Europium-doped GdVO₄ nanocrystals as a luminescent probe for hydrogen peroxide and for enzymatic sensing of glucose

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• 作者：Verena Muhr^a ; ¹Author Vitae ; Markus Buchner^a ; ¹Author Vitae ; Thomas Hirsch^aAuthor Vitae ; Dragana J. Jovanović^bAuthor Vitae ; Slobodan D. Dolić^bAuthor Vitae ; Miroslav D. Dramićanin^b ; ^{dramican@vin.bg.ac.rs}Author Vitae ; Otto S. Wolfbeis^a ; ^{otto.wolfbeis@ur.de}Author Vitae
• 关键词：Nanoprobe ; Luminescent probe ; Nanomaterial ; Lanthanide nanoparticle ; Hydrogen peroxide ; Transmission electron microscopy ; DLS ; Zeta potential ; Quantum yield ; Quenching ; Stern-Volmer plot ; Glucose oxidase ; Enzymatic assay
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：31 March 2017
• 年：2017
• 卷：241
• 期：Complete
• 页码：349-356
• 全文大小：1927 K
• 卷排序：241

文摘

Synthesis of fluorescent nanocrystals (NCs) of type GdVO4 and doped with varying fractions of Eu(III) ions. The NCs are shown to be viable fluorescent probes for hydrogen peroxide. The NCs can be used as probes for sensing glucose via the hydrogen peroxide produced by enzymatic action of glucose oxidase. Detection limits are as low as 1.6 μM for H2O2 and 2.1 μM for glucose.