More features – Page 22
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FeatureThe natural food dye revolution
As consumers turn their backs on artificial food colorants, food scientists learn how to work with natural alternatives. Sarah Houlton investigates
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FeatureBones of contention
Can protein in dinosaur bones survive for millions of years? Rachel Brazil explores the evidence
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FeatureThe bonds that bind
Mike Sutton plots the journey of the scientists who solved the riddle of chemical bonding
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FeatureSers and the rise of the Raman empire
Dermot Martin looks at how Sers was invented and how it is expanding its sphere of influence
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FeatureGoing for gold
Nina Notman looks at attempts to reduce the environmental impacts of small-scale gold mining
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FeatureWell-tempered chocolate
Nina Notman discovers that controlling crystal structures and emulsions is the key to good chocolate
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FeatureDating the age of humans
Physical science is helping archaeologists close in on the real answers behind the mysteries of human evolution, finds Ida Emilie Steinmark
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FeatureMolecule-making microbes
Extracting terpene drugs from plants is difficult and wasteful, so pharma companies are looking to biosynthesis, as Emiliano Feresin discovers
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FeatureThe dream of zeolite design
Zeolites are important industrial catalysts, so why can’t chemists make them to order? Andrew Turley finds out
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FeatureThe origin of homochirality
Why do so many biological molecules exist in just one chirality – and how did it emerge? Rachel Brazil reflects on life’s strange asymmetry
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FeatureThe house that DNA built
The 2015 chemistry Nobel prize was awarded to Tomas Lindahl, Paul Modrich and Aziz Sancar for DNA repair. Matthew Gunther reconstructs their story
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FeatureSnakes, sausages and structural formulae
Mike Sutton tells the story of how August Kekulé dreamt up the structure of benzene
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FeatureNavigating chemical space
Fully exploring the ocean of possible compounds – even computationally – is impossible, finds Philip Ball
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FeatureA new hope in HIV prevention
New microbicide products could turn the tide against Aids for women in Africa, reports Dinsa Sachan
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FeatureOligonucleotide drugs step up
Structural innovations are overcoming oligonucleotide drugs’ historical flaws, discovers Andy Extance
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FeatureThe birth of something small
Len Fisher gives a personal account of how colloid science evolved into nanoscience