Journal of Fluorescence最新文献_第7页

Development of Red Dye Based Optical Filters for Blocking Harmful Ultraviolet Radiation. 阻挡有害紫外线辐射的红色染料滤光片的研制。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-03 DOI: 10.1007/s10895-025-04527-0

Mohammed El-Amine Nouairi, Mohammed Freha

引用次数: 0

Memory Element and Data Security Platforms Using Self-Sufficient Molecular Assembly Through Concentration Reliant Photo-Switching: A Latent Trait of Semicarbazone Schiff Base. 利用浓度依赖光开关的自给分子组装的存储元件和数据安全平台：氨基脲希夫碱的潜在特性。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-03 DOI: 10.1007/s10895-025-04524-3

Subham Chattopadhyay, Piyush Singh, Subham Das, Sujit Kumar Ghosh

{"title":"Memory Element and Data Security Platforms Using Self-Sufficient Molecular Assembly Through Concentration Reliant Photo-Switching: A Latent Trait of Semicarbazone Schiff Base.","authors":"Subham Chattopadhyay, Piyush Singh, Subham Das, Sujit Kumar Ghosh","doi":"10.1007/s10895-025-04524-3","DOIUrl":"https://doi.org/10.1007/s10895-025-04524-3","url":null,"abstract":"Logic operations at the molecular level are anticipated to play key role in data processing and storage in the future. However, most of these chemical systems rely on foreign chemical inputs. In contrast, opto-chemical logic devices are simpler to implement due to the ease of optical changes compared to pure chemical ones. In this work, a semicarbazone Schiff base derivative (E)-2-(4-(diethylamino)-2-hydroxybenzylidene)hydrazine-1-carboxamide (DHHC) has been developed as a photo-switch, enabling the design of multifunctional logic systems, most importantly, independent of foreign chemical inputs. The mechanism operates based on the concentration-driven optical properties of DHHC, where native inputs, such as methanol and DHHC itself, influence its optical behaviour by altering system concentrations. As confirmed by 2D contour plots, the distinct emission profiles of lower and higher concentrations of DHHC are strictly governed by their respective excitations. These self-sufficient optical properties of DHHC were leveraged to design several interconvertible simple and complex logic gates, including INHIBIT and IMPLICATION gates. Additionally, the photo-switching ability of DHHC was utilized to generate a memory device with a feedback loop mechanism, with methanol and DHHC acting as \"reset\" and \"set\" conditions, respectively, demonstrating an infinitely recyclable \"Erase-Read-Write-Read\" memory function. The fluorescence responses of DHHC were also employed to develop two potentially highly secured molecular keypad pattern locks, functioning with purely opto-chemical passwords. This work showcases the hidden potential of a light-responsive Schiff base as a multifunctional, reconfigurable molecular logic device, advancing the development of molecular data processing and data security elements.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956704","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

In-Silico Evaluation of 4-(2,4-difluorophenyl)-2-(2-(3-(trifluoromethyl)benzylidene)hydrazinyl)thiazole. 4-（2,4-二氟苯基）-2-（2-（3-（三氟甲基）苄基）肼基）噻唑的硅内评价。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-02 DOI: 10.1007/s10895-025-04450-4

Engin Yilmaz, Alaaddin Çukurovali

引用次数: 0

Second-order Calibration-assisted Excitation-emission Matrix Fluorescence Detection of Multi-class Mycotoxins in Grape, Wine and Raisin for Food Safety Assessment. 二级校准辅助激发-发射矩阵荧光检测葡萄、葡萄酒和葡萄干中多类真菌毒素的食品安全评价

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-02 DOI: 10.1007/s10895-025-04490-w

Xie Shuangnan, Tang Chao, Jia Hongtao, Shen Qi, He Weizhong, Deng Shiyi, Tang Jing, Liu Zhi, Wang Cheng

