Nanotechnology in the future - documentary
Δημοσιεύτηκε στις 4 Αυγ 2015
Nanotechnology in the future - documentary
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""20"" Things You Didn't Know About... Nanotechnology
1
Get small. A nanometer is about the width of a strand of DNA; if you
design, build, or use functional systems smaller than 100 of these,
you’re a nanotechnologist.
2 By that definition, we have been
doing nanotech for centuries. For instance, the colors in medieval
stained glass windows result from nanocrystals created in the heating
and cooling of the glass.
3 Size matters. At the nano scale,
materials take on unusual properties. Their color, transparency, and
melting point often differ significantly from those of larger clumps of
the same stuff.
4 Nanoscale bits of metal oxide, carbon fiber,
or metal blends can detoxify hazardous waste: Their extreme solubility
and chemical reactivity help them zero in on the nasty stuff.
5
This approach is already being used at sites in a dozen states, mostly
to clean groundwater fouled by solvents, metals, and petroleum.
6
Brighter colors! Richer flavors! Less spoilage! Those are some of the
reasons why companies are dumping nanoparticles into hundreds of
products, including cosmetics, sunscreens, and food.
7 Analysts say the global market for manufactured goods using nanomaterials could hit $1.6 trillion by 2013.
8
Uh-oh. Studies show that nanoparticles can work their way into the
bloodstream, penetrate cells, and get past the blood-brain barrier.
Research has linked such particles to lung damage; the brain may be
affected too.
9 But if those particles don’t kill us, they just
might save us. Scientists at U.C. San Diego have designed a fluorescent
nanoparticle that glows inside the body, making it easier to image
tumors and organ damage.
10 Yale researchers have created
plastic nanospheres that encapsulate proteins called cytokines, which
stimulate the immune system’s killer T-cells. An injection of those
spheres could help fight disease and infection.
11 And in a University of Southern California lab, nanotubes have been used to create synthetic neurons (pdf).
12
The USC team is trying to assemble these neurons into functional
networks, which would bring us closer to assistive brain implants.
13
In 1989, using an atomic force microscope, IBM engineer Don Eigler
became the first person to move and control a single atom.
14 Eigler and his team later used 35 xenon atoms to spell out “IBM,” thus performing the world’s smallest PR stunt.
15
Atoms? Big whoop. Researchers at Princeton and U.C. Santa Barbara can
control the spin of a single electron, trapping it in a “corral” created
by applying voltage to minuscule electrodes.
16 But they’re not
playing cowboy. The breakthrough could lead to powerful quantum
computers that store and manipulate data in the spin of individual
electrons.
17 Not to be outdone, Stanford scientists used
scanning tunneling microscopy and holograms to write information within
the interference patterns formed by electron waves on a copper sheet.
The letters are less than a third the size of Eigler’s “IBM.”
18
Government researchers have created arrays of chromium nanodots that
can store magnetic data with unprecedented uniformity. One goal: drawing
more complex integrated circuits on silicon chips.
19 For the
rodent who has everything. Georgia Tech scientists made piezoelectric
generators out of nanowires and attached them to tiny hamster jackets.
When the critters ran, the generators created electricity.
20
Zhong Lin Wang, co-inventor of the jacket, envisions a shirt that
charges your cell phone as you stroll, or an implanted device for
measuring blood pressure that’s powered by your own heartbeat.
Read and watch out more on these sources:
Source: http://goo.gl/KEZ2iT
Source: https://youtu.be/WZp6K-hDyAU
Find out more about documentary and documentaries
also
documentaries 2015 on our channel that share videos from bbc
documentary, national geographic,pds documentary, You can also read:
Keyword,Documentary,documentaries,nation
Nanotechnology in the future
Don’t
forget to subscribe our channel for more awesome videos, Try to follow
us on social media, we’re here 7/24 , happy to serve you:
Facebook: https://goo.gl/gTez1P
Twitter: https://goo.gl/TZmnRC
Google+: https://goo.gl/Qdl9b8
""20"" Things You Didn't Know About... Nanotechnology
1
Get small. A nanometer is about the width of a strand of DNA; if you
design, build, or use functional systems smaller than 100 of these,
you’re a nanotechnologist.
2 By that definition, we have been
doing nanotech for centuries. For instance, the colors in medieval
stained glass windows result from nanocrystals created in the heating
and cooling of the glass.
3 Size matters. At the nano scale,
materials take on unusual properties. Their color, transparency, and
melting point often differ significantly from those of larger clumps of
the same stuff.
4 Nanoscale bits of metal oxide, carbon fiber,
or metal blends can detoxify hazardous waste: Their extreme solubility
and chemical reactivity help them zero in on the nasty stuff.
5
This approach is already being used at sites in a dozen states, mostly
to clean groundwater fouled by solvents, metals, and petroleum.
6
Brighter colors! Richer flavors! Less spoilage! Those are some of the
reasons why companies are dumping nanoparticles into hundreds of
products, including cosmetics, sunscreens, and food.
7 Analysts say the global market for manufactured goods using nanomaterials could hit $1.6 trillion by 2013.
8
Uh-oh. Studies show that nanoparticles can work their way into the
bloodstream, penetrate cells, and get past the blood-brain barrier.
Research has linked such particles to lung damage; the brain may be
affected too.
9 But if those particles don’t kill us, they just
might save us. Scientists at U.C. San Diego have designed a fluorescent
nanoparticle that glows inside the body, making it easier to image
tumors and organ damage.
10 Yale researchers have created
plastic nanospheres that encapsulate proteins called cytokines, which
stimulate the immune system’s killer T-cells. An injection of those
spheres could help fight disease and infection.
11 And in a University of Southern California lab, nanotubes have been used to create synthetic neurons (pdf).
12
The USC team is trying to assemble these neurons into functional
networks, which would bring us closer to assistive brain implants.
13
In 1989, using an atomic force microscope, IBM engineer Don Eigler
became the first person to move and control a single atom.
14 Eigler and his team later used 35 xenon atoms to spell out “IBM,” thus performing the world’s smallest PR stunt.
15
Atoms? Big whoop. Researchers at Princeton and U.C. Santa Barbara can
control the spin of a single electron, trapping it in a “corral” created
by applying voltage to minuscule electrodes.
16 But they’re not
playing cowboy. The breakthrough could lead to powerful quantum
computers that store and manipulate data in the spin of individual
electrons.
17 Not to be outdone, Stanford scientists used
scanning tunneling microscopy and holograms to write information within
the interference patterns formed by electron waves on a copper sheet.
The letters are less than a third the size of Eigler’s “IBM.”
18
Government researchers have created arrays of chromium nanodots that
can store magnetic data with unprecedented uniformity. One goal: drawing
more complex integrated circuits on silicon chips.
19 For the
rodent who has everything. Georgia Tech scientists made piezoelectric
generators out of nanowires and attached them to tiny hamster jackets.
When the critters ran, the generators created electricity.
20
Zhong Lin Wang, co-inventor of the jacket, envisions a shirt that
charges your cell phone as you stroll, or an implanted device for
measuring blood pressure that’s powered by your own heartbeat.
Read and watch out more on these sources:
Source: http://goo.gl/KEZ2iT
Source: https://youtu.be/WZp6K-hDyAU
Find out more about documentary and documentaries
also
documentaries 2015 on our channel that share videos from bbc
documentary, national geographic,pds documentary, You can also read:
Keyword,Documentary,documentaries,nation
Nanotechnology in the future
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