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Updated: Apr 5, 2026

Author Spotlight: Advancements and Applications in Nanoparticle Synthesis Through Laser Ablation in Liquids

Author Spotlight: Advancements and Applications in Nanoparticle Synthesis Through Laser Ablation in Liquids

Published on: June 16, 2023

New Nano Architecture for SERS Applications.

Gayatri Kumari¹, Chandrabhas Narayana¹

¹Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064, India.

The Journal of Physical Chemistry Letters

|August 20, 2015

Summary

This summary is machine-generated.

Silver silica gold sandwich nanoparticles were created using a seeded growth method. These novel nanoparticles demonstrate a significant surface-enhanced Raman scattering (SERS) enhancement of approximately 10^6.

Keywords:

SERS core shell plasmons sandwich nanoparticles

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Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Published on: March 20, 2015

Area of Science:

Nanotechnology
Materials Science
Spectroscopy

Background:

Surface-enhanced Raman scattering (SERS) is a powerful technique for detecting molecules at low concentrations.
Developing novel nanostructures is crucial for enhancing SERS efficiency.

Purpose of the Study:

To synthesize and characterize silver silica gold sandwich nanoparticles.
To investigate the SERS performance of these novel nanostructures.

Main Methods:

Multistep seeded growth process for nanoparticle synthesis.
Characterization using UV-vis spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction (XRD).
Evaluation of SERS enhancement factor under identical experimental conditions.

Main Results:

Successful synthesis of silver silica gold sandwich nanoparticles.
Demonstrated light amplification through multiple reflections within the nanoparticle structure.
Achieved a SERS enhancement factor of approximately 10^6.
Observed a 6-fold greater enhancement compared to nanoparticles lacking a silver core.

Conclusions:

Silver silica gold sandwich nanoparticles exhibit superior SERS performance.
The unique structure facilitates efficient light interaction and amplification.
These nanoparticles hold promise for advanced sensing applications.