Posts

October 30, 2014

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3:28 AM | Another day, another new synthetic cannabinoid...
The state of Louisiana has just banned another new synthetic cannabinoid derivative which has been associated with greater than 125 hospitalizations in the Baton Rouge vicinity since October 3, 2014 (I am not sure if these were analytically confirmed in blood/urine; I'm assuming not - I do not know any person or lab that is analyzing for this compound).The newer synthetic cannabinoid is named MAB-CHMINACA, but is probably more widely known as ADB-CHMINACA.ADB-CHMINACA (pictured above with other […]
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1:53 AM | Traveling to Prison, There Are No Systems
This post is part of a collaborative narrative series composed of my writing and Chris Arnade’s photos exploring issues of addiction, poverty, prostitution and urban anthropology in Hunts... -- Read more on ScientificAmerican.com

October 29, 2014

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10:29 PM | Electron Paramagnetic Resonance of hair!
I wanted to switch gears a bit and do a paper on Electron Paramagnetic Resonance (EPR), also know as Electron Spin Resonance (ESR).  The paper for this weeks isElectron spin resonance (ESR/EPR) of free radicals observed in human red hair: a new, simple empirical method of determination of pheomelanin/eumelanin ratio in hair.byChikvaidze EN, Partskhaladze TM and Gogoladze […]

Chikvaidze, E., Partskhaladze, T. & Gogoladze, T. (2014). Electron spin resonance (ESR/EPR) of free radicals observed in human red hair: a new, simple empirical method of determination of pheomelanin/eumelanin ratio in hair, Magnetic Resonance in Chemistry, 52 (7) 377-382. DOI: 10.1002/mrc.4075

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6:43 PM | Experts cautious over Google nanoparticle project
A Google project to develop nanoparticles that can detect cancer cells inside the body is a useful contribution but faces important hurdles, experts said on Wednesday.
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6:40 PM | Tiny carbon nanotube pores make big impact
Researchers have created a new kind of ion channel consisting of short carbon nanotubes, which can be inserted into synthetic bilayers and live cell membranes to form tiny pores that transport water, protons, small ions and DNA.
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5:45 PM | Schrodinger and Hawking in the Starbucks line
This list of entries entitled 'literary Starbucks' speculates what different well-known writers and fictional characters would order based on their personalities if they were to suddenly turn consumerist and appear in the Starbucks around the corner. Here's a sample involving "To Kill a Mockingbird" star Atticus Finch:"Atticus Finch goes up to the counter and orders the one drink on the menu that no one else was brave enough to get. As he walks out, everyone else stands up in […]
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5:03 PM | Amorphous coordination polymer particles as alternative to classical nanoplatforms for nanomedicine
Researchers in Spain have published a series of works developing robust nanoparticles based on coordination polymers for application on theranostics.
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3:31 PM | Comparing Burger Chains and Oil Companies
According to QSRmagazine.com, the top burger chains in the US areMcDonaldsBurger KingWendy'sSonicJack in the BoxDairy QueenHardee'sCarls Jr.WhataburgerSteak and ShakeFive GuysCulver'sCheckers/Rally'sWhite CastleIn-and-OutKrystalI haven't eaten at all these chains as some of them are limited to certain portions of the country. But Krystal? I've never even heard of them.According to Petrostrategies.org, the largest oil and gas companies in the world by reserves areSaudi AramcoNational Iranian Oil […]
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3:11 PM | 'Electronic skin' from nanoparticles could improve early breast cancer detection
For detecting cancer, manual breast exams seem low-tech compared to other methods such as MRI. But scientists are now developing an 'electronic skin' that 'feels' and images small lumps that fingers can miss. Knowing the size and shape of a lump could allow for earlier identification of breast cancer, which could save lives.
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3:06 PM | Microrockets fueled by water neutralize chemical and biological warfare agents
With fears growing over chemical and biological weapons falling into the wrong hands, scientists are developing microrockets to fight back against these dangerous agents, should the need arise. In a new paper, they describe new spherical micromotors that rapidly neutralize chemical and biological agents and use water as fuel.
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12:34 PM | New solar power nanotechnology material converts 90 percent of captured light into heat
A multidisciplinary engineering team developed a new nanoparticle-based material for concentrating solar power plants designed to absorb and convert to heat more than 90 percent of the sunlight it captures. The new material can also withstand temperatures greater than 700 degrees Celsius and survive many years outdoors in spite of exposure to air and humidity.
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12:25 PM | Nano ruffles in brain matter
Researchers decipher the role of nanostructures around brain cells in central nervous system function.
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11:15 AM | Nanosafety research: Are scientists on the right track?
Empa toxicologist Harald Krug has lambasted his colleagues in the journal Angewandte Chemie. He evaluated several thousand studies on the risks associated with nanoparticles and discovered no end of shortcomings: poorly prepared experiments and results that don't carry any clout. Instead of merely leveling criticism, however, Empa is also developing new standards for such experiments within an international network.
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9:21 AM | Two-thirds to go!
As my colleague Dr Rob Jackson has just reminded me by way of a blog post, the semester is 1/3 over! He has a great picture on his blog related to his Forensics Arson course. My current crop of courses … Continue reading →
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8:35 AM | A nano-thermodynamic look at gold-copper alloys
Gold-copper alloys are very popular catalysts in nanotechnology, for instance to efficiently convert carbon dioxide or to help fabricate a more powerful and longer lasting fuel cell material. This alloy exhibits novel physical and chemical properties at the nanoscale. Although the Au-Cu alloy has been extensively studied in the literature both at the bulk and nanoscales, the prediction of phase diagrams at the nanoscale has been missing. A new paper present sthe phase diagram of Au-Cu at the […]
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8:23 AM | Gold nanoparticle chains confine light to the nanoscale
Researchers have shown that crystalline gold nanoparticles aligned and then fused into long chains can be used to confine light energy down to the nanometer scale while allowing its long-range propagation.
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7:02 AM | Imec, Coventor Partner to Drive Advanced CMOS Process Development Through Virtual Fabrication
Imec researchers using Coventor's SEMulator3D platform to model and optimize 7nm manufacturing technology.
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6:46 AM | Imaging of electrons moving around at 80,000m per second in semiconductor
Researchers succeeded in direct observation and video imaging of electron flow at 80,000m per second in a semiconductor. They did so by combining a new laser pulse light source and a photoemission electron microscope (PEEM) to develop an ultra high-speed microscope that enabled visualization of electrons on a 20 nanometer and 200 femtosecond scale.
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2:09 AM | What’s Allowed in Prison? Not Hair Conditioner
This post is part of a collaborative narrative series composed of my writing and Chris Arnade’s photos exploring issues of addiction, poverty, prostitution and urban anthropology in Hunts... -- Read more on ScientificAmerican.com
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1:02 AM | Frankenstein and the monster in an age of NIH funding
Frankenstein and his monster on Broadway(Image: dvdbeaver.com)The Nobel Prize-winning physicist Robert Laughlin is one of those rare minds who combines a wide-ranging knowledge of many fields with a wicked sense of humor and a devil-may-care attitude. This combination of gifts is on full display in his wonderful book "More is Different", a volume that at its heart is about the limitations of reductionism in physics and the manifestations of emergence but which tends to gambol around a […]

