Plasmonic Core/Satellite Heterostructure with Hierarchical Nanogaps for Raman Spectroscopy Enhanced by Shell‐Isolated Nanoparticles
Source abstract
Abstract
A plasmonic core/satellite heterostructure is synthesized through an electrostatic self‐assembly protocol. The heterostructure comprises C‐coated Ag nanoparticles known as Ag@C shell‐isolated nanoparticles (SHINs) acting as satellite particles and a C‐coated Fe3O4 dielectric particle core (Fe3O4@C). The enhanced electromagnetic field generated from the hierarchical nanoscale gaps found among the particles makes high‐quality Raman spectra possible. As a result, shell‐isolated‐nanoparticle‐enhanced Raman spectroscopy (SHINERS) based on this heterostructure is successfully applied for in‐situ trace‐amount detection of perylene in water. There is potential for its use in ultrasensitive detection in the liquid phase with real‐time monitoring. This work offers a new strategy for developing SHINs to improve the performance of SHINERS.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced biosensing and bioanalysis techniques · Biosensors and Analytical Detection
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 P. R. China
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