Luminescence最新文献_第2页

Photoluminescence and Thermoluminescence Studies of Beta-Irradiated Ba3CdSi2O8:Tb3+ Phosphor for LED and Dosimetry Applications LED用β -辐照Ba3CdSi2O8:Tb3+荧光粉的光致发光和热致发光研究及剂量学应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-10 DOI: 10.1002/bio.70171

Büşra Yazıcı Başaran, Vural Emir Kafadar, Fatih Mehmet Emen, Esra Öztürk, Ali İhsan Karaçolak

{"title":"Photoluminescence and Thermoluminescence Studies of Beta-Irradiated Ba3CdSi2O8:Tb3+ Phosphor for LED and Dosimetry Applications","authors":"Büşra Yazıcı Başaran, Vural Emir Kafadar, Fatih Mehmet Emen, Esra Öztürk, Ali İhsan Karaçolak","doi":"10.1002/bio.70171","DOIUrl":"https://doi.org/10.1002/bio.70171","url":null,"abstract":"<div>\u0000 \u0000 The present work reports the preparation, characterization, and photoluminescence (PL) and thermoluminescence (TL) responses of Tb3+-doped Ba₃CdSi₂O₈ phosphors. X-ray diffraction analysis confirmed the consistency of the Tb3+-doped Ba₃CdSi₂O₈ samples with the PDF 00-028-0128 card structure. The TL glow curve of the material was examined at different dopant concentrations after irradiation with a 90Sr/90Y beta source. Among the samples, Ba₃CdSi₂O₈: 5% Tb3+ exhibited the highest TL intensity compared with the other concentrations. The glow curve deconvolution method was used to determine the number of peaks, trap structure, and kinetic parameters within the TL glow curve, yielding a figure of merit (FOM) value of 1.11. The PL spectra show that the 2.0%, 3.0%, 4.0%, 5.0%, and 6.0% mole Tb3+-doped Ba₃Cd (SiO₄)₂ phosphors capture excitation energy through the 4f-5d transitions of Tb3+ ions and emit light at 417, 440, 492, 552, 589, and 628 nm, corresponding to the 5D₃–7F₅, 5D₃–7F₄, 5D₄–7F₆, 5D₄–7F₅, 5D₄–7F₄, and 5D₄–7F₃ transitions, respectively.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green Synthesis and Characterization of ZnO Nanoparticles Using Crinum Asiaticum Leaf Extracts for Biomedical Applications 生物医学用途的亚洲红叶提取物绿色合成ZnO纳米粒子及其表征

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-10 DOI: 10.1002/bio.70158

Alagan Sekar, Palaniyapillai JothiMurugan, Geetha Shanmugam, Bouzid Gassoumi, Mysoon M. Al-Ansari, P. Srinivasan, Sherlin Nivetha, Francisxavier Paularokiadoss, Sahbi Ayachi

{"title":"Green Synthesis and Characterization of ZnO Nanoparticles Using Crinum Asiaticum Leaf Extracts for Biomedical Applications","authors":"Alagan Sekar, Palaniyapillai JothiMurugan, Geetha Shanmugam, Bouzid Gassoumi, Mysoon M. Al-Ansari, P. Srinivasan, Sherlin Nivetha, Francisxavier Paularokiadoss, Sahbi Ayachi","doi":"10.1002/bio.70158","DOIUrl":"https://doi.org/10.1002/bio.70158","url":null,"abstract":"<div>\u0000 \u0000 Zinc oxide nanoparticles are increasingly recognized for their applications in optics, electronics, food packaging, and biomedical research. This study investigates the green synthesis of ZnONPs using leaf extracts from Crinum asiaticum, a tropical plant. The synthesized nanoparticles were characterized using UV–Vis spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, atomic force microscopy, and particle size analysis. The ZnONPs exhibited a strong UV–Vis absorption peak at 399 nm and a hexagonal wurtzite structure. Increasing the volume of plant extract enhanced crystallinity, as evidenced by higher peak intensities, narrower full width at half maximum, and well-defined diffraction peaks. FTIR analysis revealed functional groups in the plant extract interacting with ZnONPs, with higher extract volumes introducing additional functional groups that improved nanoparticle stability, size, and structural order. This study highlights the potential of Crinum asiaticum leaf extract as an eco-friendly and sustainable approach for ZnONP synthesis, underscoring the importance of extract volume optimization for tailoring nanoparticle properties.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809562","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

