Luminescence最新文献

{"title":"An Efficient Fluorescent Probe Based on Triphenylimidazole End-Capped Diketopyrrolopyrrole for Selective Detection of CN− and TFA Through On–Off–On Response","authors":"Arvind Misra,&nbsp;Rimpi Bhandari,&nbsp;Mohammed Kaleem,&nbsp;Ravisen Rai,&nbsp;Tripathi Shivam S. Kumar","doi":"10.1002/bio.70308","DOIUrl":"10.1002/bio.70308","url":null,"abstract":"<div>\u0000 \u0000 <p>A triphenyl-imidazole end-capped donor–acceptor type potential molecular probe <b>3</b> has been designed and synthesized. Probe <b>3</b> upon interaction with different classes of metal ions/anions and NPPs displayed high selectivity with CN⁻ anion (LOD = 20.42 nM) through fluorescence “turn-<i>Off</i>” response and a naked-eye sensitive visible color change. Job's plot analysis revealed a 1:2 binding stoichiometry. The interaction of <b>3</b>.CN⁻ with trifluoroacetic acid (TFA) showed reversible behavior wherein the intensity of the probe rejuvenated, fluorescence “turn <i>On-Off-On</i> response,” along with a change in color of the medium. The change in rate constants and fluorescence lifetime of the probe suggested that the interaction of probe with CN⁻ occurred in two steps: H-binding and deprotonation of –<i>N</i>H functions of imidazolyl units. The mode of binding of probe with CN⁻ was confirmed by ¹H NMR, FTIR, and HRMS data. The potential application of molecular probe has been examined to detect the CN⁻, TFA, and TFA vapor on test paper strips. The smartphone-based RGB analysis of paper strips also supported on-site colorimetric detection of CN⁻. Probe shows good recovery percentage of CN⁻ in real water sample analysis. The output emission using chemical inputs CN⁻ and TFA mimics the function of an IMP logic gate.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145034610","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}

{"title":"Constructing Aggregation-Induced Emission Luminogens With Significantly Improved Performance Through Local Chemical Modification From Thiophene to Thiophene Sulfone","authors":"Xiaobo He,&nbsp;Qian Wang,&nbsp;Ru Bai,&nbsp;Jinlong Wu,&nbsp;Haoyang Wang,&nbsp;Yimin Wang,&nbsp;Yiwei Zheng,&nbsp;Yong He,&nbsp;Xuebo Chen,&nbsp;Yongqiang Dong","doi":"10.1002/bio.70310","DOIUrl":"10.1002/bio.70310","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel aggregation-induced emission (AIE) system with superior performance was successfully developed through local chemical modification from thiophene to thiophene sulfone. This approach, leveraging easily accessible tetraphenylthiophene precursors, dramatically enhances the photophysical properties in a simple oxidation step. Notably, the representative 2,3,4,5-tetraphenylthiophene sulfone (<b>3c</b>) demonstrates remarkable solid-state emission characteristics with a fluorescence quantum yield of 72% and an AIE factor of 240, substantially outperforming its thiophene analog. Mechanistic investigations elucidate that while restriction of intramolecular motion in the aggregate state accounts for the AIE effects of both fluorophores, the exceptional enhancement in optical performance originates from the suppression of the sulfur's heavy-atom effect. Theoretical calculations confirm that this is achieved upon oxidation to the thiophene sulfone, which effectively blocks the nonradiative decay pathway via intersystem crossing. Furthermore, the thiophene sulfone-cored AIE luminogens (AIEgens) possess outstanding photo-, thermal, and chemical stability, ensuring their robustness for applications under demanding conditions. Consequently, these merits enabled their successful application as a sensitive fluorescent probe for sensing the glass transition temperature of polymers. This work not only provides a new paradigm for the rational design of high-performance AIEgens but also highlights the significant potential of thiophene sulfone-based AIEgens in advanced materials.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012612","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}

