RT Journal Article
T1 Electronic structure, magnetic properties, and microstructural analysis of thiol-functionalized Au nanoparticles: role of chemical and structural parameters in the ferromagnetic behaviour
A1 Guerrero, Estefania
A1 Muñoz Márquez, Miguel
A1 Fernández Pinel, Enrique
A1 Crespo del Arco, Patricia
A1 Hernando Grande, Antonio
A1 Fernández, Asunción
AB Gold nanoparticles (NPs) have been stabilized with a variety of thiol-containing molecules in order to change their chemical and physical properties; among the possible capping systems, alkane chains with different lengths, a carboxylic acid and a thiol-containing biomolecule (tiopronin) have been selected as protecting shells for the synthesized NPs; the NPs solubility in water or organic solvents is determined by the protecting molecule. A full microstructural characterization of these NPs is presented in the current research work. It has been shown that NPs capped with alkanethiol chains have a marked ferromagnetic behaviour which might also be dependent on the chain length. The simultaneous presence of Au-Au and Au-S bonds together with a reduced particle diameter, and the formation of an ordered monolayer protective shell, have proved to be key parameters for the ferromagnetic-like behaviour exhibited by thiol-functionalized gold NPs.
PB Springer
SN 1388-0764
YR 2008
FD 2008
LK https://hdl.handle.net/20.500.14352/52004
UL https://hdl.handle.net/20.500.14352/52004
LA eng
NO ©Springer.We wish to acknowledge the support of the ESRF and BM29 beamline staff. Financial support from the Spanish MEC (NAN2004-09125-C07) and “Junta de Andalucía” (Project P06-FQM-02254, group TEP217) is also acknowledged. E. Guerrero thanks the Spanish MEC for financial support.
NO Spanish MEC
NO Junta de Andalucía
DS Docta Complutense
RD 18 abr 2025