Luminescence最新文献_第3页

Toward Real-World Tetracycline Sensing: Label-Free Carbon Quantum Dot Fluorescence From Molecular Design to Matrix-Driven Challenges 走向现实世界四环素传感：从分子设计到矩阵驱动挑战的无标记碳量子点荧光。

IF 2.8 4区化学

Luminescence Pub Date : 2026-08-03 DOI: 10.1002/bio.70601

Kamel A. Saleh, M. M. Rekha, Irwanjot Kaur, Ahmed Aldulaimi, Nada Othman Kattab, Monika Verma, Rasulbek Eshmetov, Yodgor Kenjaev, Shayan Mahmoodi

{"title":"Toward Real-World Tetracycline Sensing: Label-Free Carbon Quantum Dot Fluorescence From Molecular Design to Matrix-Driven Challenges","authors":"Kamel A. Saleh, M. M. Rekha, Irwanjot Kaur, Ahmed Aldulaimi, Nada Othman Kattab, Monika Verma, Rasulbek Eshmetov, Yodgor Kenjaev, Shayan Mahmoodi","doi":"10.1002/bio.70601","DOIUrl":"10.1002/bio.70601","url":null,"abstract":"<div>\u0000 \u0000 Carbon quantum dot (CQD)-based label-free fluorescent sensing platforms have emerged as promising analytical approaches for the detection of tetracycline residues in food and environmental samples. This review summarizes recent advances in CQD design, fluorescence sensing mechanisms, and practical analytical applications, with an emphasis on precursor engineering, heteroatom doping, and surface-state modulation. Among antibiotic contaminants, tetracyclines represent an important model target due to their extensive use, environmental persistence, and characteristic molecular properties that enable diverse interactions with CQD surfaces. Recognition-assisted CQD biosensing architectures incorporating selective elements such as aptamers, antibodies, and molecularly imprinted polymers represent an important complementary strategy; however, this review specifically focuses on label-free systems in which tetracycline-induced modulation of CQD photoluminescence provides the sensing response. Reported label-free CQD sensors demonstrate improved analytical performance and successful application in complex matrices, including milk, honey, serum, and water samples. Nevertheless, challenges related to fluorescence mechanism ambiguity, synthesis variability, insufficient standardization, matrix interference, and limited long-term validation remain major barriers to practical deployment. Emerging trends, including smartphone-assisted detection, paper-based platforms, and sustainable biomass-derived CQDs, indicate progress toward portable sensing technologies. Future development requires rational CQD design, standardized evaluation frameworks, and robust field-validation strategies for reliable tetracycline monitoring.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 8","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148671207","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

Recent Advances in Fluorescent Sensors for On-Site Forensic Analysis. 现场法医分析荧光传感器的最新进展。

IF 2.8 4区化学

Luminescence Pub Date : 2026-08-01 DOI: 10.1002/bio.70598

Quan Wang, Xin Liu, Lihua Yang, Qinhong Yin

{"title":"Recent Advances in Fluorescent Sensors for On-Site Forensic Analysis.","authors":"Quan Wang, Xin Liu, Lihua Yang, Qinhong Yin","doi":"10.1002/bio.70598","DOIUrl":"10.1002/bio.70598","url":null,"abstract":"Fluorescent sensors have become essential tools for achieving on-site detection in forensic science owing to their inherently high sensitivity and specificity. In recent years, with the continuous advancement of science and technology, the application of fluorescent sensing technology in the forensic field has been significantly enhanced. It has demonstrated particularly promising prospects in the detection of illicit drugs and toxicological substances, the analysis of gunshot and explosive residues, as well as the detection of latent fingerprints. However, substantial challenges remain in several key areas, including structural sensor design, signal amplification technologies, simultaneous multitarget detection, and the further miniaturization and intelligentization of fluorescent devices. This paper systematically reviews the latest research progress of fluorescent sensors in forensic science reported in recent years. Furthermore, it explores the development trends of fluorescent sensing technology for on-site forensic detection. The aim of this review is to provide a comprehensive reference for the future development of fluorescent sensors characterized by high targeting capability, low background interference, exceptional portability, and advanced intelligence.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 8","pages":"e70598"},"PeriodicalIF":2.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148714424","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 Dicyanoisophorone-Naphthalimide-Based Ratiometric Fluorescent Probe for the Detection of Cysteine and Its Applications 双氰异膦-萘酰亚胺比例荧光探针检测半胱氨酸及其应用

