Luminescence最新文献

Rapid Cataluminescence Sensing of Acetonitrile Using Urchin-Like Hierarchical CuCo2O4 Spinel 海胆状分层CuCo2O4尖晶石对乙腈的快速催化发光传感。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-05 DOI: 10.1002/bio.70672

Bai Sun, Junjie Wang, Jingjie Fan, Guiyun Hong, Yun Wang, Mingjian Yi, Hao Huang, Lining Bao, Shuguang Zhu, Hongyan Wang

{"title":"Rapid Cataluminescence Sensing of Acetonitrile Using Urchin-Like Hierarchical CuCo2O4 Spinel","authors":"Bai Sun, Junjie Wang, Jingjie Fan, Guiyun Hong, Yun Wang, Mingjian Yi, Hao Huang, Lining Bao, Shuguang Zhu, Hongyan Wang","doi":"10.1002/bio.70672","DOIUrl":"10.1002/bio.70672","url":null,"abstract":"<div>\u0000 \u0000 Acetonitrile (CH3CN) is widely used in pharmaceutical and fine-chemical industries and may be released during solvent handling, exhaust-gas treatment, and wastewater-treatment-related processes, posing potential environmental and occupational health risks. However, its relatively low chemical reactivity makes rapid detection challenging. In this work, an urchin-like hierarchical CuCo2O4 spinel oxide was developed as a cataluminescence (CTL) sensing material for rapid acetonitrile detection. The material was synthesized by a facile hydrothermal method and characterized by SEM, HRTEM, BET, XRD, FT-IR, and XPS. The results reveal a three-dimensional hierarchical architecture with mesoporous characteristics, a stable spinel framework, and oxygen-related surface species. Under optimized conditions of 194°C and 350 mL min−1, the sensor exhibited a linear response over 7.3–730 ppm, with R2 = 0.9834 and a detection limit of 1.21 ppm (S/N = 3). The response and recovery times were 3 and 37 s, respectively, with good repeatability (RSD = 3.02%). The enhanced CTL performance is attributed to the hierarchical structure and oxygen-related surface chemistry, which facilitate gas transport, acetonitrile adsorption, and catalytic oxidation. These results demonstrate the potential of hierarchical CuCo2O4 for rapid acetonitrile detection.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149344375","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

Multispectral and Computational Modeling Analysis of the Kinetic Inhibition and Binding Properties of Inonotus obliquus Extract on Xanthine Oxidase 斜叶牛蒡提取物对黄嘌呤氧化酶的动力学抑制和结合特性的多光谱和计算模型分析。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-05 DOI: 10.1002/bio.70671

Jingchen Wei, Jiahui Chen, As-Sazzad Mahmud, Yuting Shu, Jing Wang, Helong Bai, Lina Chen, Kh. Ahammad uz Zaman, Md Afjalus Siraj

{"title":"Multispectral and Computational Modeling Analysis of the Kinetic Inhibition and Binding Properties of Inonotus obliquus Extract on Xanthine Oxidase","authors":"Jingchen Wei, Jiahui Chen, As-Sazzad Mahmud, Yuting Shu, Jing Wang, Helong Bai, Lina Chen, Kh. Ahammad uz Zaman, Md Afjalus Siraj","doi":"10.1002/bio.70671","DOIUrl":"10.1002/bio.70671","url":null,"abstract":"<div>\u0000 \u0000 Xanthine oxidase (XO) is a key enzyme in uric acid (UA) metabolism. The extracts of Inonotus obliquus (I. obliquus) have the potential to inhibit the activity of XO. In this study, the contents of protocatechuic aldehyde (PAH) and protocatechuic acid (PA) from I. obliquus were quantitatively analyzed using high-performance liquid chromatography (HPLC). The two compounds are similar in structure, but the difference in their substituents may lead to variations in their ability to interact with enzymes. Spectroscopic analyses of fluorescence quenching, synchrotron fluorescence, three-dimensional fluorescence, and circular dichroism show that PAH/PA has an obvious quenching effect on XO due to hydrogen bonding and van der Waals forces, and it is capable of altering the secondary structure of XO. Docking studies reveal that PAH/PA targets the Mo-Pt domain within XO's active center, with hydrogen bonds and hydrophobic forces being essential for the binding process. The molecular dynamics simulation revealed that the PAH + XO complex exhibited greater stability, compactness and stronger hydrogen bonding interactions compared with the PA + XO complex, indicating its potential as a more stable therapeutic candidate. Results from this study delineate the XO-inhibitory capacity of PAH and PA derived from I. obliquus, forming a rationale for subsequent inhibitor development.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149335854","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