{"title":"Synthesis of 6(7)-Arylamino-4H-chromen-4-ones With D-A Structure and Their Photophysical Properties","authors":"Zhong-Hao Li,&nbsp;Zong Li,&nbsp;Shi-Hang Yang,&nbsp;Wen-Xi Li,&nbsp;Miao-Duo Deng,&nbsp;Zu-Qi Zhang,&nbsp;Yue-Min Pan,&nbsp;Zhao-Yang Wang","doi":"10.1002/bio.70307","DOIUrl":"10.1002/bio.70307","url":null,"abstract":"<div>\u0000 \u0000 <p>A series of 2-substituted 4<i>H</i>-chromen-4-ones <b>3a</b>–<b>3h</b> containing triphenylamine or <i>N</i>-phenylcarbazole on the benzene ring were synthesized for the first time via the Suzuki coupling reaction. The photophysical properties of the compounds and their relationship to the structure of the compounds were investigated by methods such as spectroscopic analysis, single-crystal analysis, and theoretical calculations. The systematic results indicate that compounds <b>3a</b>–<b>3h</b> have intramolecular charge transfer (ICT), aggregation-induced emission (AIE), and dual-state emission (DSE) effects with a wide range of fluorescence emission wavelengths (421–618 nm), showing the potential to be developed into a full-color fluorophore.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012792","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}

{"title":"Investigation on Optical, Thermal, and Fluorescence Studies of Iron Nickel Magnesium Tetraoxide (FeNiMgO4) Nanocomposites for Light-Emitting Diode Devices","authors":"J. Thirupathy","doi":"10.1002/bio.70311","DOIUrl":"10.1002/bio.70311","url":null,"abstract":"<div>\u0000 \u0000 <p>The iron nickel magnesium tetra-oxide (FeNiMgO₄) nanocomposites (NCs) first reported in this article were synthesized using the sol–gel method. For investigation using powder X-ray diffraction (PXRD), the presence of a cubic structure is confirmed. In Raman spectroscopy, the vibrational modes are investigated. The functional groups were determined via FTIR analysis. Using a UV–Visible-NIR spectrophotometer, the absorbance spectrum was determined. There is only one absorption peak visible at 760 nm for the FeNiMgO₄ NCs. Differential Scanning Calorimetry (DSC) analysis determines how a chemical decomposes at temperatures higher than a certain threshold in degrees Celsius. The TGA method can be used to examine the thermal stability of a material. The surface morphology is identified by utilizing scanning electron microscopy (SEM). The elemental or chemical composition can be ascertained by EDAX analysis. It is possible to examine surface features using the FeNiMgO₄ NCs used for XPS analysis. Fluorescence (FL) analysis uses ultraviolet light to excite molecules, which results in the emission of longer wavelength visible light, in order to detect and quantify fluorescence. The time observed the FL emission peak of FeNiMgO₄ NCs is first observed at 501 nm in this article, and a short wavelength with a wide bandgap can be applied to LED applications.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012791","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}

{"title":"Development of a Sensitive Fluorimetric Method for Atomoxetine Determination in Tablets and Plasma Using a Dansyl Chloride Derivatization Approach","authors":"Mohamed A. El Hamd,&nbsp;Reem H. Obaydo,&nbsp;Wael A. Mahdi,&nbsp;Sultan Alshehri,&nbsp;Ahmed Abdulhafez Hamad","doi":"10.1002/bio.70303","DOIUrl":"10.1002/bio.70303","url":null,"abstract":"<div>\u0000 \u0000 <p>New, eco-friendly method for analyzing atomoxetine (AXT) was developed using dansyl chloride as a fluorescent derivative. The method demonstrated a linear range from 50.0 to 900.0 ng mL⁻¹ with a detection limit of 15.96 ng mL⁻¹. It exhibited linearity (<i>r</i>² = 0.9995) and detection/quantification limits of 15.96 and 48.38 ng mL⁻¹, respectively. The method demonstrated accuracy recoveries of 99.56% ± 1.11% to 100.67% ± 0.79% and precision ranging from 98.87% ± 1.91% to 102.54% ± 0.51% across 200.0 to 800.0 ng/mL. The proposed method, applied to capsules, spiked plasma, and real human plasma samples, demonstrated excellent accuracy, precision, and overall performance. Validation was performed according to International Conference on Harmonization (ICH) guidelines. The % Recovery ± SD of the proposed and reported methods was similar, with <i>t</i>-values (0.27–0.76) and <i>F</i>-values (1.37–3.17), confirming the method's reliability and consistency. Sustainability profiling using the RGB12 algorithm, Green Certificate, AGREE, SPMS, and BAGI tools showed a good sustainability profile.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998741","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}

