Posts

November 14, 2014

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12:10 PM | Exam Drug Fail
Exam season is always a stressful time for students and every time it comes around everyone prepares in their own to make sure they can perform their best, even if it means taking performance enhancing drugs. There’s a prescription drug called Modafinil that can enhance your concentration. Personally I've never heard of anything like this till yesterday, the only drug I heard of at exam season is caffeine pills. Loads of students would take caffeine pills at exam season to […]
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10:14 AM | Chemists develop nanoporous molecules that bind greenhouse gases
Chemists have developed a molecule that assembles spontaneously into a lightweight structure with microscopic pores capable of binding large quantities of several potent greenhouse gases.
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10:08 AM | New form of crystalline order holds promise for thermoelectric applications
A research team reports that it has discovered an entirely new form of crystalline order that simultaneously exhibits both crystal and polycrystalline properties and holds promise for improving the efficiency of thermoelectric devices.
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7:52 AM | A nanolamp with lightning-fast switch
A light source and its transistor-operated brightness control shrink to the size of a single molecule.
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7:47 AM | Electrons move in different circles
Scanning tunneling microscopy reveals the exotic properties of an unusual type of electron.
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7:34 AM | 'Topological insulators' promising for spintronics, quantum computers
Researches have uncovered 'smoking-gun' evidence to confirm the workings of an emerging class of materials that could make possible spintronic devices and practical quantum computers far more powerful than today's technologies.
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7:23 AM | Light-harvesting: Mimicking photosynthesis with man-made leaves
A new, efficient light-harvesting system based on the principles of natural photosynthesis is developed by researchers at Tokyo Tech.
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1:45 AM | Publication of the week, number 51, 14th November 2014
This week’s offering appeared in Angewandte Chemie and was presented by Prof. Waldmann and discusses his results with the 1,3-dipolar cycloaddition leading to the 4,7-diazabicyclo[4.3.0]nonane unit which is an integral part of various alkaloids such as ajmaline, vallesamidine and so on. The process under discussion is of course well described in the literature and I have commented […]

