CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Lili Li,Yingdan Song,Hongxin Song,Kaige Cheng,Qiang Xu,Lei Zhao
The light waveguiding effect of transparent glass ceramics (GCs) on mechanoluminescence (ML) signals is highly attractive for remote stress sensing and structural health monitoring applications. However, a prerequisite for generating ML in GCs is pre-irradiation with high-energy rays, which not only increases application costs but also poses a risk of GCs devitrification. Herein, we propose a safe, non-destructive, and convenient charging method for the ML of KMgF 3 : Tb 3+ GCs, namely ultraviolet (UV) light charging. By effectively filling the intrinsic defects in KMgF 3 : Tb 3+ nanocrystal using UV light, we achieved trap-controlled ML in rigid GCs. Moreover, this ML is attributed to thermoluminescence (TL) induced by frictional heating during mechanical stimulation. Additionally, when the GCs powder is combined with flexible polydimethylsiloxane (PDMS), a self-powered (without any pre-charging) ML induced by interfacial triboelectricity can also be achieved, which is similar to the results observed in most flexible ML systems. This work proposes a more straightforward and safer approach for applications such as mechanical sensing based on the ML of transparent GCs.
研究领域:
材料科学
·
光学
·
传感技术
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Yuzhu Dong,Tianyun Du,Mengyao Wang,Xiuxun Han
X-ray-excited persistent luminescence (XEPersL) of fluoride nanoparticles (NPs) is of great potential in X-ray excitation photodynamic treatment (X-PDT) and X-ray detection fields. However, their practical application is currently impeded by the hazard of X-rays with high dose rates to the human body and low luminescence efficiencies. Here, we reported a feasible strategy for modulating X-ray excited optical luminescence (XEOL) intensities and XEPersL lifetimes in NaLuF4:Tb3+ NPs through adjusting F/Re ratios, which were shown to effectively impact the generation of carrier traps. In addition to the enhanced emission intensity and prolonged decay time in the radioluminescence of NaLuF4:Tb3+ NPs with an optimal precursor F/Re ratio of 4.5, a quite low detection limit of 2.01 nGy·s–1 was achieved. Furthermore, the developed fluoride NPs exhibit remarkable luminescence stability. These findings can promote the further exploration of efficient XEPersL nanomaterials with tailored performance in X-PDT and biomedical applications.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
放射学
·
诊疗学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2022
·Vol. 10
·期 34
·6443-6452
·
IF 7.571
Dan Xiu,Sibo Zhao,Zhenhua Li,Yanan Xu,Yao Wang,Zhijun Zhu,Min Zhang,Christopher D. Snow,Laurence A. Belfiore,Jianguo Tang
In this work, a designed porous DNA crystal with high intrinsic biocompatibility was used as the scaffold material to load fluorescent guest molecules to detect anti-cancer drugs. It is shown here that the synthesized crystals have the characteristics consistent with the designed large solvent channels, and can therefore accommodate guest molecules such as fluorescent proteins that cannot be accommodated by less porous crystals. Eu(TTA)3phen and Tb(acac)3phen lanthanide complexes were individually noncovalently loaded into the porous crystals, resulting in hybrid luminescent DNA crystals. Emodin, an anti-cancer, anti-tumor, anti-inflammatory drug, was found to quench lanthanide complexes in solution or in crystals. Notably, emodin is the active ingredient of Lianhua Qingwen Capsule, an anti-COVID-19 drug candidate. Therefore, the porous DNA crystals reported here have potential applications as a biocompatible and theranostic delivery biomaterial for functional macromolecules.
