Dysprosium sensor

P. Daneshgar, P. Norouzi, A.A. Moosavi-Movahedi, M.R. Ganjali, E. Haghshenas, F. Dousty, M. Farhadi, Fabrication of carbon nanotube and dysprosium nanowire modified electrodes as a sensor for determination of curcumin, J. Appl. Electrochem. 39 (2009) 1983—1992. 

In 2009, Ganjali etal. reported an optical sensor for the Dy ion that is based on A -[(2-hydroxyphenyl)-methylenejbenzohydrazide, 29. This receptor was immobilized on a triacetylcellulose membrane to create an optical sensor that displayed both high selectivity and sensitivity toward the dysprosium ion. While a DL of 35 J,M was achieved, this system was plagued by a narrow effective pH range (3.0-5.0) and a long response time (50 s). ... 

Lanthanides present another group of luminescent materials suitable for sensors. Dysprosium and samarium pyridinedicarboxylates prepared by hydrothermal synthesis [233] exhibited a set of 3 emission bands assigned to different transitions of Dy and Sm with maxima ranging from 480 to 623 nm for Dy and 560 to 710nm for Sm. The conclusion has been drawn that the energy transfer from the organic ligand to the lanthanide ion is effective. 

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