Journal of Fluorescence最新文献_第8页

Polypod Carboxylic Acid-Rare Earth Complex with High Cyclic Stability for Nitrobenzene Compound Detection. 用于硝基苯化合物检测的高循环稳定性聚羧酸稀土复合物。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-26 DOI: 10.1007/s10895-024-03948-7

Licong Chen, Rui Shi, Zhongzhi Wang, Xin Qiao, Pengcheng Hao, Wenyu Zhao

{"title":"Polypod Carboxylic Acid-Rare Earth Complex with High Cyclic Stability for Nitrobenzene Compound Detection.","authors":"Licong Chen, Rui Shi, Zhongzhi Wang, Xin Qiao, Pengcheng Hao, Wenyu Zhao","doi":"10.1007/s10895-024-03948-7","DOIUrl":"https://doi.org/10.1007/s10895-024-03948-7","url":null,"abstract":"The 5',5''-bis(4-carboxyphenyl)-[1,1':3',1'':3'',1'''-quaterphenyl]-4,4'''-dicarboxylic (H4L1) ligand has a large conjugated rigid planar structure and good absorption of ultraviolet radiation, which can provide effective \"antenna effect\". However, rare earth complexes using H4L1 as the sole ligand have not been reported. In this paper, rare earth Eu was combined with H4L1 ligand to produce organic rare earth composite L1-Eu by solvothermal synthesis method. It was found through fluorescence spectroscopy that the emission of L1-Eu complex has a linear response to nitrobenzene compounds. The L1-Eu composite material has a low detection limit for nitrobenzene compounds, with detection limits of 0.910, 8.401, 24.510, and 8.171 µM for nitrobenzene, o-nitrophenol, m-nitrophenol, and p-nitrophenol, respectively. Further more the L1-Eu complex can sensitively respond to nitrobenzene compounds while resisting interference from common metal ions and organic solvents. In particular, L1-Eu composite material has good stability and recyclability. Therefore, L1-Eu composite material can serve as a fluorescent probe for specific detection of nitrobenzene compounds. We believe that the L1-Eu complex provides a new method for fluorescence detection of nitrobenzene compounds.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of P-Rich Carbon Quantum Dots for Sensitive Fluorescent Detection of 2-Methylimidazole. 用于灵敏荧光检测 2-甲基咪唑的富 P 碳量子点的合成。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-26 DOI: 10.1007/s10895-024-03946-9

Zhengyuan Dai, Hao Liu, Xuyuan Sun, Ying Wang, Jie Fan, Li Li, Yaping Ding

引用次数: 0

Rapid Quantification of Oxytetracycline Based on Fluorescence Enhancement Influenced by pH. 基于 pH 值影响的荧光增强快速定量土霉素

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-26 DOI: 10.1007/s10895-024-03941-0

Xiaodian Huang, Dong Yang, Liang Song, Yongcan Jiang

引用次数: 0

Optical Chemosensor as a Sensitive and Selective Tool for the Detection of Thiocyanate Ions Via Cu²⁺ Induced Sensor and Its Practical Application. 通过 Cu2+ 诱导传感器检测硫氰酸根离子的灵敏且具有选择性的光学化学传感器及其实际应用。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-26 DOI: 10.1007/s10895-024-03943-y