研究领域:
材料科学
·
生物技术
·
药学
·
纳米技术
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产品关联
DOI
PubMed
高影响因子
Foods
·
2022
·Vol. 11
·期 21
·3388
·
IF 5.561
Xijuan Tu,Yunmin Tao,Jiaxu Chen,Chunping Du,Qian Jin,Yuchang He,Ji Yang,Shaokang Huang,Wenbin Chen
In the present study, a lanthanide fluorescence sensor array was developed for the discrimination of honey’s botanical origin. Dipicolinic acid (DPA) was used as the antenna ligand for sensitizing the fluorescence of Tb3+and Eu3+to prepare the DPA-Tb3+/Eu3+complex. This lanthanide fluorescence sensor showed a cross-reactive response to the major constituents of honey, which led to the result that different classes of honey solution exhibited distinct quenching effects on the fluorescence of the DPA-Tb3+/Eu3+complex. Furthermore, a fluorescence sensor array composed of ten sensors was constructed by adjusting the pH and the component of the DPA-Tb3+/Eu3+complex to show multivariate responses towards honey. The visual fluorescence image of the sensor array was recorded by using a smartphone under excitation with portable UV lamp. Results indicated that the pattern of the visual image was related with the botanical origin. After extracting the RGB value of each sensor in 96-well plate, the ratio of R/G was used for principal component analysis (PCA). The results showed that three classes of honey (astragalus, logan, and litchi) were well distinguished. Moreover, the value of principal component 1 (PC1) showed good linearity with the composition of mixing honey and could be used for semi-quantitative analysis. The proposed lanthanide fluorescence sensor array presents a visual and portable method for the discrimination of a honey’s origin without the use of analytical instruments, and might provide a novel and simple strategy for the measurement of food origin.Keywords:honey;botanical origin;lanthanide complex;fluorescence;sensor array
研究领域:
食品科学
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分析化学
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光谱学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER TESTING
·
2025
·
IF 6
Yulin Niu,Zhongjie Cheng,Yanliang Yue,Shichao Wang,Wenfei Shen,Yao Wang,Jun Li,Matt J. Kipper,Soo Wohn Lee,Laurence A. Belfiore,Jianguo Tang
In this study, an innovated Tb 3+ -induced polystyrene-co-acrylic acid aggregates (TIPAs) were synthesized to impart strong luminescent property and high mechanical enhancement on polyethylene terephthalate. The structure and photophysical properties of TIPAs were investigated, and their incorporation into poly(ethylene terephthalate) (PET) was explored to fabricate a novel hybrid luminescent PET-based hybrid material via melt blending. By adjusting the doping concentration of TIPAs (ranging from 0.3 wt% to 2 wt%), a comprehensive study was conducted on the crystallization behavior, mechanical properties, and fluorescence performance of the composite. The physicochemical properties of the materials were characterized using differential scanning calorimetry (DSC), X-ray diffraction (XRD), tensile testing, and fluorescence spectroscopy. The relative crystallinity of the composite TIPAs@PET increased by 38.2 %, and both the tensile strength and modulus improved by 41.4 % and 34.4 %, respectively, when the TIPA doping concentration was 1.2 wt%. Moreover, the fluorescence intensity of the hybrid luminescent PET material reached its maximum at a doping level of 1.2 wt%, while maintaining excellent transparency. The introduction of TIPAs not only endowed the PET polyester with enhanced fluorescence and mechanical properties but also acted as an efficient nucleating agent, promoting the crystallization of PET.
研究领域:
材料科学
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高分子科学
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纳米技术
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光学材料
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机械工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 24
·8171-8182
·
IF 7.059
Jing Wang,Jin Liu,Jing Wang,Yao Wang,Jie Cao,Lin Hou,Ruifen Ge,Jinnan Chi,Linjun Huang,Junlan Guo,Abdur Raheem Aleem,Zhengxing Song,Shree Krishna Tamang,Jixian Liu,Guanghui Wang,Matt J. Kipper,Laurence A. Belfiore,Jianguo Tang
The in vivo trace content of some transition-metal ions is important for biological systems and an inappropriate content may cause diseases. With the purpose of developing an efficient sensing system for Cu2+, this work demonstrates the excellent sensing property of Tb3+/Eu3+-induced polysaccharide aggregates. Photophysical measurements indicate that at a Cu2+ concentration of 20 μM, the fluorescence of Tb3+-induced polysaccharide aggregates (TIPAs) or Eu3+-induced polysaccharide aggregates (EIPAs) can be quenched rapidly and sensitively. Addition of EDTA to chelate Cu2+ restores the fluorescence, indicating that the fluorescence quenching in the presence of Cu2+ is reversible. Initial cytotoxicity experiments with mammalian cells show that the luminescent lanthanide complexes are cytotoxic, but complexing the lanthanides to polysaccharides renders them cytocompatible. These new complexes integrate the advantages of superior lanthanide fluorescence, compatibility with aqueous systems, and cytocompatibility. The microparticle formulation EIPA can be used for applications that require the complexes to be removed from the sample (e.g. by centrifugation), whereas the nanoparticle formulation TIPA is suitable for cell labeling applications with excellent water-solubility, biocompatibility, non-cell toxicity, and cell imaging.
