3. History of nanotechnology
The history of nanotechnology deals
with the development and advances
over time of concepts and experimental
work that fall into the broad category of
nanotechnology
The American physicist Richard Feynman in 1959
described a process by which we could develop the
ability to manipulate individual atoms and
molecules, using precision tools to build and operate
another set of tools of smaller proportions, and so on
until reaching the nanoscale.
4. First time talking about
nanotechnology
- 1959: American physicist Richard Feynman spoke about the
possibility of creating structures with specific properties built
atom by atom molecule by molecule.
- 1974: Japanese scientist Norio Taniguchi of the tokyo
university of science introduced the concept of
nanotechnology.
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5. Definition
Nanotechnology is a set of disciplines focused
on the study , manipulation and control of
atoms and molecules to create systems with
unique properties that can be applied in a
variety of areas.
6. Nanomaterial:
1. The size for a nanomaterial: at least one of
its dimensions must be between 1 and 100
nanometers according to the National
nanotechnology initiative, since it has been
established that it is up to approximately 100
nanometers that you can observe
phenomenos that are not present in larger
structures.
1m
1nm
7. 3. The composition and shape of the
nanomaterials: they can be inorganic, organic,
derived from carbon or a combination of them,
and can take different shapes like worms, wires,
spheres and so on.
2. The arrangement and spatial
organization of atoms and
molecules: They combine to form
a stable structure .
8. The size + The spatial arrangement Shape and
composition = unique property.
The material we obtain as a result a
unique property.
magnetic, electronic, optical,
thermal or mechanical.
Once you have seen a
nanomaterial it is possible to build
systems with specific
characteristics that can be applied
in everyday life.
9. Through it you
can control
atoms and
molecules
It uses both
biological and
material
procedures
It gives materials
new optical,
electronic and
magnetic
behaviors.
Characteristics of Nanotechnology
It works at the
nanometric
scale (from 1 to
100 nm)
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10. Nanotechnology Applications
- Electronics: Carbon nanotubes→ Microchips Industry
- Energy: Nanocomponent integrated to solar panels to
double the amount of sunlight converted into electric
current
- Medicine: Treatment of diseases using
nanotechnology → ex: To kill cancerous cells in a
selective way
- Environment care: Nanofiltration systems for heavy
metals
- Textile: Nanotechnology enables the development of
smart fabrics → that prevents stain or wrinkle
11.
12. Nanotechnology Classification
Top - Down
Miniaturized
from 1 to 100
Nanometers
Bottom - up
Nanometric
scale but its
size increases
Dry
It does not
work with
humidity
Wet / Humid
Based in
biological
systems
Way of proceeding Medium in which they are used
Carbon, Silicium Cellular component
13.
14. Regarding scientific articles relating to
nanotechnology, China tops the list with more
than 85,700 nano articles. Abundant workforce, the
existence of numerous academic and research
centers and, of course, special attention to
nanotechnology have contributed to China’s
leadership in publishing nano-articles in the last
decade, with around 14% of all the Chinese
scientific articles falling into this category.
Following China, the United States is in second
place, having published about 23,200 articles
(11.5%), while India and Iran would be in the next
places with 9.4% and 5.5%, respectively.
Source: Statnano, Nbci+
https://statnano.com/news/70227/Top-20-Countrie
s-in-Publishing-Nano-Articles-in-2021
Nanotechnology
Worldwide Nowadays
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15. Nanotechnology in Colombia
● Nanotechnology was defined as a
strategic science for national
development by the Government in
2004.
● Since 2010, efforts have been made to
train doctors and researchers in this
area, and Colombian universities began
to introduce this science into their
academic programs.
● Many private companies in Colombia
began to implement nanotechnology in
their products as well.
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16. Faculty of Science of the
Javeriana University
Develops drugs that travel through
the body to attack diseases in an
efficient and localized manner.
University of Pamplona
Researchers work on the
design of biosensors that
detect viruses in water.
Tecnoparque, Medellín
Research to create a dressing
that helps to quickly heal burns.
Jorge Reynolds, Electrical
and Bio-engineer
Invented a pacemaker with
the size of a rice
Rosa Helena Bustos -
University of La Sabana
Worked on the application of
nanobiosensors to improve the
health of patients with
antimicrobial therapies.
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19. References
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● La nanotecnología Una Solución para la salud. Universidad de La Sabana. (n.d.).
Retrieved May 9, 2022, from
https://www.unisabana.edu.co/portaldenoticias/al-dia/la-nanotecnologia-una-soluc
ion-para-a-salud/
● Semana. (2020, August 29). Colombia se apunta a la revolución nanotecnológica.
Semana.com Últimas Noticias de Colombia y el Mundo. Retrieved May 9, 2022, from
https://www.semana.com/tecnologia/articulo/colombia-se-apunta-a-la-revolucion-
nanotecnologica/469643/
●
