Luminescence最新文献_第3页

Optical Temperature Sensor Based on Er3+/Yb3+-Codoped Perovskite BaZrO3 Er3+/Yb3+-共掺杂钙钛矿BaZrO3的光学温度传感器

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-17 DOI: 10.1002/bio.70261

Pham Van Huan, Bui Xuan Kien, Dinh Van Chau

{"title":"Optical Temperature Sensor Based on Er3+/Yb3+-Codoped Perovskite BaZrO3","authors":"Pham Van Huan, Bui Xuan Kien, Dinh Van Chau","doi":"10.1002/bio.70261","DOIUrl":"https://doi.org/10.1002/bio.70261","url":null,"abstract":"<div>\u0000 \u0000 The Er3+/Yb3+-codoped perovskite BaZrO3 (BaZrO3:Er3+, Yb3+) phosphor was synthesized via a simple, rapid, and cost-effective pyrolysis reaction. The perovskite crystals BaZrO3:Er3+, Yb3+ have a Goldschmidt tolerance factor of 0.9–1 and belong to the cubic crystal system. BaZrO3:Er3+ emits strong green luminescence when excited by a 980-nm laser. The addition of Yb3+ can tune the emission color of BaZrO3:Er3+ from green to yellow and red. BaZrO3:Er3+, Yb3+ was investigated as temperature probes for optical temperature sensors. The performance of the temperature sensor was evaluated over the temperature range of 293–473 K. Using the fluorescence intensity ratio (FIR) technique based on the thermally coupled levels (TCLs) of the two emission bands (2H11/2 → 4I15/2, 4S3/2 → 4I15/2), the maximum relative sensitivity of the sensor was 1.03 × 10−2 K−1 at 293 K.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647209","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 of a Visual Colorimetric Method for Dopamine Detection Using Gold Nanoclusters@Covalent Organic Framework as Peroxidase Mimics 利用金Nanoclusters@Covalent有机骨架作为过氧化物酶模拟物的多巴胺检测视觉比色法的建立

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-10 DOI: 10.1002/bio.70257

Yingling Wu, Longxiao Liu, Xutao Xu, Yongmin Duan, Haojie Fu, Wenyu Wang, Zhijun Chen, Jinquan Liu

{"title":"Development of a Visual Colorimetric Method for Dopamine Detection Using Gold Nanoclusters@Covalent Organic Framework as Peroxidase Mimics","authors":"Yingling Wu, Longxiao Liu, Xutao Xu, Yongmin Duan, Haojie Fu, Wenyu Wang, Zhijun Chen, Jinquan Liu","doi":"10.1002/bio.70257","DOIUrl":"https://doi.org/10.1002/bio.70257","url":null,"abstract":"<div>\u0000 \u0000 Dopamine (DA) is a critical neurotransmitter linked to various neuropsychiatric disorders, emphasizing the need for precise detection in clinical settings. Herein, a novel colorimetric method for detecting DA was developed using gold nanocluster@covalent organic frameworks (AuNCs@COF) with peroxidase-like activity. The composite was created by integrating ultrasmall, uniformly distributed gold nanoclusters (AuNCs) into a COF matrix, retaining COF' advantages while enhancing catalytic activity and stability. AuNCs@COF catalyzed the oxidation of the colorless substrate TMB in the presence of H2O2, producing a blue product (oxTMB) with an absorbance peak at 652 nm. DA inhibited this catalytic activity, enabling visual and quantitative detection. The method demonstrated sensitivity (detection limit: 14 μmol/L) and a wide dynamic range (50–500 μmol/L), with excellent selectivity, reproducibility, and successful application in detecting DA in human urine samples (recovery rates: 93.7%–111.5%, RSD < 2.5%). This study underscores the potential of AuNCs@COF as a robust nanozyme for rapid, cost-effective, and user-friendly DA detection, holding promise for clinical diagnostics and point-of-care applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589618","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

Calculation of the Half-Life for the TL Signal of BeO Under Gamma and Alfa/Gamma Irradiation γ和α / γ辐照下BeO TL信号半衰期的计算

