RT Journal Article
T1 Polyamine ligand-mediated self-assembly of gold and silver nanoparticles into chainlike structures in aqueousSolution: towards new nanostructured chemosensors
A1 Fernández Lodeiro, Adrián
A1 Fernández Lodeiro, Javier
A1 Núñez, Cristina
A1 Bastida, Rufina
A1 Capelo, José Luis
A1 Lodeiro, Carlos
K1 1D nanochains
K1 Self-assembly
K1 Gold
K1 Mercury
K1 Nanoparticles
K1 Silver
AB Polyamine ligands are very versatile compounds due to their water solubility and flexibility. In the present work, we have exploited the binding ability of a polyamine molecular linker (L 2−) bearing different functional groups, which favors the self‐assembling of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) into 1D nanochains in aqueous solution. The chainlike assemblies of AuNPs and AgNPs were structurally stable for a long period of time, during which their characteristic optical properties remained unchanged. The mechanism of AuNPs and AgNPs chain assembly associated with the induction of electric dipole–dipole interactions arising from the partial ligand exchange of surface‐adsorbed citrate ions by (L 2−) was investigated. UV/Vis spectrophotometry and transmission electron microscopy (TEM) were used to determine timedependent structural changes associated with formation of the 1D nanoparticle structures. Finally, the sensing of Hg2+ in aqueous solution using AgNPs@(L )2− and AuNPs@(L )2− assemblies was also carried out in aqueous solution
PB Wiley
SN 2191-1363
YR 2013
FD 2013
LK http://hdl.handle.net/10347/22989
UL http://hdl.handle.net/10347/22989
LA eng
NO Fernández‐Lodeiro, A., Fernández‐Lodeiro, J., Núñez, C., Bastida, R., Capelo, J.L. and Lodeiro, C. (2013), Polyamine Ligand‐Mediated Self‐Assembly of Gold and Silver Nanoparticles into Chainlike Structures in Aqueous Solution: Towards New Nanostructured Chemosensors. ChemistryOpen, 2: 200-207. doi:10.1002/open.201300023
NO We are grateful to the Scientific Association ProteoMass (Portugal) for financial support. C.N. thanks Xunta de Galicia (Spain) for her postdoctoral contract (I2C program)
DS Minerva
RD 24 abr 2026