In:
Journal of the Brazilian Chemical Society, Sociedade Brasileira de Quimica (SBQ), ( 2021)
Kurzfassung:
A new quenching fluorescence sensor (MDP) with high productivity was easily synthesized from a [5]helicene anhydride derivative and propargyl bromide. This MDP sensor has significant photophysical properties, including high fluorescence emission and a large Stokes shift, and it exhibits selectivity and an excellent detection response in distinguishing Au3+ ions from interfering metal ions in aqueous solution. The limit of detection of the sensor were determined to be 0.16 µmol L-1 or 32.0 ppb. Stoichiometric binding between the MDP and Au3+ ions was found to occur at a 1:2 ratio. Additionally, the MDP sensor shows an ability to detect gold ions in real water samples and recognize gold nanoparticles (AuNPs), which invites its further application in biological and environmental systems.
Materialart:
Online-Ressource
ISSN:
0103-5053
,
1678-4790
DOI:
10.21577/0103-5053.20200236
Sprache:
Unbekannt
Verlag:
Sociedade Brasileira de Quimica (SBQ)
Publikationsdatum:
2021
ZDB Id:
2028738-0
Permalink