Ultrasensitive First Derivative Synchronous Spectrofluorimetric Approach for the Concurrent Quantification of COVID-19-2024 Treatment Combination Dextromethorphan and Guaifenesin in Different Matrices: Compliance With Greenness and Practicality Metrics 不同基质中右美沙芬与愈创甘油醚联合治疗COVID-19-2024的超灵敏一阶导数同步荧光法：符合绿色指标和实用性指标

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-07 DOI: 10.1002/bio.70165

Amal Abdullah Alrashidi, Mohamed M. Salim, Sitah Alharthi, Aya Saad Radwan

{"title":"Ultrasensitive First Derivative Synchronous Spectrofluorimetric Approach for the Concurrent Quantification of COVID-19-2024 Treatment Combination Dextromethorphan and Guaifenesin in Different Matrices: Compliance With Greenness and Practicality Metrics","authors":"Amal Abdullah Alrashidi, Mohamed M. Salim, Sitah Alharthi, Aya Saad Radwan","doi":"10.1002/bio.70165","DOIUrl":"https://doi.org/10.1002/bio.70165","url":null,"abstract":"<div>\u0000 \u0000 The COVID-19-2024 is one of the most frequently occurring illnesses worldwide. One of the symptoms of COVID-19 is sever cough. This study presents a novel first derivative synchronous spectrofluorimetric method that is rapid, highly sensitive, cost-effective, and environmentally safe for determining two coformulated anticough drugs, dextromethorphan and guaifenesin, simultaneously. At 281.5 and 297.4 nm, respectively, the fluorescence of guaifenesin and dextromethorphan was measured. The dilution solvent was methanol, and the wavelength difference (Δλ) was 20 nm. The method verified good linearity (r > 0.999) for both dextromethorphan (10.0–200.0 ng mL−1) and guaifenesin (30.0–800.0 ng mL−1) within the intended concentration ranges. The findings showed that the suggested method had a high degree of sensitivity, with detection limits for guaifenesin and dextromethorphan being 8.64 and 1.81 ng mL−1, respectively. For both analytes, the intraday and interday precisions were less than 0.81% RSD. With low percentage RSD values and high percentage recoveries, the developed method was successfully used to estimate the aforementioned medications in dosage forms and human plasma samples simultaneously. The CACI tool evaluated the method's economy, usefulness, and applicability, whereas MoGAPI and AGREE metrics verified its exceptional eco-friendliness and greenness. The procedure was thoroughly verified in compliance with ICH Q2 (R2) standards.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793567","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

Fluorescent Spectrofluorimetric Method for the Quantification of Harmine in Human Plasma Using Tinopal CBS-X 用Tinopal CBS-X荧光光谱法定量测定人血浆中鼠胺

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-05 DOI: 10.1002/bio.70166

Hanan Khojah, Nasser M. Aldekhail, Randa M. Almudhyan, Raghad F. Alshammari, Aya Adam, Arwa M. Alruwaili, Farah S. Aljohani, Hadeel Aljuwair, Hajar A. Almaharfi, Marwa Chalati, Khiluwd M. Alhwaiti, Salma Ibrahim, Remas M. Alsuhayyan

{"title":"Fluorescent Spectrofluorimetric Method for the Quantification of Harmine in Human Plasma Using Tinopal CBS-X","authors":"Hanan Khojah, Nasser M. Aldekhail, Randa M. Almudhyan, Raghad F. Alshammari, Aya Adam, Arwa M. Alruwaili, Farah S. Aljohani, Hadeel Aljuwair, Hajar A. Almaharfi, Marwa Chalati, Khiluwd M. Alhwaiti, Salma Ibrahim, Remas M. Alsuhayyan","doi":"10.1002/bio.70166","DOIUrl":"https://doi.org/10.1002/bio.70166","url":null,"abstract":"<div>\u0000 \u0000 Harmine, a β-carboline alkaloid derived from plants like Banisteriopsis caapi and Peganum harmala, possesses significant pharmacological properties, including anti-inflammatory and neuroprotective effects, which make it a potential candidate for therapeutic applications. However, the precise determination of harmine in biological matrices, particularly human plasma, poses analytical challenges due to the complexity of the matrix. This study introduces a sensitive spectrofluorimetric method utilizing Tinopal CBS-X, a fluorescent dye, to enhance harmine determination through the formation of a stable ion-pair complex. The interaction between harmine and Tinopal CBS-X under acidic conditions led to a notable increase in fluorescence intensity (excitation at 345 nm, emission at 431 nm), enabling determination over a concentration range of 1–200 ng/mL, with limits of detection and quantification at 0.181 and 0.543 ng/mL, respectively. The method was validated in accordance with ICH guidelines, demonstrating excellent linearity (r2 = 0.9997), accuracy (99.25% recovery), and precision (RSD < 1.3%). Additionally, the method demonstrated high selectivity, as no interference from the plasma matrix was observed, confirming its reliability. Its successful application to spiked human plasma samples resulted in a mean percent recovery of 98.99%, highlighting its suitability for harmine determination in plasma matrices.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778244","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

