RT Journal Article
T1 Controlling Size and Morphology in Hybrid Core@Shell and Core@Shell@Satellite Nanostructures for Sensing by Surface-Enhanced Raman Scattering
A1 Alarcón-Fernández, Carlos
A1 Doña Flores, Manuel
A1 Tapia-Fernández, Antonio
A1 Villaverde Cantizano, Gonzalo
A1 López-Ramírez, María Rosa
A1 López-Moreno, Juan Manuel
A1 Contreras-Cáceres, Rafael
AB Here, we report the fabrication of several hybrid bimetallic core@shell and core@shell@satellite colloidal nanostructures. These nanosystems are structured as spherical and non-spherical metallic and bimetallic cores encapsulated by a thermo-responsive N-isopropylacrylamide (pNIPAM) shell (core@shell) with incorporated Ag satellites (core@shell@satellite). The metallic and bimetallic non-spherical cores include Au nanotriangles and bimetallic AuAg nanocubes, respectively. By using different amounts of AgNO3 during chemical reduction and through the seed-mediated approach, we are able to modify the Ag satellite sizes. We performed thermo-responsive surface-enhanced Raman spectroscopy (SERS) investigations for core@shell and core@shell@satellite nanosystems as a function of temperature, with improved SERS responses for the core@shell@satellite structure.
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/98464
UL https://hdl.handle.net/20.500.14352/98464
LA eng
NO Ministerio de Economía, Comercio y Empresa (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 22 may 2026