Luminescence最新文献_第3页

A Novel Anthraquinone Derivative as a Chemiluminescence Enhancer in Luminol Assays: Insights Into the CRET Mechanism. 一种新的蒽醌衍生物作为鲁米诺检测中的化学发光增强剂：对CRET机制的见解。

IF 3 4区化学

Luminescence Pub Date : 2026-04-01 DOI: 10.1002/bio.70481

Alihan Kocabas, Almina Kucuk, Funda Ozkok, Nihal Onul, Tunc Catal

{"title":"A Novel Anthraquinone Derivative as a Chemiluminescence Enhancer in Luminol Assays: Insights Into the CRET Mechanism.","authors":"Alihan Kocabas, Almina Kucuk, Funda Ozkok, Nihal Onul, Tunc Catal","doi":"10.1002/bio.70481","DOIUrl":"10.1002/bio.70481","url":null,"abstract":"Chemiluminescence (CL) reactions are an effective reaction type frequently used in both in vivo and in vitro studies for the determination of many analytes. Some of the molecules used for this purpose are structures that act as enhancers of fluorescence-active molecules, whose activity can be enhanced via chemiluminescence resonance energy transfer (CRET). Such molecules, which are active in terms of fluorescence and operate through the CRET mechanism, are used in combination with molecules such as luminol to produce reaction systems that are more effective. In this study, a model system combining a synthesized anthraquinone derivative with luminol was investigated for its potential use as a CRET-based fluorescent enhancer. Chemical characterization of the molecule was performed using UV, IR, and fluorescence spectroscopy. Additionally, the anthraquinone sample, which was tested in conjunction with luminol as an enhancer on bloodstains, was observed to cause the bloodstains to luminesce for a longer duration and at a higher intensity than when luminol was used alone. As a result, it was observed that unlike conventional luminol enhancers, the synthesized anthraquinone molecule functions as a CRET-based fluorescent acceptor, enabling indirect signal amplification through energy transfer, and could be used as a new type of tracer in biological applications.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 4","pages":"e70481"},"PeriodicalIF":3.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147677978","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

AIE Fluorescent Probes Constructed by Introducing Acceptor-Derived Microbial Metabolite Staurosporine. 引入受体衍生微生物代谢物Staurosporine构建AIE荧光探针。

IF 3 4区化学

Luminescence Pub Date : 2026-04-01 DOI: 10.1002/bio.70468

Jingming Zhou, Xia Wang, Shijie Liu, Yuqiu Ye, Xuejing Su, Tong Wu, Yusheng Lu, Xiaoping Wu, Lijun Xie

引用次数: 0

Preparation and Luminescence Properties of BaClF: Eu³⁺ Orange Fluorescent Materials Doped With Charge Compensator M⁺ (M = Li, Na, K). 掺杂电荷补偿器M+ （M = Li, Na， K）的BaClF: Eu3+橙色荧光材料的制备及发光性能

IF 3 4区化学

Luminescence Pub Date : 2026-04-01 DOI: 10.1002/bio.70482

Dongwei Sun, Chunhua Yin, Nian Tang, Zhi Li, Dongcai Guo

{"title":"Preparation and Luminescence Properties of BaClF: Eu3+ Orange Fluorescent Materials Doped With Charge Compensator M+ (M = Li, Na, K).","authors":"Dongwei Sun, Chunhua Yin, Nian Tang, Zhi Li, Dongcai Guo","doi":"10.1002/bio.70482","DOIUrl":"https://doi.org/10.1002/bio.70482","url":null,"abstract":"BaClF: Eu3+ orange-emitting phosphor was successfully synthesized by a hydrothermal method. The luminescent properties of the material were further enhanced by adding alkali metal ions. XRD analysis confirmed the phase purity and successful synthesis of the BaClF:Eu3+, M+ phosphor. Under 393-nm excitation, the fluorescence spectrum of the synthesized product exhibited a main emission peak at 593 nm. Experimental results indicate that the quenching concentration of Eu3+ ions is 6.0 mol%. To further increase the luminescence intensity, alkali metal ions (Li+, Na+, and K+) were also introduced as charge compensators. The results showed that Li+ was identified as the most effective compensator, yielding a 2.11-fold enhancement in emission intensity. The optimal doping concentration of Li+ was determined to be 6.0 mol%. The internal quantum efficiency (IQE) was theoretically estimated using Judd-Ofelt parameters, showing a substantial increase upon Li+ doping. BaClF: Eu3+, Li+ phosphor exhibits a color purity as high as 99.6% and a correlated color temperature of 1640.3 K. This indicates that BaClF: Eu3+, Li+ is a highly promising orange-emitting phosphor and a candidate material for solid-state lighting applications.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 4","pages":"e70482"},"PeriodicalIF":3.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147724509","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

