Supramolecular Complex Strategy for Pure Organic Multi-Color Luminescent Materials and Stimuli-Responsive Luminescence Switching

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yue Shen ◽  
Shiyin Wang ◽  
Xiangyu Zhang ◽  
Nan Li ◽  
Haichao Liu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Supramolecular Complex ◽  
Luminescent Materials ◽  
Stimuli Responsive ◽  
Anthracene Derivative ◽  
Emission Color

Pure organic multi-color luminescent materials were developed using the supramolecular complex strategy based on a high-efficiency blue-emitting anthracene derivative, in which the emission color can be finely tuned from blue...

scholarly journals Li substituent tuning of LED phosphors with enhanced efficiency, tunable photoluminescence, and improved thermal stability

2019 ◽  
Vol 5 (1) ◽  
pp. eaav0363 ◽  
Author(s):  
Ming Zhao ◽  
Zhiguo Xia ◽  
Xiaoxiao Huang ◽  
Lixin Ning ◽  
Romain Gautier ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Efficiency ◽  
Light Emitting ◽  
Green Component ◽  
Emission Color ◽  
Lighting Industry ◽  
Improved Performance ◽  
White Light Emitting Diodes ◽  
Li Substitution ◽  
Lithium Incorporation

Solid-state phosphor-converted white light-emitting diodes (pc-WLEDs) are currently revolutionizing the lighting industry. To advance the technology, phosphors with high efficiency, tunable photoluminescence, and high thermal stability are required. Here, we demonstrate that a simple lithium incorporation in NaAlSiO4:Eu system enables the simultaneous fulfillment of the three criteria. The Li substitution at Al sites beside Na sites in NaAlSiO4:Eu leads to an enhanced emission intensity/efficiency owing to an effective Eu3+to Eu2+reduction, an emission color tuning from yellow to green by tuning the occupation of different Eu sites, and an improvement of luminescence thermal stability as a result of the interplay with Li-related defects. A pc-WLED using the Li-codoped NaAlSiO4:Eu as a green component exhibits improved performance. The phosphors with multiple activator sites can facilitate the positive synergistic effect on luminescence properties.

Tuning of emission color in the germanate luminescent materials for cement application

Optik ◽  
2018 ◽  
Vol 174 ◽  
pp. 394-399
Author(s):  
Chang Sheng ◽  
Qunmei Zhou ◽  
Zhiwu Liu ◽  
Guanxing Luo
Keyword(s):  
Luminescent Materials ◽  
Emission Color

scholarly journals Сommission test of Effectiveness of the supramolecular complex based on triclabendazole and albendazole at Fasciolosis and gastrointestinal strongylatosis of sheep

2020 ◽  
Vol 14 (2) ◽  
pp. 98-102
Author(s):  
E. V. Lagereva ◽  
V. E. Abramov ◽  
M. B. Musayev ◽  
Sh. V. Vatsayev ◽  
A. Z. Dzhamalova ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Side Effects ◽  
Therapeutic Dose ◽  
High Efficiency ◽  
Wide Spectrum ◽  
Gastrointestinal Nematodes ◽  
Supramolecular Complex ◽  
Test Method ◽  
Group Method ◽  
Combined Feed

