Posts

December 03, 2014

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1:51 PM | Ultra-stable, ultra-thin bonding technology for vacuum seal
Though it is less than 100 nanometers thick, the bond can withstand pressure up to 2 megapascals (almost 300 pounds per square inch), and its drift, or how much it shifts over time, is on the order of less than 3 trillionths of a meter per hour.
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1:47 PM | Uniform nanowire arrays for research and manufacturing
Researchers have achieved a breakthrough: Reproducible synthesis of gallium-nitride nanowires with controlled size and location on silicon substrates.
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1:41 PM | How is Ethanol Made?
Known as drinking alcohol, ethanol is the main type of alcohol present in alcoholic beverages. To be accurate, the term alcohol refers to a wider group of chemicals, but colloquially ethanol and alcohol are used interchangeably. This psychoactive compound is one of the oldest recreational drugs used by humans and if consumed in large amounts [...]
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10:15 AM | Computer model enables design of complex DNA shapes
Engineers computer-design the most complicated 3-D structures ever made from DNA.
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10:06 AM | Toshiba Develops Gold Nanocatalyst-Based Artificial Photosynthesis Technology
Toshiba Corporation announced the development of a new technology that uses solar energy, the power of the sun, to generate carbon compounds from carbon dioxide and water, and to deliver a viable chemical feedstock or fuel with potential for use in industry.
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10:00 AM | Colorful nano-guides to the liver
Scientists have been successful in producing highly specific nanoparticles. Depending on the bound dye the particles are guided to the liver or to the kidney and deliver their payload of active ingredients directly to the targeted tissue.
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9:47 AM | European Parliament agrees on moratorium on nanofoods and on a new legal definition of engineered nanomaterials
A majority of the members of the Environmental, Public Health and Food Safety (EHS) committee of the European Parliament approved several amendments to the draft regulation on novel foods, including one imposing a moratorium on novel foods containing nanomaterials. The EHS committee's amendments to the Commission's proposal show that the European Parliament and the European Commission clearly have two different approaches towards the regulation of nanotechnologies.
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9:39 AM | Elektronenpaare auf Knopfdruck
Phsyiker konnten erstmals die paarweise Emission von Elektronen aus einem Halbleiter-Quantenpunkt und deren anschließende räumliche Aufspaltung in zwei getrennte Leiter nachweisen.
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9:20 AM | OCSiAl Receives Technology Innovation Award for Its Game-Changing Carbon Nanotube Production Process
The patent-protected process allows commercialization of single-walled nanotubes that can revolutionize material science.
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7:23 AM | Taking self-assembly to the limits
Confining tiny gold colloids inside nanoscale templates reveals how to design complex structures beyond the capabilities of conventional lithography.
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7:21 AM | Carving out a golden opportunity
Upsetting the stability of super-small gold clusters generates multifaceted nanocrystals with potent catalytic properties.
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7:18 AM | A molecular thread
Flexible metal-organic frameworks with a range of pore sizes are made by threading through molecular ligands.
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7:12 AM | New technique simultaneously determines nanomaterials' chemical makeup, topography
Researchers have devised a powerful technique that simultaneously resolves the chemical characterization and topography of nanoscale materials down to the height of a single atom.