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-31 DOI: 10.1002/bio.70597

Yiming Zhang, Yuyan Mao, Sihan Ding, Suci Meng, Xiaohan Qiu, Guifen Lu

{"title":"A Dicyanoisophorone-Naphthalimide-Based Ratiometric Fluorescent Probe for the Detection of Cysteine and Its Applications","authors":"Yiming Zhang, Yuyan Mao, Sihan Ding, Suci Meng, Xiaohan Qiu, Guifen Lu","doi":"10.1002/bio.70597","DOIUrl":"https://doi.org/10.1002/bio.70597","url":null,"abstract":"<div>\u0000 \u0000 Cysteine (Cys) plays an essential role in both food processing and physiological functions; however, excessive intake may pose potential health risks. In this work, a novel ratiometric fluorescent probe DCI-NI-Cys, based on naphthalimide-dicyanoisophorone hybrid, was synthesized for detecting Cys. In the design of the probe, the acrylate group was used as the reaction site for Cys. The probe demonstrated remarkable selectivity and high sensitivity toward Cys detection. Specifically, the limit of detection was determined to be 93 nM in fluorescence spectra and 118 nM in UV–vis absorption spectra, respectively. Moreover, a smartphone-based sensing platform was successfully developed by coupling the probe with RGB color analysis software. DCI-NI-Cys proved capable of detecting Cys in food samples such as cabbage, pear, garlic, and celery with satisfactory recoveries, underscoring its potential for real-world applications. Impressively, DCI-NI-Cys is applicable to image Cys in HepG2 cells and zebrafish.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 8","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617203","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

Interfacial Electronic Interactions in Graphene Quantum Dot/MXene Systems and Their Consequences for Optical Response 石墨烯量子点/MXene系统中的界面电子相互作用及其对光学响应的影响

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-31 DOI: 10.1002/bio.70589

Anjan Kumar, Feras Alnaimat, Mahr Ibrahym Jmah, Chirag G. Makvana, M. Sudhakara Reddy, Ashok Kumar, K. Parasuraman, Sanjeev Kumar

{"title":"Interfacial Electronic Interactions in Graphene Quantum Dot/MXene Systems and Their Consequences for Optical Response","authors":"Anjan Kumar, Feras Alnaimat, Mahr Ibrahym Jmah, Chirag G. Makvana, M. Sudhakara Reddy, Ashok Kumar, K. Parasuraman, Sanjeev Kumar","doi":"10.1002/bio.70589","DOIUrl":"https://doi.org/10.1002/bio.70589","url":null,"abstract":"<div>\u0000 \u0000 Graphene quantum dot (GQD)/MXene heterostructures represent a rapidly emerging class of 0D/2D hybrid materials with exceptional potential in optoelectronics, sensing, and energy conversion. This comprehensive review systematically addresses the fundamental mechanisms of interfacial electronic reconstruction, including atomic-scale contact geometry, orbital hybridization, Fermi-level equilibration, surface terminations, and ground-state charge redistribution, which collectively define the baseline electronic and chemical architecture of these composites. Nonequilibrium photophysical phenomena, such as exciton generation, ultrafast carrier relaxation, energy transfer, and photoluminescence modulation, are discussed in the context of both electronic structure and chemical environment. Key experimental strategies—including in situ spectroscopy, transient absorption, and time-resolved photoluminescence—are analyzed to link microscopic interactions to macroscopic optical and chemical behavior. The review also integrates synthesis strategies, functionalization approaches, and applications, highlighting how interface engineering enables tunable photothermal conversion, optoelectronic sensing, and energy storage performance. By connecting chemical functionalization with electronic and optical responses, this article establishes a unified framework for understanding ground-state reconstruction and ultrafast optical dynamics in GQD/MXene systems, providing a critical foundation for future interface-centric design of next-generation quantum materials.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 8","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617149","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 Sustainable Hybrid (NH4)2SO₄-Driven SALLE–Fluorimetric On–Off Integrated Platform for the Determination of Cinacalcet HCl: A Calcium Receptors Sensing Drug in Different Matrices 一种可持续的杂化（NH4）2SO₄驱动的salle -荧光法开关集成平台测定不同基质中钙受体敏感药物盐酸西那卡塞的含量

