Menu

Blog

Page 10702

Jan 17, 2017

Enhancing fuel cell performance with graphene

Posted by in categories: energy, engineering, sustainability

  • Exploiting the usage of 2 D crystals in methanol fuel cells

ChemEurpoe — Scientists from the School of Chemical Engineering and Analytical Science, in the University of Manchester have come up with a way to utilize 2D materials in an actual operating direct methanol fuel cell. They have shown that the addition of single layer graphene by Chemical vapour deposition, on to the membrane area has significantly reduced the methanol cross over at the same time obtaining negligible resistance to protons thereby enhancing the cell performance by 50%.

Fuel cells count as interesting energy technology of the near future, as they pave the way for the production of sustainable energy using simple hydrocarbons as fuels. They work by a simple operational mechanism with the fuel oxidation on one side, and oxidant reduction on other side, which liberates electrons used for electrical energy generation. A wide variety of fuels, short chain alcohols have been used so far. Methanol remains a favourable candidate due to its high energy density, ease of handling and other operational characteristics.

Read more

Jan 17, 2017

Utah researchers use elephant genes to battle cancer

Posted by in category: biotech/medical

I can say that I have seen it all with this for cancer research.


SALT LAKE CITY – Researchers at Huntsman Cancer Institute have successfully used synthetic elephant genes to battle human cancer cells.

The synthetic elephant genes are still in the early phases of research, according to HCI, but show promise.

Continue reading “Utah researchers use elephant genes to battle cancer” »

Jan 17, 2017

Messy Chemistry, Evolving Rocks, and the Origin of Life

Posted by in categories: chemistry, evolution

Noted synthetic life researcher Steven Benner of Foundation for Applied Molecular Evolution is fond of pointing out that gooey tars are the end product of too many experiments in his field. His widely-held view is that the tars, made out of chemicals known to be important in the origin of life, are nonetheless a dead end to be avoided when trying to work out how life began.

But in the changing world of origins of life research, others are asking whether those messy tars might not be a breeding ground for the origin of life, rather than an obstacle to it.

One of those is chemist and astrobiologist Irena Mamajanov of the Earth-Life Science Institute (ELSI) in Tokyo. As she recently explained during an institute symposium, scientists know that tar-like substances were present on early Earth, and that she and her colleagues are now aggressively studying their potential role in the prebiotic chemical transformations that ultimately allowed life to emerge out of non-life.

Continue reading “Messy Chemistry, Evolving Rocks, and the Origin of Life” »

Jan 17, 2017

Scientists have created the coldest object in the Universe

Posted by in category: particle physics

Cool; and at −273.16°C in fact.


Nothing can be chilled below absolute zero, or −273.15°C, because at this temperature all molecular motion stops completely. Per Heisenberg’s uncertainty principle the forces of real particle velocities will always be above zero. It’s a fundamental limit that can’t seem to be broken, and that’s fine, but what bothers scientists, however, are other limits that keep them from cooling things near absolute zero.

Read more

Jan 17, 2017

Nanotechnology: Lighting up ultrathin films

Posted by in categories: nanotechnology, physics

Based on a study of the optical properties of novel ultrathin semiconductors, researchers of Ludwig-Maximilians-Universität München (LMU) in Munich have developed a method for rapid and efficient characterization of these materials.

Chemical compounds based on elements that belong to the so-called transition metals can be processed to yield atomically thin two-dimensional crystals consisting of a monolayer of the composite in question. The resulting materials are semiconductors with surprising optical properties. In cooperation with American colleagues, a team of LMU physicists led by Alexander Högele has now explored the properties of thin-film semiconductors made up of transition metal dichalcogenides (TMDs).

The researchers report their findings in the journal Nature Nanotechnology (“Opto-valleytronic imaging of atomically thin semiconductors”).

Read more

Jan 17, 2017

‘5-D protein fingerprinting’ with nanopores could give insights into Alzheimer’s, Parkinson’s

Posted by in categories: biotech/medical, engineering, neuroscience

Nice.


In research that could one day lead to advances against neurodegenerative diseases like Alzheimer’s and Parkinson’s, University of Michigan engineering researchers have demonstrated a technique for precisely measuring the properties of individual protein molecules floating in a liquid.

Proteins are essential to the function of every cell. Measuring their properties in blood and other body fluids could unlock valuable information, as the molecules are a vital building block in the body. The body manufactures them in a variety of complex shapes that can transmit messages between cells, carry oxygen and perform other important functions.

Continue reading “‘5-D protein fingerprinting’ with nanopores could give insights into Alzheimer’s, Parkinson’s” »

Jan 17, 2017

Energy Dept. Seeks A Few Good (Really, Really Good) Seaweed Farmers

Posted by in categories: energy, food, sustainability

Attention all seaweed farmers! US DoE and DARPA wants you.


Did you know that the amount of commercially produced seaweed almost hit the mark of 25 million metric tons last year? China and Indonesia dominate the global seaweed-to-food market, and now the Department of Energy has been casting a hungry eye on the potential for the US to get in on the action, with a particular focus on converting seaweed to biofuel and other high value products.

Of course, there is a problem. Growing seaweed — aka macroalgae — for food is one thing. The algae-to-energy cycle is quite another thing entirely. That’s why the Energy Department has called upon its cutting edge funding division, ARPA-E, to put out a call for the super macroalgae farmer of the future.

Continue reading “Energy Dept. Seeks A Few Good (Really, Really Good) Seaweed Farmers” »

Jan 17, 2017

Possibilities for smart bullets in machine guns

Posted by in category: military

More smart bullet news; and this is not a fake news flash.


THE MIL & AERO COMMENTARY, 17 Jan. 2017. Military machine guns, with minor modifications, have remained essentially the same since World War I. They’re designed to spray out a hail of metal bullets in one general direction to shred people, supplies, command centers, and lightly armored vehicles. Smart bullets rarely have been envisioned. Machine guns strictly represent a curtain of firepower in one direction; it doesn’t much matter that most of the bullets miss their targets, as long as a few manage to hit home.

Read more

Jan 17, 2017

Scientists Can Now Sequence DNA With a Smartphone

Posted by in categories: biotech/medical, mobile phones

It was not so long ago that sequencing even tiny snippets of DNA was a costly, cumbersome process that required access to a state-the-art lab. Today, we are inching close to putting a DNA sequencer in every pocket.

Read more

Jan 17, 2017

New Surgery Can Give the Legally Blind 20/20 Vision

Posted by in category: biotech/medical

A small study conducted by researchers at Washington University School of Medicine in St. Louis, the Kresge Eye Institute at Wayne State University in Detroit, and the L.V. Prasad Eye Institute in India was published in the journal Ophthalmology. The research included 20 patients who had surgery for Terson syndrome, a specific type of hemorrhage caused mostly by traumatic injury, such as vehicular collisions. Some of the patients experienced this hemorrhaging in both eyes, thus allowing for the study of 28 eyes.

The procedure used to restore sight in these patients is known as a vitrectomy. The surgery removes the jellylike tissue behind the lens of the eye and replaces it with a saline solution. The patients were split into groups who had the surgery within three months of the hemorrhage and those who received it after the three month mark.

Read more