Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-47126 Zeitschriftenartikel Climent Terol, Estela; Hecht, Mandy; Witthuhn, Heike; Gawlitza, Kornelia; Rurack, Knut Cover profile for the article "Mix-&-read determination of Mercury(II) at trace levels with hybrid mesoporous silica materials incorporating fluorescent probes by a simple mix-&-load technique" 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 fuer Materialforschung und -pruefung (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 HgII 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 HgII detection through enhanced fluorescence in a few seconds. The applicability in real water samples and fish extracts are also studied. Weinheim Wiley-VCH 2018 ChemistryOpen 7 12 932 933 urn:nbn:de:kobv:b43-471267 10.1002/open.201800231 https://creativecommons.org/licenses/by-nc-nd/4.0/deed.de 2019-01-02 OPUS4-46013 Zeitschriftenartikel Climent Terol, Estela; Hecht, Mandy; Witthuhn, Heike; Gawlitza, Kornelia; Rurack, Knut Mix-&-read determination of Mercury(II) at trace levels with hybrid mesoporous silica materials incorporating fluorescent probes by a simple mix-&-load technique The synthesis, characterization, and application of mesoporous materials containing boron-dipyrromethene (BODIPY) moieties that allow the sensitive and selective detection of HgII in aqueous environments by fluorescence enhancement is reported. For this purpose, BODIPY dye I containing a thia-aza crown ether receptor as the fluorescent probe for the detection of HgII in aqueous environments is encapsulated into mesoporous materials to avoid self-quenching or aggregation in water. Determination of HgII is accomplished within a few seconds with high selectivity and sensitivity, reaching a limit of detection of 12 ppt. The determination of trace amounts of HgII in natural waters and in fish extracts is demonstrated by using our sensing material. The incorporation of the material into several μ-PAD strips yields a portable, cheap, quick, and easy-to-handle tool for trace HgII analysis in water. Weinheim Wiley-VCH 2018 ChemistryOpen 7 12 957 968 urn:nbn:de:kobv:b43-460138 10.1002/open.201800277 https://creativecommons.org/licenses/by-nc-nd/4.0/deed.de 2018-09-21