A europium(iii) chelate as an efficient time-gated luminescent probe for nitric oxide

Abstract

The first Eu(3+) chelate-based luminescent probe specific for nitric oxide (NO) has been designed and synthesized for highly sensitive and selective time-gated luminescence detection of NO. Based on the probe, a time-gated luminescence imaging technique was developed for imaging the endogenous NO production in living plant cells/tissues.

Exceptional Oxygen Sensing Properties of New Blue Light‐Excitable Highly Luminescent Europium(III) and Gadolinium(III) Complexes

“…[24][25][26][27] For example, luminescent Eu(III) complexes were applied as optical temperature probes, [27][28][29][30][31] pH indicators, [32][33][34][35][36] fluoroionophores for bicarbonate, [37,38] citrate [39] and lactate [40] and as hydrogen peroxide [41] and nitrogen monooxide probes. [42] Several Eu(III) complexes were applied as luminescent oxygen indicators. [43][44][45][46][47][48] However, the sensitivity of these oxygen-sensing materials is rather low (quenching at 100% O 2 I 0 /I not exceeding 3-4) for them to be suitable for measurements in physiologically relevant conditions with good resolution.…”

Nickel(II) Dithiocarbamate Complexes Containing Sulforhodamine B as Fluorescent Probes for Selective Detection of Nitrogen Dioxide

“…While transition metal complex based probes contain the nitric oxide reactive metal as fluorescence quencher, 6-10 the organic dye based probes detect nitric oxide indirectly through oxidation of aromatic amines by N 2 O 3 , 11-12 , which is produced via oxidation of NO by O 2 . 13-14 We herein report the first fluorescent probe for selective detection of nitrogen dioxide, containing Ni(II) as a fluorescence quencher and NO 2 reaction center.…”

Construction of four d10 coordination polymers containing binuclear rings as building blocks from 4′-(2H-tetrazol-5-yl)biphenyl-4-carboxylic acid

“…In this study, 4′-(2H-tetrazol-5-yl)biphenyl-4-carboxylic acid (H 2 TBPC), a ligand that possesses a long biphenyl spacer between the terminal tetrazole and carboxylate groups, was selected to prepare new functional CPs by following the same design strategy. Reactions of H 2 TBPC with Zn(II) and Cd(II) result in four new d 10 CPs. The structures and luminescence properties of these CPs were investigated.…”

“…Coordination polymers (CPs) have attracted attention because of their interesting topologies and properties, such as gas separation, luminescence, magnetism, and sensors [1][2][3][4][5][6][7][8][9][10][11][12]. Controllable synthesis of CPs is not clearly elucidated.…”