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-31 DOI: 10.1002/bio.70548

Ahmed Abdulhafez Hamad, Mohamed A. M. Ali, Anis Ahmad Chaudhary, Badriah Saad Al-Farhan, Safaa F. Saleh, Angum M. M. Ibrahim, Wedad Mawkili, Norah A. Ghazwani

{"title":"A Sustainable Hybrid (NH4)2SO₄-Driven SALLE–Fluorimetric On–Off Integrated Platform for the Determination of Cinacalcet HCl: A Calcium Receptors Sensing Drug in Different Matrices","authors":"Ahmed Abdulhafez Hamad, Mohamed A. M. Ali, Anis Ahmad Chaudhary, Badriah Saad Al-Farhan, Safaa F. Saleh, Angum M. M. Ibrahim, Wedad Mawkili, Norah A. Ghazwani","doi":"10.1002/bio.70548","DOIUrl":"https://doi.org/10.1002/bio.70548","url":null,"abstract":"<div>\u0000 \u0000 A sustainable analytical platform was established through the combination of salting-out assisted liquid–liquid extraction (SALLE) with fluorescence quenching for the trace-level quantification of cinacalcet hydrochloride (CC•HCl). Ammonium sulfate (approved as a safe food additive) was utilized as the phase-separating reagent, whereas eosin Y (EY), a biologically safe fluorescent dye, was selected as the sensing probe. Under acetate buffer conditions (pH 4.6), a stable, nonfluorescent ion pair complex was formed between CC•HCl and EY, producing concentration-dependent quenching responses (λem = 555 nm). A linear working range of 0.06–1.10 μg/mL was obtained (r = 0.9998), with detection and quantitation limits reaching 0.0166 and 0.0503 μg/mL, respectively. Full validation was carried out per ICH Q2(R1) guidelines, confirming acceptable accuracy, specificity, and precision. Kinetic characterization was performed through Stern–Volmer modeling (KSV = 29.13 × 1012 L·mol−1·s−1 and dissociation constant, Kd = 6.90 × 10−6 M), double logarithmic plots (association constant, Ka = 1.45 × 105 L·mol−1), Scatchard analysis (K(Scatchard) = 4.32 × 105 M−1), and the Langmuir adsorption isotherm (K(Langmuir) = 8.51 × 104 ng/mL), all of which verified a specific, high-affinity drug–probe interaction. The platform was further applied to tablet uniformity testing and CC•HCl determination in human biological fluids.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 8","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617150","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

Ca4Nb2O9: Sm3+ Research on the Luminescent Properties of Orange Red Fluorescent Powder Ca4Nb2O9: Sm3+橘红色荧光粉发光性能的研究

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-27 DOI: 10.1002/bio.70588

Yubo Wu, Ruirui Cui, Xiaoping Wu, Shouwei Chen

{"title":"Ca4Nb2O9: Sm3+ Research on the Luminescent Properties of Orange Red Fluorescent Powder","authors":"Yubo Wu, Ruirui Cui, Xiaoping Wu, Shouwei Chen","doi":"10.1002/bio.70588","DOIUrl":"10.1002/bio.70588","url":null,"abstract":"<div>\u0000 \u0000 Highly efficient and thermally stable orange-red phosphors are critical for optimizing the color quality of phosphor-converted white LEDs. Here, Ca4–1.5xNb2O9: xSm3+ were fabricated via a conventional solid-state route. Structural characterization confirms that all samples crystallize in a single-phase monoclinic lattice, where Sm3+ is successfully incorporated into Ca2+ sites, inducing slight lattice contraction without destroying the host framework. Spectroscopic analyses reveal that aliovalent substitution generates localized defect states and narrows the bandgap from 3.67 to 3.44 eV, thereby enhancing optical absorption. Under 406 nm excitation, the materials display intense Sm3+-centered emissions dominated by the 4G5/2 → 6H7/2 transition, yielding saturated orange-red output. The optimal composition (x = 0.03) achieves maximum luminescence, while concentration quenching is attributed to dipole–dipole interactions. In addition, the phosphor exhibits saturated orange–red emission with chromaticity coordinates of (0.5964, 0.4013), highlighting its strong color performance. Overall, the results demonstrate that Ca4–1.5xNb2O9: xSm3+ is a promising candidate for high-performance WLEDs.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148609483","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

