Posts

April 10, 2015

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1:21 PM | Getting CAS registry numbers out of WikiData
doi 10.15200/winn.142867.72538I have promised my Twitter followers the SPARQL query you have all been waiting for. Sadly, you had to wait for it for more than two months. I'm sorry about that. But, here it is:PREFIX wd: <http://www.wikidata.org/entity/>SELECT ?compound ?id WHERE {  ?compound wd:P231s [ wd:P231v ?id ] .}What this query does is ask for all things (let's call whatever is behind the identifier is a "compound"; of course, it can be mixtures, ill-defined […]
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12:12 PM | New insights into graphene and organic composites in electronics
Chemists from Europe's Graphene Flagship review the potential for graphene-organic composite materials in electronics. The researchers show how organic semiconductors can be used to better process graphene, and to tune its properties for particular applications.
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12:07 PM | Scientists use nanotechnology to visualize potential brain cancer treatments in real time
Scientists have developed new imaging techniques to watch dangerous brain tumor cells respond to treatment in real time.
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12:01 PM | Electronic charge distribution on the atomic scale
Scientists have made an important step towards a deeper understanding of metal-semiconductor interfaces. By means of a novel experimental approach the researchers investigated the distribution of the electronic charge at these interfaces on the atomic scale.
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10:19 AM | Spontaneous formation of biomimetic, nanoporous membrane channels
Carbon nanotubes insert into artificial and active cell membranes, reproducing major features of biological channels.
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10:08 AM | How many gold atoms make gold metal?
Researchers have shown that dramatic changes in the electronic properties of nanometre-sized chunks of gold occur in well-defined size range.
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9:09 AM | A smectic liquid crystal that overcomes many of the challenges posed by organic field effect transistor materials
Researchers designed a molecule that would incorporate a number of desirable liquid crystal qualities, in particular the smectic E phase. Low ordered liquid crystal phases form droplets at their melting temperature, but the smectic E phase has the advantage of retaining the thin-film shape.
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8:49 AM | Research could usher in next generation of batteries, fuel cells
Scientists have made a discovery that could dramatically improve the efficiency of batteries and fuel cells. The research involves improving the transport of oxygen ions, a key component in converting chemical reactions into electricity.
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8:38 AM | Plant cell structure discovery could lead to improved renewable materials
Major steps forward in the use of plants for renewable materials, energy and for building construction could soon arise, thanks to a key advance in understanding the structure of wood.
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8:32 AM | Graphene looking promising for future spintronic devices
Researchers have discovered that large area graphene is able to preserve electron spin over an extended period, and communicate it over greater distances than had previously been known. This has opened the door for the development of spintronics, with an aim to manufacturing faster and more energy-efficient memory and processors in computers.
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8:27 AM | The History of Vitamin C
“No Scurvy” Ascorbic Acid was the first chemical compound to be synthesised. It is now commonly known as Vitamin C, an essential vitamin which helps to prevent disease and infection. In bygone days, the disease known as ‘scurvy’ was widespread amongst sailors who lacked Vitamin C in their diets as they were away at sea [...]
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7:13 AM | A research to find the optimum conditions for the growth of GaN nanowires
The aim of this research is to find the optimum conditions for the growth of GaN nanowires. This means obtaining nanostructures with the best characteristics for developing applications. For instance, the position control of these structures on diamond is strongly desired for quantum computation.
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6:53 AM | Nanosurf Announces 4th FluidFM User Meeting
Topics include: single-cell manipulation, spotting and lithography, and instrument development.
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6:34 AM | Engineers now understand how complex carbon nanostructures form
Understanding how nanotube forests are created could lead to advancements in aerospace and biomedical applications.
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6:29 AM | Nanopillar fabrication to lead to more efficient electronics
An engineering researcher will build nanoscale pillars that will lead to more energy-efficient transistors in electronic devices and gadgets.
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3:36 AM | Publication of the week, number 72, 10th April 2015
This week sees the birth of a new chiral auxiliary in Texas. The Montchamp group describe the synthesis of a (-)-8-phenylmenthol analogue which is cheap and readily available in both enantiomeric forms: It is made, as one would expect, by a Suzuki coupling of the 8-iodotetralone which is obtained from the corresponding tetrahydro-1-naphthylamine. So the 5 steps … Continue reading Publication of the week, number 72, 10th April 2015 →

