RT Journal Article
T1 Solid polymer and metallogel networks based on a fluorene derivative as fluorescent and colourimetric chemosensors for Hg(II)
A1 Pablos Lagartos, Jesús Luis
A1 Ibeas Cortés, Saturnino
A1 Muñoz Santamaría, María Asunción
A1 Serna Arenas, Felipe José
A1 García García, Félix Clemente
A1 García Pérez, José Miguel
AB This work describes two sensing systems for the detection and quantification of Hg(II): (a) a highly tractable solid polymer membrane, and (b) a gelling system based on a low molecular weight gelator. The preparation of both sensory systems relies on a polymerisable acrylic monomer derived from a fluorene core containing a functional hydroxyimino group, which at the same time is an organogelator with Hg(II)-triggered gelating properties in organic solution. The polymerisation of this monomer with commercial comonomers gave a cross-linked membrane or film, which permitted the detection of Hg(II) using UV/Vis and fluorescence techniques due to the colour and fluorescence changes in response to the interaction of the film with Hg(II). At the same time, organic solutions of the monomer – or gelator – gave a gel upon interacting with Hg(II). Engineering of the gel formation conditions permitted the tuning of the visual detection threshold of the concentration of Hg(II), which ranged from 6 × 10−3 to 1 × 10−2 M in our study, while the membrane permitted the detection by UV/Vis and fluorescence spectroscopy of Hg(II) in organic and organic/aqueous media in the millimolar–micromolar range. Furthermore, the colour and fluorescence changes of the two systems were clearly visible, allowing for the naked-eye detection and broad quantification of milli to micromolar concentrations of Hg(II).
SN 1381-5148
YR 2014
FD 2014-03-07
LK https://hdl.handle.net/20.500.14352/99157
UL https://hdl.handle.net/20.500.14352/99157
LA eng
NO Ministerio de Economía y Competitividad (España)
NO Consejeria de Educación (Junta de  Castilla y León)
DS Docta Complutense
RD 23 ene 2026