features – Page 23
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FeatureFrom LCDs to medical materials
A green technology can be used to extract valuable chemicals and the recovered low-value plastic can be turned into higher-value materials for new and important applications
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FeatureThe curious story of toxic ice
In 1944 a fake article was submitted and published as a scientific paper. In the context of How Science Works, can a hoax have educational value?
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FeatureTwo-step bromine attack
An experiment for the classroom to show that bromine adds to an alkene by two-step electrophilic addition
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FeatureIron ocean seeding
Carbon sequestration - the removal of carbon dioxide from the atmosphere - is an active area of research
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FeatureLead in the environment
Interest in lead pollution has tended to focus on the environmental consequences of the use of tetraethyl lead in petrol and of lead compounds in paint
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FeatureSingle molecule sequencing
The first draft sequence of the human genome, announced 10 years ago, was time-consuming and expensive
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FeatureThe importance of weak forces
London dispersion forces - instantaneous dipole-induced dipole attractions - are extremely short ranged
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FeatureThe medicinal history of phosphorus
In the early Middle Ages 'physicians' treated most illnesses ineffectually, with herbs and plant extracts
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FeatureBlack paper
Flexible carbon nanotube paper is now available for use in high-tech electronics
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FeatureHave your coal and burn it
Carbon capture and storage (CCS) has the potential to reduce carbon emissions and allow us to continue using fossil fuels to generate electricity
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FeatureLook who discovered caesium...
Although Robert Bunsen and Gustav Kirchhoff are often credited with the discovery of caesium, this honour belongs to Carl Setterberg
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FeatureMaking the most of valency
Teachers are encouraged to use valency as a way of rationalising the atomic composition of a large number of compounds
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FeatureMass spectrometry - the early days
1912, physicist Joseph John (J. J.) Thomson discovers mass spectrometry
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FeatureModern mass spectrometry
Advances in mass spectrometry (MS) technology over the past 30 years have pushed this technique into the hands of biologists and biochemists
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FeatureSynthetic vaccines
The design of synthetic vaccines offers a more systematic approach to vaccine therapy for many illnesses, including cancer, and even drug addiction
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FeatureA blockbuster synthesis for undergraduates
By investigating the synthesis of a major antiulcer drug, undergraduates get an insight into the challenges of modern process chemistry
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FeatureA problem shared - the Singapore experience
Problem-based learning (PBL) gives students opportunities for collaborative as well as self-directed learning
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FeatureFive rings good, four rings bad
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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