DYES AND PIGMENTS
·
2025
·
IF 4.2
Yuqing Yang,Shicong Pei,Mingdi Yang,Kehua Zhang,Jie Jin,Yunsheng Ding,Xianhai Hu
Full-color fluorescent tunable materials have attracted much attention due to their broad application prospects in fields such as lighting, display devices, and biological imaging. However, it remains challenging to prepare environmentally friendly full-color fluorescent tunable materials through simple and efficient methods. Herein, a series of amino-functionalized complexes were synthesized, and, via covalent bonding, a color-tunable waterborne polyurethane system (WPU-Eu 1-x-y Tb x Zn y ) was developed, exhibiting both full-color and white fluorescence. In addition, due to the inherent differences in the ultraviolet absorption properties of each complex, the emission color can be further adjusted by changing the excitation wavelength. This dual mechanism enables both preset and dynamic color adjustments, providing various possibilities for applications such as anti-counterfeiting and display technologies. More importantly, WPU-Eu 1-x-y Tb x Zn y uses water as a dispersant, has a low VOC content, and is particularly safe and environmentally friendly.
研究领域:
材料科学
·
光学
·
环境科学
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DOI
高影响因子
OPTICAL MATERIALS
·
2024
·
IF 3.8
Jian He,Bowen Wang,Changshuai Gong,Xuejiao Wang,Qiushi Wang,Ji-Guang Li
Gd 3+ co-doping is effective to enhance the photoluminescence of rare earth activators in various host due to energy transfer, however, it is rarely reported via such strategy to regulate persistent luminescence properties. In this work, Gd 3+ was co-doped into the SrLaAlO 4 : Tb persistent luminescence phosphors, and it is found that the photoluminescence and persistent luminescence of the products can be simultaneously improved. The results indicate that as the doping concentration of Gd 3+ increases, the particle diameters increase which contributes the increased luminescence. Additionally, an energy transfer process from Gd 3+ to Tb 3+ ions was observed, which enhances the emission of Tb 3+ ions. Furthermore, the persistent luminescence properties of the synthesized phosphors were improved. When the UV light source is turned off, the persistent luminescence of SrLaAlO 4 : 0.03Tb 3+ , x Gd 3+ ( x = 0.00–0.97) can last for more than 2 h, which is 100 % enhanced compared to SrLaAlO 4 : 0.03Tb 3+ . The trap distribution of SrLaAlO 4 : 0.03Tb 3+ , x Gd 3+ ( x = 0.00–0.97) phosphors was analyzed by thermoluminescence. It is found that after the substitution of La 3+ with Gd 3+ , the trap position shifted towards higher temperatures and the trap concentration increased. The initial intensity of the persistent luminescence was also enhanced after Gd 3+ co-doping. Based on the experimental findings, the luminescence and persistent luminescence mechanism of SrLaAlO 4 : 0.03Tb 3+ , x Gd 3+ ( x = 0.00–0.97) phosphors were described and discussed.
研究领域:
材料科学
·
光学
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2024
·
IF 3.3
Tianshe Yang,Peilin Wu,Ruifeng Chen,Jingfei Ni,Chao Xu,Xiangmei Liu,Shi Wang,Shujuan Liu
Scintillators are of significance for X-ray excited luminescence (XEL) imaging from scientific research to medical diagnostics application. Rare earth fluoride nanocrystals possess distinctive luminescent properties originated from the abundant energy level of lanthanide activators, showing potential applications as next-generation scintillators. Herein, high Z atomic rare earth element lutetium was chosen to synthesized NaLuF 4 -based nanoscintillators by Tb doping. Core-shell structure was fabricated to further enhance the XEL emission intensity. The NaLuF 4 -based nanoscintillators was demonstrated more efficient XEL emission with 3-folds increase compared to NaYF 4 nanocrystals. NaLuF 4 nanocrystals with a 25 mol% Tb doping and an inert shell coating exhibited excellent scintillation performance with detection limit as low as to 57.05 nGy air s −1 . X-ray imaging demonstrated a high spatial resolution of 10.5 lp mm −1 using a scintillator film made from as-prepared NaLuF 4 -based nanoscintillators. Finally, such NaLuF 4 -based scintillators film have been applied in X-ray imaging application for a chip and a biological specimen. This study proposed an effective strategy to enhance XEL for rare earth fluoride, providing the ability for high-quality X-ray imaging.
