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» Latest Science & Technology News
June 30, 2008
Battle Of The 'Functionals'
New tools fix many problems with density functional theory, but which one is best?
» Science & Technology Concentrates
June 30, 2008
Defeating Diarrhea — Forget chugging chalky Kaopectate when your next bout of diarrhea hits. A newly synthesized pyridopyrimidine derivative may one day be used to halt diarrhea caused by toxin-producing strains of the bacteria Escherichia coli.
Thick-Shelled Quantum Dots Blink Less — Fluctuations in the emission intensity of individual fluorophores, a phenomenon known as blinking, can be a problem when those fluorophores are used as labels in single-molecule experiments.
Designing With DNA Made Easy — DNA is more than just the basic building block of life.
Mass Spec Reveals NeuroAIDS-Related Metabolites — A mass spectrometry analysis of the cerebrospinal fluid (CSF) of macaques that are infected with simian immunodeficiency virus (SIV) and that develop neurological disorders has revealed clues about mechanisms of the nervous system diseases and could lead to new therapeutic treatments (J. Clin. Invest., DOI: 10.1172/JCI34138).
Vanadium-B-12 Bioconjugates Lower Blood Glucose — Nicola E. Brasch and Derek S. Damron of Kent State University and colleagues report the synthesis of the first vanadium-vitamin B-12 bioconjugates (Chem. Commun., DOI: 10.1039/b806598e).
Why Anesthetics Sometimes Cause Pain — General anesthetics are welcomed for their ability to banish pain during surgery, but some of these drugs increase postsurgical pain and inflammation.
Peptide Backbone's Folding Role — Modifying elements of a peptide's backbone yields nonnatural peptides that reproduce the three-dimensional structure of the original amino acid sequence, a strategy that could help in designing protein mimics (Proc. Natl. Acad. Sci. USA, DOI: 10.1073/pnas.0801135105).
Accelerated Electron Transfer Observed In Model Protein — In biological systems, electron flow often occurs very quickly between distant redox centers in electron-transfer proteins.
» Latest Science & Technology News
June 23, 2008
Electron Microscopy For Chemists
Advances in imaging and elemental analysis move TEM toward the realm of analytical chemistry. With Videos
A Fat Chance To Cure Cancer
Blocking fatty acid assembly is a potential strategy against disease.
Molecular Cage May Contain ... Nothing
Self-assembled prisms may enclose empty spaces rather than solvent. With Video
Inside Instrumentation
Technology and Business news for the laboratory world.
» Science & Technology Concentrates
June 23, 2008
One Pot, Six Chiral Centers — By using an amine-based catalyst, researchers at Aarhus University, in Denmark, have sculpted six chiral centers into a molecule in one fell swoop (Chem. Commun., DOI: 10.1039/b806418k).
Gravity-purified MOFs — Metal-organic frameworks (MOFs) can now be quickly and easily purified via a simple solvent-based method that takes advantage of minor density differences between the porous materials and any impurities.
Chaperonin's Iris-Like 'lid' — By twirling rather than flapping is how a "lid" on the barrel-shaped eukaryotic chaperonin called TRiC closes and opens when proteins enter or depart its interior (Nat. Struct. Mol. Biol., DOI: 10.1038/nsmb.1436).
Cantilever Array Weighs Single Cells — A new array of microfabricated silicon cantilevers gives researchers a way to track the growth of individual adherent cells (Lab Chip, DOI: 10.1039/b803601b).
Colorful Magnetic Resonance Imaging — Microengineered magnetic particles could bring color to traditionally gray-scale magnetic resonance imaging (MRI), U.S. government scientists report (Nature 2008, 453, 1058).
Light-Driven Pulleys Turn Plastic Motor — Tomiki Ikeda at the Tokyo Institute of Technology and colleagues have developed the first plastic motor powered only by light (Angew. Chem. Int. Ed. 2008, 47, 4986).
Five-Membered Chemical Combo Gels — A novel multicomponent combination of chemicals that causes organic solvents to irreversibly gel up may allow scientists to begin tuning or designing other similar mixtures (J. Am. Chem. Soc., DOI: 10.1021/ja8002777).
Nanotube Membranes Desalinate Water — Arrays of densely packed, vertically aligned carbon nanotubes can serve as membranes to filter ions out of water while allowing the water to flow significantly faster than through conventional filters.
» Nanofocus
Coverage of original content and collected nanotechnology news throughout the ACS.
June 23, 2008
Congress Addresses Nanotechnology
Bill reauthorizes federal initiative to monitor and guide R&D in emerging area.
June 23, 2008
Nanotube Membranes Desalinate Water
Arrays of densely packed, vertically aligned carbon nanotubes can serve as membranes to filter ions out of water.
June 23, 2008
Electron Microscopy For Chemists
Advances in imaging and elemental analysis move TEM toward the realm of analytical chemistry.
June 9, 2008
Nanoparticles Guide Protein Folding
Coated gold nanoparticles can help denatured proteins refold properly.
June 4, 2008
The twin toxics: nanotubes and asbestos
A new study shows that carbon nanotubes that look like asbestos can cause similar health effects.
June 2, 2008
Kavli Prize Winners
Nanoscience award recipients developed quantum dots, carbon nanotubes.
May 26, 2008
Nanotube Inflammation
Long, thin carbon structures exhibit asbestos-like pathogenicity in mice.
May 5, 2008
Nanoscience
A new twist on nanowire growth leads to stunning structures.
May 5, 2008
How to dissolve your carbon nanotubes
Although carbon nanotubes are generally regarded as insoluble in all solvents.
May 5, 2008
Souped-up nanomotors
Drop a bimetal nanowire, composed of a segment of gold and a segment of platinum, into a solution of aqueous hydrogen peroxide and the tiny rod will chug along at about 8 µm/second.
» Reel Science
» Reel Science reviews "I Am Legend"
Is Will Smith as a scientist in "I Am Legend" the world's last hope?
» What's That Stuff?
Amazed by amber? Inquisitive about ink? Wonder about whiskey? Uncover the chemistry behind everyday products.
What's New in 'What's That Stuff?'
Tattoo Ink
Adhesive Tape
Oil Paints
Chewing Gum
Sandpaper
Leather
Pool Chemicals
Amber
» Education
C&EN's coverage of the education of tomorrow's chemists.
September 3, 2007
- Introduction: Roads Less Taken — This year's education supplement sheds some light on the corners of education that haven't gotten much notice. Read more
- Fellows Are An Independent Lot — Non-tenure-track research positions offer alternative career paths Read more
- Wired For Learning — Teachers are tapping into youths' digital savvy to take science education into the future. Read more
- Community Launch Pads — Students find great value in low-cost, high-quality two-year colleges Read more
- Chemistry Olympians: Where are they now? — Former team members reflect on the olympiad's lasting impact on their education and careers Read more
» Critter Chemistry
Chemistry isn't confined to laboratories and classrooms. Nature is full of chemistry, too. "Critter Chemistry" demonstrates the active role chemistry takes in the animal kingdom. Some of the articles listed have previously run in Chemical & Engineering News, while other articles are exclusive to C&EN Online.
