Posts

March 12, 2015

+
10:54 AM | Raspberry-like nanostructures as light-bending metamaterials
Researchers have devised a way of mass-producing metamaterials that exhibit magnetic resonance in optical frequencies. Called 'raspberry-like metamolecules' due to their unique shape, these nanoscale structures could be used as building blocks for metamaterials that could scatter light as if they had magnetic properties, which could be relevant to applications in optical processing and signal handling.
+
10:15 AM | Dunkin' Donuts ditches nano titanium dioxide - but is it actually harmful?
In response to pressure from the advocacy group As You Sow, Dunkin' Brands has announced that it will be removing allegedly 'nano' titanium dioxide from Dunkin' Donuts? powdered sugar donuts.
+
9:30 AM | KR's big chemistry break: knowing about HPLC tailing
Last week, I posted on my "big break" into industrial chemistry and lots of you contributed in the comments. See Arr Oh has a nice post on his break. I also received "KR"'s story by e-mail: One and half years out of undergrad, I was contentedly working at a contract lab. The prospects for growth weren't phenomenal, but I just wanted to get familiar with mass spec while figuring out if industry was the right place for me. The money wasn't great, but the work was interesting.  I […]
+
8:23 AM | New metal-organic framework material captures carbon at half the energy cost
Chemists have made a major leap forward in carbon-capture technology with a material that can efficiently remove carbon from the ambient air of a submarine as readily as from the polluted emissions of a coal-fired power plant.
+
8:15 AM | U.S. National Nanotechnology Initiative 2016 funding brings total to $22 billion
Cumulatively totaling more than $22 billion since the inception of the NNI in 2001, this funding reflects nanotechnology's potential to significantly improve our fundamental understanding and control of matter at the nanoscale and to translate that knowledge into solutions for critical national needs.

March 11, 2015

+
10:20 PM | “Metal-Organic Frameworks: A New Class of Crystalline Porous Materials”
“Metal-Organic Frameworks: A New Class of Crystalline Porous Materials” published by Lambert Academic Publishing, 2014, is a book written by Dr Behnam Seyyedi on the emerging porous materials of metal-organic frameworks (MOFs). The term MOF was coined by Omar Yaghi in 1995 (1). MOFs consist of both organic and inorganic building entities, where the organic ligands, i.e. spacers, are coordinated to the metal ion clusters, i.e. nodes, to create extended frameworks. In some cases, the […]
+
9:01 PM | Why do we remember bad memories easier than good ones?
How many times have you found yourself recollecting a bad memory?It doesn't even have to be a very bad memory,  it could be a sad moment, a moment which angered you or even an embarrassing moment. But it is definitely prominent in your mind.All of these things could have happened years ago and you don't want to remember them but they still come back and haunt you from time to time.But the question is why do we remember  these bad memories more than good ones? Time to think […]
+
8:38 PM | Same As It Ever Was
The next issue of our magazine—the very first issue of Distillations, by the way—takes a look at World War I and the history of chemical weapons. In the months I spent working on the articles, I was struck time and again by the cruelty and stupidity of war and things men are willing to do to one another. More than anything, I’m putting the issue to bed with my beliefs reaffirmed that war is a horrible, pointless thing. This is evident in the staggering numbers of those injured […]
+
7:38 PM | Perovskites can improve fabrication of ceramic electronics
Scientists in Japan are finding that perovskites have the potential to improve the fabrication of electrodes and wiring in ceramic-based electronics such as spark plugs.
+
3:59 PM | Optically controlled micro-elevator precisely moves nanoparticles
Tiny glass nanospheres coated on one side with a very fine gold film: Scientists have shown that particles modified in this way can be moved about with high precision using laser beams, creating an optically controlled micro-elevator.
+
3:41 PM | A little plutonium history
From this week's C&EN, a fun little bit of chemical history in the letters to the editor:  As reported by Richard Strickert in his 2009 letter to the editor, the first sample of plutonium produced by Glenn Seaborg and his collaborators that was large enough to be weighed was on display for a number of years at the at University of California, Berkeley, Lawrence Hall of Science (C&EN, April 9, 2009, page 2). At some point in the late 2000s, as a result of both financial and […]
+
3:38 PM | Waste Plastic in the Oceans - A Comparison of the Inputs from Two Countries
The journal Science published last month a new report ($) that attempted to quantitate the various global inputs that going into making up ocean plastic, perhaps better known as the "Great Garbage Patches". The major media outlets focussed on the fact that the amount of plastic in the patches is quite a bit less than expected. But the American media overlooked (by and large) this chart:SourceThis chart alone goes a long ways towards suggesting that the US isn't contributing as much garbage to […]
Editor's Pick
+
2:50 PM | Top 10 Centrifuges
What is a Centrifuge? A centrifuge is a piece of technical equipment which works by spinning liquids quickly around a fixed axis in a circular motion. The motion of the equipment generates a “centrifugal force” and its aim is to separate parts of the liquid. Denser substances get pushed outwards, and  the less dense substances are [...]
+
2:34 PM | Silk could be new 'green' material for next-generation batteries
Researchers found a way to process natural silk to create carbon-based nanosheets that could potentially be used in energy storage devices.
+
2:31 PM | Graphene: A new tool for fighting cavities and gum disease?
Scientists have discovered that graphene oxide is effective at eliminating certain bacteria in the mouth, some of which have developed antibiotic resistance.
+
1:31 PM | Polymers designed for protection
Designing new polymers for superior protection capabilities by unraveling the complex relationship between polymer chemistry, microstructure and energy absorption.
+
1:20 PM | Sappi to Locate Nanocellulose Plant in The Netherlands
Sappi announced that it will build a pilot-scale plant for low-cost Cellulose NanoFibrils (nanocellulose) production at the Brightlands Chemelot Campus in Sittard-Geleen in the Netherlands. The pilot plant is expected to be operational within nine months.
+
10:03 AM | BASF Acquires Nanowire Technology From Seashell
BASF has acquired Seashell's technology, patents and know-how for silver nanowires. The acquisition extends BASF's portfolio of solutions offered to the display industry through the company's growing Electronic Materials unit.
+
9:52 AM | Theoretical physicists show topological states in multi-orbital ?HgTe honeycomb lattices
Scientists propose a design for robust topological insulators that combine the properties of the honeycomb lattice and strong spin?orbit coupling.
+
9:51 AM | Chemistry Bumper Cars: What's Up at UNIST?
UNIST Distinguished ProfessorBartosz GrzybowskiWe bloggers love to joke about the latest high-profile "poach" of a faculty member by prestigious universities. But what if the university in question has only existed for a handful of years?Such is the case with UNIST, the Ulsan National Institute of Science and Technology, which opened for business in 2009. Just a few hours' drive inland from the southeast coast of Korea, its shiny new research campus has attracted quite a few faculty […]
+
9:36 AM | Researchers identify process for improving durability of glass
New research results could lead to longer-lasting fiber optics, display screens and cement structures.
+
9:15 AM | Molecular Lego of nano-knots (w/video)
A virtual archive of building blocks to create nano-knots of all shapes and forms.

