Journal of Fluorescence最新文献_第2页

Luminescence and Thermometric Properties of Ba₂LaSbO₆:Eu³⁺/g-C₃N₄ Mixed Materials. Ba2LaSbO6:Eu3+/g-C3N4混合材料的发光和测温性能

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-10-06 DOI: 10.1007/s10895-025-04580-9

Zitong Zhang, Shuixian Yao, Jun Cheng, Fangfang Hu, Rongfei Wei, Hai Guo

{"title":"Luminescence and Thermometric Properties of Ba2LaSbO6:Eu3+/g-C3N4 Mixed Materials.","authors":"Zitong Zhang, Shuixian Yao, Jun Cheng, Fangfang Hu, Rongfei Wei, Hai Guo","doi":"10.1007/s10895-025-04580-9","DOIUrl":"https://doi.org/10.1007/s10895-025-04580-9","url":null,"abstract":"In this study, a series of Ba2La1- xSbO6:xEu3+ (x = 0, 5, 10, 15, 20, 25 mol%) phosphors and graphitic carbon nitride (g-C3N4) powders were synthesized via a high-temperature solid-phase method. Their structural and luminescent properties are characterized by X-ray diffraction, scanning electron microscopy, and photoluminescence spectra. Upon excitation at 273 nm, Ba2LaSO6:Eu3+ exhibits pronounced red emission, demonstrating anti-thermal quenching behavior within the temperature range of 313-453 K. At 453 K, its emission intensity reaches 131.3% of its initial intensity measured at 313 K. In contrast, g-C3N4 shows rapid thermal quenching, with emission intensity dropping to 12.0% at 573 K compared to that at 313 K. A mixed material, composed of Ba2LaSO6:10 mol%Eu3+ and g-C3N4, demonstrates dual-mode thermometric performance. Using fluorescence intensity ratio (FIR), the maximum absolute sensitivity (Sa) and relative sensitivity (Sr) are determined to be 1.34% K-1 (522 K) and 1.53% K-1 (368 K), respectively. Temperature characterization using color coordinate (CIE) shifts achieves maximum Sa and Sr values of 0.16% K-1 (313 K) and 0.63% K-1 (313 K), respectively. Additionally, the mixed material exhibits excellent repeatability, achieving a repeatability parameter (R) of 98.8% for FIR and 98.9% for CIE measurements across five temperature cycles. These results underscore the potential of the mixed material for self-calibrating optical thermometers.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145238809","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

Quantum Dots: Catalysts for a New Era of Precision Medicine and Biomedical Innovation. 量子点：精准医学和生物医学创新新时代的催化剂。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-10-06 DOI: 10.1007/s10895-025-04452-2

Ali Alsuraifi, Mohammed M Mouzan, Abdullah Algzaare, Zaid Aqeel, Umalbaneen I Al-Essa, Noor Alhuda R Mohammed, Abdullah Ayad

{"title":"Quantum Dots: Catalysts for a New Era of Precision Medicine and Biomedical Innovation.","authors":"Ali Alsuraifi, Mohammed M Mouzan, Abdullah Algzaare, Zaid Aqeel, Umalbaneen I Al-Essa, Noor Alhuda R Mohammed, Abdullah Ayad","doi":"10.1007/s10895-025-04452-2","DOIUrl":"https://doi.org/10.1007/s10895-025-04452-2","url":null,"abstract":"Quantum dots have emerged as transformative nanomaterials whose extraordinary optical and electronic properties are revolutionizing precision medicine and biomedical innovation. This comprehensive review synthesizes multidisciplinary advances from cutting-edge eco-friendly and biogenic synthesis methods to sophisticated surface modification strategies such as ligand engineering, zwitterionic polymer coatings, and congeneric passivation, which together increase biocompatibility, reduce nonspecific binding, and prolong in vivo circulation. We explore the development of multifunctional hybrid nanocomposites, including QD-gold nanostars and QD/MoS₂ systems, which exhibit remarkable performance in multimodal imaging, fluorescence-guided surgery, and smart drug delivery applications. Furthermore, this review highlights the pivotal role of QDs in photothermal and photodynamic therapies, where their capacity to convert light into localized therapeutic effects paves the way for innovative cancer and dental treatments. Emphasis is placed on the integration of QDs as traceable carriers for targeted drug delivery, enabling real-time monitoring and controlled release via pH-sensitive and enzyme-responsive systems. Despite persistent challenges such as scalability, reproducibility, and concerns over heavy metal toxicity, ongoing interdisciplinary research is steadily overcoming these hurdles. By merging innovative synthesis, precise surface engineering, and strategic hybridization, QDs are positioned as critical components of next-generation diagnostic and therapeutic platforms that promise personalized, minimally invasive, and highly effective treatment modalities.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145232816","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

