abstract
Inorganic nanoparticles (NPs) have emerged in the last decades as key materials for a number of technologies. In particular, noble metal (Ag, Au) and iron oxide NPs have revealed important applications due to their plasmonic and magnetic properties, respectively. Among these applications, this review provides, on one hand, an overview on the use of colloidal metal NPs in surface enhanced Raman scattering (SERS) chemical analysis and, on the other hand, the application of iron oxides as a new class of nanosorbents for water pollutants. These distinct types of NPs are the main building blocks to produce magneto-plasmonic nanostructures, that comprise both functionalities, and whose morphologies and surface functionalities are controlled using chemical methodologies. Thus, this review presents an overall picture of these hybrid nanostructures that, albeit less explored than the corresponding single phased materials, show an enormous potential for fundamental and applied studies. In particular, there will be a focus on important aspects for the application of magneto-plasmonic nanostructures in water analysis.
keywords
SURFACE-ENHANCED RAMAN; HEAVY-METAL IONS; SIZE-CONTROLLED SYNTHESIS; IRON-OXIDE NANOCRYSTALS; ONE-POT SYNTHESIS; GOLD NANOPARTICLES; AQUEOUS-SOLUTION; SCATTERING SERS; HOT-SPOTS; SINGLE-MOLECULE
subject category
Chemistry
authors
Pinheiro, PC; Daniel-da-Silva, AL; Nogueira, HIS; Trindade, T
our authors
Ana Luísa Daniel da Silva
Principal Researcher
Helena Isabel Seguro Nogueira
Assistant Professor with Aggregation
Paula Pinheiro
Research Fellowship
Tito Trindade
Full professoracknowledgements
P. C. Pinheiro is grateful to Fundacao para a Ciencia e Tecnologia (FCT) for her PhD grant SFRH/BD/96731/2013. A. L. D.-d.-Silva acknowledges FCT for the research contract under the Program "Investigador FCT" 2014. This work was developed in the scope of the project CICECO-Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (Ref. UID/CTM/50011/2013), financed by national funds through the FCT/Ministerio de Educacion y Ciencia (MEC), and when appropriate co-funded by the European Regional Development Fund (FEDER) under the PT2020 Partnership Agreement.