Surface-Enhanced Raman Spectroscopy

15.01.2025

Surface-Enhanced Raman Spectroscopy

Why in the news?                        

Recently, researchers have developed an efficient nano catalyst which can be used in environmental remediation, nanoscale electronics, and surface-enhanced Raman spectroscopy (SERS).

About Surface-Enhanced Raman Spectroscopy:

• Surface-enhanced Raman spectroscopy or surface-enhanced Raman scattering (SERS) is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces.
• It enhances the Raman scattering signals of molecules close to nanostructured metallic surfaces, typically gold or silver.
• It provides the same information that normal Raman spectroscopy does, but with a greatly enhanced signal.
• Applications: It has become a powerful tool in chemical, material and life sciences, owing to its intrinsic features.

What is Raman spectroscopy?

• It is a spectroscopic technique used in condensed matter physics and chemistry to study vibrational, rotational, and other low-frequency modes in a system.
• It depends on the inelastic scattering, or Raman scattering of monochromatic light, usually from a laser in the visible, near-infrared or near-ultraviolet range of electromagnetic spectra.
• It was discovered by the famous Indian physicist C V Raman in 1928.

                                                                     Source: PIB

Consider the following statements regarding Surface-Enhanced Raman Spectroscopy:

1. It is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces.

2. It is used for material and life sciences because of its intrinsic features.

Which of the statements given above is/are correct?

A.1 only

B.2 only

C.Both 1 and 2

D.Neither 1 nor 2

Answer C