Journal of Fluorescence最新文献

Red Emitting Fluorescent EuDPA Complex as a Probe for the Detection of Serotonin, A Neurotransmitter. 红色荧光EuDPA复合物作为检测神经递质血清素的探针。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-18 DOI: 10.1007/s10895-025-04400-0

N S Vijila, Merin K Abraham, Greeshma Rajeevan, Geneva Indongo, Arathy B Kala, Sony George

引用次数: 0

Red-Light-Driven Photocatalysis with NI-BODIPY-Fullerene Systems for Organic Transformations. ni - bodipy -富勒烯体系的红光驱动光催化有机转化。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-18 DOI: 10.1007/s10895-025-04391-y

Ezel Öztürk Gündüz, Ümmügülsüm Büyükpolat, Elif Okutan

{"title":"Red-Light-Driven Photocatalysis with NI-BODIPY-Fullerene Systems for Organic Transformations.","authors":"Ezel Öztürk Gündüz, Ümmügülsüm Büyükpolat, Elif Okutan","doi":"10.1007/s10895-025-04391-y","DOIUrl":"https://doi.org/10.1007/s10895-025-04391-y","url":null,"abstract":"The direct use of low-energy red light for photochemical processes is attractive from a synthetic perspective but challenging to implement in practice. BODIPY-based photosensitizers (PSs) show considerable promise in this area due to their tunable photophysical properties. This study aims to explore the use of mono- and bis-adducts of heavy atom-free NI-BODIPY-fullerene triads, which strongly absorb red light in the 560 to 660 nm range, in red light-irradiated photocatalytic reactions. NI-BODIPY-fullerene photosensitizers possess the ability to generate singlet oxygen (¹O₂), making them effective photosensitizers for the photocatalytic conversion of 1,5-dihydroxynaphtalene (DHN) to juglone and the photooxidation of thioanisole to methyl phenyl sulfoxide. Our photocatalysts are effective, with activities comparable to or even higher than those of readily available commercial systems, achieving 100% conversion of thioanisole to methyl phenyl sulfoxide within 2 h. This study highlights the potential of distyryl-NI-BODIPY-fullerene derivatives as promising photosensitizers/photocatalysts for applications in organic transformations.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325942","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

Safe Toys, Safer Kids: Eco-Derived Nano-Carbon Quantum Dots (CQDs) for Detection of Heavy Metal (Pb²⁺) Ion in Children's Toys. 安全玩具，儿童安全：生态衍生纳米碳量子点（CQDs）检测儿童玩具中重金属（Pb2+）离子。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-17 DOI: 10.1007/s10895-025-04386-9

Chnar Z Mahmud, Nabil A Fakhre

{"title":"Safe Toys, Safer Kids: Eco-Derived Nano-Carbon Quantum Dots (CQDs) for Detection of Heavy Metal (Pb2+) Ion in Children's Toys.","authors":"Chnar Z Mahmud, Nabil A Fakhre","doi":"10.1007/s10895-025-04386-9","DOIUrl":"https://doi.org/10.1007/s10895-025-04386-9","url":null,"abstract":"In this research, the carbon quantum dots (CQDs) with a particle size of 8.0 nm, quantum yield (17.8) and long period of stability 60 days were prepared under a simple, eco-friendly, low-toxic and low-cost one-step hydrothermal method by employing biomass rheum ribes (R. ribes) as precursors for detection purpose. The widely recognized heavy metal element is lead (Pb2⁺), and the pollution it causes has received considerable attention. Therefore, it is both essential and extremely difficult to develop uncomplicated and efficient techniques for the detection of lead ions (Pb2⁺) in kids' toy samples. The study focused on the detection of lead ions (Pb2+) in kids' toy samples. The presence of heavy metals in toys poses significant health risks such as cancer, kidney disorder, behavioural disorders, increased aggression bone and brain tissues, due to their potential toxicity and bioaccumulation. Lead is a global priority pollutant. The investigated results were processed by a fluorescence spectrophotometer under optimum conditions with excitation and emission wavelengths of 330nm and 406nm, respectively. Fluorescence of CQDs was quenched efficiently and sensitively by lead (Pb2+) ions, throughout some other common metal ions. The linear range is wide (0.01-21.0μg/mL) with the detection limit (0.00974μg/mL), limit of quantification (0.0325μg/mL), and (R2 = 0.9939). The recovery of Pb2⁺ ions, which cause quenching of fluorescence intensity, was mostly more than 90% (n = 3). The results show high contents of Pb2+ in kids' toy samples. The concentration of Pb2⁺ in the samples under study was over 100μg/mL after multiplying the corresponding dilution factors. The intense quenching effect of carbon dots can be attributed to the efficient binding of lead ions on their surface. Later, it was proposed and established that aggregation-induced quenching is the working principle of carbon dots' interaction with Pb2⁺ ions.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144317072","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

