World’S Smallest Thermometer Has Been Invented by Scientists from DNA [ Current Affairs ]


World’s Smallest (Nano) Thermometer has been invented by Scientists using DNA (Deoxyribonucleic acid) structures that can fold and unfold at specifically defined temperature functions. It was established by the scientists at the University of Montreal and in this regard the study report was published in the journal Nano Letters.

Key facts

  • The world’s smallest thermometer is 20, 000 times smaller than a human hair and is fully programmable.
  • It was established using basic idea of the DNA particles which unfold when animated to assured temperatures.
  • In the DNA fold and unfold RNA, proteins and other bio-molecules.
  • With this idea researchers bring about DNA structures that are able to fold and unfold at specific temperatures making it nano-scale temperature signaling device.


  • By enabling to measure temperature at the nanoscale it can help in understanding of natural and human designed nanotechnologies.
  • It has wide range of applications across fields of chemistry and physics and it can be combined in new electronic devices.
  • Play a crucial role in responding a number of dubious questions in the field of science and technology.
  • It can be used to create super-strong structures; darning cells and help nano-computing become more efficient.
  • Help in empathetic biological functions better and releases new boulevards in the evolving field of nanotechnology.

- Published on: May 4, 2016