SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2023
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IF 4.4
Cheng-lu Zhang,Chang Liu,Shi-ru Nie,Xiang-ling Li,Yi-ming Wang,Yang Zhang,Jing-hao Guo,Yue-dong Sun
On the basis of classical Schiff base reaction, two novel and efficient fluorescent probes ( DQNS , DQNS1 ) were designed and synthesized by introducing Schiff base structure into dis-quinolinone unit for structural modification, which can be used to detect Al 3+ and ClO − . Because the power supply capacity of H is weaker than that of methoxy, DQNS shows better optical performance: a large Stokes Shift (132 nm), identify Al 3+ and ClO − with high sensitivity and selectivity, low detection limit (29.8 nM and 25 nM) and fast response time (10 min and 10 s). Through the working curve and NMR titration experiment, the recognition mechanism of Al 3+ and ClO − (PET and ICT) probes are confirmed. Meanwhile, it is speculated that the probe has continuity for the detection of Al 3+ and ClO − . Furthermore, DQNS detection of Al 3+ and ClO − was applied to real water samples and living cell imaging.
研究领域:
化学
·
生物学
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PubMed
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 1
·1-10
·
IF 5.3
Yang Dou,Shao Tong,Wang Xiaoshuang,Hong Min,Li Rui,Li Chenzhong,Yue Qiaoli
New portable hydrogel sensors for Al 3+ and Fe 3+ detection were designed based on the aggregation-induced emission (AIE) and color change of N-doped carbon dots (N-CDs). N-CDs with yellow fluorescence were prepared by a one-pot hydrothermal method from 2,5-dihydroxyterephthalic acid and acrylamide. The fluorescence of N-CDs was enhanced by Al 3+ about 20 times and quenched by Fe 3+ . It was interesting that although Fe 3+ showed obvious quenching on the fluorescence of N-CDs it did not cause a noticeable change in the fluorescence of N-CDs + Al 3+ . The colorless solution of N-CDs appeared blue in the presence of Fe 3+ without the influence of Al 3+ . Therefore, the turn-on fluorometry and colorimetry systems based on N-CDs were constructed for the simultaneous detection of Al 3+ and Fe 3+ . Furthermore, the portable sensing of Al 3+ and Fe 3+ was realized with the assistance of hydrogel, filter paper, cellulose acetate, and cellulose nitrate film. The proposed approach was successfully applied to the detection of Al 3+ and Fe 3+ in food samples and cell imaging. Graphical Abstract
研究领域:
分析化学
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材料科学
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环境科学
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Rui Cheng,Hongan Zhang,Ziqi He,Xueting Luo,Wanju Zhang,Ziqiang Xu,Minsong Lin
Myricetin-derived carbon dots enable ratio-metric pH sensing with pH from 7.2 to 9.6. • Hydrazone structures confer highly sensitive and selective Al 3+ recognition. • Confocal imaging validates dual-function intracellular pH and Al 3+ monitoring. Sensitive analysis of intracellular pH and Al 3+ is essential for biological and environmental accessment. And traditional fluorescent nanomaterials often contain heavy metal components, whereas carbon dots (CDs) are metal-free with excellent biocompatibility, making them attractive candidates for probe construction. However, most CDs-based fluorescent probes have been developed empirically, with rational design strategies remaining relatively limited. Therefore, hydrazone functionalized carbon dots (N 2 H 4 @CDs) are fabricated by combining natural myricetin precursor with hydrazine-assisted post-functionalization strategy, establishing a structure-guided design that enables both ratio-metric pH sensing and selective Al 3+ analysis. Notably, N 2 H 4 @CDs showed dual emissions at 495 and 570 nm, with the peak at 570 nm increasing under higher pH. This ratio-metric response enabled accurate self-calibrated analyzing, showing a great linear correlation between the ratio I 495 / I 570 and pH from 7.2 to 9.6. As for Al 3+ analysis, fluorescence spectra show a pronounced enhancement of the emission intensity at 495 nm upon addition of Al 3+ , reflecting specific coordination with surface functional groups. The N 2 H 4 @CDs platform enable sensitive analysis of Al 3+ , with a linear range of 2–18 μmol/L and a detection limit of 0.125 μmol/L (3.37 μg/L). The spiked recovery experiments in lake water yielded satisfactory results, indicating its potential application in environmental exposure analysis. Confocal imaging in L929 fibroblasts confirmed that N 2 H 4 @CDs enable imaging of intracellular pH and Al 3+ . This strategy propses a rational hydrazone engineering strategy to realize ratiometric pH imaging as well as selective Al 3+ sensing. Download: Download high-res image (100KB) Download: Download full-size image