Fluorescent Metal-Organic Frameworks for the Detection of Explosive Materials: Current Trends and Future Prospects. 用于检测爆炸性材料的荧光金属-有机框架：当前趋势和未来展望。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-16 DOI: 10.1007/s10895-025-04390-z

Chintan Parmar, Riya Khandelwal, Mahesh Vasava

{"title":"Fluorescent Metal-Organic Frameworks for the Detection of Explosive Materials: Current Trends and Future Prospects.","authors":"Chintan Parmar, Riya Khandelwal, Mahesh Vasava","doi":"10.1007/s10895-025-04390-z","DOIUrl":"https://doi.org/10.1007/s10895-025-04390-z","url":null,"abstract":"Metal-organic frameworks (MOFs) show exceptional potential for the selective detection of hazardous analytes, including explosives, chemical warfare agents, industrial toxins, and other dangerous forensic analytes. Traditional instrumental techniques for trace explosive detection are often costly and inaccessible, creating a need for alternative solutions. MOFs offer a feasible approach through a fluorescence quenching mechanism, leveraging their tunable porosity and extensive surface area to interact specifically with nitroaromatic compounds/explosives., enabling detectable changes in fluorescence. This innovative methodology shows great potential to amplify explosive detection technologies' accessibility and efficiency. However, various challenges remain the same, such as enhancing selectivity, limit of detection, and operational stability of MOFs. This review highlights the recent advancements in MOFs-based detection strategies for nitro compounds and explosives, highlighting their advantages, challenges, limitations, and future scopes without focusing on any specific compound or detection mechanism. By addressing these limitations, MOFs can further strengthen their role in enhancing rapid and reliable detection methods for hazardous analytes.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144302235","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, Characterization, and Photoluminescence Properties of Binuclear Co(ll), Ni(ll) and Cu(ll) Schiff Base Complexes with μ -1, 1 Azide Bridges. 带有μ - 1,1叠氮化物桥的双核Co（ll）、Ni（ll）和Cu（ll）席夫碱配合物的合成、表征及光致发光性能

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-16 DOI: 10.1007/s10895-025-04406-8

Jocelyn N Kuate, Maurice Kuate, Awawou G Paboudam, Adrien P Yepseu, Viorel Cîrcu, Sunder N Dhuri, Peter T Ndifon

{"title":"Synthesis, Characterization, and Photoluminescence Properties of Binuclear Co(ll), Ni(ll) and Cu(ll) Schiff Base Complexes with μ -1, 1 Azide Bridges.","authors":"Jocelyn N Kuate, Maurice Kuate, Awawou G Paboudam, Adrien P Yepseu, Viorel Cîrcu, Sunder N Dhuri, Peter T Ndifon","doi":"10.1007/s10895-025-04406-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04406-8","url":null,"abstract":"Three new Co(II) (1), Ni(II) (2), and Cu(II) (3) binuclear complexes with versatile azide bridges and Schiff base derived from 2-hydroxy-1-naphthaldehyde and 2-aminothiophenol have been synthesized. Compounds 1-3 were characterized using various techniques, including microanalysis (CHNS), molar conductance, FTIR, UV-visible, 1H-NMR, mass spec, photoluminescence (PL) spectroscopy, thermogravimetric analysis (TGA-DTG), scanning electron microscopy (SEM) and Energy dispersive X-ray (EDX) techniques. Molar conductance values of the newly synthesized complexes indicate that the complexes are electrolytes in solution. Spectroscopic results suggest that the Schiff base acts as a tridentate ligand, bonding to the metal using imino nitrogen, thiol sulphur, and hydroxy oxygen atoms. Upon the incorporation of the azide pseudohalide, the µ -1, 1 bridge are proposed for all the complexes. Electronic spectra of 1-3 suggest an octahedral environment around the metal ions. Schiff base exhibited fluorescence originating from intra-ligand ( <math> <mrow><mrow><mi>π</mi></mrow> <mo>→</mo> <msup> <mrow><mrow><mi>π</mi></mrow> </mrow> <mrow><mrow></mrow> <mo>∗</mo></mrow> </msup> </mrow> </math> ) transitions with a quantum yield value of (9 ± 1) %, while the metal complexes exhibited reduced photoluminescence intensity and quantum yield (0.5 - 3.80%) relative to the Schiff base. These results suggest that the Schiff base has a specific recognition for transition metals. It can be used as a turn-off fluorescence sensor specifically for Cu2+ ions with a fluorescence quenching efficiency of (94 ± 2) %.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144309980","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