研究领域:
分析化学
·
生物化学
·
生物医学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2017
·
IF 7.78
Jie-Qiong Chen,Shi-Fan Xue,Zi-Han Chen,Shengqiang Zhang,Guoyue Shi,Min Zhang
A novel label-free ratiometric fluorescent probe is developed for the detection of H 2 O 2 based on GelRed/[G 3 T] 5 /Tb 3+ hybrid, in which GelRed (a nucleic acid dye) intercalated into the designed single-stranded DNA [G 3 T] 5 (i.e. GelRed/[G 3 T] 5 ) acts as a stable build-in reference with red emission and Tb 3+ sensitized by [G 3 T] 5 (i.e. [G 3 T] 5 /Tb 3+ ) as a sensitive response signal with green fluorescence. With the successive addition of Hg 2+ and cysteine (Cys) to GelRed/[G 3 T] 5 /Tb 3+ , the fluorescence of [G 3 T] 5 /Tb 3+ can be effectively quenched and recovered respectively, while the fluorescence of GelRed/[G 3 T] 5 remains unchangeable. Combined with these properties, we have demonstrated its application for label-free ratiometric fluorescence detection of H 2 O 2 with self-calibration. The sensing mechanism is based on the specific reaction between H 2 O 2 and Cys, the resulting disulfide reverses the Cys-mediated fluorescence changes of [G 3 T] 5 /Tb 3+ . This method is further applied to the monitoring of oxidase-related reactions. As the glucose oxidase (GOx)-biocatalyzed oxidation of glucose and the acetylcholine esterase/choline oxidase (AChE/ChOx) cascade yield H 2 O 2 , such two biocatalytic processes are successfully examined utilized our proposed method, indicating its potential broad applications in biomedical analysis. In addition, we have also demonstrated its feasibility for oxidase-based visual biosensing, in which only a handheld UV lamp is used. Importantly, coupled with our proposed visual biosensing, a realtime quantitative scanometric assays has been also demonstrated by using a smartphone with easy-to-access color-scanning APP as the detection platform. Compared to traditional methods, the proposed design is cost-effective, simple to prepare and easy-to-use without fluorescence labeling or chemical modification.
研究领域:
分析化学
·
生物医学工程
·
生物化学
·
传感器与执行器
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产品关联
DOI
PubMed
高影响因子
Optical Materials Express
·
2021
·Vol. 11
·期 9
·2828-2838
·
IF 3.442
Taisen Li,Jin Liu,Xinzhi Wang,Abdur Raheem Aleem,Yao Wang,Matt J. Kipper,Laurence A. Belfiore,Jianguo Tang
Multimodal nanoprobes are of great significance in clinical diagnosis, because they integrate the advantages of multiple imaging methods. The combination of multiple imaging modes provides more comprehensive and complex information than single-mode imaging, which can greatly improve clinical diagnoses. In this paper, Gd3+ and Tb3+ co-induced polyelectrolyte nanoaggregates (GTIPAs) are introduced as a novel dual-mode imaging probe. Containing gadolinium and terbium, GTIPAs are regular spherical nanoparticles, whose diameters are about 150 nm. As a fluorescent nanomaterial, GTIPAs have strong and stable luminescence intensity. At the same time, as an MRI contrast agent, GTIPAs exhibit a good contrast effect and a high longitudinal relaxation rate. In addition, the polyelectrolytes reduce the cytotoxicity of the complexes, confering excellent biocompatibility and water solubility. Therefore, GTIPAs are non-toxic luminescence/magnetic resonance dual-mode imaging probes.
研究领域:
纳米技术
·
医学成像
·
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
LUMINESCENCE
·
2021
·Vol. 37
·期 2
·348-356
·
IF 2.464
Shilin Shen,Zerong Long,Yi Lu,Jia Chen
A novel double-windows fluorescence sensor for carbofuran (CF) detection was successfully developed based on rare-earth Eu,Tb-doped Y 2 O 3 @SiO 2 -based molecularly imprinted nanoparticles (MINs) with a multilayer core-shell structure. The recognition process of the MINs for CF was fairly fast and needed only ~8 min to reach a dynamic equilibrium. Interestingly, one fluorescence attenuation window was found with an increase in CF concentration ( Q ) from 0.1 to 10 μg ml −1 and with a limit of detection (LOD) of 0.04 μg ml −1 at 544 nm belonging to the Tb 3+ emission, as well as another fluorescence enhanced window within the CF concentration range 10–100 μg ml −1 (LOD = 4 μg ml −1 ) at 617 nm of Eu 3+ emission in the dispersed rare-earth-doped MIN colloidal aqueous solution. Luminescence resonance energy transfer from CF to Eu 3+ and an inner filter effect of CF towards Tb 3+ , as well from the two independent detection windows were clearly observed simultaneously. The competition experiment displayed hardly any marked interference during detection of CF following addition of its analogues (carbaryl, isoprocarb, aldicarb, methomyl, and etofenprox). Moreover, the MINs could also be applied to accurately detect CF in rhubarb and wolfberry samples with recoveries of 85.7–92.2%. This sensing system has high specific recognition and a wide detection range for CF and provides new opportunities for pesticide detection.