Activatable Fluorescent Probe for Real-Time Hydrogen Peroxide Imaging in Cells and Diabetic Wounds 可激活荧光探针用于细胞和糖尿病伤口的过氧化氢实时成像。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-05 DOI: 10.1002/bio.70674

Dan-Xian Cai, Xiao-Bin Feng, Jing-Jing Qiao, Tian-Yi Ding, Qi-Zi Chen, Xiao-Hong Gu, Dan-Dan Xu, Hua-Jun Liu, Shu-Yi Zou

{"title":"Activatable Fluorescent Probe for Real-Time Hydrogen Peroxide Imaging in Cells and Diabetic Wounds","authors":"Dan-Xian Cai, Xiao-Bin Feng, Jing-Jing Qiao, Tian-Yi Ding, Qi-Zi Chen, Xiao-Hong Gu, Dan-Dan Xu, Hua-Jun Liu, Shu-Yi Zou","doi":"10.1002/bio.70674","DOIUrl":"10.1002/bio.70674","url":null,"abstract":"<div>\u0000 \u0000 Persistent inflammation and compromised tissue regeneration make diabetic wounds (DWs) a severe complication of diabetes mellitus (DM), often resulting in poor clinical outcomes. The scarcity of reliable markers for early evaluation creates a need for sensitive, minimally invasive approaches that can follow disease status. We investigated HD-H2O2, a fluorescent reporter built on a hemicyanine scaffold, for selective recognition of hydrogen peroxide (H2O2). Characterization of its analytical and biological properties demonstrated preferential H2O2 responsiveness, physicochemical stability, and suitable biocompatibility. In biological models relevant to DW, probe activation allowed H2O2-associated changes to be visualized by fluorescence. These observations support the use of HD-H2O2 to follow H2O2 variations in real time during diabetes-related pathological processes. The findings also advance understanding of oxidative stress in diabetic injury and provide an analytical foundation for subsequent studies of diagnosis and treatment.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149344374","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

Sulfur and Nitrogen-Doped Carbon Quantum Dots for Selective Sensing of Mercury Ions and Its Application in Breast Cancer Cell Imaging 硫氮掺杂碳量子点选择性感应汞离子及其在乳腺癌细胞成像中的应用。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-04 DOI: 10.1002/bio.70659

Pinkeymayee Patel, Deepak Sahu, Eeshara Naik, Pradeep Kumar Naik, Aruna Kumar Barick, Bigyan Ranjan Jali, Priyaranjan Mohapatra

{"title":"Sulfur and Nitrogen-Doped Carbon Quantum Dots for Selective Sensing of Mercury Ions and Its Application in Breast Cancer Cell Imaging","authors":"Pinkeymayee Patel, Deepak Sahu, Eeshara Naik, Pradeep Kumar Naik, Aruna Kumar Barick, Bigyan Ranjan Jali, Priyaranjan Mohapatra","doi":"10.1002/bio.70659","DOIUrl":"10.1002/bio.70659","url":null,"abstract":"<div>\u0000 \u0000 Here, a straightforward and environmentally friendly fluorescent S- and N-doped carbon quantum dots (S,N-CQDs) with a high blue fluorescence emission are synthesized for the ultrasensitive Hg2+ metal ion detection. The carbonization method uses urea and L-cysteine as carbon sources. UV–visible, fluorescence, and fourier-transform infrared spectroscopic are employed to study the optical characteristics of the synthesized S,N-CQDs. UV–Vis spectrum reported a shoulder at about 340 nm indicating the formation of CQDs. The fluorescence spectrum displayed a prominent emission peak centered at around 423 nm, confirming the blue fluorescent CQDs. FTIR revealed various functional groups and chemical bonds present, which established the successful synthesis of the S,N-CQDs. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy are employed to study the nanostructure and morphology that support the formation of the S,N-CQDs. The stability and surface charge of as-synthesized S,N-CQDs are shown by zeta potential testing. The BET analysis reported the surface area and total pore volume of the synthesized S,N-CQDs as 2.74 and 0.004 cm3 g−1, respectively, with the average pore diameter of 2.43 nm, confirming the micro/mesoporous nature of the synthesized S,N-CQDs. The Hg2+ metal ion sensing was investigated using fluorimetry that reported limit of detection (LOD) 10 nM with a linear sensing range of 0–600 ppb. Finally, the fluorescence imaging experiment using breast cancer cells exhibited its practical utility in biological samples.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149326904","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

