Journal of Fluorescence最新文献_第3页

Enhanced Photocatalytic Degradation of Methyl Red Dye with Bismuth-Doped ZnO: Kinetics, Mechanistic and Re-cyclability Aspects. 铋掺杂ZnO光催化降解甲基红染料的动力学、机理及可回收性研究。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-27 DOI: 10.1007/s10895-025-04533-2

Muhammad Alamzeb, Noor-Ul-Ain Zulfiqar, Muhammad Faran Akhtar, Iqra Riaz, Faiza Ameen, Aqib Asghar, William N Setzer

{"title":"Enhanced Photocatalytic Degradation of Methyl Red Dye with Bismuth-Doped ZnO: Kinetics, Mechanistic and Re-cyclability Aspects.","authors":"Muhammad Alamzeb, Noor-Ul-Ain Zulfiqar, Muhammad Faran Akhtar, Iqra Riaz, Faiza Ameen, Aqib Asghar, William N Setzer","doi":"10.1007/s10895-025-04533-2","DOIUrl":"https://doi.org/10.1007/s10895-025-04533-2","url":null,"abstract":"This study highlights the synthesis and characterization of bismuth-doped zinc oxide (Bi-ZnO) through sol-gel methodology. The synthesized catalyst was characterized by X-ray diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX), Brunauer-Emmett-Teller (BET), and Ultraviolet-Visible spectroscopy (UV/Vis). Later on, it was employed for the photocatalytic degradation of methyl red dye (MR) in simulated water samples. The XRD spectra showed that it possesses hexagonal wurtzite structure. FTIR results revealed alterations in vibrational frequencies at 1450, 2350 and 3400 cm-1, SEM analysis indicated slab-like morphology with distinct edges and faces. The smaller particles have rod-like morphology with irregular shapes and sizes. The mean particle size was found to be 45.0 ± 3.1 nm. The multi-point BET surface area was found to be 4.68 m2/g while the pore size was found to be 205.923 nm. Maximum dye degradation, at 200 ppm dye concentration, 400 mg catalyst dose, pH 4, 30 °C after 60 min, was found to be 63% which increased to 95% upon the addition of K2S2O8 and H2O2 to the reaction mixture. The degradation of MR followed pseudo-first-order-kinetics. R2 value was found to be 0.93266. The value of k1 was found to be 3.46 × 10-3 min-1. These findings indicates that Bi-ZnO is an effective photocatalyst for the degradation of MR.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145176097","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

New Picolylamine Azo Pyrazolone Synthesis, Thermal Behavior, Spectroscopic, Computational and its Application in Sensitized Solar Cells. 新型吡咯胺偶氮吡唑酮的合成、热行为、光谱、计算及其在敏化太阳能电池中的应用。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-27 DOI: 10.1007/s10895-025-04451-3

Yousif K Zyara, Hussain J Mohammed

引用次数: 0

Rational Design of a 3D-printed Sensing Platform for On-site Measurement of Toluene Based on Cu(I) Complex. 基于Cu(I)配合物的三维打印甲苯现场测量传感平台的合理设计

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-26 DOI: 10.1007/s10895-025-04571-w

Shihan Xia, Sanfu Tong, Weihao Wang, Xiaole Chen, Weihao Li, Qianming Wang

{"title":"Rational Design of a 3D-printed Sensing Platform for On-site Measurement of Toluene Based on Cu(I) Complex.","authors":"Shihan Xia, Sanfu Tong, Weihao Wang, Xiaole Chen, Weihao Li, Qianming Wang","doi":"10.1007/s10895-025-04571-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04571-w","url":null,"abstract":"This study reports the rational design and synthesis of a novel stimuli-responsive fluorescent complex based on Cu(I) and 4-methylpyridine. The material exhibits a unique vapor-triggered fluorescence switching behavior: upon exposure to toluene vapor, its emission undergoes a significant bathochromic shift from 445 nm (blue) to 553 nm (yellow), accompanied by a distinct naked-eye-detectable blue-to-yellow colorimetric transition. Based on this effective molecular switching mechanism, we have developed a portable fluorescence detection platform featuring integrated excitation optics, long-pass filtration (λcut = 420 nm), and real-time spectral analysis software. This device achieves rapid (< 1 min) and selective quantification of trace toluene vapor with a detection limit of 4.45 ppm, demonstrating excellent anti-interference capability against relevant aromatic compounds such as benzene, benzaldehyde, paraxylene, orthoxylene or mesitylene and common organic solvents (e.g., ethanol, acetone, hexane) and potential environmental interferents (relative error < ± 5%). The sensing system exhibits remarkable reversibility and operational stability under ambient conditions (20-40 °C, RH 30-80%). This work establishes a promising strategy for on-site, real-time monitoring of hazardous volatile organic compound such as toluene, with significant implications for environmental surveillance, industrial safety, and point-of-care diagnostics.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149284","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

