Synthesis, photophysical and oxygen-sensing properties of a novel Eu3+ complex incorporated in mesoporous MCM-41

Zuo, Qiting; Li, Bin; Zhang, Liming; Wang, Yinghui; Liu, Yanhong; Zhang, Jun; Chen, Ying; Guo, L.

doi:10.1016/j.jssc.2010.05.022

Cited by 21 publications

(10 citation statements)

References 31 publications

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“…In fact, optical oxygen sensors based on the lanthanide complexes show poor sensitivity and quenching even at 100% O 2 does not exceed factor of 4. [43][44][45][46][47][48] As will be shown below, the proximity of the T 1 level of HPhN and the 5 D 0 level of Eu 3+ significantly improves the oxygen-sensing capabilities due to back energy transfer from the Eu 3+ to the HPhN ligand. In fact, the quenching of the T 1 state of the organic and metal-organic compounds by molecular oxygen is typically very efficient and is limited only by diffusion of the interacting species.…”

Section: Oxygen-sensing Properties Of the Eu(iii) Complexesmentioning

confidence: 94%

“…[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. Moreover, UV light was required for the excitation of all the indicators which is not attractive for many reasons.…”

Section: Introductionmentioning

confidence: 99%

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

Borisov

Fischer

Saf

et al. 2014

Adv Funct Materials

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New europium(III) and gadolinium(III) complexes bearing 8-hydroxyphenalenone antenna combine efficient absorption in the blue part of the spectrum and strong emission in polymers at room temperature. The Eu(III) complexes show characteristic red luminescence whereas the Gd(III) dyes are strongly phosphorescent. The luminescence quantum yields are about 20% for the Eu(III) complexes and 50% for the Gd(III) dyes. In contrast to most state-of-the-art Eu(III) complexes the new dyes are quenched very efficiently by molecular oxygen. The luminescence decay times of the Gd(III) complexes exceed 1 ms which ensures exceptional sensitivity even in polymers of moderate oxygen permeability. These sensors are particularly suitable for trace oxygen sensing and may be good substitutes for Pd(II) porphyrins. The photophysical and sensing properties can be tuned by varying the nature of the fourth ligand. The narrow-band emission of the Eu(III) allows efficient elimination of the background light and autofluorescence and is also very attractive for use e.g. in multi-analyte sensors. The highly photostable indicators incorporated in nanoparticles are promising for imaging applications. Due to the straightforward preparation and low cost of starting materials the new dyes represent a promising alternative to the state-ofthe-art oxygen indicators particularly for such applications as e.g. food packaging.

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Section: Oxygen-sensing Properties Of the Eu(iii) Complexesmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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

Borisov

Fischer

Saf

et al. 2014

Adv Funct Materials

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“…Once incorporated in polystyrene, 105 showed an excitation maximum at 283 nm, an emission maximum at 501 nm and nonmonoexponential decay curves with a short and a long lifetime components of 3.1and 12.2 μs, respectively. Europium(III) complexes, thanks to their strong luminescence which is attributed to the 4f-4f transitions, have been widely applied in optical amplification, light conversion molecular devices, OLEDs, and their luminescence properties have been exploited for oxygen sensing [260]. Very narrow luminescence bands are of particular interest for oxygen sensing because of the potential for multiplexing applications where emission of other probes or labels can be used in different spectral windows.…”

Section: Complexes With Rarely Used Central Atomsmentioning

confidence: 99%

“…In this case as well, the sensitivity of the sensor showed a dependence on the amount of dye (weight percent) used to dope the nanofibrous membrane (lifetimes were in order of ms) and the best performances were obtained with 3 % of 107 in the matrix. Two further complexes featuring three tta ligands and an additional antenna ligand have been reported: [Eu(tta) 3 D-PIQ] 108 and [Eu(tta) 3 ECIP] 109 which were respectively incorporated in a mesoporous matrix and in polystyrene nanofibrous membrane [208,260]. The sensitivity to oxygen of these two complexes was lower than the one of complex 107; the photophysical properties can be found in Table 5.…”

Section: Complexes With Rarely Used Central Atomsmentioning

confidence: 99%

Indicators for optical oxygen sensors

Borisov¹,

Quaranta²,

Klimant³

2012

Advances in Chemical Bioanalysis

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Continuous monitoring of oxygen concentration is of great importance in many different areas of research which range from medical applications to food packaging. In the last three decades, significant progress has been made in the field of optical sensing technology and this review will highlight the one inherent to the development of oxygen indicators. The first section outlines the bioanalytical fields in which optical oxygen sensors have been applied. The second section gives the reader a comprehensive summary of the existing oxygen indicators with a critical highlight on their photophysical and sensing properties. Altogether, this review is meant to give the potential user a guide to select the most suitable oxygen indicator for the particular application of interest.

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“…But their study focused only on the investigation on the luminescence properties of the material. Zou's group used Eu(DPIQ)(TTA) 3 complex into MCM-41 for oxygen sensing based on fluorescent quenching effect [32].…”

Section: Introductionmentioning

confidence: 99%

An improved non-enzymatic hydrogen peroxide sensor based on europium functionalized inorganic hybrid material—Evaluation of optical and electrochemical properties

Jin

Sakthivel

Gandhi

et al. 2016

Sensors and Actuators B: Chemical

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Synthesis, photophysical and oxygen-sensing properties of a novel Eu3+ complex incorporated in mesoporous MCM-41

Cited by 21 publications

References 31 publications

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

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

Indicators for optical oxygen sensors

An improved non-enzymatic hydrogen peroxide sensor based on europium functionalized inorganic hybrid material—Evaluation of optical and electrochemical properties

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