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October 27, 2010
Science & Technology
More Science Stories
October 24, 2011
Bryostatins Retain Promise
(October 24, 2011 | Vol. 89 Issue 43 | pp. 10-17)New results in total synthesis reinvigorate a 40-year-old field of research.
For Cave's Art, An Uncertain Future
(October 24, 2011 | Vol. 89 Issue 43 | pp. 38-40)Disagreement on conservation course of action complicates a potential reopening.
Cancer Stem Cells
(October 24, 2011 | Vol. 89 Issue 43 | pp. 41-43)Researchers zero in on the pathways that allow cancer to bounce back after treatment.
What's That Stuff? Blue Jeans
(October 24, 2011 | Vol. 89 Issue 43 | p. 44)Making the iconic pants requires both color-addition and color-removal chemistry.
Shedding Nanoparticles
(October 24, 2011 | Vol. 89 Issue 43 | p. 5)Materials Science: Chemists observe metal objects sloughing off ions to form nanoparticles.
Modifying Messenger RNA
(October 24, 2011 | Vol. 89 Issue 43 | p. 7)Chemical Biology: Methylated bases in mRNA may have roles in gene regulation and obesity.
Lab-On-A-Chip For Planets, Moons
(October 24, 2011 | Vol. 89 Issue 43 | p. 8)Microfluidics: Automated chip is designed to detect extraterrestrial amino acids.
New Editor For Analytical Chemistry
(October 24, 2011 | Vol. 89 Issue 43 | p. 9)Publishing: Jonathan Sweedler to take the helm.
Science & Technology Concentrates
(October 24, 2011 | Vol. 89 Issue 43 | p. 37)
October 17, 2011
Improving Shop Safety
(October 17, 2011 | Vol. 89 Issue 42 | pp. 56-57)Yale updates policies on machine shop use after student death.
Cleaning Acrylics
(October 17, 2011 | Vol. 89 Issue 42 | pp. 58-59)Conservation scientists seek new ways to keep modern paintings looking their best.
Detecting H2S In Vivo (Member Content)
(October 17, 2011 | Vol. 89 Issue 42 | p. 60)Studies could lead to sensitive and selective analyses for tiny signaling agent.
Rules For Design
(October 17, 2011 | Vol. 89 Issue 42 | p. 9)Materials Science: Guidelines predict structures formed by nanoparticles and DNA linkers.
Identifying Modified Cells
(October 17, 2011 | Vol. 89 Issue 42 | p. 11)Molecular Biology: Technique tags and enriches cells genetically altered by nucleases.
Linker-Free Molecular Wires
(October 17, 2011 | Vol. 89 Issue 42 | p. 12)Electronics: Metal-carbon bonds increase electrical conductance.
Asymmetry From A Guest
(October 17, 2011 | Vol. 89 Issue 42 | p. 13)Stereochemistry: Enzymelike pocket that hosts chiral species controls catalyst's enantioselectivity.
Science & Technology Concentrates
(October 17, 2011 | Vol. 89 Issue 42 | pp. 54-56)
C&EN called on chemistry shutterbugs to participate in its inaugural photo contest and readers responded enthusiastically, submitting nearly 250 images on all things chemical. Connected loosely by the broad theme "Your Science Up Close," the photos in this collection range from the macroscopic to the microscopic and from the everyday lab scene to the "that wasn't supposed to happen." Congratulations!
Second Place
Third Place
Honorable Mention
Honorable Mention
Click on the winning entries tab to view enlarged images
More Online
- Did C&EN choose your favorite photos?
View all of the contest entries at flickr.com/groups/cenews.
- Chemical & Engineering News
- ISSN 0009-2347
- Copyright © 2011 American Chemical Society
FIRST PLACE: That's Conical! - Jennifer S. Atchison
Drexel University materials science graduate student Jennifer S. Atchison made the silicon nanocones shown in this scanning electron microscope image by decomposing silane at high temperature in a chemical vapor deposition apparatus.
SECOND PLACE: Water Vortex - Robert L. D'Ordine
A magnetic stirrer, a beaker of water, and colored paper were all Robert L. D'Ordine, a biochemist in Ballwin, Mo., needed to capture this familiar laboratory phenomenon. "I would watch the vortex form as the stirrer sped up. Sometimes it was quite relaxing," D'Ordine says.
THIRD PLACE: Polychromatic - Ryan O'Donnell
As an undergraduate, Ryan O'Donnell, now at Johns Hopkins University, studied explosives with ion mobility spectrometry. The colorful birefringence pattern in this image comes from examining a micrometer-sized ammonium nitrate crystallite via cross-polarization light microscopy.
HONORABLE MENTION: Two Of A Kind - Marjorie S. Austero
Marjorie S. Austero (top), Keith Fahnestock (bottom)
In the Natural Polymers & Photonics Laboratory at Drexel University, researchers convert polysaccharides into nanofibers and thin films for use water purification and other applications. In Marjorie S. Austero's experiment, adding excess cross-linker to chitosan yielded the fine-fibered material seen in the colored SEM image (top). Keith J. Fahnestock's chitosan-electrospinning run (results shown at bottom) didn't go as planned. Rather than generating nanoscale fibers, the experiment produced micrometer-sized blobs. "In science, never cry over spilt milk. Take a picture of it instead," Fahnestock suggests.
HONORABLE MENTION: Chemistry Blues - Phil Squattrito
Looking at inorganic compounds doesn't usually put chemists in a musical kind of mood. But there can be exceptions. "Solid vanadyl sulfate is one of the bluest compounds I know," wails Philip J. Squattrito, a chemistry professor at Central Michigan University.
HONORABLE MENTION: Tiny Bubbles - Thomas Lazzara
Thomas Lazzara, a Ph.D. student at Georg August University's GÖttingen Institute for Organic & Biomolecular Chemistry in Germany, captured this image of vesicles fluorescently labeled with Texas Red and filled with sucrose as they sank to the bottom of a petri dish filled with a low-density buffer.
HONORABLE MENTION: Chemistry Thought Bubbles - Karen Chiang
Putting a literal twist on a comic strip illustrator's device, University of Rochester grad student Karen Chiang focused her thoughts on "Nontraditional Careers for Chemists" by Lisa M. Balbes by photographing the book cover through a bubble-filled glass of water.
- Chemical & Engineering News
- ISSN 0009-2347
- Copyright © 2011 American Chemical Society
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