{"title":"Atomistic Modeling of Rare Earth Ions in Photonic Materials","authors":"Dennis Delali Kwesi Wayo,&nbsp;Mohd Zulkifli Bin Mohamad Noor,&nbsp;Masoud Darvish Ganji,&nbsp;Leonardo Goliatt","doi":"10.1002/bio.70297","DOIUrl":"10.1002/bio.70297","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;Rare-earth ions (REIs), especially trivalent lanthanides (Ln&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mrow&gt;&lt;/mrow&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;mo&gt;+&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {}^{3+} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), are central to photonic technologies due to sharp intra-4f transitions, long lifetimes, and host-insensitive emission. However, modeling REIs remains challenging due to localized 4f orbitals, strong electron correlation, and multiplet structures. This review summarizes atomistic modeling strategies combining quantum chemistry and machine learning (ML). Traditional methods, DFT+&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;U&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ U $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, hybrid functionals (HSE06), &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;GW&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ GW $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, and DMFT, are benchmarked; for example, hybrid DFT reproduces 4f–5d gaps in Ce&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mrow&gt;&lt;/mrow&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;mo&gt;+&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {}^{3+} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;:YAG within 0.1–0.2 eV. Wavefunction methods like CASSCF and CASPT2 capture Stark splittings and transition strengths in Eu&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mrow&gt;&lt;/mrow&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;mo&gt;+&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {}^{3+} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;:Y&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mrow&gt;&lt;/mrow&gt;\u0000 &lt;mn&gt;2&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {}_2 $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; SiO&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mrow&gt;&lt;/mrow&gt;\u0000 &lt;mn&gt;5&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {}_5 $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;. ML models trained on DFT data predict bandgaps with &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 ","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990753","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}

{"title":"Preparation and Properties of Polyurethane@TPECNPy-2 Acidochromic Micro/Nanofibrous Membranes","authors":"Baoyu Huang,&nbsp;Fengyuan Lin,&nbsp;Jialing Chen,&nbsp;Wenyang Xie,&nbsp;Anqi Xu,&nbsp;Zixin Huang,&nbsp;Xintong Zu,&nbsp;Peihui Fang,&nbsp;Xi Liu,&nbsp;Gaoyi Xie,&nbsp;Chunping Ma","doi":"10.1002/bio.70309","DOIUrl":"10.1002/bio.70309","url":null,"abstract":"<div>\u0000 \u0000 <p>Acidochromic fluorescent membranes have garnered significant research interest owing to their potential in real-time environmental monitoring and smart sensing applications. However, the rational design of membranes to optimize their structure–property interplay for enhanced acidochromic performance remains further explored. Herein, we prepared various stimulus-responsive micro/nanofibrous membranes using electrospinning technology by incorporating a fluorescent small molecule (TPECNPy-2) with thermoplastic polyurethane (TPU) to obtain specific properties. The effects of varying the TPECNPy-2 content on the chemical–physical structure and acidochromic properties of the composite membranes were analyzed. The results indicated that the addition of TPECNPy-2 had no significant impact on the chemical structure, fiber morphology, or aggregation state of the composite membranes. Morphology assessment revealed that the fabricated TPECNPy-2/TPU composite membranes exhibited uniform fiber diameters of approximately 100 nm, demonstrating excellent spinnability and reproducibility, while FL analysis revealed that all composite fiber membranes exhibited reversible acidochromic behavior. Under acid vapor exposure, the maximum fluorescence emission wavelength shifted from 505–511 to 622–625 nm. After fumigation with triethylamine, the fluorescence emission returned to its initial state, and the membrane reverted to its original color under visible light.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998740","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}

{"title":"The Synthesis and Photoluminescence Properties of Novel Sr8(Al12O24)(WO4)2: Eu2+ Green-Emitting Phosphors for White LEDs","authors":"Ningning Feng,&nbsp;Jiangshan Han,&nbsp;Hua Jiao,&nbsp;Lin Yuan,&nbsp;Rui Huang,&nbsp;Guoqing Zhang,&nbsp;Dezhong Cao,&nbsp;Boyu Wang,&nbsp;Kang Zhao","doi":"10.1002/bio.70306","DOIUrl":"10.1002/bio.70306","url":null,"abstract":"<div>\u0000 \u0000 <p>Phosphors, as the crucial material of phosphor-converted white light-emitting diodes (pc-WLEDs), have played an essential role in improving luminescent efficiency and regulating color rendering index (CRI). Hence, we have successfully synthesized a novel Eu²⁺ doped Sr₈(Al₁₂O₂₄)(WO₄)₂ (SAWO) green phosphor for the first time using the solid-state reaction, as well as systematically investigated its phase and crystal structure, luminescent properties, and thermal stability. The SAWO:<i>x</i> mol%Eu²⁺ (0.1 ≤ <i>x</i> ≤ 1.0) phosphors were confirmed to be pure phase through XRD Rietveld refinement. The excitation spectrum of SAWO:Eu²⁺ monitored at 516 nm exhibited a wide band from 250 to 450 nm, which is well matched with the PL spectrum for near-ultraviolet chips. Furthermore, it can be known that three distinct Sr³⁺ sites in as-synthesized samples are occupied by Eu²⁺ to form a broad emission band of 430–650 nm by the analysis of the crystal structure and spectra. Meanwhile, the optimal doping concentration of Eu²⁺ is 0.3 mol%, and the concentration quenching mechanism is electric dipole–dipole interactions. Additionally, the SAWO:Eu²⁺ phosphor shows higher color purity (82.0%) and excellent activation energy (<i>ΔE</i> = 0.312 eV). These results demonstrate that the SAWO:Eu²⁺ has remarkable potential as the green ingredient in a tricolor phosphor excited by near-ultraviolet in pc-WLEDs.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935245","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}

