All Biology articles – Page 9

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    On This Day - Apr 24 : Roger Kornberg was born

    He was awarded the Nobel Prize in Chemistry in 2006 for his “studies of the molecular basis of eukaryotic transcription” – the process where genetic information is copied from DNA to RNA.

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    On This Day - Apr 21: Paul Karrer was born

    Karrer was awarded half the Nobel Prize in Chemistry in 1937 for his research into plant pigments, namely yellow carotenoids, flavins, and vitamins A, B2 and E.

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    On This Day – Jul 19 : Pelletier died

    He was one of the pioneers of the study of plant alkaloid chemistry. Alkaloids are organic compounds that induce various effects in medicine, including painkillers and respiratory stimulants. Pelletier and his colleagues first isolated the pigment chlorophyll in 1817.

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    On This Day - Oct 15 : First contraceptive pill

    The pill was a steroid hormone, norethindrone, developed by Carl Djerassi and co-workers at Syntex in Mexico City. Around 100 million women worldwide now take contraceptive pills, which are approximately 99% effective against pregnancy.

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    On This Day - Oct 12 : Iron lung respirator

    An iron lung is a cylindrical container, encasing a person’s entire body apart from the head. It regulates air pressure to help a person breathe, and was first used to save the life of a young girl with polio.

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    On This Day - Jan 08 : Melvin Calvin died

    He was awarded the 1961 Nobel Prize in Chemistry for his discovery of the Calvin cycle. The Calvin cycle is a series of reactions that describe carbon (C) fixing in plants. Related resources:  Photosynthesis Carbon - Element information

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    Rise of molecular machines

    2012-09-01T00:00:00Z

    Chemists are putting molecules to work in ways only limited by our imagination

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    Toxic amino acids

    2012-07-01T00:00:00Z

    Simon Cotton takes a look at those compounds that find themselves in the news or relate to our everyday lives.

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    The Mole

    Nicola Gray: Assistant analyst

    2012-05-01T13:34:00Z

    Nicola is a PhD student from the Drug Control Centre at King’s College London. She will play an important role during the London 2012 Olympic and Paralympic Games this year

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    Animal games – scales of nature

    2012-05-01T09:21:00Z

    On screen chemistry with Jonathan Hare

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    What's in your strawberries?

    2012-05-01T00:00:00Z

    Why are strawberries so irresistible? Do the strawberries you pick in the wild really taste nicer than shop-bought ones?

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    The Mole

    Shining light on artificial photosynthesis

    2012-03-01T10:26:00Z

    Mimicking plant life could be our way out of the energy crisis. Anna Lewcock talks to Tony Harriman to find out more

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    Vancomycin

    2012-03-01T00:00:00Z

    Simon Cotton takes a look at those compounds that find themselves in the news or relate to our everyday lives.

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    Nitrous oxide: are you having a laugh?

    2012-03-01T00:00:00Z

    Since its discovery, laughing gas has played its part in our dental surgeries, operating theatres and - more controversially - at our parties

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    Ruthenium compounds as anticancer agents

    2012-01-01T00:00:00Z

    New ruthenium-based compounds with fewer and less severe side effects, could replace longstanding platinum-based anticancer drugs

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    Molybdenum and evolution

    2011-09-01T00:00:00Z

    Recent discoveries indicate that our atmosphere was not always oxygen rich - molybdenum could have been the limiting factor in the evolution of life on earth

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    Really cheesy chemistry

    2011-01-01T00:00:00Z

    Stilton, camembert, limburger and cheddar - why, and how, does cheese come in such a variety of smells and tastes?

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    Iron ocean seeding

    2010-09-01T00:00:00Z

    Carbon sequestration - the removal of carbon dioxide from the atmosphere - is an active area of research

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    Five rings good, four rings bad

    2010-03-01T00:00:00Z

    Fifty years ago steroid abuse among sportsmen and women was a serious problem. Today, thanks to the skills of analytical chemists, the sporting cheats rarely win

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    The Mole

    Ethanol

    2010-01-01T14:57:00Z

    That’s chemistry: The science behind alcohol