Chemistry

Separation science has seen glamour and growth with ever-increasing demand for analysis ranging from environmental, toxicological to forensics. The list is endless and the genre is getting narrower for the graduates. Considering these points, eminent professors and research scientists have rolled out a wonderful interface for evolving pedagogy.      
separationsNOW marks and celebrates chromatography education through webinar series, " Year of Education in Separation Science."
It is fascinating and interesting interface to ask generic to advanced questions. I was intrigued by the idea and would love my graduate class to learn afresh. I would love to challenge the age-old universal method of teaching.
That's right, my love for the periodic table can now be extended to my phone! My sweet Palm Pre features the periodic table in its app catalog, with such data as:






  • Oxidation Status




  • Boiling Point




  • Melting Point




  • Electron Configuration




  • Electron Negativity




  • Atomic Radius




  • Atomic Volume




  • Specific Heat Capacity




  • Ionization Potential




  • Atomic Number




  • Symbol




  • Name


When Dmitri Mendeleev first published his table of elements in 1869 (picture), only 60 of these were known. One group in particular was absent, namely the inert gases.  Now you may have heard this song:

"All these gases are inert
  Helium, neon, argon.
I’ll sing this song until it hurts
  Krypton, xenon, radon." **
Scientists say they can now tell the condition of an old book by its odor. In a report published in Analytical Chemistry, a team of researchers describe development of a new test that can measure the degradation of old books and precious historical documents on the basis of their aroma. The non-destructive "sniff" test could help libraries and museums preserve a range of prized paper-based objects, some of which are degrading rapidly due to advancing age, the scientists say.

The new technique — an approach called "material degradomics" — analyzes the gases emitted by old books and documents without altering the documents themselves. The scientists used it to "sniff" 72 historical papers from the 19th and 20th centuries.
Did someone mention Elvis? This research made the cover of ACS's Journal of Physical Chemistry in color. 
 
All you need is a pic-a-nic basket and wine in Erlenmeyer flasks.

Sustainability stretches through greener chemistry. Imagine having a choice in designing environmentally friendly materials. This opportunity is presented in "Identifying the Molecular Origin of Global Warming" scheduled for the November 12's ACS Journal of Physical Chemistry. The approach taken by Partha Bera et al. seeks to explain how fundamental properties influence molecular absorption in the atmospheric window. What are the major factors that make some molecules more effective greenhouse gases (GHGs)?


 

The periodic table has been covered in myriad ways on this site1, but no one has addressed the re-setting of the venerable Table. I was reminded of this slightly consternating activity this morning while reading Technology Review's arXiv physics blog on a new graphical representation of the Periodic Table.2

I like the flat, 2D familiar table. Nostalgia and comfort likely play a role in that. So I don't know how I feel about the newly shaped tables out there.
Soon the world will learn who won the 2009 Nobel Prize in chemistry. Do you remember Peter Agre and Roderick MacKinnon of the following announcement?

The Nobel Prize in Chemistry 2003

The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Chemistry for 2003 “for discoveries concerning channels in cell membranes”, with one half of the prize to
Peter Agre
Johns Hopkins University School of Medicine, Baltimore, USA
“for the discovery of water channels”
and one half of the prize to
Roderick MacKinnon
Howard Hughes Medical Institute, The Rockefeller University, New York, USA
“for structural and mechanistic studies of ion channels”. [1]

Two Cell Membrane Channels