{"title":"A Novel Highly Sensitive Derivatization-Free Spectrofluorimetric Approach for Analysis of the Antifungal Terconazole in Dosage Forms, Biological Fluids, and Environmental Water Samples: Assessment of Greenness and Blueness Profiles","authors":"Omkulthom Al kamaly,&nbsp;Galal Magdy,&nbsp;Mahmoud El-Maghrabey,&nbsp;Lateefa A. Al-Khateeb,&nbsp;Mohamed A. El Hamd,&nbsp;Wejdan T. Alsaggaf,&nbsp;Moustafa O. Aboelez,&nbsp;Heba Mohammed Refat M. Selim,&nbsp;Angum M. M. Ibrahim,&nbsp;Aya Saad Radwan","doi":"10.1002/bio.70301","DOIUrl":"10.1002/bio.70301","url":null,"abstract":"<div>\u0000 \u0000 <p>In the current study, the triazole antifungal terconazole (TRZ) was determined using a novel, extremely sensitive, and environmentally friendly spectrofluorimetric approach. A methanolic solution of TRZ exhibited strong native fluorescence at 373 nm when excited at 241 nm. With a correlation coefficient of 0.9999, a straight-lined calibration curve was produced over the concentration range of 5.0–600.0 ng/mL. With quantification and detection limits of 4.64 and 1.53 ng/mL, respectively, the developed approach showed ultrasensitivity reaching the nanogram scale. Due to its great sensitivity, the method could successfully estimate TRZ in human plasma samples with low %RSD values and high recoveries (98.31–101.66). The method was also effectively used to analyze the TRZ in its vaginal suppositories and creams without interference from existing excipients. With satisfactory results, the method's applicability was expanded to the analysis of TRZ in environmental water samples. Two distinct green metrics, AGSA and MoGAPI, were applied to validate the approach's greenness profile and eco-friendliness. The method's applicability and economic feasibility were also verified using the BAGI tool. According to ICHQ2 (R2) criteria, the proposed approach underwent complete validation. This work introduced the first spectrofluorimetric method for TRZ analysis, enabling its usage in pharmacological, biological, and environmental monitoring.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929893","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}

{"title":"Synthesis and Application of Pyrene-Based Fluorescent Probe for the Continuous Detection of Cu2+ and Picric Acid","authors":"Canyao Wu,&nbsp;Yanchao Yu,&nbsp;Jun You,&nbsp;Sijia Chen,&nbsp;Wenju Wu,&nbsp;Yifang Liang","doi":"10.1002/bio.70300","DOIUrl":"10.1002/bio.70300","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel pyrene-based fluorescent probe PYS was designed and synthesized for the sequential detection of Cu²⁺ and picric acid (PA) under identical experimental conditions. In ethanol-HEPES buffer (<i>V</i>/<i>V</i> = 8:2, pH = 7.4), Cu²⁺ was selectively detected by PYS through fluorescence enhancement with a binding constant of 7.5 × 10⁴ L/mol and a detection limit of 9.3 × 10⁻⁸ mol/L, demonstrating high sensitivity and anti-interference capability. The resulting complex PYS-Cu²⁺ functioned as a probe for PA detection, exhibiting instantaneous response (2 s) and high selectivity superior to other nitroaromatic compounds. The quenching mechanism was attributed to synergistic static quenching and inner filter effects, achieving a PA detection limit of 8.7 × 10⁻⁷ mol/L, significantly below the permissible PA concentration (0.5 mg/L) specified in China's Surface Water Environmental Quality Standard (GB 3838-2002). Furthermore, a molecular logic gate system was successfully implemented using Cu²⁺ and PA as chemical inputs, highlighting its potential for sensing applications.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923783","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}