November 13, 2014

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10:39 PM | On the Record
In the summer issue of the magazine we asked readers to submit their personal stories about pH meters. One of our readers, Alan Weiss, sent us a compelling tale that involves a tannery, a Beckman Model G pH meter, and a lot of guts. I graduated from P. S. duPont High School in Wilmington, Delaware, in January 1945, at the tender age of 16.  Just about all of my classmates went directly into military service, since World War II was still raging. But not me. I was too young. I […]
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10:39 PM | On the Record
In the summer issue of the magazine we asked readers to submit their personal stories about pH meters. One of our readers, Alan Weiss, sent us a compelling tale that involves a tannery, a Beckman Model G pH meter, and a lot of guts. I graduated from P. S. duPont High School in Wilmington, Delaware, in January 1945, at the tender age of 16.  Just about all of my classmates went directly into military service, since World War II was still raging. But not me. I was too young. I […]
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9:43 PM | VSEPR & Shapes of Molecules
One for the chemistry students (and teachers!) out there today, with a look at how we can work out the shapes of some simple molecules using Valence Shell Electron Pair Repulsion (VSEPR) theory. These shapes are decided by the arrangement of electrons around the central atom in the molecule. VSEPR works on the assumption that the […]
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6:51 PM | La première guerre mondiale et le tabagisme
Les Manchettes scientifiques d’Ariel Fenster «Si vous me demandez ce dont nous avons besoin pour gagner cette guerre; je réponds, du tabac autant que des balles». C'est ainsi que le général John Pershing, commandant du corps expéditionnaire américain répond en 1917 à Washington. Une illustration du rôle que jouait le tabac dans […]
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5:46 PM | Help a chemist? Analytical chemist looking in southern California area
A reader writes in to say that they are looking for a position for an experienced M.S. analytical chemist in the southern California area. Lots of GC experience, pesticide method development in GLP environmental, 4 years of QC lab experience w/HPLC, GCMS, and LD/TD-MS. Anybody know of any positions available? If so, e-mail me at chemjobber -at- gmail/dot/com and I'll put them/you in touch. Feel free to leave "situations wanted" ads in this thread -- try to keep them under ~200 words,
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4:51 PM | Bio-inspired bleeding control with platelet-like nanoparticles
Taking a cue from the human body's own coagulation processes, researchers synthesize platelet-like nanoparticles that can do more than clot blood.
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4:42 PM | AFM Raman workshop focusing on both Tip Enhanced Raman and co-localised AFM Raman
Bruker and Renishaw would like to invite you to an AFM Raman workshop focusing on both Tip Enhanced Raman and co-localised AFM Raman on Tuesday 25th November.
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4:35 PM | Gastronomía en el límite (V): Coprinus atramentarius [Bonus: La muerte de Keith Moon]
Todas las setas son comestibles. Todas...... lo que ocurre es que algunas solo se pueden comer la primera vez. :-PVale. No huyáis todavía. Chascarrillos aparte hoy hablaremos de un hongo que puede comerse las veces que te dé la gana sin que produzca ningún efecto tóxico adverso. Bueno, eso no es del todo cierto porque si bebes alcohol después de consumirlo, aunque sea en poca cantidad, te puedes poner muy malito.Nunca lo mezcles con alcohol | […]
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4:17 PM | A highly robust, efficient nanoparticle-based platform to advance stem cell therapeutics
Researchers have developed a highly robust, efficient nanoparticle-based platform that can regulate gene expression and eventually stem cell differentiation. NanoScript is the first nanomaterial TF protein that can interact with endogenous DNA.
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4:12 PM | Molybdenum disulfide has emerged as a leading successor to graphene
Northwestern University's Mark Hersam is working to isolate atomically thin layers of molybdenum disulfide, a material with applications in electronics, optoelectronics, solar cells, and catalysis.
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2:50 PM | Job posting: organic chemist, Rochester, NY and analyst, Henderson, CO
From the inbox:"Might be a great job for someone with general organic synthesis skills and especially with small-scale chemical development experience. Of course, the person would have to be willing to go over to the Dark Side of materials chemistry..."Orthogonal Inc. in Rochester, NY, is seeking a Research Organic Chemist to carry out the design and synthesis of specialty photoactive compounds and polymers. The position requires:PhD in Organic Chemistry or related field 0 - 10 years […]
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2:44 PM | Daily Pump Trap: 11/13/14 edition
Good morning! A few of the industrial positions posted on C&EN Jobs: Chicago, IL: A company is looking for a glovebox salesperson? Interesting, never seen that before.Dayton, OH: UES (a defense contractor) is looking for a Ph.D. polymer researcher.When an organization's internal language meets the outside: I didn't know that Colorado Springs was home of the National Swimming Pool Foundation, or that they had need of a Ph.D. chemist to be a product development manager. But the language […]
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12:49 PM | New way to move atomically thin semiconductors for use in flexible devices (w/video)
Researchers have developed a new way to transfer thin semiconductor films, which are only one atom thick, onto arbitrary substrates, paving the way for flexible computing or photonic devices.
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11:24 AM | Shaking the topological cocktail of success
Take ultracold potassium atoms, place a honeycomb lattice of laser beams on top of them and shake everything in a circular motion: this recipe enabled ETH researchers to implement an idea for a new class of materials first proposed in 1988 in their laboratory.
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11:18 AM | Nanomaterials play a central role in effort to protect water quality
Arizona State University engineers will work as part of a new national center for research and innovation in small- and medium-sized drinking water systems.
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11:14 AM | Engineers efficiently 'mix' light at the nanoscale
Researchers have engineered a nanowire system that could pave the way for this ability, combining two light waves to produce a third with a different frequency and using an optical cavity to amplify the intensity of the output to a usable level.
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11:10 AM | New Insights on Kondo Effect
Researchers visualized the electronic interactions of magnetic impurities in metals. In doing so, they discovered that the electron patterns which arise around magnetic foreign atoms as a result of the Kondo effect interact over greater distances than previously thought. The insights from the examination of a simple model system could be beneficial in understanding materials with complex electronic structures. (in German)
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10:09 AM | NPL and U Manchester partnership to accelerate commercialisation of graphene
The National Physical Laboratory (NPL) and The University of Manchester have signed a memorandum of understanding to help move the potential benefits of graphene closer to practical use, by accelerating the commercialisation of the remarkable 2D material.
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8:29 AM | Graphene electrodes for simultaneous electrophysiology and neuroimaging
Studying the complex wiring of neural circuits and identifying the details of how individual neural circuits operate in epilepsy and other neurological disorders requires real-time observation of their locations, firing patterns, and other factors. These observations depend on high-resolution optical imaging and electrophysiological recording. Researchers have now developed a completely transparent graphene microelectrode that allows for simultaneous optical imaging and electrophysiological […]
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8:15 AM | Industry partnership supports Australian production of next-generation photonics
An optical oscilloscope with 20 times the resolution of conventional electronics has been developed by the ARC Centre for ultrahigh bandwidth devices for optical systems (CUDOS) at the University of Sydney and the Australian National University.
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8:10 AM | NIH award for cancer diagnosis with photoswitchable nanoparticles
University of Arkansas for Medical Sciences researcher Vladimir Zharov recently was awarded a $1.5 million R01 grant by the National Institutes of Health to investigate his diagnostic concept - 'in vivo reading written in blood' - with new stimuli-responsive nanoparticles circulating in blood.
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8:05 AM | Switching on the future: Electronic switches on the molecular scale
A research team in Japan has shown that a molecular electronic switch with multi-conductance states (for example, high, medium and low states) is possible using a single quarter thiophene-based junction. In this new switch, the switching behavior is triggered by external mechanical force.
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