Nitrogen, Copper, and Iodine Triple-Doped Carbon Dots as a Dual-Functional Probe for Chemiluminescence Detection of Nickel Ion and Tannic Acid 氮、铜、碘三掺杂碳点作为化学发光检测镍离子和单宁酸的双功能探针。

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-24 DOI: 10.1002/bio.70590

Jiaoyan Xie, Suqin Han

{"title":"Nitrogen, Copper, and Iodine Triple-Doped Carbon Dots as a Dual-Functional Probe for Chemiluminescence Detection of Nickel Ion and Tannic Acid","authors":"Jiaoyan Xie, Suqin Han","doi":"10.1002/bio.70590","DOIUrl":"10.1002/bio.70590","url":null,"abstract":"<div>\u0000 \u0000 A new chemiluminescence (CL) method based on nitrogen, copper, and iodine triple-doped carbon dots (N,Cu,I-CDs) was developed for the rapid determination of nickel ion (Ni2+) and tannic acid (TA). The N,Cu,I-CDs were synthesized via a one-step hydrothermal method and exhibited uniform particle size, excellent water solubility, and favorable optical properties. Further studies revealed that the N,Cu,I-CDs significantly enhanced the CL signal of the K3Fe(CN)6-H2O2 system, while the introduction of Ni2+ or TA strongly suppressed the CL emission. Under optimal conditions, the CL intensity was linearly correlated with Ni2+ concentration over the range of 1.0–100.0 μM, with a limit of detection (LOD) of 0.08 μM. For TA, a linear range of 0.4–10.0 μM was obtained, with an LOD of 0.045 μM. The proposed method was successfully applied to the determination of Ni2+ in celery, spinach, and starch, and TA in tea, beer, and grape juice, with recoveries of 97.7%–107.0% and 95.0%–107.0%, respectively.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148580949","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

Glyphosate Detection Using a Fast-Response Naphthalimide-Al3+ Fluorescent Probe With Visual Monitoring and Smartphone-Assisted Readout 使用具有视觉监测和智能手机辅助读数的快速响应萘酰亚胺- al3 +荧光探针检测草甘膦。

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-24 DOI: 10.1002/bio.70593

Yali Zhu, Chen Xu, Fang Zeng, Shuizhu Wu

{"title":"Glyphosate Detection Using a Fast-Response Naphthalimide-Al3+ Fluorescent Probe With Visual Monitoring and Smartphone-Assisted Readout","authors":"Yali Zhu, Chen Xu, Fang Zeng, Shuizhu Wu","doi":"10.1002/bio.70593","DOIUrl":"10.1002/bio.70593","url":null,"abstract":"<div>\u0000 \u0000 The widespread use of glyphosate, a broad-spectrum organophosphorus herbicide, has raised increasing concern due to its environmental persistence and potential health hazards. However, its high polarity and lack of chromophores make accurate detection challenging. Here, we report a naphthalimide-based fluorescent probe (NAPA-Al3+) for the rapid and sensitive detection of glyphosate. The probe is constructed by coordination between a pyridinamine-modified naphthalimide fluorophore and Al3+ ions, resulting in quenched fluorescence. Upon the introduction of glyphosate, Al3+ preferentially coordinates with glyphosate, releasing the fluorophore and restoring fluorescence. The NAPA-Al3+ probe detects glyphosate rapidly within 5 s and achieves a low detection limit of 57.5 nM, outperforming most reported glyphosate probes. Furthermore, portable test strips incorporating NAPA-Al3+ were fabricated, which display a distinct blue-to-green color change with increasing glyphosate concentration. Smartphone-assisted colorimetric analysis was further applied to achieve real-time, visual, and quantitative detection. This work demonstrates a simple, low-cost, and highly effective strategy for glyphosate monitoring, providing a promising platform for food safety regulation and environmental surveillance.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148580935","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

Microwave-Driven Fabrication of Blue Fluorescent Undoped and Nitrogen-Doped Carbon Quantum Dots From Ficus religiosa for Efficient Visible-Light Photocatalytic Degradation of Cationic Dyes: A Parametric Optimization Study 微波驱动制备无掺杂和氮掺杂无花果蓝色荧光碳量子点，用于高效可见光催化降解阳离子染料：参数优化研究。

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-24 DOI: 10.1002/bio.70587

Siddharth Siddharth, Gita Rani, Suman Suman, Sunil Kumar, Rajiv Rajiv, Gurjaspreet Singh, Rachna Ahlawat