Phytomediated Chitosan-Modified TiO2 NPs for Enhanced Photocatalytic and Potential Application for Breast Cancer Therapy 植物介导壳聚糖修饰的TiO2 NPs增强光催化作用及其在乳腺癌治疗中的潜在应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-03 DOI: 10.1002/bio.70162

Ankush Chauhan, Rajasekaran Subbarayan, Karthikeyan Ravi, Ritesh Verma, Subha Krishna Rao, Dinesh Murugan Girija, Chandrasekaran Gopalakrishnan, Garima Rana

{"title":"Phytomediated Chitosan-Modified TiO2 NPs for Enhanced Photocatalytic and Potential Application for Breast Cancer Therapy","authors":"Ankush Chauhan, Rajasekaran Subbarayan, Karthikeyan Ravi, Ritesh Verma, Subha Krishna Rao, Dinesh Murugan Girija, Chandrasekaran Gopalakrishnan, Garima Rana","doi":"10.1002/bio.70162","DOIUrl":"https://doi.org/10.1002/bio.70162","url":null,"abstract":"<div>\u0000 \u0000 This work investigates the structural, photocatalytic, and biological properties of Juglans regia leaves extract mediated chitosan-modified TiO2 nanoparticles (NPs) and Juglans regia mediated TiO2 NPs. The structural and morphological analysis conducted using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and FTIR revealed that synthesizing the TiO2 NPs using both chitosan and Juglans regia leaves extract results in lower particle size and less agglomeration in comparison to TiO2 NPs synthesized using only Juglans regia leaves extract. The photocatalytic activity for the degradation of Rhodamine B using phytomediated chitosan-modified TiO2 NPs has a remarkable degradation efficacy of 95.07% when subjected to UV–visible light. Further, phytomediated chitosan-modified TiO2 NPs have ability to reduce the E2 estrogen levels and which inhibits the growth of breast cancer cells (MCF-7) which was confirmed by yeast based XenoScreen XL YES assay, [3H] thymidine incorporation, and apoptosis gene expression (Casp 3 and Casp 9) analysis.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762105","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

Vitamin B6 Cofactor–Derived AIEE Active Luminogen for Detecting Ciprofloxacin and Levofloxacin 维生素B6辅助因子衍生的AIEE活性发光剂检测环丙沙星和左氧氟沙星

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-02 DOI: 10.1002/bio.70163

Dhvani A. Patel, Bigyan R. Jali, Suban K. Sahoo

{"title":"Vitamin B6 Cofactor–Derived AIEE Active Luminogen for Detecting Ciprofloxacin and Levofloxacin","authors":"Dhvani A. Patel, Bigyan R. Jali, Suban K. Sahoo","doi":"10.1002/bio.70163","DOIUrl":"https://doi.org/10.1002/bio.70163","url":null,"abstract":"<div>\u0000 \u0000 The present study reports an aggregation-induced emission enhancement (AIEE) luminogen (AIEEgen) NPL derived by condensing equimolar amount of vitamin B6 cofactor pyridoxal 5′-phosphate (PLP) and 3-hydroxy-2-naphthohydrazide. The AIEE characteristics of NPL was explored in mixed DMSO-HEPES buffer (pH 7.4, 10 mM) medium. The weakly yellow emissive NPL in DMSO turns to cyan emissive NPL as the fractions of HEPES (fHEPES) increased from 10% to 95% in DMSO. The results of dynamic light scattering (DLS) and scanning electron microscope (SEM) analysis supported the formation of self-aggregates of NPL. When the fluorescence spectral changes of AIEEgen NPL (fHEPES 95%, λex = 370 nm, λem = 485 nm) were examined by adding different drugs, the presence of ciprofloxacin and levofloxacin increased the fluorescence intensity of AIEEgen NPL. The changes found in the UV–Vis absorption, DLS, zeta potential and SEM supported the formation of new complex species between AIEEgen NPL and the selective drugs. The detection limits of AIEEgen NPL for ciprofloxacin and levofloxacin were estimated as low as 2.84 and 0.21 μM, respectively. Additionally, the analytical usefulness of AIEEgen NPL was investigated by quantifying ciprofloxacin and levofloxacin in real human blood serum.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749779","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

