Spatial Analysis of Metal-PLGA Hybrid Microstructures Using 3D SERS Imaging

Strozyk, Malte S, Jimenez de Aberasturi, Dorleta, Gregory, Jason V, Brust, Mathias ORCID: 0000-0001-6301-7123, Lahann, Joerg and Liz-Marzan, Luis M (2017) Spatial Analysis of Metal-PLGA Hybrid Microstructures Using 3D SERS Imaging. ADVANCED FUNCTIONAL MATERIALS, 27 (33). p. 1701626.

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Abstract

The incorporation of gold nanoparticles in biodegradable polymeric nanostructures with controlled shape and size is of interest toward different applications in nanomedicine. Properties of the polymer such as drug loading and antibody functionalization can be combined with the plasmonic properties of gold nanoparticles, to yield advanced hybrid materials. This study presents a new way to synthesize multicompartmental microgels, fibers, or cylinders, with embedded anisotropic gold nanoparticles. Gold nanoparticles dispersed in an organic solvent can be embedded within the poly(lactic‐co‐glycolic acid) (PLGA) matrix of polymeric microstructures, when prepared via electrohydrodynamic co‐jetting. Prior functionalization of the plasmonic nanoparticles with Raman active molecules allows for imaging of the nanocomposites by surface‐enhanced Raman scattering (SERS) microscopy, thereby revealing nanoparticle distribution and photostability. These exceptionally stable hybrid materials, when used in combination with 3D SERS microscopy, offer new opportunities for bioimaging, in particular when long‐term monitoring is required.

Item Type:	Article
Uncontrolled Keywords:	3D surface-enhanced Raman scattering imaging, gold nanostars, PLGA particles, SERS tags
Depositing User:	Symplectic Admin
Date Deposited:	17 Jul 2017 13:09
Last Modified:	19 Sep 2023 00:51
DOI:	10.1002/adfm.201701626
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3008513