Mix-&-Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix-&-Load Technique

Estela Climent; Mandy Hecht; Heike Witthuhn; Kornelia Gawlitza; Knut Rurack

doi:10.1002/open.201800231

Mix-&-Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix-&-Load Technique

ChemistryOpen. 2018 Dec 3;7(12):933. doi: 10.1002/open.201800231. eCollection 2018 Dec.

Authors

Estela Climent¹, Mandy Hecht^{1

2}, Heike Witthuhn¹, Kornelia Gawlitza¹, Knut Rurack¹

Affiliations

¹ Department of Analytical Chemistry; Reference Materials Bundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Str. 11 12489 Berlin Germany.
² Current address: CodeCheck GmbH Gneisenaustraße 115 10961 Berlin Germany.

Abstract

Invited for this month's cover picture is the group of Dr. Knut Rurack at the Department of Analytical Chemistry; Reference Materials at the Bundesanstalt für Materialforschung und -prüfung (BAM) in Berlin (Germany). The cover picture shows how differences in color and fluorescence on a test strip can be easily read out with a mobile device. Two reference spots frame the sensitive spot that indicates the presence of trace amounts of Hg^II below the threshold in a natural water sample. This dipstick contains a hybrid material that combines boron-dipyrromethene (BODIPY) probes sterically loaded into specifically tailored mesoporous silica particles, allowing for ultrasensitive Hg^II detection through enhanced fluorescence in a few seconds. The applicability in real water samples and fish extracts are also studied. Read the full text of their Full Paper at https://doi.org/10.1002/open.201800111.