Parul Bhalla, Rajesh Malhotra

{"title":"Optical Chemosensor as a Sensitive and Selective Tool for the Detection of Thiocyanate Ions Via Cu2+ Induced Sensor and Its Practical Application.","authors":"Parul Bhalla, Rajesh Malhotra","doi":"10.1007/s10895-024-03943-y","DOIUrl":"https://doi.org/10.1007/s10895-024-03943-y","url":null,"abstract":"In various fields, including analytical, environmental, and biochemistry, the detection of ions is significant. A simple probe, 3-(1-((4-aminophenyl)imino)ethyl)-4-hydroxy-6-methyl-2H-pyran-2-one (DPD), was designed for this study and used for the detection of Cu2+ ions in methanol, based on dehydroacetic acid and phenylenediamine moieties. Binding interactions studies were performed using UV-Vis measurements, which showed selective binding behaviour towards Cu2+ ions. The HRMS spectral data and Job's plot were used to check the stoichiometry ratio of 2:1 of a probe to Cu2+ ions. A detection limit of 1.38×10-7 M for Cu2+ ions was observed. Theoretical DFT calculations were used to determine the quantum parameters and the energy gap between frontier molecular orbitals. Interestingly, the DPD-Cu2+ complex acted as a probe for the detection of SCN- ions at a low LOD value, i.e., 1.97×10-7 M. A novel incidence of reversibility with SCN- ions was reported using the HRMS technique. Next, real water and blood samples were used, and the concentration of Cu2+ ions was calculated to further analyse the practical applicability of the probe. The DPD probe showed better selectivity and sensitivity than previously reported sensors, especially in complex matrices, where other sensors frequently experience interference and detection limit issues, indicating its potential as an advanced tool for ion detection in various applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green Synthesis of Boric Acid Modified Bismuth Based Non-Toxic Perovskite Quantum Dots for Highly Sensitive Detection of Oxytetracycline. 用于高灵敏度检测土霉素的硼酸修饰铋基无毒包光体量子点的绿色合成。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-26 DOI: 10.1007/s10895-024-03933-0

Jiali Liu, Chen Li, Shen Zhang, Xiao Wei, Yue Gao, Fei Wang, Mengwei Yan, Jiaqi Wang, Yuhui Zhang

{"title":"Green Synthesis of Boric Acid Modified Bismuth Based Non-Toxic Perovskite Quantum Dots for Highly Sensitive Detection of Oxytetracycline.","authors":"Jiali Liu, Chen Li, Shen Zhang, Xiao Wei, Yue Gao, Fei Wang, Mengwei Yan, Jiaqi Wang, Yuhui Zhang","doi":"10.1007/s10895-024-03933-0","DOIUrl":"https://doi.org/10.1007/s10895-024-03933-0","url":null,"abstract":"In recent years, perovskite quantum dots (PQDs) have successfully attracted widespread attention due to their excellent optical properties. However, the instability and toxicity problems of perovskite quantum dots are the main obstacles limiting their applications. In this work, bismuth-based perovskite quantum dots were synthesized by a ligand-assisted reprecipitation method, based on which a novel boric acid-functionalized bismuth-based non-toxic perovskite quantum dots fluorescent sensor (Cs3Bi2Br9-APBA) that can be stabilized in the ethanol phase was prepared by a boron affinity technique. Based on the covalent binding interaction of Cs3Bi2Br9-APBA with oxytetracycline (OTC), a highly selective and sensitive method for the detection of OTC was developed, which effectively solved the problems of poor stability and toxicity in the application of perovskite quantum dots. Under the optimal conditions, the fluorescence intensity of the synthesized Cs3Bi2Br9-APBA was linear with the concentration range of 0.1 ∼ 18 µM OTC, and the detection limit could reach 0.0802 µM. The fluorescence detection mechanism was explored and analyzed by spectral overlap analysis, suppression efficiency study of observed and corrected fluorescence, and fluorescence lifetime decay curve fitting, the mechanism of OTC detection by Cs3Bi2Br9-APBA was identified as the inner filter effect (IFE). In addition, the sensor successfully realized the quantitative detection of trace OTC in the environment, and our study provides a new idea for the preparation of green perovskite materials with high stability and selectivity.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Donor-Acceptor Based 4-Nitrophenol Luminophores as a Yellow-Orange Fluorescent Material for Optoelectronic Applications. 基于供体-受体的新型 4-硝基苯酚发光体作为光电应用领域的黄橙色荧光材料。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-25 DOI: 10.1007/s10895-024-03938-9