CaSi₂O₅:Sm³⁺ Orange -Red Emitting Phosphors for Latent Fingerprint Detection Application. CaSi2O5:Sm3+橙红色发光荧光粉在潜在指纹检测中的应用。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-10-04 DOI: 10.1007/s10895-025-04574-7

Pranjal Pathak, Janita Saji, Durga Verma, Brijlata Sharma, Anup Mishra, Vikas Dubey

{"title":"CaSi2O5:Sm3+ Orange -Red Emitting Phosphors for Latent Fingerprint Detection Application.","authors":"Pranjal Pathak, Janita Saji, Durga Verma, Brijlata Sharma, Anup Mishra, Vikas Dubey","doi":"10.1007/s10895-025-04574-7","DOIUrl":"https://doi.org/10.1007/s10895-025-04574-7","url":null,"abstract":"Orange-red emitting CaSi2O5:xSm3+ (x = 0.1, 0.2, 0.5, 1, 1.5, 2, and 2.5 mol% of Sm3+) phosphors were synthesized by a high-temperature solid-state reaction. In this study, the crystal structure, phase purity, functional group presence, and their bending and stretching vibrations, photoluminescence (PL) spectra, thermoluminescence (TL) spectra, and colour purity was systematically investigated. The phosphor exhibits a strong excitation with the charge transfer band (CTB) of O2- and Sm3+ at 263 nm. Under 263 nm excitation, the CaSi2O5:Sm3+ phosphor shows characteristic peaks at 595 nm and 629 nm, which are attributed to the characteristic 4G5/2→6H7/2 and 4G5/2→6H9/2 transitions of the Sm3+ ions, respectively. The doping concentration x = 2 mol% is found to be the optimal doping concentration. The CIE coordinates of the optimal concentration phosphor CaSi2O5:2Sm3+ are found to be (0.589, 0.41) in the orange-red region with a colour purity percentage of 96.93%. Judd-Ofelt analysis was also carried out with the photoluminescence emission spectrum, in order to investigate the transition dynamics. Fingerprints were developed on non-porous glass and aluminium foil substrates. The experimental results display that the CaSi2O5:xSm3+ phosphors have a huge potential for practical applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145225271","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

Perylene Diimides (PDI) with Electronic Donor Core-Substituted Structures for Application of Solar Cell Materials by Theoretical Study (Showing PCE > 18.7%). 具有电子给体核取代结构的苝二酰亚胺（PDI）在太阳能电池材料中的应用的理论研究（显示PCE > 18.7%）。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-10-04 DOI: 10.1007/s10895-025-04499-1