{"title":"Second-order Calibration-assisted Excitation-emission Matrix Fluorescence Detection of Multi-class Mycotoxins in Grape, Wine and Raisin for Food Safety Assessment.","authors":"Xie Shuangnan, Tang Chao, Jia Hongtao, Shen Qi, He Weizhong, Deng Shiyi, Tang Jing, Liu Zhi, Wang Cheng","doi":"10.1007/s10895-025-04490-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04490-w","url":null,"abstract":"Mycotoxin in grape and its products (wine, raisin) is a widely concerned issue of food safety, it closely associated with consumers' health. In this study, an analytical strategy by combining second-order calibration method with excitation-emission matrix (EEM) fluorescence detection followed photo derivatization (PD) was explored for rapid and sensitive analysis of aflatoxin B1 (AFB1), ochratoxin A (OTA), zearalenone (ZEA) in grape, raisin and wine. Except simple solvent extraction by ethyl acetate and concentration by vacuum distillation, samples don't need other complicated treatment steps any more. With the aid of predominant second-order advantages of alternative trilinear decomposition (ATLD) algorithm, 'pure' spectra and quantitative signals of targeted mycotoxins can be resolved from the heavily interfered EEM profile of sample even in the presence of spectral overlaps and unknown backgrounds. The recoveries of AFB1, OTA and ZEA in four kinds of samples are in the range of 90% to 110%, the limits of detection (LODs) were low to 0.1 μg kg-1, 0.5 μg kg-1 and 0.8 μg kg-1, respectively. This analytical strategy may be as an alternative method for improving mycotoxin analysis in complex food matrices and ensuring food safety in grape industry.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956651","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

A Selective Pyridinedicarbohydrazide-based "naked-eye" Fluorescent Probe for Detecting Cu²⁺ Ions in Aqueous Solutions. 选择性吡啶二羰基“裸眼”荧光探针用于检测水溶液中的Cu2+离子。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-02 DOI: 10.1007/s10895-025-04473-x

Ali Zamani, Mahmood Tajbakhsh, Yaghoub Sarrafi

{"title":"A Selective Pyridinedicarbohydrazide-based \"naked-eye\" Fluorescent Probe for Detecting Cu2+ Ions in Aqueous Solutions.","authors":"Ali Zamani, Mahmood Tajbakhsh, Yaghoub Sarrafi","doi":"10.1007/s10895-025-04473-x","DOIUrl":"https://doi.org/10.1007/s10895-025-04473-x","url":null,"abstract":"A novel fluorescent and colorimetric probe (L3), based on 2,6-pyridinedicarbohydrazide, was rationally designed and synthesized for the highly selective and reversible detection of Cu²⁺ ions. The structural and optical properties of the probe were comprehensively characterized by FT-IR, ¹H NMR, UV-Vis spectroscopy, fluorescence analysis, ESI⁺-MS, and elemental analysis. The probe L3 displayed a high selectivity, high sensitivity and quick response to Cu2+ ions in the presence of other competing cations including Ba2+, K+, Pb2+, Hg2+, Al3+, Zn2+, Fe2+, Tl+, Mg2+, Ni2+, Nd3+, Fe3+, Ag+, Ca2+, Cs+, Co2+, Cd2+, Sr2+, and Mn2+ ions). Upon interaction with Cu²⁺, probe L3 exhibited distinct optical responses, including significant fluorescence quenching, a notable redshift in the UV-Vis spectrum, and a rapid, visible color change from colorless to greenish-yellow under aqueous conditions and across a broad pH range. The detection limit was calculated to be as low as 2.28 × 10⁻⁹ M, with an association constant (Ka) of 2.2 × 10¹¹ M⁻², indicating strong binding affinity. Job's plot and ¹H NMR titration confirmed a 1:2 stoichiometric complex formation between L3 and Cu²⁺ ions. The probe also exhibited excellent reversibility, as confirmed by fluorescence recovery upon adding Na₂EDTA, suggesting its suitability for real-time and reusable sensing applications. Furthermore, the practical utility of L3 was demonstrated using test strips for Cu²⁺ detection in aqueous environments, and its effectiveness was further validated in real water samples, including tap water, drinking water, and seawater, achieving recovery rates up to 99.2%. These findings suggest that L3 is promising for the sensitive, rapid, and cost-effective monitoring of copper ions in environmental and drinking water systems.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956681","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 Photocatalytic Behavior of Sonochemically Synthesized MgFe₂O₄/BiOBr Nanocomposites for Light-Induced Degradation of Organic Dyes. 声化学合成MgFe2O4/BiOBr纳米复合材料光催化降解有机染料的光学行为

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-01 DOI: 10.1007/s10895-025-04469-7

Rusul A Ghazi, Mushtaq Ali Hussein, Ali Abbasi, Haneen Majed Saheb, Shaymaa Awad Kadhim, Hossein Khojasteh, Masoomeh Sadat Fini, Kamran Heydaryan

引用次数: 0

A Turn-on Fluorescent Chemical Sensor Based on Imidazole-Schiff Base Structure for Al³⁺ Detection as Well as Applications. 基于咪唑-希夫碱结构的Al3+荧光传感器及其应用