K G Mane, S R Pujari, V B Shahabade, P B Nagore

{"title":"Novel Donor-Acceptor Based 4-Nitrophenol Luminophores as a Yellow-Orange Fluorescent Material for Optoelectronic Applications.","authors":"K G Mane, S R Pujari, V B Shahabade, P B Nagore","doi":"10.1007/s10895-024-03938-9","DOIUrl":"https://doi.org/10.1007/s10895-024-03938-9","url":null,"abstract":"A new category of 4-nitrophenol (4-NP) luminophores, infused with varying amounts of Pyrene (Py), was synthesized using the standard solid-state reaction method to investigate novel luminophores that emit at longer wavelengths. Their optical and electrochemical properties were analyzed using fluorimetry and cyclic voltammetry techniques. The fluorescence spectrum of Py-doped 4-NP displayed a broad fluorescence band with a peak at 599 nm for a Py concentration of 1 × 10- 3 mol, indicating exciplex formation between 4-NP and Py in the excited state. The electrochemical data revealed that the energy levels of the Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO) for the synthesized luminophores ranged from - 5.72 to -5.73 eV and - 3.01 to -3.08 eV, respectively. Thermal stability was evaluated through TGA analysis. The XRD confirmed the synthesis of a homogeneous material. The SEM images showed crystal sizes of approximately 115 nm. This thorough investigation indicates the potential of these newly synthesized yellow-orange fluorescent luminophores for optoelectronic applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable Doped Carbon Dots as Antioxidant and Nanocarrier for Therapeutic Cargos. 可持续掺杂碳点作为抗氧化剂和治疗用纳米载体。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-25 DOI: 10.1007/s10895-024-03940-1

Afzal Hussain, Mohamed Fahad Alajmi, S Ganguly

{"title":"Sustainable Doped Carbon Dots as Antioxidant and Nanocarrier for Therapeutic Cargos.","authors":"Afzal Hussain, Mohamed Fahad Alajmi, S Ganguly","doi":"10.1007/s10895-024-03940-1","DOIUrl":"https://doi.org/10.1007/s10895-024-03940-1","url":null,"abstract":"Aside from their fluorescence sensing capabilities, carbon dots doped with heteroatoms show tremendous promise as nanocarriers for medicinal compounds and as antioxidants. We present a method for producing carbon dots from chitosan and lemon extract (CLCDs) using a one-step hydrothermal coupling synthesis. The as-synthesized CLCDs exhibited remarkable colloidal stability, antioxidant behavior, cytocompatibility, and nanocarrier for drug molecules. The nanoparticles was analyzed using advanced techniques such as Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), fluorescence spectroscopy, electron paramagnetic resonance (EPR) spectroscopy, and transmission electron microscopy (TEM) to determine the precise composition of their surface. In order to evaluate the drug transport properties of CLCDs, their surfaces were further modified with anticancer drug compounds. The drug release behavior was studied against physiologically simulated fluids and at different pH environments showing better delayed response in acidic condition. The plausible mechanistic pathways have been confirmed after fitting the results into Higuchi, Weibull and Korsmeyer-Peppas models. The goodness of fit was more than 95% for the Korsmeyer-Peppas model, with the release mechanism supported by anomalous transport. Moreover, the radical scavenging activity of CLCDs was also confirmed at low levels (1 mg/mL) which could be inferred > 85% efficacy against mostly employed testing agents (DPPH, ABTS, and hydroxyl radicals). Thus, the prepared CLCDs could be used as suitable nanovector in payload delivery with prominent antioxidant activity and low toxicity against living cell lines.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solvent Polarity Dependent Ultrafast Relaxation Kinetics of ADS800AT Dye. ADS800AT 染料的溶剂极性依赖性超快弛豫动力学。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-25 DOI: 10.1007/s10895-024-03932-1

Sajin Ponnan, D Narayana Rao, Sri Ram G Naraharisetty

引用次数: 0

Visualizing Mitochondrial Membrane Potential with FRET Probes: Integrating Fluorescence Intensity Ratio and Lifetime Imaging. 用 FRET 探针观察线粒体膜电位：整合荧光强度比和寿命成像。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-25 DOI: 10.1007/s10895-024-03929-w