Ali Raza Ayub, Sidra Rafiq, Umer Yaqoob, Salba, Hui Li

{"title":"Perylene Diimides (PDI) with Electronic Donor Core-Substituted Structures for Application of Solar Cell Materials by Theoretical Study (Showing PCE > 18.7%).","authors":"Ali Raza Ayub, Sidra Rafiq, Umer Yaqoob, Salba, Hui Li","doi":"10.1007/s10895-025-04499-1","DOIUrl":"https://doi.org/10.1007/s10895-025-04499-1","url":null,"abstract":"Five novel unfused non-fullerene acceptors were rationally designed via molecular engineering of a benchmark PDI-based molecule, achieving predicted power conversion efficiencies (PCEs) exceeding 18.7%. Comprehensive theoretical investigations employing density functional theory (DFT) and time-dependent DFT (TD-DFT) with the 6-31G(d, p) basis set elucidated the planarity of molecular geometries, molecular electrostatic potential (MEP) distributions, excitation energies, light-harvesting efficiencies, molar absorption coefficients, binding energies, density of states, and transition density matrices. The tailored structures exhibit strong optical absorption in the 589-618 nm range and favorable ealectronic transitions, as demonstrated by UV-Vis spectral simulations and transition density matrix analyses. Enhanced photovoltaic characteristics were observed, including reduced hole reorganization energies (as low as -0.26 eV, compared to 0.30 eV for the reference PDI), optimal open-circuit voltages (Voc) between - 1.32 and 1.54 eV, and improved charge injection capabilities. These advances are anticipated to translate into superior photovoltaic performance in polymer solar cells (PSCs), with the simulated PCE values surpassing those of the experimentally reported parent molecule. Collectively, these results highlight the significant promise of the newly designed acceptors for next-generation PSC technologies.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145225354","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

Optimizing Charge Transport Properties of Dithieno[3,2-b:2',3'-d] Pyrrole-Based Hole Transport Materials for Perovskite Solar Cells: a DFT Study. 钙钛矿太阳能电池中二噻吩[3,2-b:2',3'-d]吡咯基空穴输运材料的电荷输运性能优化：DFT研究

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-10-03 DOI: 10.1007/s10895-025-04565-8

Nabeel Shahzad, Muhammad Ishaq, Aqsa Laraib, Tazeem Fatima, Rida Fatima, Waqas Akram, Javed Iqbal

{"title":"Optimizing Charge Transport Properties of Dithieno[3,2-b:2',3'-d] Pyrrole-Based Hole Transport Materials for Perovskite Solar Cells: a DFT Study.","authors":"Nabeel Shahzad, Muhammad Ishaq, Aqsa Laraib, Tazeem Fatima, Rida Fatima, Waqas Akram, Javed Iqbal","doi":"10.1007/s10895-025-04565-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04565-8","url":null,"abstract":"Designing novel hole-transporting materials with optimal electronic properties, efficient charge mobility, and good processability is essential to advancing the performance of perovskite solar cells (PSCs). In this study, we report the rational design and quantum chemical investigation of a series of pyrrole-based small molecules (H16-A to H16-H) employing a donor-π-acceptor (D-π-A) configuration. The molecular scheme features a pyrrole core and dimethoxy triphenylamine (DMTPA) donor, bridged via a benzene linker and different electron-acceptor groups. The density functional theory (DFT) results demonstrated that designed HTMs have stabilized HOMO energy levels (-5.01 to -5.19 eV), low HOMO-LUMO energy gap (0.81 to 1.84 eV), less optical absorption on the visible region ([Formula: see text] ≤ 390 nm), and superior solubility compared with the reference molecule (H16). The low binding energy (Eb) and high light harvesting efficiency (LHE) indicated that designed HTMs have higher photocurrent flow ability. A series of charge transfer parameters related to excited state properties including charge transfer distance (Dindex), amount of charge transfer (qCT), t-index, H-index, hole-electron overlap (S±), and inter fragment charge transfer (IFCT) were computed. Moreover, low reorganization energy (0.2780 to 0.3066 eV), high hole-hopping rate (~ ×1012 s-1), larger transfer integrals (0.3083 to 0.3551 eV), and higher total amount of charge transfer revealed that designed HTMs have effective hole transport ability for PSC. The outstanding performance of molecules H16-A to H16-H highlights their strong potential as promising candidates for the development of high-efficiency perovskite solar cells, with prospective applications in future commercial photovoltaic technologies.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212867","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

