World/s thinnest and smallest thermometer created
Q. Scientists have created the world’s tiniest thermometer how many times smaller than a human hair?- Published on 28 Apr 16a. 20,000
b. 25,000
c. 30,000
d. 35,000
ANSWER: 20,000
Scientists have created the world’s tiniest thermometer that is 20,000 times smaller than a human hair, using DNA structures that can fold and unfold at specifically defined temperatures.
- “Inspired by those natural nanothermometers, which are typically 20,000 times smaller than a human hair, we have created various DNA structures that can fold and unfold at specifically defined temperatures,” said the scientists
- One of the main advantages of using DNA to engineer molecular thermometers is that DNA chemistry is relatively simple and programmable.
- DNA is made from four different monomer molecules called nucleotides - nucleotide A binds weakly to nucleotide T, whereas nucleotide C binds strongly to nucleotide G and scientists created DNA structures that fold and unfold at a specifically desired temperature