Fei Peng, Xiangnan Ai, Xiaoyu Bu, Zixuan Zhao, Baoxiang Gao

{"title":"Visualizing Mitochondrial Membrane Potential with FRET Probes: Integrating Fluorescence Intensity Ratio and Lifetime Imaging.","authors":"Fei Peng, Xiangnan Ai, Xiaoyu Bu, Zixuan Zhao, Baoxiang Gao","doi":"10.1007/s10895-024-03929-w","DOIUrl":"https://doi.org/10.1007/s10895-024-03929-w","url":null,"abstract":"Mitochondrial membrane potential (MMP) is crucial for mitochondrial function and serves as a key indicator of cellular health and metabolic activity. Traditional lipophilic cationic fluorescence intensity probes are unavoidably influenced by probe concentration, laser intensity, and photobleaching, limiting their accuracy. To address these issues, we designed and synthesized a pair of fluorescence molecules, OR-C8 and SiR-BA, based on the Förster Resonance Energy Transfer (FRET) mechanism, for dual-modality visualization of MMP. OR-C8 anchors to the inner mitochondrial membrane through strong hydrophobic interactions, while SiR-BA is expelled from mitochondria when MMP decreases, thereby regulating the FRET process. During MMP reduction, the fluorescence intensity and lifetime of OR-C8 increase, while the fluorescence intensity of SiR-BA decreases. By combining changes in fluorescence intensity ratio and fluorescence lifetime, dual-modality visualization of MMP was achieved. This method not only accurately reflects MMP changes but also provides a novel tool for in-depth studies of mitochondrial function and related disease mechanisms, offering significant potential for advancing mitochondrial research and therapeutic development.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Characterizations of Novel bi-ligand TbEu(cpioa)phen Phosphors with High Quantum Efficiency for WLED Applications. 用于 WLED 应用的具有高量子效率的新型双配体 TbEu(cpioa)phen 荧光的合成与表征。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-09-25 DOI: 10.1007/s10895-024-03927-y

Qianwei Wang, Qi Wu, Jinhu Guo, Xinyu Yang, Mengxuan Fang, Jiaoying Wang, Minghui Tai, Yichong Cheng, Dalai Jin, Longcheng Wang

{"title":"Synthesis and Characterizations of Novel bi-ligand TbEu(cpioa)phen Phosphors with High Quantum Efficiency for WLED Applications.","authors":"Qianwei Wang, Qi Wu, Jinhu Guo, Xinyu Yang, Mengxuan Fang, Jiaoying Wang, Minghui Tai, Yichong Cheng, Dalai Jin, Longcheng Wang","doi":"10.1007/s10895-024-03927-y","DOIUrl":"https://doi.org/10.1007/s10895-024-03927-y","url":null,"abstract":"The hydrothermal method was employed to synthesize a novel bi-ligands LnMOF: Ln(cpioa)phen. The secondary ligand 1, 10-phen serves as a bridging agent to further facilitate energy transfer between Ln ions and the primary ligand H3cpioa. A comparison between Ln(cpioa) MOFs (Ln: Tb3+, Eu3+) and Ln(cpioa)phen MOFs (Ln: Tb3+, Eu3+) reveals that addition of the secondary ligand significantly improves the emission intensity by as high as almost 34 times. After detailed structural study, it is found that different Ln ions have the similar coordination in the Ln(cpioa)phen MOF. In addition, the chromaticity of Ln(cpioa)phen MOFs can be easily tuned by the amounts of doping Ln ions. La0.974Tb0.0255Eu0.0005(cpioa)phen MOF has a white emission with a CIE coordinate of (0.323, 0.343). Characterizations of corresponding LED devices show that device based on Ln(cpioa)phen MOF has better photoluminescence performances, which indicates that Ln(cpioa)phen MOF has great potential of for WLED applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0