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Modular assembly of plasmonic core-satellite structures as highly brilliant SERS-encoded nanoparticles.

ABSTRACT: Herein, we present a fabrication approach that produces homogeneous core-satellite SERS encoded particles with minimal interparticle gaps (<2-3 nm) and maximum particle loading, while positioning the encoding agents at the gaps. Integration of plasmonic building blocks of different sizes, shapes, compositions, surface chemistries or encoding agents is achieved in a modular fashion with minimal modification of the general synthetic protocol. These materials present an outstanding optical performance with homogeneous enhancement factors over 4 orders of magnitude as compared with classical SERS encoded particles, which allows their use as single particle labels.

SUBMITTER: Pazos-Perez N

PROVIDER: S-EPMC9473162 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Modular assembly of plasmonic core-satellite structures as highly brilliant SERS-encoded nanoparticles.

Pazos-Perez Nicolas N Fitzgerald Jamie M JM Giannini Vincenzo V Guerrini Luca L Alvarez-Puebla Ramon A RA

Nanoscale advances 20181029 1

Herein, we present a fabrication approach that produces homogeneous core-satellite SERS encoded particles with minimal interparticle gaps (<2-3 nm) and maximum particle loading, while positioning the encoding agents at the gaps. Integration of plasmonic building blocks of different sizes, shapes, compositions, surface chemistries or encoding agents is achieved in a modular fashion with minimal modification of the general synthetic protocol. These materials present an outstanding optical performa ...[more]

PMID: 36132448

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