Optical and Computational Studies on a Triazine Derivative of Dual Fluorescence Enhancement/Superquenching Upon Nanoparticle Interactions. 纳米粒子相互作用下双荧光增强/超猝灭的三嗪衍生物的光学和计算研究。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-25 DOI: 10.1007/s10895-025-04474-w

Khloud M Elhalby, Ahmed H Mangood, Mahmoud A S Sakr, Ahmed A El-Barbary, El-Zeiny M Ebeid, Heba A El-Shekheby

{"title":"Optical and Computational Studies on a Triazine Derivative of Dual Fluorescence Enhancement/Superquenching Upon Nanoparticle Interactions.","authors":"Khloud M Elhalby, Ahmed H Mangood, Mahmoud A S Sakr, Ahmed A El-Barbary, El-Zeiny M Ebeid, Heba A El-Shekheby","doi":"10.1007/s10895-025-04474-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04474-w","url":null,"abstract":"Derivatives of 1,2,4-triazine have emerged as versatile scaffolds with broad pharmacological and biological potential, prompting deeper exploration of their optical behavior. In this study, we investigate the photophysical properties of a novel 1,2,4-triazine dye, 4-amino-6-(4-methoxyphenyl)-1,4,6,7 tetrahydrothieno [2,3-e] [1,2,4] triazine-3(2 H)-thione (Triazine I) with a focus on its interaction with noble metal nanoparticles. The synthesized dye was structurally characterized using FTIR, 1H-NMR, 13C-NMR, and mass spectrometry to confirm its purity and molecular structure. Silver (Ag-NPs) and gold (Au-NPs) nanoparticles were synthesized via a chemical reduction method and thoroughly characterized using UV-vis spectroscopy, TEM, DLS, Zeta Potential, and XRD, confirming their successful formation, stability, and crystalline nature. Spectroscopic investigations revealed solvent-dependent absorption and emission behavior of Triazine I, along with a dual fluorescence response in the presence of nanoparticles: superquenching by Ag-NPs via non-radiative decay enhancement, and fluorescence amplification by Au-NPs through radiative enhancement (MEF). These findings open promising avenues for using such systems in advanced fluorescence-based biosensing and immunoassays. Furthermore, DFT-based computational studies provided insights into molecular geometry, electronic transitions, and electrostatic potential, reinforcing experimental observations and guiding future molecular de sign. This integrated experimental-theoretical approach highlights Triazine I as a promising candidate for tunable optical applications, particularly in bioimaging and diagnostic platforms.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145137782","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

Determination of Trace Cu(II) Ions Using a Siraitia Grosvenorii Residue-derived Nitrogen-doped Carbon Dots-enabled Fluorescence Quenching Sensor. 利用罗汉果残基衍生的氮掺杂碳点荧光猝灭传感器测定痕量Cu（II）离子。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-25 DOI: 10.1007/s10895-025-04458-w

Mengying Wu, Xiyang Huang, Zhouquan Li, Xiang Gan, Yumei Zheng, Hui Tang, Jingwei Xiong, Xiaoli Yang, Dongye Yang, Lizhen Zhang, Weiyuan Liang, Hongtao Li

{"title":"Determination of Trace Cu(II) Ions Using a Siraitia Grosvenorii Residue-derived Nitrogen-doped Carbon Dots-enabled Fluorescence Quenching Sensor.","authors":"Mengying Wu, Xiyang Huang, Zhouquan Li, Xiang Gan, Yumei Zheng, Hui Tang, Jingwei Xiong, Xiaoli Yang, Dongye Yang, Lizhen Zhang, Weiyuan Liang, Hongtao Li","doi":"10.1007/s10895-025-04458-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04458-w","url":null,"abstract":"Bio-based fluorescent carbon dots (CDs) have emerged as promising material for advanced sensing applications due to their exceptional sensitivity, stability and biocompatibility. However, it was till constrained by ion selectivity and solution suitability especially in physiological solutions (e.g., PBS). Herein, a novel nitrogen-doped carbon dots (N-CDs) fluorescence quenching sensor derived from Siraitia grosvenorii (named \"Luo Han Guo\" in China) residue was developed for selective determination of trace Cu(II) ions in different solutions. The N-CDs were synthesized through a one-step hydrothermal process utilizing agricultural waste as carbon precursor and urea as the nitrogen source, demonstrating an eco-friendly synthesis strategy. The developed sensor exhibited remarkable anti-interference capability against acid, base, salt and various metal ions while maintaining excellent photostability and biocompatibility (cell viability > 75% at 1000 ug/mL). With a limit of detection (LOD) of 0.13 µmol/L, the system showed superior sensitivity compared to conventional methods. Furthermore, the sensor demonstrated strong universality across solution types and, more importantly, suitability for trace Cu²⁺ quantification in physiological solutions. Experimental results demonstrated that the fluorescence quenching process resulted from the binding of Cu²⁺ to amino groups on CDs, forming complexes through a non-radiative photoinduced electron transfer (PET) mechanism. This PET effect synergizes with static quenching, underlying the high selectivity and sensitivity of N-CDs for Cu²⁺ detection. The integration of novel phytochemical-based sensing materials with a fluorescence quenching mechanism enables highly selective detection of trace Cu²⁺ for environmental and biomedical applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145137779","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