An L-Tryptophan Fluorescence Quenching Approach for Sensitive Determination of Levofloxacin in Pharmaceutical Formulations and Biological Samples. l -色氨酸荧光猝灭法灵敏测定制剂和生物样品中左氧氟沙星含量。

IF 3 4区化学

Luminescence Pub Date : 2026-04-01 DOI: 10.1002/bio.70487

Shahzad Hameed, Muhammad Naeem Khan, Mehwash Zia, Malak Ghufran Ullah, Zeeshan Hamid

{"title":"An L-Tryptophan Fluorescence Quenching Approach for Sensitive Determination of Levofloxacin in Pharmaceutical Formulations and Biological Samples.","authors":"Shahzad Hameed, Muhammad Naeem Khan, Mehwash Zia, Malak Ghufran Ullah, Zeeshan Hamid","doi":"10.1002/bio.70487","DOIUrl":"10.1002/bio.70487","url":null,"abstract":"This study developed and validated a simple, sensitive spectrofluorimetric method for quantifying levofloxacin in pure form, pharmaceutical formulations, and biological samples. The method is based on fluorescence quenching of L-tryptophan upon interaction with levofloxacin in borate buffer (pH 10.5), forming a stable complex. Following excitation at 286 nm, fluorescence emission was recorded at 362 nm, and the quenching induced decrease in emission intensity was quantitatively monitored. Key experimental parameters, including buffer pH and volume, L-tryptophan concentration and volume, were systematically optimized to enhance complex formation. Across a concentration range of 0.2-1.0 μg mL-1, a linear calibration curve with excellent correlation coefficient (R2 = 0.9997) was obtained. The method exhibited detection and quantification limits of 0.0043 and 0.014 μg mL-1, respectively. No interference from common pharmaceutical excipients was observed. Levofloxacin was successfully determined in standard solutions, commercial formulations, and biological samples. Validation according to ICH guidelines confirmed excellent precision, accuracy, and sensitivity. The method is reliable, cost effective, and suitable for routine analysis, with strong sustainability demonstrated by AGERR and BAGI assessments.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 4","pages":"e70487"},"PeriodicalIF":3.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147700525","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

Unveiling the Magnetic Ordering, Structural Phase Transition, Dynamical Stability, and Optoelectronic Properties of Orthorhombic Fluoro-Perovskite NaCoF₃. 揭示正交氟钙钛矿NaCoF3的磁有序、结构相变、动态稳定性和光电性能。

IF 3 4区化学

Luminescence Pub Date : 2026-04-01 DOI: 10.1002/bio.70486

Mahia Omar, Mohannad Al-Hmoud, Ghlamallah Benabdellah, Daoud Mansour, Riane Rabeh, Muhammad Salman Khan, Ayed M Binzowaimil, Ahmad Irfan

{"title":"Unveiling the Magnetic Ordering, Structural Phase Transition, Dynamical Stability, and Optoelectronic Properties of Orthorhombic Fluoro-Perovskite NaCoF3.","authors":"Mahia Omar, Mohannad Al-Hmoud, Ghlamallah Benabdellah, Daoud Mansour, Riane Rabeh, Muhammad Salman Khan, Ayed M Binzowaimil, Ahmad Irfan","doi":"10.1002/bio.70486","DOIUrl":"10.1002/bio.70486","url":null,"abstract":"Fluoro-perovskites have attracted considerable attention due to their distinct and adjustable electronic, magnetic, and optical properties. In this work, a comprehensive first-principles study based on density functional theory is carried out to investigate the physical properties of NaCoF3 in the orthorhombic Pnma and Cmcm phases. The results reveal that the perovskite (Pnma) phase is the ground-state structure, exhibiting a G-type antiferromagnetic configuration. Enthalpy calculations indicate a pressure-induced phase transition to the post-perovskite (Cmcm) phase at a static pressure of 8.28 GPa at 0 K, with the stability domain of the post-perovskite phase decreasing as temperature increases. Phonon dispersion analysis confirms the dynamical stability of the Pnma phase, while the Cmcm phase is stable only under external thermodynamic conditions. The Co-3d orbitals are highly influenced by the correlation effects on the electronic structure. There is intense polarization and a high absorption in the 4.0-5.0-eV range, as well as a significant anisotropy in the dielectric function and refractive index. The structural stability, antiferromagnetic ordering, insulating behavior, and anisotropic optical response of NaCoF3 make it an interesting candidate in the formation of antiferromagnetic data-storage devices and ultraviolet optoelectronic applications.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 4","pages":"e70486"},"PeriodicalIF":3.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147730655","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 Green and Ultrasensitive Spectrofluorimetric Approach for the Determination of Salbutamol: Investigation of Photo-Induced Electron Transfer Process and Application to Spiked Human Plasma, Pharmaceutical Preparations, and Content Uniformity Assessment 绿色超灵敏荧光光谱法测定沙丁胺醇：光诱导电子转移过程的研究及其在加标人血浆、药物制剂和含量均匀性评价中的应用。