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-09 DOI: 10.1002/bio.70251

Rodrigo Martinez-Baltezar, Carlos M. Martínez-Martínez, L. Alberto Medina-Juárez, Gustavo Sánchez-Santacruz, Juan Azorín-Nieto

{"title":"Calculation of the Half-Life for the TL Signal of BeO Under Gamma and Alfa/Gamma Irradiation","authors":"Rodrigo Martinez-Baltezar, Carlos M. Martínez-Martínez, L. Alberto Medina-Juárez, Gustavo Sánchez-Santacruz, Juan Azorín-Nieto","doi":"10.1002/bio.70251","DOIUrl":"https://doi.org/10.1002/bio.70251","url":null,"abstract":"The thermoluminescent (TL) properties of BeO ceramics (Thermalox 995) were investigated under gamma and alpha/gamma irradiation. Glow curves in both cases exhibit three main peaks at 348 ± 1 K, 477 ± 2 K, and 616 ± 1 K. Activation energies for gammainduced peaks are 0.76 ± 0.03 eV, 1.18 ± 0.04 eV, and 1.11 ± 0.02 eV; these increase slightly under alpha/gamma irradiation to 0.81 ± 0.02 eV, 1.22 ± 0.03 eV, and 1.18 ± 0.01 eV. The kinetic orders are close to first order, with slightly higher values observed for the 477 K peak. Based on these parameters, the half-lives of the TL components were calculated. For gamma: 131 s, 1.92 years, and 522 years; and for alpha/gamma: 168 s, 5.07 years, and 2067 years. Fading experiments on five samples showed deviations of less than 10% from theoretical values for the first peak. The half-life also varied with irradiation time: the 477 K peak showed a decreasing trend, while the 616 K peak increased, indicating differences in trap-filling mechanisms. Deconvolution analysis revealed that the second peak (around 477 K) exhibits the most linear dose response under both irradiation types. These results underscore the significance of analyzing half-life behavior to understand the stability and performance of BeO as a dosimetric material under varied irradiation conditions.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable Fabrication of Graphene Quantum Dots Preparation From Cellulosic Carbon Waste for Application in Photoinduced Biohydrogen Production 纤维素碳废料制备石墨烯量子点的可持续制备及其在光诱导生物制氢中的应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-08 DOI: 10.1002/bio.70250

Rajeev Singh, Pradeep Kumar Choudhary, Irfan Ahamd, Abdullah Mashraqi, Shafiul Haque, Neha Srivastava

{"title":"Sustainable Fabrication of Graphene Quantum Dots Preparation From Cellulosic Carbon Waste for Application in Photoinduced Biohydrogen Production","authors":"Rajeev Singh, Pradeep Kumar Choudhary, Irfan Ahamd, Abdullah Mashraqi, Shafiul Haque, Neha Srivastava","doi":"10.1002/bio.70250","DOIUrl":"https://doi.org/10.1002/bio.70250","url":null,"abstract":"<div>\u0000 \u0000 Graphene quantum dots (GQDs) are a novel carbon nanomaterial from the graphene class, known for their unique physicochemical properties and diverse range of applications. However, toward the sustainable application of GQDs, their synthesis methods remain the main roadblock due to high production costs and the release of toxic byproducts. For this reason, developing sustainable and economical fabrication methods for GQDs remains one of the most pressing and promising areas of research. In this context, lignocellulosic biomass (LCB) waste is a prime choice for the fabrication of GQDs due to the presence of high carbon and cellulose content as precursor and reducing agents. Additionally, LCBs are a prime source of potential bioenergy production, which is a key research hotspot nowadays to avoid environmental pollution, global warming, and energy crises. Therefore, the present review provides feasibility for sustainable and environmentally friendly fabrication of GQDs using LCB waste for cellulosic biofuels production technology improvement. Furthermore, the prospective of using these GQDs as catalysts in biomass-based bioenergy production for the development of low-cost biomass for biofuel production technology has been discussed along with the existing limitations and their sustainable recommendation.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144574045","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

Tuning the Near Infrared Emission of MgO:Cr3+ Phosphors by Inducing Ti4+ Ions 通过诱导Ti4+离子调节MgO:Cr3+荧光粉的近红外发射

