Chemistry claim provokes strong reaction

Article Abstract:

An argument as to who should get the credit for a set of rules that help to predict the outcome of certain chemical reactions that include three chemists Roald Hoffmann, E.J. Corey and Robert Burns is presented. The pair worked on the syntheses of vitamin B12 to find out why the molecular geometry of some reaction products was the opposite of that predicted by theory.

United States, Molecular structure, Chemical reactions, Vitamin B12

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Hopping fences

Article Abstract:

A researcher, Akihiro Kusumi at a conference in Italy displayed a film on microsecond and on nanoscales, which depicted the movement of a protein in the lipid membrane of a living cell. However, the evaluation performed by him leads to a total hypothesis for cell membrane dynamics, which he has identified as 'hop diffusion'.

Italy, Japan, Usage, Observations, Proteins, Nanotechnology, Cell membranes, Kusumi, Akihiro

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The molecular wake-up call

Article Abstract:

A young Swedish pharmacologist Arvid Carlsson showed in 1957 that dopamine, the chemical manufactured from levodopa (L-dopa), acts as a neurotransmitter in the brain, passing signals between neighboring neurons. Carlsson won the Nobel Prize 40 years of the discovery of dopamine.

United Kingdom, Achievements and awards, Discovery and exploration, Dopamine, Nobel laureates, Neurotransmitters, Carlsson, Arvid

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