Solvent-Dependent Photophysics and Nonlinear Optical Properties of a Triazolobenzanthrone: Role of Hydrogen Bond-Assisted Intramolecular Charge Transfer 三唑苯并蒽酮的溶剂依赖性光物理和非线性光学性质：氢键辅助分子内电荷转移的作用。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-03 DOI: 10.1002/bio.70664

Megharaj B. Naik, Divya Jattu Gouda, B. Siddlingeshwar, Elena M. Kirilova, Romans Fridmans, Sudeeksha Chandrashekhar Hanehalli, H. M. Suresh Kumar, Anil B. Naik

{"title":"Solvent-Dependent Photophysics and Nonlinear Optical Properties of a Triazolobenzanthrone: Role of Hydrogen Bond-Assisted Intramolecular Charge Transfer","authors":"Megharaj B. Naik, Divya Jattu Gouda, B. Siddlingeshwar, Elena M. Kirilova, Romans Fridmans, Sudeeksha Chandrashekhar Hanehalli, H. M. Suresh Kumar, Anil B. Naik","doi":"10.1002/bio.70664","DOIUrl":"10.1002/bio.70664","url":null,"abstract":"<div>\u0000 \u0000 The photophysical, solvatochromic, and nonlinear optical properties of Benzo[10,1]phenanthro[2,3- d][1,2,3]triazol-7(3H)-one were investigated using both experimental and computational methods. The molecule exhibits weakly solvatochromic absorption but strongly red-shifted emission (~120 nm), indicating the formation of a polar intramolecular charge transfer (ICT) excited state. The Lippert–Mataga analysis shows poor correlation but strong linearity in protic solvents, confirming the dominance of hydrogen bonding interactions over dielectric effects. Further, solvent polarity was analyzed using three complementary solvatochromic models: the Kamlet–Abboud–Taft (KAT), Catalán, and Laurence scales. Lifetime and quantum yield measurements reveal enhanced nonradiative decay in protic solvents due to hydrogen bond-assisted relaxation. Computational analysis confirms a compact ICT state with charge transfer from the triazole donor to the carbonyl acceptor. Z-scan measurements demonstrate reverse saturable absorption, positive nonlinear refraction, and strong third-order susceptibility, supported by hyperpolarizability calculations. The results establish hydrogen bond-assisted ICT as the central mechanism, explained using both photophysical and nonlinear optical behavior, highlighting the potential of the molecule for applications in optical limiting and photonic devices.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149326903","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

Band Engineering via Back Surface Field Layer for High-Performance Self-Powered CZTSSe Thin-Film Near-Infrared Photodetectors 基于后表面场层的高性能自供电CZTSSe薄膜近红外探测器的波段工程。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-03 DOI: 10.1002/bio.70668