Pyrogallol-Stabilized Iridium Nanoclusters With Laccase-Like Activity for Dual Mode Detection of 2,4-Dichlorophenol 具有漆酶样活性的邻苯三酚稳定铱纳米团簇用于2,4-二氯苯酚的双模式检测

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-02 DOI: 10.1002/bio.70164

Lin Zhou, Xuan Chen, Zhanghong Guo, Haining Cui, Jinxin Ma, Qijun Song

{"title":"Pyrogallol-Stabilized Iridium Nanoclusters With Laccase-Like Activity for Dual Mode Detection of 2,4-Dichlorophenol","authors":"Lin Zhou, Xuan Chen, Zhanghong Guo, Haining Cui, Jinxin Ma, Qijun Song","doi":"10.1002/bio.70164","DOIUrl":"https://doi.org/10.1002/bio.70164","url":null,"abstract":"<div>\u0000 \u0000 Metal nanoclusters (MNCs) have attracted widespread attention due to their unique subnanometer size, tunable fluorescence emission, and excellent biocompatibility. However, the enzyme-like activity and the optical properties of MNCs are rarely exploited simultaneously. Here, iridium nanoclusters (Py-IrNCs) with excellent fluorescence properties and the laccase-like activity were synthesized by the reduction of IrCl3 with NaBH4 in the presence of pyrogallol. The laccase activity of Py-IrNCs exhibited in the catalytic transformation of 2,4-dichlorophenol (2, 4-DP) is substantially superior to that of natural laccase, which is manifested by the fact that the amount of Py-IrNCs was only 2.5% of natural laccase to achieve the same catalytic performance. In the coexisting of 4-aminoantipyrine (4-AP), a distinct color change and quench of fluorescence were observed; thus, a sensitive colorimetric and fluorescence dual-mode determination of 2,4-DP was achieved with a linear range of 0–40 μM and a limit of detection of 0.5 μM. The dual-mode detections can be mutually verified, which effectively improved the reliability of the analysis, demonstrating a promising application potential of Py-IrNCs in pollutant determination.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749778","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

Failure Mode Effects Analysis and Design of Experiments to Sensitive and Sustainable Microwave-Aided Spectrofluorophotometric Estimation of Teneligliptin and Method's Chlor-Tox Scale and Blue Applicability Grade Index Assessment 微波辅助荧光光度法测定替尼格列汀灵敏度和可持续性的失效模式效应分析与实验设计及方法的氯- tox标度和蓝色适用性等级指数评价

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-02 DOI: 10.1002/bio.70156

Pintu Prajapati, Bhumika Prajapati, Anzarul Haque, Sarfaraz Ahmad, Shailesh Shah

{"title":"Failure Mode Effects Analysis and Design of Experiments to Sensitive and Sustainable Microwave-Aided Spectrofluorophotometric Estimation of Teneligliptin and Method's Chlor-Tox Scale and Blue Applicability Grade Index Assessment","authors":"Pintu Prajapati, Bhumika Prajapati, Anzarul Haque, Sarfaraz Ahmad, Shailesh Shah","doi":"10.1002/bio.70156","DOIUrl":"https://doi.org/10.1002/bio.70156","url":null,"abstract":"<div>\u0000 \u0000 Teneligliptin hydrobromide hydrate is efficiently controls blood sugar levels while minimizing the risk of hypoglycemia. Determination of teneligliptin in commercial formulations and biological-fluids has been documented in literature using a plethora of chromatographic, spectrophotometric, and hyphenated methods and they required toxic organic solvents. But, there was no published spectrofluorophotometric technique for teneligliptin estimation. Hence, microwave-aided spectrofluorophotometric method was developed to estimate teneligliptin with using green solvents and 7-chloro-4-nitrobenzoxadiazole as a fluorescent probe. An integrated approach of white analytical chemistry and analytical quality by design was used to estimate teneligliptin in a robust, accurate, and precise manner. The failure mode effect analysis was used to identify the critical analytical method parameters and response variables. The design of experiments was used to carry forward the important analytical method parameters and response variables for response surface modeling. The proposed spectrofluorophotometric method was applied to evaluate commercially available formulations and investigate the pharmacokinetics of teneligliptin–loaded nano-carriers that was developed in-house. The fluorescent product that was derivatized using microwaves was separated and studied using mass spectrometry. After greenness and whiteness profile assessment, researchers discovered that the suggested approach to teneligliptin estimate was eco-friendly, precise, robust, rapid, economical, and easy to apply.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749780","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