October 28, 2014

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7:37 PM | Can the wave function of an electron be divided and trapped?
Electrons are elementary particles - indivisible, unbreakable. But new research suggests the electron's quantum state - the electron wave function - can be separated into many parts. That has some strange implications for the theory of quantum mechanics.
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6:38 PM | The Chemistry of The Colours of Blood
Halloween’s almost here, which, for a large number of costumes, will require a liberal dousing of fake blood to complete the look. You probably already have a pretty good idea of the reasons behind the red colouration of human blood that fake blood mimics. However, red is not the only blood colour available – it also […]
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5:53 PM | ucsdspecialcollections: Images from the Jonas Salk Papers,...
ucsdspecialcollections: Images from the Jonas Salk Papers, 1926-1991 Dr. Jonas Salk was born on this day in 1914 Dr. Jonas Salk is best known for his development of the world’s first successful vaccine for the prevention of poliomyelitis, licensed in the U.S. in 1955. He has also conducted important research in the prevention and treatment of influenza, multiple sclerosis, cancer, and acquired immune deficiency syndrome. The Salk Papers constitute an exhaustive source of documentation […]
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5:53 PM | ucsdspecialcollections: Images from the Jonas Salk Papers,...
ucsdspecialcollections: Images from the Jonas Salk Papers, 1926-1991 Dr. Jonas Salk was born on this day in 1914 Dr. Jonas Salk is best known for his development of the world’s first successful vaccine for the prevention of poliomyelitis, licensed in the U.S. in 1955. He has also conducted important research in the prevention and treatment of influenza, multiple sclerosis, cancer, and acquired immune deficiency syndrome. The Salk Papers constitute an exhaustive source of documentation […]
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2:52 PM | Board games - science style
Last week I was at Spiel, the largest board game convention of Europe in Essen, Germany. I played a shed load of board games with concepts ranging from collecting the most bananas to hanging up life sized washing. I also played a couple games with a scientific theme, which is a rare event in the board gaming world.Can you save humanity?One game that I played at the convention is really going viral at the moment (pun intended). This was Pandemic: Contagion. The game is a spin off from the board […]
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2:50 PM | Daily Pump Trap: 10/28/14 edition
A few of the positions posted on the C&EN Jobs website recently:St. Louis, MO: Monsanto desires a Ph.D. chemist to perform research into microbial formulations -- sounds fascinating. (What kind of technology is this aimed at?)Silver Spring, MD: WSSC is a municipal water utility; they're looking for a laboratory QA/QC position. 61-103k for a B.S., 5+ years experience.West Springfield, MA: Cyalume is, once again, looking for a senior chemist at its facility. High turnover?Ever wonder what an […]
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2:40 PM | Ivory Filter Flask: 10/28/14 edition
A few of the academically-related posted posted recently at C&EN Jobs:New York, NY: Columbia University is looking for an assistant professor of chemical biology. Also, a professor of organic chemistry is being sought. (Interesting addition of "non-tenured associate professor".)Durham, NC: This Duke University "therapeutic bioengineering" professorship sounds fascinating.And across the way...: UNC - Chapel Hill is looking for a M.S./Ph.D. chemist for a lab coordinator position.Urbana, […]
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2:17 PM | 'Reverse engineering' materials for more efficient heating and cooling
A new way to calculate the electrical properties of individual components of composite materials could open a path toward more energy-efficient medical refrigerators, air-conditioned car seats and more.
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2:10 PM | Physicists' simple solution for quantum technology challenge
Researchers show how to make a new type of flexibly designed microscopic trap for atoms.
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1:02 PM | Self-assembly of layered membranes
Recently, scientists used self-assembly under controlled conditions to create a membrane consisting of layers with distinctly different structures. Now, the team utilized small-angle x-ray scattering (SAXS) to better determine these structures and study how they form. This new information paves the way for design and synthesis of hierarchical structures with biomedical applications.
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