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-01 DOI: 10.1007/s10895-025-04551-0

Jing Wang, Lu Ren, Yanqi Liu, Ping Wang, Yujia Chen, Dawei Zhang

{"title":"A Turn-on Fluorescent Chemical Sensor Based on Imidazole-Schiff Base Structure for Al3+ Detection as Well as Applications.","authors":"Jing Wang, Lu Ren, Yanqi Liu, Ping Wang, Yujia Chen, Dawei Zhang","doi":"10.1007/s10895-025-04551-0","DOIUrl":"https://doi.org/10.1007/s10895-025-04551-0","url":null,"abstract":"In this study, a novel imidazole-Schiff base fluorescent probe, EBI, was designed and synthesized. The molecular structure of EBI was systematically characterized by FT-IR, 1H NMR, 13C NMR and HR-MS. This study found that this probe could exhibit highly sensitive and selective fluorescence responses to Al3+ in an EtOH/H2O (1:1 v/v) mixed solvent. The optical properties of EBI were systematically investigated using fluorescence spectroscopy and UV-Vis absorption spectroscopy. The results showed that the binding of EBI with Al3+ could trigger a significant fluorescence enhancement effect, reaching a stable state within approximately 10 min, and that the interference from other common metal ions could be ignored. To further clarify its mechanism of action, various methods, including the Job plot, Benesi-Hildebrand experiment, 1H NMR titration, and DFT calculation, were employed to thoroughly investigate the coordination behavior of EBI with Al3+. The study demonstrated that EBI and Al3+ formed a complex in a 1:1 molar ratio, with a detection limit (LOD) of 74.75 nM. The fluorescence quenching of EBI-Al3+ by PO43- was also evident in the selected anion range. These results, based on the fluorescence \"OFF-ON\" mechanism, enable us to construct various types of molecular logic gates. This sensing system is capable of on-site, trace-level, real-time, and rapid detection of Al3+.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956712","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

Alkyl Chain-Tuned Fluorescent Sensors: Phenanthroimidazole Derivatives for Selective Detection of Nitroaromatic Compounds Containing Phenolic Group. 烷基链调谐荧光传感器：用于选择性检测含酚基硝基芳香族化合物的苯并咪唑衍生物。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-01 DOI: 10.1007/s10895-025-04549-8

Mohd Tameem, Abid Ali, Ruby Ahmed, Farman Ali, Nagmajahan, Musheer Ahmad

{"title":"Alkyl Chain-Tuned Fluorescent Sensors: Phenanthroimidazole Derivatives for Selective Detection of Nitroaromatic Compounds Containing Phenolic Group.","authors":"Mohd Tameem, Abid Ali, Ruby Ahmed, Farman Ali, Nagmajahan, Musheer Ahmad","doi":"10.1007/s10895-025-04549-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04549-8","url":null,"abstract":"In this paper, a series of phenanthroimidazole derivatives 2-(1 H-indol-3-yl)-3a,11b-dihydro-1 H-phenanthro[9,10-d]imidazole(NZ1), 1-hexyl-2-(1 H-indol-3-yl)-3a,11b-dihydro-1 H-phnanthro[9,10-d] imidazole (NZ2) and 1-hexyl-2-(1-hexyl-1 H-indol-3-yl)-1 H-phenanthro[9,10-d] imidazole (NZ3) were synthesized for selective sensing of nitroaromatic compounds used in explosives. The structure was confirmed through nuclear magnetic resonance (NMR) spectroscopy, infrared and single crystal x-ray diffraction data. To ensure the molecules suitability for sensing application, several photophysical characterization were performed. Though these molecules differ structurally with different substitution of alkyl chains, the absorption spectra remain approximately same which signifies no significant influence of alkyl chain addition. The molecules (NZ1-NZ3) are fluorescent in blue region with peak emission wavelengths at 412 nm, 397 nm, and 395 nm respectively, the variation in emission wavelength suggest the contribution of charge transfer state, due to the fact that indole here work as a donor and phenanthrene imidazole as an acceptor moiety. The Crystal structure of NZ1-picric acid complex was used as a base model to understanding the mechanism of fluorescence quenching. Time-resolved fluorescence measurements reveal that the quenching is dynamic. The decrease in LOD from NZ1 to NZ3 with respect to alkyl substitution suggest that the alkyl chain enhance the sensing ability of the compound probably by increasing solubility and interaction with solvent and nitroaromatic and making NZ3 as an efficient sensor.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956777","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