April 09, 2015

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7:00 PM | Erupting electrodes: how recharging leaves behind microscopic debris inside batteries (w/video)
Identifying where buildup comes from will lead to improved rechargeable batteries.
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6:54 PM | Chemists create tiny gold nanoparticles that reflect nature's patterns
Our world is full of patterns, from the twist of a DNA molecule to the spiral of the Milky Way. New research has revealed that tiny, synthetic gold nanoparticles exhibit some of nature's most intricate patterns.
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5:27 PM | A Rough Guide to Types of Scientific Evidence
Today’s graphic looks at science in general, rather than just chemistry. It’s in a similar vein to the Rough Guide to Spotting Bad Science posted last year, but this time looking at the hierarchy of different types of scientific evidence. You might think science is science, but some evidence is ranked higher in the scientific community than […]
Editor's Pick
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5:02 PM | Multimetal nanoframes improve catalyst performance
Concentrating noble-metal catalyst atoms on the surface of porous nano-frame alloys shows over thirty-fold increase in performance.
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4:26 PM | Where there’s sludge there’s, um, ferrocene?
Guest post by Rowena Fletcher-Wood Nobody had thought to study the orange sludge that was scraped off the Union Carbide pipes after manufacturing cyclopentadiene, but perhaps they should have done. When chemists eventually set their gaze on this colourful by product, the ensuing discovery of ferrocene catalysed a branch of research. Organometallics had proved themselves a [...]
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3:14 PM | New understanding of electromagnetism could enable 'antennas on a chip'
New understanding of the nature of electromagnetism could lead to antennas small enough to fit on computer chips - the 'last frontier' of semiconductor design - and could help identify the points where theories of classical electromagnetism and quantum mechanics overlap.
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3:14 PM | Daily Pump Trap: 4/9/15 edition
Good morning! A few of the positions posted on C&EN Jobs recently:Richmond, VA: So I'd really like to know what this "Senior Scientist Postdoc" position with Eurofins is about. They'd like industry experience as well.What the hell? Bluntly put, if it's a postdoctoral fellowship, it sure as hell isn't a "senior scientist" position.Mansfield, TX: Tyco Fire Protection hiring a B.S./M.S. analytical chemist - something tells me that'd be a pretty interesting position.Stanhope, NJ: This "senior […]
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2:38 PM | A molecular modeler to his beloved (medicinal chemist)
With all apologies to W. B. YeatsOriginal:"I BRING you with reverent hands The books of my numberless dreams; White woman that passion has worn As the tide wears the dove-gray sands, And with heart more old than the horn         That is brimmed from the pale fire of time: White woman with numberless dreams I bring you my passionate rhyme."
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2:16 PM | Material Choices and Testing Protocols for Condoms
Last week Slate magazine published an in-depth article entitled "We Should Have a Better Condom by Now. Here’s Why We Don’t." Before clicking on the link, I would suggest proceeding with caution, as there numerous photographs of condoms on all manners of produce items. In other words, it may be a little bit unsafe for work. Or around children. Or your parents. But I would recommend reading it if you are interested. It provides a serious look at the many sides of something that has […]
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12:35 PM | "The fox knows many things, but the hedgehog knows one big thing."
“The fox knows many things, but the hedgehog knows one big thing.” - Attributed to Greek poet Archilochus in Isaiah Berlin’s The Hedgehog and The Fox; later the epigraph to Green, Fagan and Jaeger (2014) Explanatory Integration Challenges in Evolutionary Systems Biology. Evolutionary systems biologists must be like Tolstoy in Isaiah Berlin’s famous essay “The Hedgehog and the Fox” (1953): part fox, part hedgehog. For the fox knows a little about many […]
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11:30 AM | Journal of Chemical Health & Safety, March-April issue
Here’s what’s in the March-April issue of t […]Related Posts:Journal of Chemical Health & Safety, November-December…Journal of Chemical Health & Safety, January-February…Free chemical health and safety journal articlesThe principles of “inherently safer” processes…Lessons learned videos from Cornell on PPE and transporting…
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2:57 AM | Novel photolithographic technology that enables control over functional shapes of microstructures
Researchers have developed a novel photolithographic technology enabling control over the functional shapes of micropatterns using oxygen diffusion.
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1:37 AM | Researchers develop a harmless artificial virus for gene therapy
Researchers managed to create artificial viruses, protein complexes with the ability of self-assembling and forming nanoparticles which are capable of surrounding DNA fragments, penetrating the cells and reaching the nucleus in a very efficient manner, where they then release the therapeutic DNA fragments. The achievement represents an alternative with no biological risk to the use of viruses in gene therapy.
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1:26 AM | Scientists use ultrasound waves to produce fullerene
Researchers used a simple, fast and effective method to produce fullerene nanostructures by applying ultrasound waves.
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