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-08 DOI: 10.1002/bio.70255

Keyue Wu, Yi Yang, Zeya Wang

{"title":"Tuning the Near Infrared Emission of MgO:Cr3+ Phosphors by Inducing Ti4+ Ions","authors":"Keyue Wu, Yi Yang, Zeya Wang","doi":"10.1002/bio.70255","DOIUrl":"https://doi.org/10.1002/bio.70255","url":null,"abstract":"<div>\u0000 \u0000 Near-infrared (NIR) phosphors activated by Cr3+ ions hold significant potential for applications such as night vision and plant growth lighting due to their tunable emission properties governed by crystal field (CF) strength. In this study, Cr3+ and Ti4+ co-doped MgO phosphors were synthesized via a high-temperature solid-state reaction to modulate the NIR emission. Structural and optical characterizations revealed that Ti4+ incorporation enhances the CF strength (Dq/B ratio increases from 2.4 to 2.6), inducing a blue shift in the emission peak from 810 (MgO:Cr3+) to 780 nm (Mg0.8Ti0.2O:Cr3+) and with a strong sharp emission at 720 nm. The Ti4+ doping also increases the fluorescence lifetime from 150.9 to 816.4 μs, attributed to altered Cr3+ occupancy in octahedral sites and modified spin-allowed transitions. These findings demonstrate that Ti4+ co-doping effectively tunes the NIR emission of MgO:Cr3+ phosphors, offering a promising strategy for designing wavelength-adjustable NIR light sources.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144574046","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

Chalcogen-Substituted Fluorinated π-Conjugated Systems: DFT-Guided Insights Into Optoelectronic Properties, Luminescence Behavior, and Photovoltaic Performance 硫代氟化π共轭体系：dft引导下的光电性能、发光行为和光伏性能

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-05 DOI: 10.1002/bio.70254

I. Cherif, S. Hajaji, B. Abdelaziz, M. Bouachrine, S. Ayachi

{"title":"Chalcogen-Substituted Fluorinated π-Conjugated Systems: DFT-Guided Insights Into Optoelectronic Properties, Luminescence Behavior, and Photovoltaic Performance","authors":"I. Cherif, S. Hajaji, B. Abdelaziz, M. Bouachrine, S. Ayachi","doi":"10.1002/bio.70254","DOIUrl":"https://doi.org/10.1002/bio.70254","url":null,"abstract":"<div>\u0000 \u0000 Fluorine incorporation in organic molecules effectively modulates their electronic properties by lowering frontier molecular orbital energy levels due to its strong electron-withdrawing nature. This study employs DFT and TD-DFT based calculations to investigate fluorinated low-bandgap π-conjugated systems featuring a benzodifurandione core linked to oxindole units, with chalcogen variation (O, S, Se) in the central framework. Electronic structure analysis reveals a progressive redshift in absorption and photoluminescence spectra from O to Se, attributed to enhanced π-conjugation and increased atomic polarizability, reducing the HOMO-LUMO gap. M3 (X = Se) demonstrates the most redshifted optical properties, making it ideal for near-infrared (NIR) applications. Bulk heterojunction (BHJ) device assessments yield power conversion efficiencies (PCEs) of up to 7.00%, highlighting their potential in high-performance OSCs. Non-covalent interactions (NCIs), including hydrogen bonding and van der Waals forces, are characterized using Hirshfeld surface analysis, reduced density gradient (RDG) scatter plots, and the quantum theory of atoms in molecules (QTAIM), emphasizing their influence on molecular packing and stability. Electron localization function (ELF) and localized orbital locator (LOL) analyses further elucidate the balance of covalent and non-covalent interactions governing optoelectronic behavior. These findings provide fundamental design insights for next-generation fluorinated low-bandgap materials, advancing the development of high-efficiency OSCs.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144558160","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

Trifluoperazine Nano-Level Assay in Pharmaceutical Formulation Using a Green and Simple Spectrofluorometric Approach Based on Ion Pairing With Erythrosine B: Application to Content Uniformity With Greenness and Blueness Evaluation 基于红素B离子配对的绿色简易荧光光谱法测定药物制剂中三氟拉嗪纳米含量：在含量均匀性及绿蓝度评价中的应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-05 DOI: 10.1002/bio.70252