Copper and Nitrogen Co-doped Fluorescent Carbon Quantum Dots as a Fluorescent ''turn-off" Sensor for Determination of Tetracyclines Antibiotics. 铜氮共掺杂荧光碳量子点作为荧光“关闭”传感器用于四环素类抗生素的检测。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-30 DOI: 10.1007/s10895-025-04572-9

Lu Gao, Haimei Zhao, Xiaodan Zhou, Yuxian Zhao, Yidi Wang, Huaixiao Geng, Jia Xu, Zhichao Zhang, Shuang Han

{"title":"Copper and Nitrogen Co-doped Fluorescent Carbon Quantum Dots as a Fluorescent ''turn-off\" Sensor for Determination of Tetracyclines Antibiotics.","authors":"Lu Gao, Haimei Zhao, Xiaodan Zhou, Yuxian Zhao, Yidi Wang, Huaixiao Geng, Jia Xu, Zhichao Zhang, Shuang Han","doi":"10.1007/s10895-025-04572-9","DOIUrl":"https://doi.org/10.1007/s10895-025-04572-9","url":null,"abstract":"Copper and nitrogen co-doped fluorescent carbon quantum dots (Cu-NCDs) were synthesized via a one-pot hydrothermal synthesis method using L-tyrosine and copper chloride as precursors. The as-prepared Cu-NCDs exhibited bright blue fluorescence (emission peak at 427 nm) with high photostability (10.5% intensity loss after 1 h irradiation at 365 nm). Upon introduction of tetracyclines antibiotics (TCs), include oxytetracycline (OTC), chlortetracycline (CTC) and tetracycline (TC), the fluorescence intensity of Cu-NCDs was selectively quenched through fluorescence resonance energy transfer (FRET), as confirmed by time-resolved fluorescence decay analysis. This phenomenon established a linear relationship between fluorescence quenching efficiency and TCs concentration. The calculated limits of detection (S/N = 3) for three target analytes were determined to be 0.24 µM (OTC), 0.56 µM (CTC), and 0.19 µM (TC), respectively. Accurate quantification of TCs residues in tap water and dairy products demonstrated recovery rates of 97.94 - 112.20% (OTC), 94.93 - 110.00% (CTC), and 97.58 - 107.67% (TC), with relative standard deviations (RSDs) below 4.16% (n = 3). Based on the paper sensor platform, on-site detection of TCs has been achieved, and visual semi quantitative analysis can be completed within 1 min.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145199576","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 and Validation of a Multiplex Fluorescent Immunochromatographic Strip for Simultaneous Quantification of MMP-9, LP-PLA₂,and hs-CRP. 同时定量MMP-9、LP-PLA2和hs-CRP的多重荧光免疫层析试纸条的研制与验证

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-29 DOI: 10.1007/s10895-025-04566-7

