Luminescence最新文献_第9页

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 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":"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":3.0,"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 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":"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":3.0,"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 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":"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":3.0,"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 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":"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":3.0,"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 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":"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":3.0,"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 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":"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":3.0,"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

Fabrication of Poly(L-Glutamic) Acid Functionalized Nitrogen and Sulfur-Doped Graphene Quantum Dots for Fluorescent-Based Detection of Kallikrein 7 聚l -谷氨酸功能化氮和硫掺杂石墨烯量子点的制备及其荧光检测klikrein 7的研究

IF 3 4区化学

Luminescence Pub Date : 2025-06-27 DOI: 10.1002/bio.70245

Ashwini Ghanashyam Patil, Pravin Onkar Patil

{"title":"Fabrication of Poly(L-Glutamic) Acid Functionalized Nitrogen and Sulfur-Doped Graphene Quantum Dots for Fluorescent-Based Detection of Kallikrein 7","authors":"Ashwini Ghanashyam Patil, Pravin Onkar Patil","doi":"10.1002/bio.70245","DOIUrl":"10.1002/bio.70245","url":null,"abstract":"<div>\u0000 \u0000 Detecting tumor biomarkers plays a vital role in early identification and treatment of cancer. However, an effective diagnostic method must be cost-efficient and highly sensitive to meet the essential requirements for accurate diagnosis. Present work reports a novel fluorescence sensing approach for the selective detection of kallikrein 7 (KLK7) using poly(L-glutamic acid) (PLGA) functionalized sulfur–nitrogen doped graphene quantum dots (NSGQDs). The NSGQDs were synthesized through an eco-friendly method using Custard apple (Annona squamosa) seeds (NSGQDsCS), and their functionalization was achieved with PLGA (PLGA-NSGQDsCS). The PLGA-GQDs, with their rich surface functionality, exhibited selective binding with the activated KLK7 antibody (KLK7-Ab), inducing fluorescence quenching. The affinity between KLK7 and the KLK7-Ab triggered the unwrapping of the antibody, forming an antibody–antigen complex with fluorescence recovery. Based on this interaction, a “turn on–off–on” mechanism of sensing was established, exhibiting a robust response to KLK7 (0.1 ng/mL to 100 μg/mL) with a LOD of 0.1 ng/mL and LOQ of 0.411 ng/mL. In addition, the developed KLK7 immunosensor (KLK7-Ab@PLGA-NSGQDsCS) demonstrated excellent performance in the analysis of spiked samples, achieving an average recovery rate of 97.52%. This study highlights a highly sensitive immunosensor, offering potential for early cancer detection, with promising avenues for broader biomarker applications in clinical diagnostics.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492877","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 Fluorescence-Enhanced Naphthalimide Fluorescent Probe With CF3 Group to Detect Formaldehyde and Its Application in Mini-Bok Choy CF3基荧光增强萘酰亚胺荧光探针检测甲醛及其在小白菜中的应用

IF 3 4区化学

Luminescence Pub Date : 2025-06-26 DOI: 10.1002/bio.70242

Xiaoming Wu, Leyuan Ding, Shaoxiang Yang, Hongyu Tian, Baoguo Sun

引用次数: 0

Sustainable Fluorescent Carbon Dots From Apple Snail Eggs for Enhanced Visualization of Shed Skin Cells in Latent Fingerprints 从苹果蜗牛卵中提取可持续荧光碳点，增强潜在指纹中脱皮细胞的可视化