Khalid M. Badr El-Din, Sayed M. Derayea, Mohamed Oraby, Hadeer A. Elhamdy

{"title":"Trifluoperazine Nano-Level Assay in Pharmaceutical Formulation Using a Green and Simple Spectrofluorometric Approach Based on Ion Pairing With Erythrosine B: Application to Content Uniformity With Greenness and Blueness Evaluation","authors":"Khalid M. Badr El-Din, Sayed M. Derayea, Mohamed Oraby, Hadeer A. Elhamdy","doi":"10.1002/bio.70252","DOIUrl":"https://doi.org/10.1002/bio.70252","url":null,"abstract":"<div>\u0000 \u0000 Trifluoperazine (TFP) is an important phenothiazine derivative that has anti-adrenergic, anti-dopaminergic, and mild anti-cholinergic effects. It is used in the treatment of certain psychotic disorders and parkinsonism. TFP was determined using a simple, green, sensitive, and non-extractive spectrofluorimetric approach in bulk and pharmaceutical formulation. The basic principle of this technique is the association complex that could be formed between TFP and erythrosine B in an acidic environment. The complex formation quenched the intrinsic erythrosine B fluorescence that was monitored at 552 nm following excitation at 530 nm. The linear concentration range was 50–1400 ng mL−1 with a respectable correlation coefficient (r = 0.9998). All factors influencing the production of the complex were investigated and adjusted. The LOD and LOQ were 15 and 46 ng mL−1, respectively. For the validation criteria, the International Council on Harmonization (ICH) guidelines had been followed. It was possible to analyze TFP in bulk, tablet formulations, and evaluation of Stellasil tablet content uniformity using the proposed method with accurate, reproducible, and repeatable results. Finally, the greenness of the developed approach was assessed utilizing three advanced tools: the Eco-Scale, GAPI, and AGREE. In addition, the blueness of the approach was evaluated using a new tool called BAGI.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144558159","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

Exploring the Potential of MXenes for Biomedical and Environmental Applications—An Abridged Review 探索MXenes在生物医学和环境应用中的潜力-综述

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-03 DOI: 10.1002/bio.70238

Narendhar Chandrasekar, Pinky Steffi Alexander, Phuong Thi Pham, Dr Balaji Ramachandran, D. R. Nivedha, Nivruthi Shekar, Madhumita Muraleetharan, Sarigamala Karthik Kiran, Michael Taeyoung Hwang

{"title":"Exploring the Potential of MXenes for Biomedical and Environmental Applications—An Abridged Review","authors":"Narendhar Chandrasekar, Pinky Steffi Alexander, Phuong Thi Pham, Dr Balaji Ramachandran, D. R. Nivedha, Nivruthi Shekar, Madhumita Muraleetharan, Sarigamala Karthik Kiran, Michael Taeyoung Hwang","doi":"10.1002/bio.70238","DOIUrl":"https://doi.org/10.1002/bio.70238","url":null,"abstract":"<div>\u0000 \u0000 A new class of 2D nanomaterials called MXenes, which have been of interest in recent years, which possess outstanding electrochemical, biological, optical, and mechanical capabilities. The MXene heterostructures' prominence in technologies including bioimaging, contrast enhancement through luminescence, biosensors, batteries, and environmental applications have picked up pace. This review will cover various intriguing MXene-based biomedical and environmental applications through their most recent developments, design principles, and operational mechanisms. Different forms of MXenes may be associated with pharmaceutical compounds, metallic nanostructured materials, polymeric structures, and other functional components. MXenes face several further advancements as well as significant hurdles in employing them in a right sort of material composition. A thorough discussion of this remarkable material's potential applications and difficulties as discussed in this review along with the highly tunable physiochemical properties.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144537060","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

Structure and Luminescence Properties of Novel Dy3+and Tb3+ Activated Ca10(PO4)6Cl2 Phosphors for Solid-State Lighting Devices 新型Dy3+和Tb3+活化的固态照明器件用Ca10(PO4)6Cl2荧光粉的结构和发光性能