研究领域:
材料科学
·
医学影像
·
纳米技术
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Kai Jiang,Tianxiang Hang,Ciyang Zhang,Mingzhu Xia,Qingli Hao,Wu Lei
A series of Eu x Tb 1-x L {Eu x Tb 1-x (5-bop) 3 (H 2 O) 4 } ∞ were synthesized using 3,5-dicarboxyphenylboronic acid (5-bop) as ligands via hydrothermal method. 5-bop ligand functions as an effective antenna, harvesting light and transferring the absorbed energy to both Eu 3+ and Tb 3+ . Tb 3+ acts as an intermediary donor, transferring a majority of its energy to the Eu 3+ . Eu 0.1 Tb 0.9 L is the best compound among Eu x Tb 1-x L series which exhibits excellent water stability and higher luminescence intensity compared to single-metal MOFs. It can selectively recognize dopamine hydrochloride (HDA) through fluorescence quenching, featuring fast response speed, high sensitivity, and strong resistance to interference. Additionally, the mechanisms responsible for the fluorescence quenching of Eu x Tb 1-x L include dynamic quenching and UV competitive absorption. This work provides an effective approach for the rapid and convenient detection of HDA in biological fluids.
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DOI
高影响因子
ANALYST
·
2021
·Vol. 147
·期 2
·282-292
·
IF 4.616
Chenhui Wu,Yunkang Ma,Yingxia Zhou,Wenjie Yang,Lihua Chen
Biofouling is a nuisance in the practical applications of biosensors, which seriously affects the reliability and accuracy of detection. The utilization of antifouling interface materials is a promising option for mitigating biofouling. Only highly accumulated antifouling polymeric surfaces tend to offer “zero” nonspecific protein adsorption. Herein, superior antifouling coatings based on chondroitin sulfate (CS) were prepared by the NH2-MIL-53 (Al) assisted strategy. This is a novel design to improve the antifouling property of material by taking advantage of the high specific surface area of the three-dimensional MOF to increase the accumulation degree of antifouling functional groups per unit area. And the related chemical technology is simple and easy to operate. As expected, this novel CS-loaded MOF demonstrated an excellent antifouling performance in various biological samples, even in 100% goat serum. Only 8.48% changes of differential pulse voltammetry (DPV) were found. Furthermore, this antifouling interface material is successfully applied for the specific detection of the tuberculosis (TB) gene in undiluted biofluids. This developed TB biosensor showed a high analytical performance with a wide linear range (1.00 × 10−16 M to 1.00 × 10−11 M) and a low detection limit, indicating that it may open new avenues for direct biosensing of disease markers for clinical samples.
研究领域:
生物传感器
·
材料科学
·
分析化学
·
医学诊断
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产品关联
DOI
PubMed
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2019
·Vol. 411
·期 7
·1375-1381
·
IF 3.286
Sun Chongmei,Shen Jin,Cui Rongwei,Yuan Fangzheng,Zhang Hui,Wu Xia
A sensitive fluorescent analytical method for the detection of dopamine (DA) was developed based on surface-enhanced Tb(III)/La(III) co-luminescence using silver nanoflowers (AgNFs). Anisotropic AgNFs show strong surface-enhanced fluorescence effect owing to the abundant sharp tips. Tb(III)/La(III)-DA complexes mainly bind to the sharp tips of AgNFs and thus shorten the distance between the complexes. The shortened distance gives rise to obvious surface-enhanced Tb(III)/La(III) co-luminescence effect. In this work, AgNFs offer many superior properties, such as enhanced intrinsic green fluorescence of Tb(III) ( λ ex / λ em = 310/546 nm), increased fluorescence lifetime, and improved energy transfer efficiency. Under the optimum conditions, the fluorescence intensity is linearly correlated with the concentration of DA in the range of 0.80–10 nM ( R 2 = 0.9970), and the detection limit is 0.34 nM ( S/N = 3). The fluorescent nanoprobe was successfully applied to the determination of DA in human serum samples with recoveries ranging from 99.1 to 102.6%.
