DNA used in a thermometer.
A thermometer 20,000-times smaller than a human hair has been developed by researchers using DNA that is capable of measuring temperatures within living cells.
The thermometer, unveiled this week in the journal Nano Letters, was built by scientists at the University of Montreal and is expected to improve human understanding of nanotechnologies.
DNA is made up of four different molecules: Nucleotide adenine (A), nucleotide thymine (T), nucleotide cytosine © and nucleotide guanine (G). Nucleotides A and T bind weakly together, whereas nucleotides C and G bind strongly together.
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