Potential Application of Carbon Dots for Sustainable Agriculture: Current Challenges and Future Prospects. 碳点在可持续农业中的潜在应用：当前挑战与未来展望。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-01 DOI: 10.1007/s10895-025-04508-3

Nisha Kumari, Karuppannan Raja

{"title":"Potential Application of Carbon Dots for Sustainable Agriculture: Current Challenges and Future Prospects.","authors":"Nisha Kumari, Karuppannan Raja","doi":"10.1007/s10895-025-04508-3","DOIUrl":"https://doi.org/10.1007/s10895-025-04508-3","url":null,"abstract":"The depletion of arable land, water scarcity, frequent climate fluctuations, the onset of the COVID-19 pandemic, inefficiencies in pesticide usage, and the Ukraine-Russia conflict, which disrupted global supplies of fertilisers, have collectively heightened crop strain and reduced agricultural productivity. In this regard, to overcome these agriculture problems, adopting a sustainable approach for agricultural production plays a significant role in ensuring global food security. Carbon dots, a novel member of the carbon-based nanomaterial's family with extraordinary properties such as chemical stability, water solubility, low cytotoxicity, small size, biocompatibility, and photoluminescence, have recently attracted attention in agriculture sectors. The abundant hydrophilic functional groups on the surface of carbon dots, together with their small size and structural features, provide several advantages, such as increased crop growth, improved photosynthesis, stress tolerance, and accelerated seed germination. Carbon dots have also shown impressive advantages in nutrient uptake, and acting as sensors for pesticides, herbicides, and nutrients. Furthermore, carbon dots facilitate precise gene delivery into plant cells creating opportunities for genetic improvement and also enhance post-harvest preservation. This review highlights the potential of carbon dots in the field of agriculture, covering their classification, source of synthesis, and their diverse applications in the field of agriculture. While their potential is vast, further research is essential to address toxicological concerns and environmental impacts to ensure their safe and effective integration into agricultural system. Lastly, the limitations and future perspectives are outlined, which need to be focused on promoting the potential application of carbon dots in the agricultural sector.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956671","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

Development and Application in Stroke of an Aldehyde nanoparticle-based Amplified Luminescent Proximity Homogeneous Assay for Rapid Quantitative Measurement of Serum Copeptin. 基于醛纳米粒子的放大发光接近均相法快速定量测定血清Copeptin的研制及应用。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-08-30 DOI: 10.1007/s10895-025-04493-7

Yaofan Lu, Zixuan Zhou, Zikun Ni, Fuyuan Ma, Yunbo Zhu, Lili Liu, Xiumei Zhou, Xueqin Zhao, Yuan Qin, Biao Huang, Fan Sun

{"title":"Development and Application in Stroke of an Aldehyde nanoparticle-based Amplified Luminescent Proximity Homogeneous Assay for Rapid Quantitative Measurement of Serum Copeptin.","authors":"Yaofan Lu, Zixuan Zhou, Zikun Ni, Fuyuan Ma, Yunbo Zhu, Lili Liu, Xiumei Zhou, Xueqin Zhao, Yuan Qin, Biao Huang, Fan Sun","doi":"10.1007/s10895-025-04493-7","DOIUrl":"https://doi.org/10.1007/s10895-025-04493-7","url":null,"abstract":"The timing of onsets is a critical factor in preventing disability in stroking patients. Developing a faster and more accurate diagnostic method is essential. Copeptin, as a stable surrogate for arginine vasopressin, has emerged as a novel and reliable serum biomarker for stroke. Therefore, to facilitate prompt stroke detection, this work attempts to develop a quick and precise technique for identifying copeptin in human serum. For homogenous analysis, a novel amplified luminescence method based on aldehyde was created. This method employs the double antibody sandwich technique to detect copeptin levels in human serum. Serum samples from stroke patients, individuals with stroke-like symptoms but no confirmed stroke, and healthy controls were analyzed and compared. The detection time was shortened to 10 min. Stroke patients exhibited significantly higher copeptin concentrations compared to patients with stroke-like symptoms but no confirmed stroke diagnosis. Furthermore, both groups of patients demonstrated significantly elevated copeptin concentrations relative to healthy subjects. The combined diagnostic approach using copeptin and homocysteine (Hcy) markedly enhanced diagnostic efficiency. Copeptin-AlphaLISA, an amplified luminous proximity homogenous assay, was successfully developed. Serum copeptin demonstrates significant potential in the rapid and combined diagnosis of stroke.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144956748","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