Archive for the ‘materials’ category: Page 210

Aug 10, 2016

Photon Upconversion at Crystalline Organic–Organic Heterojunctions

Posted by in category: materials

How to turn green light blue.

Previous article in Early View: High-Performance Photovoltaic Polymers Employing Symmetry-Breaking Building Blocks.

Read more

Aug 6, 2016

New Form Of Light Could Make Study Of Quantum Phenomena Easier

Posted by in categories: materials, quantum physics

In a development that could greatly help the study of quantum phenomena, scientists have created a theoretical model for a new form of light that combines the properties of photons and electrons. If turned into reality, the new light form could also be used to make electrical circuits which at present use electrons for conduction.

Scientists from Imperial College London published a study in the journal Nature Communications on Friday that shows “it is possible to create a new form of light by binding light to a single electron, combining the properties of both,” according to a statement issued by the college.

Light, which is made up of photons, usually interacts with a large number of electrons on the surface of whatever material it comes in contact with. For the study, researchers from Imperial used “a recently discovered class of materials known as topological inhibitors.” Combining that with “theoretical physics to model the behavior of light,” they found that light could interact with only one electron on the surface.

Continue reading “New Form Of Light Could Make Study Of Quantum Phenomena Easier” »

Aug 4, 2016

Here’s Why North Korea Wants to Go to the Moon

Posted by in categories: materials, space travel

Sure its only to place a flag on the moon. I am sure that the opportunity around rare materials mining, etc. is also enticing to N Korea.

Totally for peaceful purposes, the country says.

Read more

Jul 29, 2016

Changing Properties of Zeolites to Develop a Portable Device for Hemodialysis

Posted by in category: materials

A new material for a portable device for hemodialysis could soon be created by scientists of Tomsk State University. The team is working on changing physicochemical properties of zeolites using thermal and mechanical treatment.

 Changing Properties of Zeolites to Develop a Portable Device for Hemodialysis

Changing properties of zeolites to develop a portable device for hemodialysis.

Continue reading “Changing Properties of Zeolites to Develop a Portable Device for Hemodialysis” »

Jul 28, 2016

A new Type of Quantum Bit

Posted by in categories: materials, quantum physics

In approaches using conventional semiconductor materials, scientists typically created qubits in the form of individual electrons. However, this caused dephesing, and the information carriers were difficult to program and read. Now, researchers from the University of Basel, Ruhr University Bochum, and the Universite de Lyon have overcome this problem by using holes — instead of electrons — to create qubits.

A new type of quantum bit | university of basel.

A new Type of Quantum Bit | University of Basel

Continue reading “A new Type of Quantum Bit” »

Jul 25, 2016

Astronomers Find Black Holes Do Not Absorb Dark Matter

Posted by in categories: cosmology, materials

There’s the common notion that black holes suck in everything in the nearby vicinity by exerting a strong gravitational influence on the matter, energy, and space surrounding them. But astronomers have found that the dark matter around black holes might be a different story. Somehow dark matter resists ‘assimilation’ into a black hole.

About 23% of the Universe is made up of mysterious dark matter, invisible material only detected through its gravitational influence on its surroundings. In the early Universe clumps of dark matter are thought to have attracted gas, which then coalesced into stars that eventually assembled the galaxies we see today. In their efforts to understand galaxy formation and evolution, astronomers have spent a good deal of time attempting to simulate the build up of dark matter in these objects.

Read more

Jul 21, 2016

Facebook details a way to offer laser-based internet access

Posted by in categories: internet, materials

Have you wondered how Facebook might offer high-speed internet access using lasers? The company’s Connectivity Lab is happy to show you. It just published a research paper explaining laser beam technology can deliver up to 2Gbps to remote places. The trick, it says, is to use fluorescent optical fibers to collect the light instead of relying on traditional optics. Since the fibers don’t emit the same color that they’re absorbing, you can shine a brighter light at them (similar to a solar concentrator) and manage an extremely quick turnaround time of under 2 nanoseconds. Combine that with multi-stream data encoding and you get the ample bandwidth that’s normally reserved for WiFi and wired networks.

Facebook says it’s “investigating the feasibility” of shipping laser internet hardware based on this technology, but that may be more realistic than you think. The social network managed this feat using readily available materials that weren’t even meant for the purpose. It’s hoping that other organizations will craft optimized materials that are better-suited, and notes that an infrared-based system might hit speeds of up to 10Gbps. As important as Facebook’s findings might be, they’re only just the beginning.

Read more

Jul 20, 2016

Payload designed to show that useful, high value goods can economically be produced in low earth orbit, opening the space frontier for Earth-focused manufacturing

Posted by in categories: materials, space travel

MOFFETT FIELD, CA. Made In Space, Inc. (Made In Space) and Thorlabs, Inc. (Thorlabs) will send a microgravity-optimized, miniature fiber drawing system to the International Space Station (ISS) to manufacture high-value-to-mass ZBLAN optical fiber via a cooperative agreement with The Center for Advancement of Science In Space (CASIS). The payload, called the “Made In Space Optical Fiber Production in Microgravity Experiment” (Fiber Payload) is currently scheduled to be launched to the ISS in the first quarter of 2017. The Fiber Payload will produce test quantities of ZBLAN optical fiber in the persistent microgravity environment ISS provides, and be returned to the Earth shortly thereafter. Once returned to the Earth, the fiber will be tested and utilized. Based on the results from this initial experiment and market demand, Made In Space plans to develop and operate larger scale microgravity production facilities for ZBLAN and other microgravity enabled materials.

Read more

Jul 20, 2016

Thermal Separation of Complex Polymers

Posted by in categories: materials, particle physics

The Postnova TF2000 is an advanced thermal field flow fractionation (TF3) system that provides a highly efficient method of separating and characterising complex polymer samples such as natural or synthetic rubbers, starches and paints from approximately 10 kDa up to 100 MDa and more in organic and aqueous solvents.

The TF2000 uses a temperature gradient as the driving force for its separation of polymers and particles. Molecules affected by the thermal gradient undergo diffusion which enables separation by both their molar mass and chemical composition. This unique feature allows the separation of different materials having the same molar mass. The separation can be further optimized by the use of different eluents and various temperature programs.

Read more

Jul 20, 2016

Superhydrophobic coating repels blood cell damage

Posted by in categories: biotech/medical, materials

This is amazing. I can see so much usage for this technique in the future in battling blood cancers, hemophilia, and other treatments beyond heart surgery and kidney dialysis.

Coating dialysis tubes with a water-repellent material leaves red blood cells unscathed.

Read more