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Updated: Sep 20, 2025
Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating
Published on: February 20, 2016
Plasmonic behaviour of poly(2-ethyl-2-oxazoline)-coated gold nanoparticles for sensing and temperature-control
Oleg Yeshchenko1, Léa Daoud2, Pavlo Khort1
1Taras Shevchenko National University of Kyiv 60 Volodymyrska str. 01033 Kyiv Ukraine.
Abstract:
Gold nanoparticles functionalized with xanthate-poly(2-ethyl-2-oxazoline) (PEtOx-AuNPs) were investigated as thermoresponsive hybrid nanomaterials with tunable optical and thermal properties. The PEtOx-AuNPs exhibited changes in surface plasmon resonance (SPR) and amplified Surface-Enhanced Raman Scattering (SERS) signals during the reversible lower critical solution temperature (LCST) transition of the PEtOx ligand. The effect of the PEtOx coating on the photophysical properties of AuNPs, particularly on heat generation efficiency upon photoexcitation by Z-scan photothermal lens spectroscopy, was investigated. The results demonstrate the potential of PEtOx-AuNPs for applications in temperature-sensitive drug delivery, photothermal therapy, nanoscale heat generation, and photonic devices.
