TY - JOUR A1 - Filipczak, Paulina A1 - Hałagan, Krzysztof A1 - Ulański, Jacek A1 - Kozanecki, Marcin T1 - Surface-enhanced Raman scattering of water in aqueous dispersions of silver nanoparticles JF - Beilstein Journal of Nanotechnology PY - 2021/// VL - 12 SP - 497 EP - 506 SN - 2190-4286 DO - 10.3762/bjnano.12.40 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.12.40 KW - Dynamic lattice liquid (DLL) simulations KW - liquid water KW - plasmons KW - resonance Raman effect KW - surface-enhanced Raman scattering KW - water structure N2 - The resonance Raman effect (RRE) is a phenomenon which results in a strong selective enhancement of Raman signals from the samples. Previous studies showed that the RRE in liquid water directly corresponds to its supramolecular structure. It was also reported that the electric-field-induced orientation of water molecules on the electrode surface results in the surface-enhanced Raman scattering (SERS) effect. In this work, we show the SERS effect for water molecules in the dispersion of silver nanoparticles (AgNPs) without any external electrical field. An enhancement factor was estimated to be (4.8 ± 0.8) × 106 for an excitation wavelength of 514.5 nm and for AgNPs with an average size of 34 ± 14 nm. The temperature experiment results showed a higher enhancement with temperature increase. Performed simulation studies revealed a slowdown of the mobility of the water molecules close to the surface of AgNPs. ER -