Construction of FRET-based CDs@RBH Ratiometric Fluorescent Probe for Cu²⁺ Sensing. 基于fret的CDs@RBH比例荧光探针Cu2+传感的构建

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-14 DOI: 10.1007/s10895-025-04398-5

Xuemei Dong, Zhongfei Hu, Xuan Xiao, Keying Zhang, Yujie Ding

{"title":"Construction of FRET-based CDs@RBH Ratiometric Fluorescent Probe for Cu2+ Sensing.","authors":"Xuemei Dong, Zhongfei Hu, Xuan Xiao, Keying Zhang, Yujie Ding","doi":"10.1007/s10895-025-04398-5","DOIUrl":"https://doi.org/10.1007/s10895-025-04398-5","url":null,"abstract":"Excessive Cu2+ levels pose severe threats to human health and ecosystems, necessitating sensitive and selective detection methods. A novel ratiometric fluorescent probe (CDs@RBH) based on fluorescence resonance energy transfer (FRET) was developed through electrostatic assembly. This nanoplatform employs carbon quantum dots (CDs) as the energy donor and rhodamine hydrazide (RBH) as the acceptor. Upon Cu2+ addition, the spirolactam ring of RBH opens, triggering a distinct UV-Vis absorption peak at 550 nm, which overlaps with the emission spectrum of CDs (450 nm), enhancing FRET efficiency. This mechanism enables dual-signal readout: the fluorescence intensity of CDs at 450 nm decreases, while the RBH-Cu2+ emission at 575 nm increases, allowing for precise ratiometric detection. The probe exhibits high selectivity and exceptional sensitivity, with a detection limit (LOD) of 0.65 μM and quantification limit (LOQ) of 2.09 μM. Practical applications in tap water samples demonstrate excellent recovery rates (96-108%). This work presents a straightforward synthesis method, environmental stability, and dual-channel signal verification for detection, making it a promising tool for real-world Cu2+ monitoring in environmental and biological systems.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293852","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-situ Visualization of Level 3 LFPs Using a Lipophilic Red AIE Fluorescent Probe with a D-A Structure. 用D-A结构的亲脂性红色AIE荧光探针原位可视化3级lfp。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-14 DOI: 10.1007/s10895-025-04397-6

Qi Guo, Liqin Lu, Jiansen Wen, Guoxin Zhuang

{"title":"In-situ Visualization of Level 3 LFPs Using a Lipophilic Red AIE Fluorescent Probe with a D-A Structure.","authors":"Qi Guo, Liqin Lu, Jiansen Wen, Guoxin Zhuang","doi":"10.1007/s10895-025-04397-6","DOIUrl":"https://doi.org/10.1007/s10895-025-04397-6","url":null,"abstract":"Fingerprints are among the most commonly encountered forms of forensic evidence. However, current databases require relatively complete fingerprints to extract sufficient level 2 features for individual identification, thereby limiting the recognition of partial latent fingerprints (LFPs) collected from crime scenes. Therefore, visualizing level 3 features of LFPs (such as width, spacing, and distribution of ridge and pore) is of critical importance. In response to this challenge, this study developed a near-infrared AIE fluorescent probe (D-TPA-A-TXO) with a D-A structure. In ethanol/water binary solvents, D-TPA-A-TXO enabled rapid and distinct in-situ visualization of level 3 LFPs features across various substrates. Owing to its lipophilic nature, D-TPA-A-TXO rapidly dissolved from the solution into the lipid components of LFPs and continuously aggregated. Through the aggregation-induced emission (AIE) effect, high-resolution images of level 3 LFPs features could be directly captured by a standard camera. This advancement provides crucial technical support for enhancing the matching capability of partial fingerprints in future criminal investigations.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293853","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