IF 3 4区化学

Luminescence Pub Date : 2025-06-25 DOI: 10.1002/bio.70246

Ratima Janthima, Oratai Weeranantanapan, Sirapanat Injinda, Sineenat Siri

{"title":"Sustainable Fluorescent Carbon Dots From Apple Snail Eggs for Enhanced Visualization of Shed Skin Cells in Latent Fingerprints","authors":"Ratima Janthima, Oratai Weeranantanapan, Sirapanat Injinda, Sineenat Siri","doi":"10.1002/bio.70246","DOIUrl":"10.1002/bio.70246","url":null,"abstract":"<div>\u0000 \u0000 Latent fingerprints contain shed skin cells that serve as critical DNA sources for forensic analysis; however, the efficiency of touch DNA analysis is often limited by insufficient cell quantities. This study presents a novel fluorescent carbon dot (CD) synthesized from a sustainable biomass source—apple snail eggs (ASE)—to enhance cell visualization in latent fingerprints. The ASE-derived CDs (ASE-CDs) were synthesized via a microwave-assisted hydrothermal method, optimized with 0.1-g/mL ASE extract at 1200 W, 200°C, for 60 min. The resulting ASE-CDs exhibited strong fluorescence, with excitation and emission peaks at 351 and 416 nm, respectively. Transmission electron microscopy (TEM) revealed a uniform morphology with an average particle size of 5.4 nm, while X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy confirmed their crystallinity, graphitization, and surface functional groups. ASE-CDs enabled the effective visualization of shed skin cells in latent fingerprints, displaying higher fluorescence intensity than commonly used dyes—Diamond Nucleic Acid Dye (DD) and SYBR Green I Nucleic Acid Gel Stain (SGI)—while demonstrating lower photobleaching than DD. These findings highlight ASE-CDs as a sustainable, eco-friendly fluorescent probe with potential forensic applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144482192","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

“Signal-Switching” Fluorescence Sensing of Fe3+ and Ascorbic Acid by Songaria Cynomorium Polysaccharide-Doped Carbon Dots of the Tibetan Medicinal Herb 藏药锁阳多糖掺杂碳点对Fe3+和抗坏血酸的“信号开关”荧光传感

IF 3 4区化学

Luminescence Pub Date : 2025-06-24 DOI: 10.1002/bio.70233

Huan Wang, Tianfeng Ma, Wencheng Mu, Cailin Wang, Siqi Sheng, Yanyan Jia, Yongchang Lu

{"title":"“Signal-Switching” Fluorescence Sensing of Fe3+ and Ascorbic Acid by Songaria Cynomorium Polysaccharide-Doped Carbon Dots of the Tibetan Medicinal Herb","authors":"Huan Wang, Tianfeng Ma, Wencheng Mu, Cailin Wang, Siqi Sheng, Yanyan Jia, Yongchang Lu","doi":"10.1002/bio.70233","DOIUrl":"10.1002/bio.70233","url":null,"abstract":"<div>\u0000 \u0000 The Songaria Cynomorium polysaccharide-doped carbon dots (SP-CDs) were synthesized by carbonization-heating method. Songaria Cynomorium polysaccharide (PS) was the carbon source. Ethylenediamine (EDA), phosphoric acid (H3PO4), and concentrated hydrochloric acid (HCl) were dopants, respectively. The SP-CDs exhibited the maximum fluorescence emission wavelength of 540 nm under the excitation wavelength of 485 nm (“ON” state). After the introduction of Fe3+ with an intermediate bridging effect, the fluorescence intensity of SP-CDs was quenched due to the formation of the complex (SP-CDs/Fe3+) between SP-CDs and Fe3+ (“OFF” state). Subsequently, the fluorescence signal returned to “ON” due to the redox reaction between AA and Fe3+ when ascorbic acid was introduced into SP-CDs/Fe3+ solution. Therefore, the synthesized SP-CDs could be used as a “switch type” fluorescence sensor for detecting Fe3+ and AA. The analysis revealed that the linear range of Fe3+ extended from 0.05 to 500.00 μM, with the limit of detection (LOD) of 0.02 μM (S/N = 3). The scope of analysis for AA was determined to be within the range of 0.65–400.00 μM, with the limit of detection (LOD) of 0.09 μM (S/N = 3). Furthermore, the recommended fluorescence sensor was successfully employed for quantitatively detecting Fe3+ and AA in serum samples.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472812","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