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高影响因子
INORGANIC CHEMISTRY
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2023
·
IF 4.6
Xin Li,Xiaodie Zhu,Haitao Tang,Jian Zhang,Min Zhou,Qingpeng Peng,Bin Meng,Shuang Wang,·Alexey·Nikolaevich Yakovlev,Lei Zhao,Jie Yu,Xuhui Xu
Scintillator is a key component in X-ray detectors that determine the performance of the devices. Nevertheless, due to the interference of the ambient light sources, scintillators are only operated in a darkroom environment currently. In this study, we designed a Cu+ and Al3+ co-doped ZnS scintillator (ZnS: Cu+, Al3+) that introduces donor–acceptor (D–A) pairs for X-ray detection. The prepared scintillator displayed an extremely high steady-state light yield (53,000 photons per MeV) upon X-ray irradiation, which is 5.3 times higher than that of the commercial Bi4Ge3O12 (BGO) scintillator, making it possible in X-ray detection with the interference of ambient light. Furthermore, the prepared material was employed as a scintillator to construct an indirect X-ray detector, which performed a superior spatial resolution (≈10.0 lp/mm) as well as persistent stability under visible light interference, demonstrating the feasibility of the scintillator in practical applications. Therefore, this research presented a convenient and useful strategy to realize X-ray detection in a non-darkroom environment.
研究领域:
材料科学
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核仪器
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辐射探测
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光学材料
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固体物理
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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2014
·
IF 2.129
Ke Zhang,Zheng-yin Yang,Bao-dui Wang,Shao-Bo Sun,Ying-Dong Li,Tian-rong Li,Zeng-chen Liu,Jun-mei An
A new Schiff-base ligand ( 1 ) with good fluorescence response to Al 3+ , derived from 2-oxo-quinoline-3-carbaldehyde and nicotinic hydrazide, had been synthesized and investigated in this paper. Spectroscopic investigation revealed that the compound 1 exhibited a high selectivity and sensitivity toward Al(III) ions over other commonly coexisting metal ions in ethanol, and the detection limit of Al 3+ ions is at the parts per billion level. The mass spectra and Job’s plot confirmed the 1:1 stoichiometry between 1 and Al 3+ . Potential utilization of 1 as intracellular sensors of Al 3+ ions in human cancer (HeLa) cells was also examined by confocal fluorescence microscopy.
研究领域:
分析化学
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无机化学
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生物无机化学
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传感器与探针
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荧光光谱学
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高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2024
·
IF 8.2
Shuang Meng,Jiaxiang Liu,Yuanyuan Yang,Shun Mao,Zhuo Li
In the current context of water environmental monitoring and pollution control, there's a crucial need for rapid and simple methods to detect multi-pollutant. We herein report an easy one-step hydrothermal synthesis method to produce Eu-based metal-organic frameworks (Eu MOFs), which was used as a fluorescent probe to detect the aquatic environmental pollutants of ciprofloxacin (CIP) and aluminum ions (Al 3+ ). This fluorescent sensor enabled the cascade detection of CIP and Al 3+ through fluorescence enhancement and ratio fluorescence response, respectively. The introduction of CIP significantly turned on the characteristic fluorescence of Eu MOFs at 595 nm and 616 nm through the “antenna effect”. Based on this, the sensor enables quantitative detection of CIP within a linear range of 0–120 μM with a LOD as low as 50.421 nM. In the presence of Al 3+ , the fluorescence emission of Eu MOFs-CIP was sharply turned off due to strong Al 3+ coordination with CIP, while the blue fluorescence emission of CIP was remarkably enhanced. And thus allowing ratio fluorescence quantitative detection of Al 3+ (LOD = 2.681 μM). The introduction of CIP and Al 3+ in cascade resulted in distinct fluorescence color changes from colorless to red and eventually to blue, exhibiting pronounced fluorescence characteristics. This observable phenomenon enables the visual detection of CIP and Al 3+ in both aqueous phase and paper test strips. By combining the analysis of fluorescence chromaticity with the use of a smartphone, the fluorescence color of test papers allows for simple quantitative determination, which provides a convenient and accessible approach for quantifying CIP and Al 3+ in water environments.