Fluorescence Probes Based on Aminoboranes for the Detection of Fluoride Ions and Nitroaromatics: A Bifunctional Fluorescence Detection Platform 基于氨基硼烷的荧光探针检测氟离子和硝基芳烃：一个双功能荧光检测平台

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-02 DOI: 10.1002/bio.70159

Ruohan Li, Zhiyuan Chen, Lai Hu, Jinxing Miao, Senqiang Zhu, Rui Liu, Hongjun Zhu

{"title":"Fluorescence Probes Based on Aminoboranes for the Detection of Fluoride Ions and Nitroaromatics: A Bifunctional Fluorescence Detection Platform","authors":"Ruohan Li, Zhiyuan Chen, Lai Hu, Jinxing Miao, Senqiang Zhu, Rui Liu, Hongjun Zhu","doi":"10.1002/bio.70159","DOIUrl":"https://doi.org/10.1002/bio.70159","url":null,"abstract":"<div>\u0000 \u0000 Small-molecule-based fluorescent probes have garnered significant attention because of their excellent optical properties. Among these, multi-stimuli-responsive molecular fluorescent probes have been rapidly developed for their wide range of applications. In this study, we designed a bifunctional fluorescent probe based on three-coordinate boron compounds to detect fluoride ions and 4-nitrophenol. Two compounds NB1 and NB2, containing B-mesityl2 acceptors (A) and nitrogen-containing aromatic donors (D), were confirmed via single-crystal X-ray diffraction. The donor–acceptor (D–A) structure and substantial steric hindrance enable these compounds to exhibit efficient fluorescence emission in both liquid and solid states. Leveraging the properties of three-coordinate boron, these two compounds exhibit a visible and rapid response to fluoride ions, with detection limits of 0.41 μM for NB1 and 1.31 μM for NB2. The detection mechanism was corroborated by 19F NMR and fluorescence emission spectra. Moreover, owing to the D–A B–N unit, both compounds exhibit a significant and rapid response to 4-nitrophenol, resulting from interrupted charge transfer. These compounds serve as fluorescent probes with outstanding bifunctionality, stability, and high efficiency. Given the growing demand for multi-stimuli-responsive fluorescent probes, NB1 and NB2 possess great potential for a wide range of future sensing and detection applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749782","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

Synthesis and Characterization of Pure TiO2 and TiO2-Doped Bi2O3 Nanocomposites for Electrochemical Applications 电化学应用纯TiO2和掺杂TiO2纳米复合材料的合成与表征

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-02 DOI: 10.1002/bio.70161

S. Synthiya, T. Thilagavathi, R. Uthrakumar, Mir Waqas Alam, K. Kaviyarasu

{"title":"Synthesis and Characterization of Pure TiO2 and TiO2-Doped Bi2O3 Nanocomposites for Electrochemical Applications","authors":"S. Synthiya, T. Thilagavathi, R. Uthrakumar, Mir Waqas Alam, K. Kaviyarasu","doi":"10.1002/bio.70161","DOIUrl":"https://doi.org/10.1002/bio.70161","url":null,"abstract":"To remove toxic wastes from water bodies by using a photocatalyst is the objective of this paper. Chemically, pure TiO2 and TiO2-doped Bi2O3 nanoparticles are synthesized using the low temperature hydrothermal method. The properties of the synthesized nanoparticles were studied using various characterization methods. In addition to powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDAX), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and Fourier transform infrared (FTIR) analyses, we studied the structural and surface morphology of the nanoparticles. By analyzing those data, we can determine the average crystallite size, strain, crystallinity, the molecular composition, the grain size of the nanoparticles, the structure, shape, functional groups, and types of bonds between them. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) analyses were used for electrochemical studies. Based on these data, a study was conducted on charge transfer and specific capacitance. Photoluminescence (PL) and ultra-visible absorbance (UV–vis) spectra were used to determine the optical properties. Based on these spectra, it is possible to determine the optical bandgap of the particles and their potential as photocatalysts. Under a visible light radiation source, pure TiO2 and TiO2-doped Bi2O3 nanocomposites were used in the photocatalytic degradation of malachite green (MG) and Rhodamine-B (RhB) dyes. By studying the observations, we were able to determine the degradation efficiency, as well as the rate constant. Results showed that the TiO2-doped Bi2O3 nanocomposites showed an increase in degradation efficiency of ~0.8% for RhB dye and ~27.7% for MG dye when compared to pure TiO2 nanoparticles.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0