IF 3.2 4区化学

Luminescence Pub Date : 2025-07-01 DOI: 10.1002/bio.70241

Roshana. T. Maske, A. N. Yerpude, Rupesh. S. Wandhare, D. M. Parshuramkar, N. R. Pawar

{"title":"Structure and Luminescence Properties of Novel Dy3+and Tb3+ Activated Ca10(PO4)6Cl2 Phosphors for Solid-State Lighting Devices","authors":"Roshana. T. Maske, A. N. Yerpude, Rupesh. S. Wandhare, D. M. Parshuramkar, N. R. Pawar","doi":"10.1002/bio.70241","DOIUrl":"https://doi.org/10.1002/bio.70241","url":null,"abstract":"<div>\u0000 \u0000 The novel Dy3+-and Tb3+-doped Ca10(PO4)6Cl2 phosphor is synthesized by the conventional wet chemical technique. The XRD pattern of prepared Dy3+ and Tb3+ doped in host material is in well agreement with the PDF card no. 7032212. The SEM image shows that the size of the particle is non-uniform in size and shape; it ranges in submicrometers. FTIR analysis confirms phosphate (PO4)3− and Ca-O group bonding present in Ca10(PO4)6Cl2 phosphor. The photoluminescence spectra of the prepared Ca10(PO4)6Cl2:Dy3+ phosphor, under the excitation at 350 nm, it exhibit two emission peaks located at 474 nm (4F9/2 → 6H15/2) and 572 nm (4F9/2 → 6H13/2), emitting blue and orange color respectively. The high-intensity peak is located at 474 nm. The PLE spectra of Ca10(PO4)6Cl2:Tb3+ phosphor contain two strong emission peaks centered at 470 (blue) nm and 543 (green) nm, these ascribed due to 5D4 → 7F6 & 5D4 → 7F5 transition of Tb3+ ions monitored at 354 and 379 nm excitation. The concentration quenching mechanism between the Dy3+–Dy3+ ions and Tb3+-Tb3+ ions is primarily attributed to dipole–dipole (d–d) interactions. The results suggest that Ca10(PO4)6Cl2:RE (RE = Dy3+, Tb3+) phosphor shows promise for use as a near-UV phosphor in solid-state lighting applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524875","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 Red-Emitting Copper Nanoclusters as Fluorescence-Quenching Probes for Selective Detection of Congo Red 新型红色发射铜纳米团簇作为荧光猝灭探针选择性检测刚果红

IF 3.2 4区化学

Luminescence Pub Date : 2025-06-30 DOI: 10.1002/bio.70247

Miaomiao Tian, Jingyao Li, Gang Liu

{"title":"Novel Red-Emitting Copper Nanoclusters as Fluorescence-Quenching Probes for Selective Detection of Congo Red","authors":"Miaomiao Tian, Jingyao Li, Gang Liu","doi":"10.1002/bio.70247","DOIUrl":"https://doi.org/10.1002/bio.70247","url":null,"abstract":"<div>\u0000 \u0000 Congo red poses significant toxicity to both humans and the environment, and its persistence in natural habitats for prolonged periods exacerbates these risks. Therefore, accurate detection of Congo red is crucial. In this study, red-emitting copper nanoclusters (Cu NCs) were synthesized through a novel strategy at room temperature within 15 min, using polyvinylpyrrolidone (PVP) as the protective ligand and 3-mercaptophenylboronic acid (3-MPBA) as both stabilizing and reducing agents. When excited at 335 nm, the Cu NCs exhibited a prominent red emission peak centered at 635 nm, along with remarkable water solubility, superior fluorescence stability, and a prolonged fluorescence lifetime. The fluorescence of Cu NCs was efficiently quenched by Congo red due to both static and dynamic quenching mechanisms. Based on this principle, Cu NCs were employed as fluorescent sensors for the rapid, selective, and sensitive detection of Congo red. A linear decrease in fluorescence intensity was observed with increasing Congo red concentrations in the ranges of 2–100 μM and 100–180 μM, with a detection limit of 0.68 μM. Significantly, the application of this method for detecting Congo red in water samples demonstrated satisfactory results, highlighting the practical potential of Cu NCs in real sample analysis.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519646","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