Graphical abstract
研究领域:
分析化学
·
生物医学工程
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DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2013
·Vol. 48
·期 15
·5140-5147
·
IF 2.163
Gai Guangqing,Wang Liyan,Dong Xiangting,Xu Shuzhi
Fe 3 O 4 /PVP//Tb(BA) 3 phen/PVP magnetic–photoluminescent bifunctional bistrand aligned composite nanofibers bundles based on Fe 3 O 4 nanoparticles (NPs) and terbium complex Tb(BA) 3 phen (BA = benzoic acid) were fabricated by employing a parallel axial electrospinning setup and were characterized by X-ray diffraction, field-emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), transmission electron microscopy, fluorescence spectroscopy, and vibrating sample magnetometer. It is found that Fe 3 O 4 NPs were only dispersed into one strand of the bistrand aligned composite nanofibers bundles, but no nanoparticles in the other strand. And the average diameter of the individual strand fiber was 200 ± 25 nm. The bistrand aligned composite nanofibers bundles exhibit strong green emissions under the excitation of 275 nm ultraviolet light, and the 5
D
4 → 7
F
5 hypersensitive transition at 545 nm was the predominant emission peak of Tb 3+ ions. The newly obtained bifunctional nanofibers bundles exhibit excellent magnetism and high fluorescence intensity and are expected to apply in biology cell separation, magnetic resonance imaging, drug deliver, and fluorescence immunoassays/imaging.
研究领域:
材料科学
·
生物医学工程
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产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2021
·
IF 9.381
Zhibin Lai,Jun Ye,Jian Xiong
A series of fluorescent nanocomplexes of carboxymethyl cellulose (CMC)/Terbium (Tb)- Europium (Eu) were successfully synthesized without introducing a second ligand. By adjusting the concentration of the coordinated ions, these nanocomplexes exhibit favorably visibly tunable luminescence properties with colors being able to change from green to red. The XPS analysis demonstrates the formation Tb(III)-O 2− and Eu(III)-O 2− between OH and COO − in CMC and Tb 3+ or Eu 3+ ions, which is advantage for light absorption by UV–Vis spectroscopy and fluorescence spectroscopy. The ligand CMC plays a role in coordinating with terbium and europium ions, but also serves as an energy donor to these metal ions by antenna effect. Moreover, the energy transfer also occurred from terbium ions to europium ions in CMC matrix, which is responsible for the tunable luminescence properties of these complexes.
研究领域:
材料科学
·
光学
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Ting Wang,Lei Zhang,Jieyuan Zhang,Gaoxian Guo,Xinhui Jiang,Zhengwei Zhang,Siqiao Li
Carbendazim (CBZ), a well-known benzimidazole pesticide, is utilized in agriculture to prevent and cure plant diseases caused by fungi. Residual CBZ in food poses serious threat to human health. Herein, a fluorescent two-dimensional terbium-based metal–organic framework (2D Tb-MOF) nanosheet sensor was developed for the rapid and ultrasensitive detection of CBZ. The 2D Tb-MOF nanosheets, prepared with Tb 3+ ions and 5-borono-1,3-benzenedicarboxylic acid (BBDC) as the precursors, exhibited excellent optical properties. Upon the addition of CBZ, the fluorescence of Tb-MOF nanosheets was quenched because of the inner filter effect (IFE) and dynamic quenching. The fluorescence sensor offered two linear ranges of 0.06–4 and 4–40 µg/mL with a low detection limit of 17.95 ng/mL. Furthermore, the proposed sensing platform was successfully applied to assay CBZ in apples and tea, and satisfactory results were obtained. This study provides an effective alternative strategy for the qualitative and quantitative determination of CBZ to ensure food safety.