研究领域:
环境科学
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分析化学
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PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2020
·
IF 3.232
Lu Sun,Xiaoqing Wang,Jiuzhou Shi,Shilong Yang,Li Xu
In this work, a natural product probe, kaempferol, which exhibited aggregation-induced emission (AIE) characteristic in water/tetrahydrofuran (THF) binary solvent was explored. The probe showed high resistance to photobleaching capacity and excellent selectivity towards Al 3+ in the aggregation state. Upon the addition of Al 3+ , the probe displayed more than 12-fold (I 486 /I 421 ) fluorescence intensity enhancement, accompanied by a color change, suggesting that the aggregated kaempferol can be used as a ratiometric probe for Al 3+ detecting. Notably, promising selectivity to Al 3+ within the pH range of 6–8 made the probe suitable for physiological conditions. Further Arabidopsis thaliana root imaging experiment demonstrated that the probe could image Al 3+ in the plant.
研究领域:
植物学
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生物化学
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PubMed
高影响因子
CERAMICS INTERNATIONAL
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2016
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IF 2.758
Renping Cao,Jijun Huang,Xiangfeng Ceng,Zhiyang Luo,Wen Ruan,Qianglin Hu
Novel LiGaTiO 4 :Mn 4+ and LiGaTiO 4 :Mn 4+ , R (R=Mg 2+ and Al 3+ ) phosphors are synthesized by solid-state reaction method in air. Emission spectra of LiGaTiO 4 :Mn 4+ phosphor with excitation 330, 395, and 470 nm contain three emission bands peaking at ~668, 680, and 696 nm in the range of 610–800 nm, and excitation spectrum monitored at 668 nm contains broad excitation band with three excitation peaks located at ~330, 395, and 480 nm within the range 250–600 nm, which indicate that LiGaTiO 4 :Mn 4+ phosphors can be effectively excited by ultraviolet, near ultraviolet, and blue light-emitting diode chips. The optimal Mn 4+ doping concentration is ~0.6 mol% in LiGaTiO 4 :Mn 4+ phosphor. Time resolved luminescence spectra and these lifetime data indicate that it is only a single type of Mn 4+ ion luminescent center in LiGaTiO 4 :Mn 4+ phosphor. Emission intensity of LiGaTiO 4 :Mn 4+ phosphor may be enhanced 1.3–2.2 times by co-doping Mg 2+ and Al 3+ ions. The luminous mechanism of Mn 4+ ion is analyzed by Tanabe-Sugano energy diagram and configurational coordinate diagram.
研究领域:
材料科学
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光学
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高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2018
·Vol. 29
·期 6
·1829-1837
·
IF 1.754
Ma Deyun,Chen Chanchan,Chen Minchun,Zhu Shanshan,Wu Yetao,Li Zhanhong,Li Yan,Zhou Liping
A hydrostable and methyl-functionalized MOF with a qtz topology constructed from dinuclear clusters, {[Cd(1,4-NDC)(3,3′-dmbpy)]·(H 2 O)} n ( 1 ) (1,4-H 2 NDC = 1,4-naphthalenedicarboxylic, 3,3′-dmbpy = 3,3′-dimethyl-4,4′-bipyridine) was synthesized and structurally characterized. TGA, PXRD, and water vapor sorption results show high thermal and water stability for the framework. 1 displays a 3D framework with the channel of 5.1 × 7.0 Å 2 along the b axis. The framework exhibits a reversible and highly selective luminescent sensing function with respect to Al 3+ cation.