Yongmao Chi, Youwei Zhang, Yiheng Zhang, Jiang Zhao

{"title":"Band Engineering via Back Surface Field Layer for High-Performance Self-Powered CZTSSe Thin-Film Near-Infrared Photodetectors","authors":"Yongmao Chi, Youwei Zhang, Yiheng Zhang, Jiang Zhao","doi":"10.1002/bio.70668","DOIUrl":"10.1002/bio.70668","url":null,"abstract":"<div>\u0000 \u0000 To meet the application requirements of high sensitivity, low dark current, and self-powered near-infrared photodetection, a Cu2ZnSn(S,Se)4 (CZTSSe) thin-film photodetector is designed and optimized in this work via SCAPS-1D numerical simulation. This study investigates the effects of key parameters of the absorber layer, window layer, and back surface field (BSF) layer on the quantum efficiency, dark current, responsivity, and detectivity of the device. It also clarifies the performance enhancement mechanism from the perspectives of band structure engineering and dark current suppression. The introduction of the BSF layer creates a favorable back surface field at the rear interface of the device, which effectively suppresses the transport of minority carriers to the back electrode, reduces interface recombination and dark current, and thus significantly improves the device performance. Among the investigated BSF materials, Cu2O exhibits the optimal performance enhancement effect owing to its well-matched band alignment with CZTSSe. After further optimization of the layer thickness, doping concentration, and defect density, the photodetector achieves a high responsivity (0.79 A/W) and detectivity (9.32 × 1012 Jones) at a wavelength of 1020 nm, while maintaining a low dark current. The results demonstrate that the optimized device holds promising application potential in near-infrared photodetection.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149326886","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

Thermal Behavior, Crystallization Kinetics, and Near 2 μm Emission of Tm3+ Doped TeO2-BaO-Nb2O5 Glasses Tm3+掺杂TeO2-BaO-Nb2O5玻璃的热行为、结晶动力学和近2 μm发射

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-03 DOI: 10.1002/bio.70670

Tingyang Chen, Di Liu, Zhaojing Kuang, Ying Tian, Liaolin Zhang, Junjie Zhang

{"title":"Thermal Behavior, Crystallization Kinetics, and Near 2 μm Emission of Tm3+ Doped TeO2-BaO-Nb2O5 Glasses","authors":"Tingyang Chen, Di Liu, Zhaojing Kuang, Ying Tian, Liaolin Zhang, Junjie Zhang","doi":"10.1002/bio.70670","DOIUrl":"10.1002/bio.70670","url":null,"abstract":"<div>\u0000 \u0000 In this work, a series of Tm3+-doped TeO2-BaO-Nb2O5 glasses were designed to elucidate the relationship between rare-earth incorporation, thermal kinetic evolution, crystallization behavior, and near 2 μm emission properties. Differential scanning calorimetry (DSC) combined with kinetic analyses was employed to reveal the concentration-dependent evolution of glass transition and crystallization kinetics. The apparent activation energies associated with glass transition (Eg) and crystallization (Ec) were evaluated using multiple kinetic models. With increasing Tm2O3 concentration, the mean Eg increases from 567.25 to 1080.69 kJ/mol, whereas the mean Ec initially increases from 279.09 to 328.85 kJ/mol and subsequently decreases to 204.99 kJ/mol, indicating concentration-dependent changes in thermal relaxation and crystallization processes. Avrami analysis provided insight into the possible crystallization behavior under the adopted kinetic models and non-isothermal DSC conditions. XRD of heat-treated samples supports this mechanism, showing one weak peak indicative of incipient surface crystallization nucleation, as predicted by kinetics. Optical measurements reveal that the glass containing 1.25 mol% Tm2O3 exhibits the strongest 1.8 μm emission and a relatively long fluorescence lifetime of 1.635 ms. These findings provide insights into the design of thermally stable rare-earth-doped infrared luminescent glasses with tunable near-2 μm emission.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149326905","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

On Methodological Problems Upon Determining the Chemiluminescence Quantum Yield. Case of the Luminol Chemiluminescence 化学发光量子产率测定的方法学问题。鲁米诺化学发光的案例。

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-03 DOI: 10.1002/bio.70673

Yurii B. Tsaplev, Olga I. Yablonskaya, Galina F. Fedorova, Vladimir V. Naumov, Aleksei V. Trofimov

引用次数: 0

Green–Emitting Terbium(III) Complexes With Tunable Optoelectronic Properties Enabled by Functionalized Bipyridine Ligands 功能化联吡啶配体实现具有可调谐光电性能的绿色发光铽（III）配合物

