Learn how researchers use atoms and molecules to build future technology
Why are things so small, so significant? A new video series created by the National Science Foundation (NSF) and NBC Learn, the educational arm of NBCUniversal News, sheds light on this question.
Quantum dots (QD) are nanoscale crystals that can emit light at different wavelengths creating brilliant colors. Scientists can control the size of a QD in order to determine which color it emits. This array moves from blue emitting QD with radii of 2-3 nm up to red QD with radii of 5-6 nm. Learn more by watching episode 4 of Nanotechnology: Super Small Science.
Credit: NSF & NBC Learn
"Nanotechnology: Super Small Science" is a six-part series and shows viewers how atoms and molecules that are thousands of times smaller than the width of a human hair can be used as building blocks to create future technology. The series features a dozen world class American researchers, including quantum physicist and National Medal of Science winner Paul Alivisatos.
"Today we are learning to rearrange the basic atomic and molecular building blocks -- foundational technology for understanding nature and creating things that were not possible before," said Mihail Roco, senior adviser of science and engineering at NSF and a key architect of the National Nanotechnology Initiative (NNI). "These videos, produced while nanoscience is still in formation with so much potential, tell stories that will inspire younger generations and future results."
Narrated by NBC News and MSNBC anchor Kate Snow, "Nanotechnology: Super Small Science" will be available through NBC affiliate stations and can also be seen for free online at NBCLearn.com, NSF.gov and Science360.gov.
"We're proud to launch an original series that shows viewers how scientists and engineers manipulate material only billionths of a meter in size, and the powerful impact that can have on the world around them," said Soraya Gage, vice president and general manager of NBC Learn. "Through our partnership with the National Science Foundation, we're using our digital platform and journalistic expertise to explore how nanotechnology advances innovation in fields such as medicine, energy and electronics."
"For 15 years, more discoveries have come from Nanotechnology than any other field of science and engineering. Now its discoveries are penetrating all aspects of society -- new industries, medicine, agriculture and the management of natural resources," added Roco.
In the videos, viewers learn how scientists use nanotechnology to capture energy from the sun, increase the power of smaller microchips and computers, build structures that are lightweight and resilient and much more:
Nanotechnology: Harnessing the Nanoscale - Why is something only billionths of a meter in size so important? Dawn Bonnell at the University of Pennsylvania shows how the ability to control and manipulate material at this extremely small scale is having a big impact around the world in medicine, energy and electronics.
Nanotechnology: A Powerful Solution - Paul Alivisatos' team at the University of California, Berkeley, is working to develop a new type of solar cell using nano-sized crystals called quantum dots. Quantum dots are already helping to produce brighter, more vivid color in displays. The ability of solar cells to efficiently process energy in the form of light also makes them an ideal solution to our energy problems.
Nanotechnology: Nanoelectronics - You may have nanotechnology in your pocket and not even know it. Today's smartphones are much smaller than computers of the past and yet significantly more powerful, thanks to nanotechnology. Tom Theis with the Semiconductor Research Corporation and IBM, and Ana Claudia Arias at the University of California, Berkeley, explain how nanotechnology has already changed our lives and the exciting possibilities for the future.
Nanotechnology at the Surface - How could something only billionths of a meter thick defend against water, dirt, wear and even bacteria? Working at the nanoscale, scientists and engineers, like Jay Guo of the University of Michigan, are creating protective nanoscale coatings and layers. These surfaces have applications in energy, electronics, medicine and could even be used to make a plane invisible.
Nanotechnology: Nanoarchitech - Caltech's Julia Greer is proving that using big and heavy materials is not the only way to build strong, robust structures. Beginning at the nanoscale, her group is constructing materials that are more than 99 percent air yet strong and resilient. These new materials are breaking the rules by behaving in very unexpected ways.
Nanotechnology: Nano-Enabled Sensors and Nanoparticles - Some of the biggest advances in medical technology may soon come from devices built on the nanoscale. Donglei Fan with the University of Texas at Austin and Paula Hammond with Massachusetts Institute of Technology discuss how their use of nanotechnology may one day sense, diagnose and even treat cancer.
"We want to spread the excitement of the nano world -- especially to the younger generation -- for they will start to realize its extraordinary potential," said Roco.
Lisa-Joy Zgorski | EurekAlert!
Nanoparticle Exposure Can Awaken Dormant Viruses in the Lungs
16.01.2017 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
Cholera bacteria infect more effectively with a simple twist of shape
13.01.2017 | Princeton University
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...
UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration
"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...
Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.
Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
16.01.2017 | Power and Electrical Engineering
16.01.2017 | Information Technology
16.01.2017 | Power and Electrical Engineering