Laiqing Li, Yanhong Lu, Huankun Liang, Cuicui Chen, Qiang Jia

{"title":"Development and Validation of a Multiplex Fluorescent Immunochromatographic Strip for Simultaneous Quantification of MMP-9, LP-PLA2,and hs-CRP.","authors":"Laiqing Li, Yanhong Lu, Huankun Liang, Cuicui Chen, Qiang Jia","doi":"10.1007/s10895-025-04566-7","DOIUrl":"https://doi.org/10.1007/s10895-025-04566-7","url":null,"abstract":"Elevated levels of serum matrix metalloproteinase-9 (MMP-9), lipoprotein-associated phospholipase A2 (LP-PLA2), and high-sensitivity C-reactive protein (hs-CRP) have been shown to be closely associated with the onset and progression of numerous diseases. In light of this, the present study was designed to establish a multiplex fluorescence immunochromatography (FIC) method for the quantitative measurement of MMP-9, LP-PLA2, and hs-CRP in serum. The FIC methods using europium (III) (Eu3+) fluorescent microspheres for quantifying MMP-9, LP-PLA2, and hs-CRP were individually optimized and established. Subsequently, the multiplex FIC test strips (FICTS) were assembled and evaluated. The sensitivity of the multiplex FICTS for detecting MMP-9 was 0.24 ng/mL, for LP-PLA2 it was 0.17 ng/mL, and for hs-CRP it was 0.19 ng/mL. The cross-reactivity with nine potential interferents was consistently low, all below 3.00%. The average recovery rates ranged from 101.62% to 105.55%, with all coefficients of variation being less than 5%. The clinical sensitivity and specificity for all three analytes exceeded 93%. Moreover, a strong Pearson correlation was observed between the results obtained using the multiplex FICTS and those from commercial kits (Pearson r: 0.9246, 0.9009, 0.9697, respectively). The multiplex FICTS that we have designed holds great promise for point-of-care quantitative measurement of MMP-9, LP-PLA2, and hs-CRP. By enabling rapid and accurate on-site detection of these biomarkers, it provides a convenient and efficient alternative to traditional laboratory-based testing methods. This innovative approach has the potential to revolutionize the screening process for diabetic retinopathy.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145185864","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

Structural, Spectroscopic, and DFT Studies of N'-(2,4-difluorobenzylidene)-2-furoic Hydrazide for Electronic and Therapeutic Applications. 电子和治疗用N'-（2,4-二氟双酶基）-2-呋喃肼的结构、光谱和DFT研究。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-28 DOI: 10.1007/s10895-025-04561-y

C Arunagiri, S Selvakumar, S Jeyavijayan, N Karthik, I Rama, A Subashini

{"title":"Structural, Spectroscopic, and DFT Studies of N'-(2,4-difluorobenzylidene)-2-furoic Hydrazide for Electronic and Therapeutic Applications.","authors":"C Arunagiri, S Selvakumar, S Jeyavijayan, N Karthik, I Rama, A Subashini","doi":"10.1007/s10895-025-04561-y","DOIUrl":"https://doi.org/10.1007/s10895-025-04561-y","url":null,"abstract":"A single crystal of N'-(2,4-difluorobenzylidene)-2-furoic hydrazide (DFBFH) was grown using the slow evaporation method with ethanol as the solvent. Single crystal X-ray diffraction (XRD) analysis revealed that DFBFH crystallizes in the monoclinic system, space group P21/c, with unit cell parameters: a = 13.0872(12) Å, b = 7.7520(8) Å, c = 11.9055(11) Å, α = γ = 90˚, β = 110.301(4)˚, V = 1132.81(19) Å3, Z = 4, and a density of 1.467 Mg/m³. The crystal structure is stabilized by intermolecular hydrogen bonding, forming one-dimensional chains along the [001] direction through C2-H2···O2 and C6-H6···F1 interactions. Hirshfeld surface analysis was conducted to examine the voids, energy framework, and intermolecular interaction energies. The electron density distribution and nonlinear optical (NLO) properties were evaluated using density functional theory (DFT) at the B3LYP/6-311 + + G(d, p) level. Theoretical results indicate that DFBFH exhibits significantly higher hyperpolarizability than urea, suggesting promising NLO behaviour. DFBFH also shows strong fluorescence at 568 nm due to π-π* transitions enhanced by n-π* excitation. Molecular docking studies with breast cancer-related proteins (PDB IDs: 4XEO, 3O96, 5KCV, and 2YJA) yielded binding energies of - 8.2, - 8.0, - 7.9, and - 7.8 kcal/mol, respectively, indicating that DFBFH may possess notable anti-breast cancer potential.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145185917","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 Multianalyte Molecular Probe for Ultra-Sensitive Detection of Silver, Fluoride, and Cyanide Ions: Coordination Behaviour and Photophysical Insights. 一种用于超灵敏检测银、氟化物和氰化物离子的多分析物分子探针：配位行为和光物理见解。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-27 DOI: 10.1007/s10895-025-04485-7

