Luminescent Europium(III) Nanoparticles for Sensing and Imaging of Temperature in the Physiological Range

Peng, Hongshang; Stich, Matthias I. J.; Yu, Jiangbo; Sun, Lining; Fischer, Lorenz H.; Wolfbeis, Otto S.

doi:10.1002/adma.200901614

Cited by 418 publications

(289 citation statements)

References 31 publications

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“…Recent advances in nano and biotechnology enable the miniaturization of luminescent thermometers down to the micro and nanoscale regimes, with high spatial resolution using Ln 3+ -based organic-inorganic hybrids. 60,61 Peng et al reported siloxane hybrid NPs (size ranging from 20 to 30 nm) incorporating an Eu 3+ tris(b-diketonate) complex displaying strong temperature dependence in both luminescence intensity and 5 D 0 lifetime over the physiological range (25-45 1C), illustrating, therefore, the ability for sensing and imaging physiological temperatures. 60 Another recent example of luminescent molecular thermometers was reported by Brites et al 61 They have prepared organic-inorganic hybrids co-doped with [Eu(btfa) 3 (MeOH)(bpeta)] and [Tb(btfa) 3 (MeOH)(bpeta)] b-diketonate chelates (where btfa À , bpeta and MeOH represent, respectively, 4,4,4-trifluoro-1-phenyl-1,3-butanedionate), 1,2-bis-(4-pyridyl)ethane and methanol) combining:…”

Section: Molecular Thermometersmentioning

confidence: 99%

Progress on lanthanide-based organic–inorganic hybrid phosphors

et al. 2011

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Research on organic-inorganic hybrid materials containing trivalent lanthanide ions (Ln 3+ ) is a very active field that has rapidly shifted in the last couple of years to the development of eco-friendly, versatile and multifunctional systems, stimulated by the challenging requirements of technological applications spanning domains as diverse as optics, environment, energy, and biomedicine. This tutorial review offers a general overview of the myriad of advanced Ln 3+ -based organic-inorganic hybrid materials recently synthesised, which may be viewed as a major innovation in areas of phosphors, lighting, integrated optics and optical telecommunications, solar cells, and biomedicine.

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Section: Molecular Thermometersmentioning

confidence: 99%

Progress on lanthanide-based organic–inorganic hybrid phosphors

et al. 2011

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“…[22] These complexes are widely applied as labels in various luminescence assays both as free dyes bearing a functional group for conjugation and in the form of dye-doped nanoparticles, [22,23] but application in optical sensors and analyte-sensitive probes is comparably rare. [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.…”

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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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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“…These VOCs have encouraged many researchers to develop chemical sensors (chemosensors) optically with high sensing capabilities in sensitivity, selectivity and reusability as well as low-cost precursors [3][4]. By using organic chromophores as a chemosensor, the detection of the vapors with organic chromophores (vapochromics) as chemosensors have been studied to evaluate the changes in luminescence (color, emission intensity and lifetime) [5], absorption (transmittance) [6], thermal resistivity [7], refractive index [8], swelling [9], mass [9], permittivity [10] and etc.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Phosphorescent Trinuclear Copper(I) Pyrazolate Complexes for Vapochromic Chemosensors of Ethanol

2017

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We highlight that by using supramolecular single crystals of phosphorescent trinuclear copper(I) pyrazolate complexes with different molecular structures (2 A-E ), vapochromic chemosensors were successfully designed for sensing ethanol with high sensing capability. These complexes 2 A-E were synthesized from non-side chain, 3,5-dimethyl, 3,5-bis(trifluoromethyl), 3,5-diphenyl and 4-(3,5-dimethoxybenzyl)-3,5-dimethyl samping, 3,5-dimetil, 3,5-bis(trifluorometil), 3,5-difenil dan 4-(3,5-dimetoksibensil)-3,5-dimetil dengan hasil 83, 97, 99, 88 ABSTRAK Kami menyoroti bahwa dengan menggunakan kristal tunggal supramolekul dari kompleks tembaga(I) pirazolat tiganuklir pendarfosfor dengan perbedaan struktur molekul, vapokromik kemosensor telah dengan berhasil dirancang untuk mendeteksi etanol dengan kemampuan deteksi tinggi. Kompleks 2 A-E ini masing-masing telah disintesis dari ligan pirazol (1 A-E ) tidak berantai

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Luminescent Europium(III) Nanoparticles for Sensing and Imaging of Temperature in the Physiological Range

Cited by 418 publications

References 31 publications

Progress on lanthanide-based organic–inorganic hybrid phosphors

Progress on lanthanide-based organic–inorganic hybrid phosphors

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

Supramolecular Phosphorescent Trinuclear Copper(I) Pyrazolate Complexes for Vapochromic Chemosensors of Ethanol

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