December 02, 2014

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8:22 PM | A better look at the chemistry of interfaces
New X-ray spectroscopy technique at Berkeley Lab's advanced light source for the study of heterogeneous interfaces.
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8:16 PM | Atmospheric carbon dioxide used for energy storage products
Chemists and engineers have discovered a fascinating new way to take some of the atmospheric carbon dioxide that's causing the greenhouse effect and use it to make an advanced, high-value material for use in energy storage products.
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8:09 PM | The Chemistry of Poinsettia Plants
Following on from the start of the Chemistry Advent Calendar yesterday, here’s another festive post, this time looking at the chemistry of the poinsettia plant. The red leaves of the poinsettia plant can be used to make a pH indicator, due to their chemical composition; this is actually something of an upgrade on one of the […]
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5:30 PM | A great question: why do holiday layoffs exist?
A respected reader writes in to ask, regarding the GSK announcement tomorrow:"Why does a company opt to let people know they are losing their jobs three weeks before Christmas?" I would actually go so far as to propose that, in the United States, that large-enough companies declare some sort of truce during the holidays. If I were a CEO, I would choose not to hold any reductions in force between say, Thanksgiving and New Year's. I realize that would basically cut out a month in a half […]
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5:25 PM | Reverse Seasonal Affective Disorder: People who get SAD in the Summer
By: Lina Jamis, 2nd year student in the Anatomy Graduate Program Snow-lovers rejoice—winter is coming! And no, this isn’t an allusion to Game of Thrones. With the end of Daylight Savings, the days are becoming darker earlier, which for some can mean the onset of the winter blues. The medical term for this is Seasonal Affective Disorder…
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4:37 PM | Daily Pump Trap: 12/2/14 edition
Just a few positions posted on C&EN Jobs this past week, not a whole bunch: Houston, TX: Aramco is looking for a lab tech with "Minimum two (2) years of college or an Associate Degree in related-science major required; Bachelor degree in related science discipline preferred. Nine (9) years industrial research lab experience"Super specific -- H-1b related position? Morristown, NJ: Honeywell is looking for a M.S./Ph.D. analytical chemist to be a lead analytical chemist. Organic and […]
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4:35 PM | Carbon nanotubes may restore sight to blind retinas
Retinal degeneration is one of the most worrisome dangers in the aging process. Now, researchers have made an important technological breakthrough towards a prosthetic retina that could help alleviate conditions that result from problems with this vital part of the eye.
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4:15 PM | Post-Thanksgiving Hangover
It was quite a Thanksgiving weekend for me, so I'm behind on a lot of things. Consequently, today's post is pretty simple and quick to get out. The British website Sciencecraft published a Q & A with me on Friday. Since I'm sure many Americans were out shopping for Black Friday specials and dozing off after eating turkey sandwiches, you might have missed it. I was asked a lot of wide-ranging questions and gave back even more wide-ranging answers, so I'm sure someone will take issue with […]
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4:01 PM | Ivory Filter Flask: 12/2/14 edition
A few of the academically-related positions recently posted at C&EN Jobs:New Haven, CT: The University of New Haven is looking for an assistant professor of analytical chemistry. Santa Barbara, CA: Santa Barbara City College is looking for a chemistry instructor. B.S./M.S./Ph.D. desired:The current salary schedule range for a entering tenure-track faculty member is $55,435-$85,364, plus an earned doctoral bonus of $2,771.75. Depending on the entry step, the faculty member increase one […]
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3:43 PM | Chemists use nanotechnology to fabricate novel rewritable paper
Chemists have fabricated novel rewritable paper, one that is based on the color switching property of commercial chemicals called redox dyes. The dye forms the imaging layer of the paper. Printing is achieved by using ultraviolet light to photobleach the dye, except the portions that constitute the text on the paper. The new rewritable paper can be erased and written on more than 20 times with no significant loss in contrast and resolution.
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3:32 PM | Taming the Boltzmann equation
Physicists have developed a new algorithm that is capable of solving the Boltzmann equation for systems of self-propelled particles. The new method also reveals previously unknown patterns of collective motion in such systems.
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3:19 PM | Lengthening the life of high capacity silicon electrodes in rechargeable lithium batteries
Novel rubber-like coating could lead to longer lasting batteries.
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2:34 PM | Video: Contract Packing
Contract packing in the chemical industry is a controlled and regulated service. My chemical manufacturing company, ReAgent is well-equipped to carry out contract packing procedures thanks to our experience and knowledge of the industry. Due to the hazardous and fragile nature of chemical products, they have to be stored in a container that’s compatible with [...]
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2:19 PM | Source code of nano-archimedes now online
nano-archimedes is a Technology Computer Aided Design tool for the simulation of various technology relevant situtations involving the dynamics of electrons such as the transport in nanometer scale semiconductor devices (nanodevices) and the dynamics of N-body problems in quantum chemistry.
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2:13 PM | Nutrition, safety key to consumer acceptance of nanotechnology, genetic modification in foods
New research shows that the majority of consumers will accept the presence of nanotechnology or genetic modification technology in foods - but only if the technology enhances the nutrition or improves the safety of the food.
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2:00 PM | Interstellar Carbon Nanoparticles: From Dull to Shiny
How many of us have ever heard the phrase “Like a diamond in the sky”? There is actually some truth to this expression that astronomers have known for many years. There are in fact tiny, shiny, and colorful diamonds in outer space. One piece of evidence of their existence is their presence in meteorites found […]
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1:55 PM | Researchers take first pictures of baby nanotubes
In a step toward understanding the factors that influence how nanotubes form, researchers have succeeded in filming them when they are only a few atoms old. These nanotube 'baby pictures' give crucial insight into how they germinate and grow, potentially opening the way for scientists to create them en masse with just the properties that they want.
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