A pill on a string!
b'About 8000 people in the UK develop a cancer in their oesophagus - the tube that connects the back of the throat to the stomach - every year. The majority of these people have detectable changes in the cells lining the oesophagus for many years before they develop the cancer. These changes are referred to as Barrett\'s oesophagus. But only a minority of people with Barrett\'s - which is actually relatively common - will actually go on to develop cancer, which makes screening for the disease an expensive headache. Now Rebecca Fitzgerald, a physician from Cambridge, has developed a sponge - packed... Like this podcast? Please help us by supporting the Naked Scientists'