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Device to diagnose dengue within an hour

Topics Covered: Achievements of Indians in science & technology; indigenization of technology and developing new technology.

Device to diagnose dengue within an hour:


Researchers at the Indian Institute of Technology Delhi have developed a handheld Surface Enhanced Raman Spectroscopy (SERS)-based platform for early diagnosis of dengue and also gives dengue test results within one hour (rapid diagnosis).

  • The research work was funded by IMPRINT India programme of the Ministry of Education.

Need for early diagnosis:

Early diagnosis of dengue is the key to prevent deterioration of a patient’s health. However, conventional diagnostic tools like nucleic acid detection using Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) is a time-taking process and it also requires expensive equipment and reagents for the diagnosis of dengue.

What is SERS?

It is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces or by nanostructures such as plasmonic-magnetic silica nanotubes.


Prelims Link:

  1. About CV Raman and his key contributions.
  2. What is Raman effect?
  3. What is SERS?
  4. Difference between Rayleigh scattering and Raman scattering.
  5. What is Raman Spectroscopy?
  6. About IMPRINT India Programme.

Mains Link:

Write a note on Raman Spectroscopy.

Sources: the Hindu.