Neha Kumari, Minati Baral, B K Kanungo

{"title":"A Multianalyte Molecular Probe for Ultra-Sensitive Detection of Silver, Fluoride, and Cyanide Ions: Coordination Behaviour and Photophysical Insights.","authors":"Neha Kumari, Minati Baral, B K Kanungo","doi":"10.1007/s10895-025-04485-7","DOIUrl":"https://doi.org/10.1007/s10895-025-04485-7","url":null,"abstract":"A novel multianalyte molecular probe, pyrogallol aldehyde-derived semicarbazone (PSC), has been developed for the ultrasensitive and selective detection of silver (Ag+), fluoride (F-), and cyanide (CN-) ions in aqueous and DMSO media. The probe exhibits distinct coordination behavior with each analyte, leading to significant changes in its photophysical properties, including fluorescence enhancement. Spectroscopic analyses (UV-VIS and fluorescence titrations) reveal detection limits in the nanomolar range, with excellent selectivity over competing ions inducing a 50-fold fluorescence enhancement via the CHEF mechanism. The chemosensor displayed a linear response to Ag+ at low concentrations, achieving a detection limit of 1.36 × 10-8 M. Upon addition of CN-, a distinct color change from colorless to reddish-pink was observed, with a detection limit of 8.94 × 10-8 M, and F- ions induced a colorless-to-green transition, with a detection limit of 3.66 × 10-7 M. Binding stoichiometry and interaction mechanisms were elucidated via Job's plot, NMR titrations, and density functional theory (DFT) calculations. This work highlights the potential of the designed probe as a powerful tool for environmental monitoring and biological applications, owing to its rapid response, high sensitivity, and multi-ion recognition capability.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145176126","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

Microbial-Modified Organosilica-Based Dual-Mode Fluorescent Probe for Zn²⁺ and pH Sensing with Potential Application in Gut Immunity Modulation. 微生物修饰的有机硅基双模荧光探针用于Zn 2 +和pH传感在肠道免疫调节中的潜在应用。

IF 3.1 4区化学

Journal of Fluorescence Pub Date : 2025-09-27 DOI: 10.1007/s10895-025-04573-8

Qing-Qing Han, Fang Chen, Zhao-Lin Zhang, Dong-Ya Chen

{"title":"Microbial-Modified Organosilica-Based Dual-Mode Fluorescent Probe for Zn²⁺ and pH Sensing with Potential Application in Gut Immunity Modulation.","authors":"Qing-Qing Han, Fang Chen, Zhao-Lin Zhang, Dong-Ya Chen","doi":"10.1007/s10895-025-04573-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04573-8","url":null,"abstract":"Crohn's disease (CD) involves chronic intestinal inflammation, often accompanied by abnormal zinc ion (Zn²⁺) homeostasis. Herein, we developed a multifunctional nanoplatform-1-DASA-ATPMS@2@Rg3-that integrates ginsenoside Rg3 with a DASA-modified silica-based composite for ratiometric Zn²⁺ sensing and anti-inflammatory therapy. The nanocomposite exhibited a distinct ratiometric fluorescence response to Zn²⁺, with a strong linear correlation (R² = 0.9969) between the intensity ratio (I₅₀₀/I₆₇₂) and Zn²⁺ concentration over 0-200 µM, enabling accurate quantification. Time-resolved fluorescence and zeta potential analyses confirmed Zn²⁺-induced coordination and electrostatic interactions, contributing to signal amplification. Additionally, the pH-dependent optical properties further support its adaptability to inflamed gut environments. This dual-functional nanoplatform not only enables precise Zn²⁺ monitoring-a crucial marker in CD progression-but also offers therapeutic benefits via Rg3-mediated immunomodulation, presenting a promising strategy for real-time inflammation sensing and intervention in CD.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145176128","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