Anti-oxygen-quenching room temperature phosphorescence stabilized by deoxycholate aggregate

Li, Gai-Ru; Wu, Jianjun; Weijun, Jin; Xie, Jianwei

doi:10.1016/s0039-9140(03)00185-1

Cited by 24 publications

(15 citation statements)

References 15 publications

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“…The reason for this difference could be the very slow dynamic process occurring after a fast interaction between 3-BrQ and NaDC ordered aggregates in water. 20,21 The results shown in Figure 4 indicate that DBS gels as substrate not only induce a stable RTP but also possess the ability of a fast response. This is an advantage in the production of RTP sensors.…”

Section: Methodsmentioning

confidence: 98%

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Ion-Unquenchable and Thermally “On–Off” Reversible Room Temperature Phosphorescence of 3-Bromoquinoline Induced by Supramolecular Gels

Wang

Yang

et al. 2014

Langmuir

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Ion-unquenchable and thermally on-off reversible room temperature phosphorescence (RTP) can be induced by entrapping 3-bromoquinoline (3-BrQ) into supramolecular gels formed by the self-assembly of a sorbitol derivative (DBS). In comparison with conventional substrates inducing RTP, the gel state 3-BrQ/DBS can produce strong RTP due to the efficient restriction of the vibration of 3-BrQ. Notably, the rather inconvenient deoxygenation is no longer necessary in the preparation of 3-BrQ/DBS gels. The produced RTP was found to be very fast to reach stable, not depending on the standing time. As a reference, in the liquid state of 3-BrQ/sodium deoxycholate (NaDC), stable RTP can be observed after standing for 5 h. The investigation of RTP quenching indicates that the mechanism of RTP induced by DBS gels mainly involves the microenvironment in which 3-BrQ is located. 3-BrQ was entrapped in the hydrophobic 3D network structure of DBS gels, thereby restricting the motion and collision of 3-BrQ and avoiding RTP quenching and additionally quenching by ions. Furthermore, the RTP of 3-BrQ/DBS gels show an excellent "on-off" effect at 10 or 80 °C. This indicates that the solid DBS gel is beneficial for the preparation of RTP sensor devices.

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Section: Methodsmentioning

confidence: 98%

“…Jin et al reported antioxygen-quenching RTP, based on a sodium deoxycholate (NaDC) solution. 20 NaDC is a kind of surfactant which is able to form ordered aggregates similar to conventional micelles. For example, the strong RTP of bromonaphthalene and its derivatives can be induced by NaDC aggregates.…”

Section: Introductionmentioning

confidence: 99%

Ion-Unquenchable and Thermally “On–Off” Reversible Room Temperature Phosphorescence of 3-Bromoquinoline Induced by Supramolecular Gels

Wang

Yang

et al. 2014

Langmuir

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“…Room temperature phosphorescence (RTP) in aflatoxigenic strains grown on media is commonly used in food mycology. Aflatoxins immobilized on resin beads can induce RTP in the presence or absence of oxygen and heavy atoms (Costa-Fernandez and Sanz-Medel, 2000) and also have high sensitivity and specificity (Li et al, 2003). Moreover, several biosensors and immunoassays have been developed to detect ultra-traces of aflatoxins to ensure the food safety.…”

Section: Detection Techniquesmentioning

confidence: 99%

Aflatoxins: A Global Concern for Food Safety, Human Health and Their Management

et al. 2017

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The aflatoxin producing fungi, Aspergillus spp., are widely spread in nature and have severely contaminated food supplies of humans and animals, resulting in health hazards and even death. Therefore, there is great demand for aflatoxins research to develop suitable methods for their quantification, precise detection and control to ensure the safety of consumers’ health. Here, the chemistry and biosynthesis process of the mycotoxins is discussed in brief along with their occurrence, and the health hazards to humans and livestock. This review focuses on resources, production, detection and control measures of aflatoxins to ensure food and feed safety. The review is informative for health-conscious consumers and research experts in the fields. Furthermore, providing knowledge on aflatoxins toxicity will help in ensure food safety and meet the future demands of the increasing population by decreasing the incidence of outbreaks due to aflatoxins.

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“…Compound (20)a nd its derivatives are knowntoshowefficient phosphorescence when entrapped in as terically demanding environment such as micelles built from sodium deoxycholate. [26] Furthermore, it is known that efficient quenching occurs in the presence of nitrite or Cu II ions. [27] Here, the gelation of an aqueous solution of (20)w ith DBS led to an efficient phosphorescences ignal.…”

Section: Aggregation-induced Phosphorescencementioning

confidence: 99%

Phosphorescence Through Hindered Motion of Pure Organic Emitters

Hayduk

Riebe

Voskuhl

2018

Chemistry A European J

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This minireview deals with the phenomenon of room-temperature phosphorescence induced by aggregation or crystallisation. Recent achievements, as well as novel classes of these unique luminophores, are put in to focus. In this fashion, different compounds, which reveal delayed fluorescence or phosphorescence upon fixation in a crystal lattice or within aggregates are described. Furthermore, the photophysical properties, the origin of the long-lived triplet states, and the possible applications of these fascinating classes of molecules are also discussed. To conclude, a short overview about the state of art in the field of pure organic phosphors at room temperature is presented.

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Anti-oxygen-quenching room temperature phosphorescence stabilized by deoxycholate aggregate

Cited by 24 publications

References 15 publications

Ion-Unquenchable and Thermally “On–Off” Reversible Room Temperature Phosphorescence of 3-Bromoquinoline Induced by Supramolecular Gels

Ion-Unquenchable and Thermally “On–Off” Reversible Room Temperature Phosphorescence of 3-Bromoquinoline Induced by Supramolecular Gels

Aflatoxins: A Global Concern for Food Safety, Human Health and Their Management

Phosphorescence Through Hindered Motion of Pure Organic Emitters

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