancer development by destroying detected cancer cells).

the EU-funded
('Nanotechnological Toolkits for Multi-Modal Disease Diagnostics and Treatment Monitoring') research team is developing a nanotechnology-based toolkit that can be used for early detection of cancer.

The toolkit will have capabilities that will involve the detection and imaging of the biomarkers for the most common forms of cancer. The LOC will have a set of nanoparticle reagents
currently, it is more experimental than applicable
how to scale up production of materials
how to bring down costs and timescales
how to secure public confidence that this rapidly expanding technology is safe
its size-small enough to penetrate cell membranes and can have access to the brain and other parts of the body including inside the nuclei of cells
its toxicity
its solubility and persistence-if they can’t be broken down and digested or degraded, is there danger of them accumulating and damaging organs

Quantum Dots:

that are 2-8 nm in diameter
have luminescent properties
can find cancer signature


these can be injected into human bodies to detect cancer
they can find their ways into cancer cells
if such cells are found, their locations can be pinpointed by medical imaging technology

How much is too much?
How many nanotechnology implementations in the human body - to protect against diseases and “enhance immunization” - would it take for a human to no longer remain human?
What is Nanotechnology

consisted of tiny holes
holes are so small that only DNA strands can passed through
scientists can access DNA strands through the pores
allowing them to decipher the faults in DNA that lead to cancer
-more research is needed before these products are allowed onto the market
-knowledge of the new technology and communication about its safety both need to keep pace in order for it to benefit and secure public confidence

“Human health has always been determined on the nanometer scale; this is where the structure and properties of the machines of life work in every one of the cells in every living thing. The practical impact of nanoscience on human health will be huge”

Richard E. Smalley
1996 Nobel Laureate in Chemistry
in the field of Nanotechnology
", where using nanotechnology they can imitate some of the biological processes in nature, such as the behavior of DNA, to engineer new methods and perhaps even improve them.

Medical fields and pharmaceuticals
And many more areas

Computers in medicine
"Nanotechnology in Medicine - Nanomedicine." Nanotechnology in Medicine. N.p., n.d. Web. 12 Dec. 2013.
"Nanotechnology Project." PEN News. N.p., n.d. Web. 12 Dec. 2013.
"Researchers Developing New Nanotechnology for Medical Use." Researchers Developing New Nanotechnology for Medical Use. N.p., n.d. Web. 12 Dec. 2013.
"Nanotechnology in Medical Therapy." Nanotechnology Therapy Techniques. N.p., n.d. Web. 12 Dec. 2013.
"Nano Technology in Cancer Therapy." AuthorSTREAM. N.p., n.d. Web. 12 Dec. 2013.


The manipulation of atoms and molecules which creates matter with astonishing new properties
“Nano” - Greek word for “dwarf” & in science it means 1 billionth

Professor Norio Taniguchi
from Tokyo Science University
derived the term "nanotechnology" in 1954
nanotechnology is the "processing of separation, consolidation and deformation of materials by one atom or molecule"
The History of Nanotechnology
Nanotechnology in the Present
Romans - the pioneers of nanotechnology
The Lycurgus Cup - first known use of nanotechnology (1600 years ago by the Romans)
the cup depicts the scene of King Lycurgus of Thrace being trapped by grape vines
Roman artisans had ground down silver and gold until they were mere particles and infused the cup with it
Richard Feynman
1954 lecture "There's Plenty of Room at the Bottom" talked of the possibility of technology and engineering at the atomic scale
Textboook of Nanoscience and Nanotechnology pg 26
The End.
Thank you For Listening to Our Presentation
Full transcript