Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
A BODIPY based highly selective fluorescence turn-on sensor toward VIB and IIB metal ions
Ist Teil von
Molecular Crystals and Liquid Crystals, 2016-09, Vol.636 (1), p.159-167
Ort / Verlag
Philadelphia: Taylor & Francis
Erscheinungsjahr
2016
Quelle
Duke University Press journals
Beschreibungen/Notizen
A probe for recognition of IIB (Zn
2+
, Cd
2+
, and Hg
2+
) and VIB (Cr
3+
) was developed based on the framework of BODIPY. The probe was synthesized by attaching DPA to 4-position of BODIPY. It exhibited excellent sensitivity and selectivity function for the IIB and VIB metal ions with 1:1 stoichiometry in acetonitrile solution. The limit of detection of Zn
2+
, Cd
2+
, Hg
2+
, and Cr
3+
were obtained by fluorescence "turn-on" and ranged from 20.6 to 23.1 nM. Other metal cations did not interfere with the emission sensing of Zn
2+
, Cd
2+
, Hg
2+
, and Cr
3+
. The underlying mechanism of fluorescence "turn-on" is based on the intramolecular PET, which controlled the fluorescence "on" or "off."