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-02 DOI: 10.1002/bio.70665

Sonia Redhu, Devender Singh, Vandana Aggarwal, Anuj Dalal, Rachna Dhankhar, Ajay Kumar, Sumit Kumar, Rajender Singh Malik, Parvin Kumar, Jayant Sindhu

{"title":"Green–Emitting Terbium(III) Complexes With Tunable Optoelectronic Properties Enabled by Functionalized Bipyridine Ligands","authors":"Sonia Redhu, Devender Singh, Vandana Aggarwal, Anuj Dalal, Rachna Dhankhar, Ajay Kumar, Sumit Kumar, Rajender Singh Malik, Parvin Kumar, Jayant Sindhu","doi":"10.1002/bio.70665","DOIUrl":"https://doi.org/10.1002/bio.70665","url":null,"abstract":"<div>\u0000 \u0000 Four new heteroleptic terbium(III) complexes of general composition [Tb(tfpd)3N] were synthesized via a facile one pot approach using 4,4,4-trifluoro-1-phenyl-1,3-butanedione (tfpd) as the β-diketonate ligand and substituted 2,2′-bipyridine derivatives as ancillary co-ligands. Elemental (CHN) analysis, along with FT-IR and NMR spectroscopy, confirmed the formation of stable eight-coordinate Tb3+ complexes involving O, O– and N, N– donor coordination. The compounds exhibit wide optical band gaps, indicating semiconducting behavior and show good thermal stability, as evidenced by thermogravimetric analysis. Photoluminescence studies reveal Tb3+-centered green emission governed by the 5D4 → 7F5 transition at 547 nm. CIE chromaticity coordinates confirm bright green emission for complexes E1–E3, whereas E4 shows a slight blue shift due to ligand centered contributions. The results show that varying ancillary ligands effectively tunes the structural and photophysical properties of Tb(III) complexes, highlighting their potential for optoelectronic and display applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149311254","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 Dual-Functional Peptidyl Probe for Fluorometric and Colorimetric Detection of Hg2+ and S2− in Real Food Samples and Biological Systems 用于实际食品样品和生物系统中Hg2+和S2−荧光和比色检测的双功能肽基探针

IF 2.8 4区化学

Luminescence Pub Date : 2026-11-02 DOI: 10.1002/bio.70669

Yuanli Zhang, Kunmin Huang, Mengying Jia, Yi Ren, Shiyi Xiong, Peng Wang

{"title":"A Dual-Functional Peptidyl Probe for Fluorometric and Colorimetric Detection of Hg2+ and S2− in Real Food Samples and Biological Systems","authors":"Yuanli Zhang, Kunmin Huang, Mengying Jia, Yi Ren, Shiyi Xiong, Peng Wang","doi":"10.1002/bio.70669","DOIUrl":"https://doi.org/10.1002/bio.70669","url":null,"abstract":"<div>\u0000 \u0000 As two notorious pollutants, the release of excessive mercury ions (Hg2+) and sulfur ions (S2−) poses serious risks to food safety and human health, so it is imperative to achieve precise detection of Hg2+ and S2−. Herein, a novel bifunctional peptidyl probe NHK was synthesized with dipeptide backbone (His-Lys-His) and the 7-nitro-2,1,3-benzoxadiazole (NBD) fluorescent group, thereby effectively enabling colorimetric and fluorescence detection of Hg2+ and S2−. The detection limits for Hg2+ and S2− were 8.6 and 42.1 nM, respectively. NHK exhibited low cytotoxicity and achieved the imaging of Hg2+ and S2− in two biological systems. Subsequently, NHK successfully achieved quantitative analysis of Hg2+ and S2− in water samples with satisfactory accuracy. NHK has been successfully applied to the visual detection of Hg2+ and S2− residues on the surfaces of three food samples. Furthermore, the NHK-based test strips developed were highly suitable for the visual detection of Hg2+ and S2− under two different lights. More importantly, we not only designed an ultrasensitive INHIBIT molecular logic gate to accelerate the integrated application of NHK technology in intelligent devices but also developed a portable sensing platform based on a smartphone color recognition application, enabling semiquantitative detection of Hg2+ and S2−.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149311157","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