The purpose of the research is a commission test of the effectiveness of the supramolecular complex based on triclabendazole and albendazole (SMCTA) against gastrointestinal nematodes and fascioles of sheep in a previously calculated therapeutic dose.Materials and methods. The SMCTA effectiveness was tested in the North Caucasus Federal District in July 2019 on Tushin sheep spontaneously infected with gastrointestinal nematodes and fascioles simultaneously. The sheep were owned by an independent entrepreneur. Coproovoscopic examinations were carried out according to the GOST by the Fulleborn’s method using ammonium nitrate at the Republican Veterinary Laboratory of Grozny. Helminthological dissection of 5 control sheep was done to determine the intensity of infection with fascioles and gastrointestinal nematodes, and 3 sheep from each group were dissected at 14 days after dehelminthization to record the effectiveness of the drug. 4 more sheep from each group were dissected on the 25th day. The drug effectiveness was recorded by the critical test method according to the Guidelines approved by the World Association for the Advancement of Veterinary Parasitology (1995).Results and discussion. When conducting clinical trials on sheep spontaneously infected with strongylates of the gastrointestinal tract and lungs, and fascioles, a therapeutic dose was calculated when the drug was administered individually in the form of a suspension of 4.0 mg/kg for the Active Substance (2.0 for ABZ : 2.0 for TCB), 40 mg/kg for the drug, and in a mixture with concentrated feed using the group method of 5.0 mg/kg for the AS (2.5 mg/kg for ABZ : 2.5 mg/kg for TCB), 50 mg/kg for the drug. The commission test of SMCTA at a dose of 5.0 mg/kg for the AS (50 mg/kg for the drug) by the group method in a mixture with combined feed at fasciolosis and strongylatosis of the gastrointestinal tract of sheep showed, according to the coproovoscopy and helminthological dissection of animals, that 100 % efficiency was obtained. A mixture of the drug with combined feed was readily eaten by the sheep; and no side effects were noted after dehelminthization. The Commission noted the absence of side effects, high efficiency and a wide spectrum of the SMKTA effect at a 4-fold reduced therapeutic dose of 5.0 mg/kg as compared with the albendazole (7.5 mg/kg) and triclabendazole (10 mg/kg) substances. 

scholarly journals Stimuli-Responsive Nanoplatform-Assisted Photodynamic Therapy Against Bacterial Infections

2021 ◽  
Vol 8 ◽  
Author(s):  
You Zhou ◽  
Wenmin Deng ◽  
Mulan Mo ◽  
Dexu Luo ◽  
Houhe Liu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Bacterial Infections ◽  
High Efficiency ◽  
Clinical Settings ◽  
Oxygen Species ◽  
Human Beings ◽  
Stimuli Responsive ◽  
Therapeutic Technique ◽  
Future Developments ◽  
Effective Delivery

Bacterial infections are common diseases causing tremendous deaths in clinical settings. It has been a big challenge to human beings because of the antibiotics abuse and the newly emerging microbes. Photodynamic therapy (PDT) is a reactive oxygen species-based therapeutic technique through light-activated photosensitizer (PS). Recent studies have highlighted the potential of PDT as an alternative method of antibacterial treatment for its broad applicability and high efficiency. However, there are some shortcomings due to the low selectivity and specificity of PS. Growing evidence has shown that drug delivery nanoplatforms have unique advantages in enhancing therapeutic efficacy of drugs. Particularly, stimuli-responsive nanoplatforms, as a promising delivery system, provide great opportunities for the effective delivery of PS. In the present mini-review, we briefly introduced the unique microenvironment in bacterial infection tissues and the application of PDT on bacterial infections. Then we review the stimuli-responsive nanoplatforms (including pH-, enzymes-, redox-, magnetic-, and electric-) used in PDT against bacterial infections. Lastly, some perspectives have also been proposed to further promote the future developments of antibacterial PDT.

Efficient aggregation-induced delayed fluorescent materials based on bipolar carrier transport materials for the fabrication of high-performance nondoped OLEDs with very small efficiency roll-off

2020 ◽  
Vol 8 (28) ◽  
pp. 9549-9557 ◽  
Author(s):  
Yan Fu ◽  
Huijun Liu ◽  
Xiangyu Zhu ◽  
Jiajie Zeng ◽  
Zujin Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Carrier Transport ◽  
High Efficiency ◽  
Delayed Fluorescence ◽  
Luminescent Materials ◽  
Fluorescent Materials

The integration of bipolar carrier transport materials with an aggregation-induced delayed fluorescence unit generates robust luminescent materials, which lead to efficient nondoped OLEDs with high efficiency stability.

Probing the competition between acetate and 2,2′-bipyridine ligands to bind to d-block group 12 metals

2017 ◽  
Vol 41 (21) ◽  
pp. 12843-12853 ◽  
Author(s):  
José Antônio do Nascimento Neto ◽  
Cameron Capeletti da Silva ◽  
Leandro Ribeiro ◽  
Géssica Adriana Vasconcelos ◽  
Boniek Gontijo Vaz ◽  
...  
Keyword(s):  
High Efficiency ◽  
Structural Diversity ◽  
Luminescent Materials ◽  
Block Group ◽  
Group 12 ◽  
Group 12 Metals

Molecular and structural diversity in Zn2+, Cd2+ and Hg2+ complexes towards high-efficiency luminescent materials.

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