研究领域:
分析化学
·
纳米技术
·
环境科学
·
农药检测
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Huangyao Chen,Chonghui Qi,Xiang Guo,Jun Zhang,Chaoyong Deng,Ruirui Cui
In lead-free halide double perovskites, doping and alloying are key strategies for optical performance enhancement. However, achieving stable full-spectrum white emission in single-component phosphors remains challenging. Herein, high-quality single-phase white emission is realized in Cs2NaGdCl6 via Sb3+/Tb3+/Mn2+ codoping. Pristine Cs2NaGdCl6 shows a weak sky-blue emission, while Sb3+ doping significantly enhances the self-trapped exciton (STE) intensity. Density functional theory calculations show that Sb3+ doping creates new sensitizing states, boosting the STE emission. Under Sb3+ sensitization, STE energy transfers to Tb3+ and Mn2+. The incorporation of Tb3+ elevates the photoluminescence quantum yield from 0.66% (pristine) to 68.38% (CNGC: Sb3+, Tb3+), while the broadband red emission from Mn2+ plays a critical role in achieving full-spectrum coverage. Tunable white-light emission is achieved via a dopant ratio optimization. Combining the phosphor with a 340 nm commercial light-emitting diode chip produces a white light-emitting diode with a correlated color temperature of 4658 K and a color rendering index of 91.9. Temperature-dependent photoluminescence spectra confirm ratiometric sensing capability, yielding maximum relative sensitivities (Sr) of 1.06%/K (I463 nm/I608 nm) and 1.12%/K (I548 nm/I608 nm) at 298 K. These results demonstrate that this material exhibits multifunctional application potential in the fields of white-light illumination, optical thermometry, and fluorescent anticounterfeiting.
研究领域:
材料科学
·
光学材料
·
固态照明
·
光学传感
·
光子学
·
测温技术
·
防伪技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 11
·期 6
·2120-2128
·
IF 8.067
Peishan Shao,Puxian Xiong,Dongliang Jiang,Zhicong Chen,Yao Xiao,Yongsheng Sun,Dongdan Chen,Zhongmin Yang
Mechanoluminescence (ML) materials, which can emit light under external mechanical stimuli, have attracted wide attention in diverse applications such as displays, anti-counterfeiting and 3D signatures. However, weak ML intensity and limited ML regulation methods are still limiting the development of ML materials. In this study, a series of Li0.997YGeO4:0.5% Bi3+,xTb3+ samples are synthesized by a high temperature solid-state reaction method. Based on photoluminescence (PL), crystal structures, ML, persistent luminescence (PersL), diffuse reflectance (DR) spectra and thermoluminescence (TL) analysis, the inherent relationship between PL, PersL and ML is further clarified in detail. The existence of abundant trap sites created by the vacancy of Li+ ions and the Bi3+ → Tb3+ energy transfer can improve the ML properties of phosphors. These excellent materials can open up a new approach for enhancing the ML intensity and expand the application of ML materials in the anti-counterfeiting fields.
研究领域:
材料科学
·
发光材料
·
光学性能
·
防伪技术
✓ 已验证
DOI
高影响因子
CHEMICAL PAPERS
·
2019
·Vol. 73
·期 7
·1761-1766
·
IF 1.246
Zhang Li-hui,Zhou Yan-biao,Li Wei-li,Zhao Xu-yao,Wang Ya-bo
Lu(OH)CO 3 :Ln 3+ /LuBO 3 :Ln 3+ (Ln = Eu, Tb) nanospheres have been synthesized by the soft chemistry route. This synthesis process does not require the addition of any organic solvents and surfactant. The whole process consists of homogeneous precipitation and hydrothermal process. First, uniform spherical Lu(OH)CO 3 :Ln 3+ (Ln = Eu, Tb) nanoparticles with the sizes of 70 nm were obtained by the classic urea-based homogeneous precipitation. Then, with the above Lu(OH)CO 3 :Ln 3+ (Ln = Eu, Tb) nanosphere as the precursor, the composites of Lu(OH)CO 3 :Ln 3+ /LuBO 3 :Ln 3+ (Ln = Eu, Tb) nanospheres formed by the simple hydrothermal process. The phases, morphologies, as well as the luminescence properties of as-prepared samples were characterized by means of X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and photoluminescence. Under a short wavelength excitation, the down-conversion Eu 3+ and Tb 3+ -doped LuBO 3 samples were investigated and explained.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）