Correction: A Bromobenzoyl Pyridine Photosensitizer with Suppressed Phosphorescence for Efficient ROS-Based Photodynamic Therapy. 更正：一种抑制磷光的溴苯甲酰吡啶光敏剂，用于有效的ros光动力治疗。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-20 DOI: 10.1007/s10895-025-04560-z

Sixu Wang

引用次数: 0

A Selective Fluorescent Probe with Pyridine-Imidazole Moiety for Detecting Glutathione in Pediatric Cellular Colorectal Injury. 吡啶-咪唑选择性荧光探针检测小儿细胞性结直肠损伤中的谷胱甘肽。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-20 DOI: 10.1007/s10895-025-04569-4

Li-Mei Tian, Wen Yang, Jing-Yi Shi

引用次数: 0

Accelerated Chemical Space Generation of High Molar Extinction Organic Sensitizers via Machine Learning. 利用机器学习加速高摩尔消光有机敏化剂的化学空间生成。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-18 DOI: 10.1007/s10895-025-04540-3

Sadaf Noreen, Mamduh J Aljaafreh

{"title":"Accelerated Chemical Space Generation of High Molar Extinction Organic Sensitizers via Machine Learning.","authors":"Sadaf Noreen, Mamduh J Aljaafreh","doi":"10.1007/s10895-025-04540-3","DOIUrl":"https://doi.org/10.1007/s10895-025-04540-3","url":null,"abstract":"The development of organic sensitizers with high molar extinction (ε) coefficients is important for various light absorption applications. To accelerate the discovery of such compounds, a machine learning (ML) analysis has been applied to explore their vast chemical space. A dataset of 676 organic chromophores is analyzed by designing their electronic, topological, and molecular descriptors to predict their ε. Among the 10 tested ML models, Gradient Boosting, Random Forest, Extra Trees, and Historical Gradient Boosting regressors show good correlation with their experimental and predicted values (R2 ≈ 0.70). Their Shapley Feature importance reveals that Subgraph Density of Secondary Carbon-Hydrogen (SdsCH) and logarithm of the partition coefficient- an Der Waals Surface Area Descriptor 8 (SlogP_VSA8) Descriptors have a significant impact on model performance. Additionally, by leveraging breaking retrosynthetic analysis, 3288 novel structures with potential high ε have been synthesized to validate their feasibility through dimensionality reduction analysis. Their synthetic accessibility (SA) calculations identify the top structures for their experimental synthesis in the future. Interestingly, the findings indicate that new structures with SMILES lengths of 35-80 units can exhibit the highest SA.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145081016","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

Long-Wavelength Emitting Fluorescent Probe for Real-Time Peroxynitrite Imaging in Living Cells. 活细胞中实时过氧亚硝酸盐成像的长波发射荧光探针。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-18 DOI: 10.1007/s10895-025-04484-8

Shaozhu Li, Yanmeng Zhu, Qi Dong, Shuqi Xiong, Rufang Zhang, Jiajia Yu, Mengying Zhang, Jun Tang

引用次数: 0

Structural, Morphological, Thermal, and Photophysical Insights into a Highly Fluorescent Symmetrically Functionalized Perylene Diimide. 结构，形态，热和高荧光对称功能化苝二亚胺的光物理见解。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-18 DOI: 10.1007/s10895-025-04539-w

Merve Zurnaci

{"title":"Structural, Morphological, Thermal, and Photophysical Insights into a Highly Fluorescent Symmetrically Functionalized Perylene Diimide.","authors":"Merve Zurnaci","doi":"10.1007/s10895-025-04539-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04539-w","url":null,"abstract":"Perylene diimide (PDI) derivatives have garnered significant attention in organic electronics and optoelectronics due to their high fluorescence yields, exceptional electrical and thermal properties, and extensive π-conjugated systems. This study synthesized and characterized a new highly fluorescent symmetrical perylene diimide derivative in detail. The structural properties of the synthesized compound were analyzed using spectroscopic techniques (FT-IR, ¹H NMR, ¹³C NMR, and LC-MS/MS), while its morphology was examined via scanning electron microscopy (SEM). Thermal stability was evaluated using thermogravimetric analysis (TGA). The photophysical properties of the synthesized PDI derivative were assessed, revealing absorption maxima at 350 nm and 536 nm, along with an emission maximum at 566 nm and 0.38 quantum yield in a DMSO medium, attributed to its highly π-conjugated structure. Additionally, the solid-state fluorescence properties of the compound were investigated through fluorescence microscopy. These findings contribute to developing next-generation fluorescent materials, demonstrating their potential for applications in optoelectronics and advanced photonic technologies.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145080536","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