{"title":"Microwave-Driven Fabrication of Blue Fluorescent Undoped and Nitrogen-Doped Carbon Quantum Dots From Ficus religiosa for Efficient Visible-Light Photocatalytic Degradation of Cationic Dyes: A Parametric Optimization Study","authors":"Siddharth Siddharth, Gita Rani, Suman Suman, Sunil Kumar, Rajiv Rajiv, Gurjaspreet Singh, Rachna Ahlawat","doi":"10.1002/bio.70587","DOIUrl":"10.1002/bio.70587","url":null,"abstract":"<div>\u0000 \u0000 Malachite green (MG), a persistent aquatic pollutant, poses serious risks to water bodies and requires efficient degradation strategies. The use of bare or undoped carbon quantum dots (UCQDs) has been shown to be an effective approach for degrading such pollutants. In this study, we explored the enhancement of photocatalytic performance in UCQDs through modification with nitrogen-doped carbon quantum dots (N-CQDs). These both CQDs were synthesized via a one-step microwave-assisted treatment of Ficus religiosa leaf powder and urea. The resulting N-CQDs were obtained by carbonizing the UCQDs with urea at 800 W. Compared with UCQDs, which were produced solely from leaf powder, the N-CQDs exhibited significantly improved degradation efficiency, with nitrogen content increasing from 1.5% to 5.5%. Under optimized conditions, the degradation rate of MG using N-CQDs reached 94.84%. Free radical scavenging experiments revealed the key active species involved in the photocatalytic process. The study confirmed the participation of h+, •O2−, and •OH radicals, with the order of their contribution to MG degradation determined as •OH > •O2− > h+. The kinetics of photocatalytic degradation were examined as well. The MG dye molecule's degradation pathway was determined by the radical scavenging experiment. On account of these findings, the photocatalytic mechanism, which forms h+, •O2−, and •OH by electron transition and transfer, was speculated on, yielding several significant implications for the utilization of the photocatalytic technique in the treatment of wastewater.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148581037","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

Chelation-Controlled Fluorescence: A Novel Coumarin–Thiazole Probe for Zn (II) Analysis in Real Samples 螯合控制荧光：用于实际样品中Zn （II）分析的新型香豆素-噻唑探针。

IF 2.8 4区化学

Luminescence Pub Date : 2026-07-23 DOI: 10.1002/bio.70582

Sara A. Darwish, Amal A. El-Masry, Shymaa M. Abd Elhaleem, Nadia S. El-Gohary, Ahmed R. Ali

{"title":"Chelation-Controlled Fluorescence: A Novel Coumarin–Thiazole Probe for Zn (II) Analysis in Real Samples","authors":"Sara A. Darwish, Amal A. El-Masry, Shymaa M. Abd Elhaleem, Nadia S. El-Gohary, Ahmed R. Ali","doi":"10.1002/bio.70582","DOIUrl":"10.1002/bio.70582","url":null,"abstract":"<div>\u0000 \u0000 In this investigation, an exceptional coumarin–thiazole-based fluorescent sensor was fabricated through a facile one-pot synthetic strategy, affording a highly emissive blue-fluorescent probe suitable for Zn (II) determination. The synthesized fluorescent probe exhibited a strong emission band at 470 nm upon excitation at 410 nm with a quantum yield of 0.95 ± 0.05. Incremental additions of Zn (II) from 2.5 to 37.5 μM induced a pronounced turn-off response in fluorescence intensity. An excellent linearity (r = 0.9999) was established between the quenching magnitude and Zn (II) concentration, with a limit of detection (LOD) reaching 0.47 μM, indicative of exceptional sensitivity. This fluorescence attenuation was ascribed to a chelation-induced static quenching mechanism, as corroborated by Stern–Volmer analysis, confirming the formation of a non-emissive Zn (II)–probe complex. The protocol demonstrated practical utility in assaying Zn (II) within commercial tablets and river water matrices, yielding recovery rates of 97.70%–102.85%. These results demonstrate the high selectivity of the fabricated probe and its negligible susceptibility to matrix interferences. Collectively, this methodology offers a facile, economical one-pot synthesis route alongside a highly sensitive spectrofluorimetric platform, thereby extending its scope for real-world environmental and pharmaceutical monitoring.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148580866","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