A Lanthanide-Based Chemosensor for Bioavailable Fe3+ Using a Fluorescent Siderophore: An Assay Displacement Approach

被引：42

作者：

Orcutt, Karen M. ^{[1
]}

Jones, W. Scott ^{[2
]}

McDonald, Andrea ^{[2
]}

Schrock, David ^{[2
]}

Wallace, Karl J. ^{[2
]}

机构：

[1] Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA

[2] Univ So Mississippi, Dept Chem & Biochem, Hattiesburg, MS 39406 USA

来源：

SENSORS | 2010年 / 10卷 / 02期

基金：

美国国家科学基金会;

关键词：

lanthanide; desferrioxamine; siderophore; iron; chemosensor; indicator displacement assay; MOLECULAR RECOGNITION; HIGHLY LUMINESCENT; IRON AVAILABILITY; COMPLEXES; PHYTOPLANKTON; SYNECHOCOCCUS; BIOREPORTER; SENSORS; FIELD;

D O I：

10.3390/s100201326

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The measurement of trace analytes in aqueous systems has become increasingly important for understanding ocean primary productivity. In oceanography, iron (Fe) is a key element in regulating ocean productivity, microplankton assemblages and has been identified as a causative element in the development of some harmful algal blooms. The chemosenor developed in this study is based on an indicator displacement approach that utilizes time-resolved fluorescence and fluorescence resonance energy transfer as the sensing mechanism to achieve detection of Fe3+ ions as low as 5 nM. This novel approach holds promise for the development of photoactive chemosensors for ocean deployment.

引用

页码：1326 / 1337

页数：12

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