Predicting the Experimental Emission Spectra of Fluorescent Organic Semiconductors by Ensemble Machine Learning Analysis. 用集成机器学习分析预测荧光有机半导体的实验发射光谱。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-13 DOI: 10.1007/s10895-025-04395-8

Javed Akram, Kanwal Ranian, Sohail Nadeem, Mohammed T Alotaibi

{"title":"Predicting the Experimental Emission Spectra of Fluorescent Organic Semiconductors by Ensemble Machine Learning Analysis.","authors":"Javed Akram, Kanwal Ranian, Sohail Nadeem, Mohammed T Alotaibi","doi":"10.1007/s10895-025-04395-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04395-8","url":null,"abstract":"The development of efficient and sustainable organic semiconductors is crucial for modern power source technologies, as they have the potential to revolutionize the way we harness and utilize energy. For current study, the emission maxima (λE) of 450 organic semiconductors are collected to analyze by machine learning (ML) related Random Forest and gradient boosting regressors. It identifies HallKier, FPdensityMorgan, and SMR_VSA as key descriptors influencing model performance, enabling accurate prediction of λE in organic semiconductors. The results showed that these models were able to predict the λE of the organic semiconductors with high accuracy. Further analysis using SHapley Additive exPlanations (SHAP) values revealed that chemical similarity plays an important role to determine their experimental λE. Interestingly, the study found that the synthetic accessibility (SA) of the organic semiconductors, which refers to the ease with which they can be synthesized, ranged from 0 to 0.20. The highest SA was found to correspond to λE in the range of 350-370 nm, which is typically associated with ultraviolet (UV) to blue light emission. This finding suggests that organic semiconductors with high SA tend to have λE in the UV to blue region, which is important for applications such as OLEDs and OPVs.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144284958","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

pH-triggered Fluorescent-Active Antifouling Microgels Having Disulfide Crosslinked Core for the Application of Site-Specific REDOX-Active Drug Delivery to the Triple Negative Cancer Cells MDA-MB-231. 具有二硫交联核心的ph触发荧光活性防污微凝胶用于三阴性癌细胞MDA-MB-231的位点特异性氧化还原活性药物递送。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-13 DOI: 10.1007/s10895-025-04394-9

Moumita Shee, Sovan Lal Banerjee, Ankita Dey, Piyali Basak, Mahitosh Mandal, Amit Kumar Das, Narayan Chandra Das

引用次数: 0

Targeted Fluorescent Polysaccharide Platform for Solute Carrier Protein PCNA Detection and Cervical Squamous Cell Carcinoma Inhibition. 溶质载体蛋白PCNA检测及抑制宫颈鳞癌的靶向荧光多糖平台。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-13 DOI: 10.1007/s10895-025-04392-x

Mei Chen, Jinjuan Guo, Bing Xu

{"title":"Targeted Fluorescent Polysaccharide Platform for Solute Carrier Protein PCNA Detection and Cervical Squamous Cell Carcinoma Inhibition.","authors":"Mei Chen, Jinjuan Guo, Bing Xu","doi":"10.1007/s10895-025-04392-x","DOIUrl":"https://doi.org/10.1007/s10895-025-04392-x","url":null,"abstract":"Cervical squamous cell carcinoma (CSCC) remains one of the leading causes of cancer-related deaths among women. In advanced stages, treatment is often hindered by drug resistance and severe toxic side effects. The solute carrier protein PCNA, a key regulatory factor in the cystine/glutamate antiporter system, promotes tumor progression by maintaining cellular redox balance and inhibiting ferroptosis, making it a highly promising therapeutic target. In this study, a fluorescence detection platform based on a chitosan (CS)-modified cobalt(II) coordination polymer (CP1) was developed for the highly sensitive detection of PCNA activity. By loading cyclic peptide compound 1, the platform also achieves dual diagnostic and therapeutic functions (CS@CP1@1). Upon interaction with PCNA, the fluorescence intensity of the probe is significantly reduced due to the specific binding between CP1 and PCNA enabling precise fluorescence signal response. The developed sensing platform exhibits a broad linear detection range (0.5-60 U/L) and an ultra-low limit of detection (LOD = 0.14 U/L). Cell experiments further confirmed that this system effectively inhibits PCNA activity and significantly reduces the proliferation of CSCC cells, demonstrating promising therapeutic potential.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144284959","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