研究领域:
农业化学
·
分析化学
·
食品科学
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产品关联
DOI
PubMed
高影响因子
Biomedical Optics Express
·
2023
·Vol. 15
·期 1
·306-318
·
IF 3.4
Lianyu Zhang,Jinhua Liu,Linlin Tian,Dong Zhang,Dong Zhang,Qingru Wang
Plasmonic nanostructures have great potential for improving the radiation properties of emitters. Here, the plasmonic Au nanorods-PVA nanocomposite films are used to uniformly improve the photoluminescence of Tb/Eu co-doped PMMA film within the local micro-region. Under the excitation of 292 nm, the maximum enhancement factor is 37.2-fold for emission at 612 nm and 21.6-fold for emission at 545 nm. Moreover, the finite different time domain simulations are developed to further explain the experimental results. It is indicated that the modulation of luminescence can be attributed to the increase of the local density of optical states through the Purcell effect and the improvement of the energy transfer efficiency between Tb and Eu. Under the excitation of 360 nm, the maximum enhancement factor is about 71.5-fold. In this case, the Au nanorods are mainly used for modulating the emission process at 612 nm, which deduced a greater enhancement factor at 612 nm. This study provides a deep understanding of the interactions between rare earth ions co-doped materials and plasmonic nanostructures, building a bridge to fabricate a useful platform for several applications, such as thin film-based detectors and sensors.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Analytical Methods
·
2021
·Vol. 13
·期 34
·3785-3791
·
IF 2.896
Ling Li,Miaomiao Zhang,Ran Li,Huan Jiang,Zhongde Liu
Olaquindox (OLA), a chemically synthesized antibacterial growth promoter, despite being strictly controlled, is illegally used in feed to improve feed conversion efficiency and increase the rate of weight gain for animals. However, it has become clear that OLA has toxic effects on human beings via the transmission of OLA through the food chain. Here, by employing terbium nitrate to provide metal ions and benzene-1,3,5-tricarboxylic acid (H3BTC) as an organic ligand, a simple, rapid, and easy scale-up synthetic method was presented for the fabrication of water-stable and highly luminescent rod-like metal–organic frameworks (Tb–BTC MOFs). Using the Tb–BTC MOFs as a luminescent probe, the luminescence quenching effect was obviously observed upon the addition of OLA, ascribed to the binding of OLA molecules on the surface of Tb–BTC and the existence of an inner-filter effect (IFE) mechanism. The correlation between the luminescence quenching ΔI and the concentration of OLA was found to be linear from 1.0 to 1000.0 μM with a detection limit of 20.6 nM. Furthermore, a Tb–BTC-loaded fiber paper was prepared and it is highly responsive (30 s) and suitable for visual OLA assay. The method described here can be successfully applied to the detection of OLA in animal feed and edible animal tissue samples.
研究领域:
分析化学
·
材料科学
·
环境科学
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产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Liyan Liu,Yufei Zhang,Siqi Liu,Zhongbao Han,Zhan Yu
Tetracycline (TC) residues are frequently detected in food products and pose potential risks to human health, thus driving the demand for rapid and reliable analytical methods. In this study, a terbium-based metal-organic framework (Tb-MOF) constructed from a boronic-acid–containing ligand, 3,5-dicarboxyphenylboronic acid (5-bop), was synthesized via a one-pot hydrothermal route and evaluated as a fluorescent probe for TC. Comprehensive structural and optical characterization confirmed the successful synthesis of the crystalline Tb-MOF and its characteristic strong green emission under UV excitation. Mechanistic studies indicated that the fluorescence quenching of Tb-MOF by TC originates from dynamic quenching processes including the inner filter effect (IFE) and photoinduced electron transfer (PET). The Tb-MOF probe exhibited a linear response to TC in the concentration range of 0 to 60 μmol/L, with a detection limit of 153 nmol/L. Furthermore, the Tb-MOF sensor was successfully applied to detect TC in real-world food samples including milk and beef, yielding satisfactory recovery and accuracy. This work provides an effective alternative strategy for the quantitative monitoring of TC in complex food substrates, highlighting its significant potential for enhancing food safety assurance.
研究领域:
材料科学
·
分析化学
·
食品安全
·
传感器与生物传感器
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）