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Keeping track of members of the US Congress is a good idea, but must be done with care. A science voting tally introduced by a group of eminent scientists does not fit the bill.
Channels that conduct anions or cations across cell membranes are of immense physiological importance. But what do they look like? A chloride channel turns out to have a double-barrelled structure quite unlike that of cation channels.
This installment looks at equipment such as dispersion technology for particle size measurement, a homologous time-resolved assay system for drug discovery, a carbon fibre potentiostat and a robotic perfusion system.