研究领域:
材料科学
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化学
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高影响因子
MICROCHEMICAL JOURNAL
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2020
·
IF 3.594
Baogang Wang,Xing Liu,Wenmeng Duan,Shanshan Dai,Hongsheng Lu
The red-emission carbon dots (RCDs) were facile synthesized by the solvothermal method to construct a visual and ratiometric fluorescent probe towards Al 3+ in combined with quercetin (QCT). With the increasing concentration of Al 3+ ( c Al 3+ ), the red fluorescence (605 nm) of the RCDs–QCT system under 360 nm excitation was stable, and meanwhile a green fluorescence (506 nm) appeared and gradually enhanced because of the continuous formation of QCT–Al 3+ complex. The red fluorescence served as the reference signal and the green as the reporter, and then a visual and ratiometric fluorescent probe towards Al 3+ was established based on the variation of the ratio of fluorescence intensities at 506 and 605 nm ( I 506 / I 605 ) and the change of fluorescence color from red to yellow green. On account of the linear relationship between the I 506 /I 605 value and c Al 3+ , the detection range and limit of detection were determined to be 0–35 μM and 90 nM, respectively. The above Al 3+ probe not only exhibited the high selectivity, sensitivity and anti-interface ability, but also realized the quantitative determination of Al 3+ in ultrapure and tap samples with satisfactory results, reflecting its great application potential for practical fluorescent determination of Al 3+ in various aqueous environments.
研究领域:
分析化学
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环境科学
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材料科学
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DOI
高影响因子
Materials Today Advances
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2023
·
IF 10
Xiaodan Tang,Yichao Zhao,Hongmei Yu,Shuanping Cui,Hunter Temple,Eric Amador,Yun Gao,Ming-li Chen,Shaoyan Wang,Zhizhi Hu,Wei Chen
Carbon dots have many new and interesting phenomena, and the concentration dependent luminescence wavelength is an intriguing one. Herein, nitrogen-sulfur co-doped carbon dots (NSCDs) diluted to different concentrations, the high concentration of G-NSCDs (0.2 mg mL −1 ) with green fluorescence and the low-concentration of B-NSCDs (0.01 mg mL −1 ) with blue fluorescence were obtained. Further, it was found that the detection behaviors are different for different concentrations. The “turn-off” fluorescent sensor of G-NSCDs can specifically recognize rifampicin in a linear range of 0.2–20 μM with a detection limit of 56.6 nM employing the mutual effect of photo-induced electron transfer and dynamic quenching. Meanwhile, a “turn-off” B-NSCDs fluorescence sensor was constructed to effectively identify morin based on the internal filtration effect and static quenching, achieving a suitable linearity of 0.2–30 μM and a detection limit of 51.2 nM. Due to the strong chelation of morin and Al 3+ , a “turn-on” fluorescent probe for sequential detection Al 3+ was fabricated based on B-NSCDs-morin system, obtaining a good linearity of 0.1–2.0 μM with a satisfactory detection limit of 45.8 nM. These interesting behaviors indicate that NSCDs are expected to become novel sensing materials for the monitoring of rifampicin, morin and Al 3+ in organisms, which is beneficial for our health.
研究领域:
分析化学
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生物传感
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药物检测
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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2023
·
IF 4.4
Brian Musikavanhu,Zeping Huang,Quanhong Ma,Yongdi Liang,Zhaoli Xue,Lei Feng,Long Zhao
A pyridine modified naphthol hydrazone Schiff base chemosensor, NaPy , was prepared in a two-step process to detect aluminum ion (Al 3+ ) in different samples. The probe shows a turn-off emission response towards Al 3+ at a 1:1 binding stoichiometry via intramolecular charge transfer (ICT) mechanism, as validated by density functional theory (DFT) calculations and a series of spectroscopic measurements. The response time is slightly over one minute with a limit of detection (LOD) value of 0.164 µM, demonstrating the great sensitivity of the probe. It is also found that NaPy exhibits high selectivity towards Al 3+ and resists interference from seventeen other cations. Application investigations in paper strips, water samples and HeLa cells suggest that NaPy can be used as an efficient probe for sensing Al 3+ in real environmental samples and biosystems.
研究领域:
分析化学
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环境科学
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生物医学
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PubMed
高影响因子
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