Halloysite Nanotubes with Immobilized Plasmonic Nanoparticles for Biophotonic Applications

Halloysite nanotubes (HNTs) with immobilized gold (Au) and silver (Ag) nanoparticles (NPs) belong to a class of nanocomposite materials whose physical properties applications depend on the geometry arrangements plasmonic HNT’ surfaces. We explore HNTs:(Au, Ag)-NPs as potential nano-templates for surface-enhanced Raman scattering (SERS). The structure nanocomposites based HNTs Au- Ag-NPs are studied by means transmission electron microscopy optical spectroscopy. extinction spectra aqueous suspensions spatial distributions electric fields simulated, simulation results demonstrate corresponding localized resonances numerous “hot spots” field nearby those NPs. In vitro experiments reveal an enhancement protein SERS in fibroblast cells added HNTs:Ag-NPs. observed activity NPs promising their biosensorics biophotonics.