March 10, 2015

+
11:02 PM | “I think that most treatments of the transition state miss...
“I think that most treatments of the transition state miss the point. At first, proteins have nothing special in this context.” A new answer to my question on the Chemistry StackExchange forum: How can a protein folding transition state have zero lifetime? Glossary and further reading: Born-Oppenheimer approximation Copenhagen interpretation PES = Potential energy surface Variational Transition State Theory (1984) Annual Review of Physical Chemistry, 35: 159-189
+
8:55 PM | "NADINE NADINE I I I WE WE WE ARE WE ARE"
My all-time favorite post-Apocalypic novel.From John Carroll, editor-in-chief of Fierce Biotech, on the latest Shire and Pfizer layoff news:"Roche invited me down to Nutley a few years ago to talk to the research survivors about to make the transfer into Manhattan. Walking through the deserted campus, I thought it would make a great set for a post-Apocalypse movie. The empty buildings, abandoned parking lots and lonely sidewalks make for a dramatic setting. It's too bad they're still […]
+
7:11 PM | The Metal Reactivity Series
The metal reactivity series is a commonly taught concept in chemistry, placing the metals, as its name suggests, in order of reactivity from most reactive to least reactive. It’s also a useful tool in predicting the products of simple displacement reactions involving two different metals, as well as providing an insight into why different metals […]
+
5:48 PM | FDA adopts 3 standards focusing on nanotechnology
U.S. FDA adopted 3 nanotechnology standards as part of update to List of Recognized Standards.
+
5:43 PM | Graphene-coated nanowires eyed for computers, flexible displays
A new process for coating copper nanowires with graphene lowers resistance and heating, suggesting potential applications in computer chips and flexible displays.
+
5:03 PM | Researchers snap-shot fastest observations of superconductivity yet
An international team of researchers has used infinitely short light pulses to observe ultrafast changes in the electron-level properties of superconductors, setting a new standard for temporal resolution in the field.
+
4:59 PM | The chameleon reorganizes its nanocrystals to change colors
Many chameleons have the remarkable ability to exhibit complex and rapid color changes during social interactions. A collaboration of scientists unveils the mechanisms that regulate this phenomenon.
+
4:50 PM | 14th Ulm Electrochemical Talks
The Ulm Electrochemical Talks are held annually in Ulm, Germany. The 14th meeting, held from 23rd–26th June, 2014, focused on the topic of “Next Generation Electrochemical Energy Technologies”. Fuel cells and batteries are described as the dominant technologies to deliver the e-mobility vision within the next few decades. This selective review will focus on battery technologies and supercapacitors; although there was also plenty of material on the equally important topic of […]
5678910111213
455 Results