IF 3 4区化学

Luminescence Pub Date : 2026-03-26 DOI: 10.1002/bio.70474

Sayed M. Derayea, Sara I. Badry, Dalia A. Nagi, Mohamed Oraby

{"title":"A Green and Ultrasensitive Spectrofluorimetric Approach for the Determination of Salbutamol: Investigation of Photo-Induced Electron Transfer Process and Application to Spiked Human Plasma, Pharmaceutical Preparations, and Content Uniformity Assessment","authors":"Sayed M. Derayea, Sara I. Badry, Dalia A. Nagi, Mohamed Oraby","doi":"10.1002/bio.70474","DOIUrl":"10.1002/bio.70474","url":null,"abstract":"<div>\u0000 \u0000 The present study describes the development of a straightforward and sensitive spectrofluorimetric approach for analyzing salbutamol (SBT). It is a short-acting β2-adrenergic agonist widely utilized in treating asthma and chronic obstructive pulmonary conditions. Several solvents, surfactants, and pH were studied, and their effects on the fluorescence activity of the drug were monitored. Fluorescence measurements were conducted using methanol as the diluting solvent, which significantly enhanced the emission signal recorded at 310 nm when excited at 280 nm. The method was validated following the International Council for Harmonization (ICH). The method demonstrated excellent linearity in concentrations ranging from 30 to 400 ng/mL, with a correlation coefficient of 0.9997. The detection limit was 6.7 ng/mL, and the quantitation limit was 20 ng/mL. The procedure exhibited high selectivity, showing no interfering liability from commonly used pharmaceutical excipients. Successful application of the method was achieved in the analysis of SBT in commercial dosage forms, spiked human plasma, and content uniformity testing. Moreover, the influence of pH on the intensity of fluorescence of SBT was used to determine the apparent pKa value of the drug. The environmental superiority of the present technique was confirmed through different green chemistry evaluation tools.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147515813","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

Explosive Detection by Aggregation-Induced Emission Materials With Non-Traditional Intrinsically Luminescent Moieties 具有非传统本征发光基团的聚集致发射材料的爆炸物探测。

IF 3 4区化学

Luminescence Pub Date : 2026-03-26 DOI: 10.1002/bio.70472

Hai Nan, Xin-Hui Wang, Wen-Hui Liu, Xia Zhou, Pei-Pei Sun, Xiao-Li Sun, Jinheung Kim, Wen-Ming Wan

引用次数: 0

Correction to “Advanced Luminescence Engineering of Inorganic Halide Perovskite Quantum Dots: Stability Enhancement, Lead-Free Design, and Optoelectronic Applications” 修正“无机卤化物钙钛矿量子点的先进发光工程：稳定性增强、无铅设计和光电应用”。

IF 3 4区化学

Luminescence Pub Date : 2026-03-24 DOI: 10.1002/bio.70470

引用次数: 0

Photophysical Interactions of CuO Nanoparticles With Nile Blue Dye: A Comprehensive Study 纳米CuO与尼罗河蓝染料的光物理相互作用的综合研究。

IF 3 4区化学

Luminescence Pub Date : 2026-03-24 DOI: 10.1002/bio.70471

Vijayakumar D. Jangannanavar, Darukaswamy Tulahalli Hirematada, Hanumantagouda Basavanagoudra, Sushilabai Adigond, Kotresh M. Goudar

{"title":"Photophysical Interactions of CuO Nanoparticles With Nile Blue Dye: A Comprehensive Study","authors":"Vijayakumar D. Jangannanavar, Darukaswamy Tulahalli Hirematada, Hanumantagouda Basavanagoudra, Sushilabai Adigond, Kotresh M. Goudar","doi":"10.1002/bio.70471","DOIUrl":"10.1002/bio.70471","url":null,"abstract":"<div>\u0000 \u0000 In this study, CuO nanoparticles (NPs) were synthesized via a simple precipitation method and characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopy (EDS). The CuO NPs exhibited high crystallinity with a monoclinic phase and an average crystalline size of 22 nm. UV–visible spectroscopy revealed an excitonic absorption peak at 251 nm and a bandgap of 3.78 eV, while photoluminescence (PL) studies showed a distinct emission peak at 379 nm, attributed to radiative recombination and defects in the NPs structure. The interaction between CuO NPs and NB-690 dye was explored through UV–visible and fluorescence spectroscopy, showing enhanced absorption and fluorescence quenching upon complex formation. The apparent association constant (Kapp) was determined to be 1 × 106 M−1, with a low limit of detection (12 nM). Stern–Volmer analysis revealed a binding constant of 6.21 × 105 M−1 and a binding site value of 1.7 in the excited state. These results highlight the potential of CuO NPs for applications in environmental monitoring, biomedical imaging, and drug delivery, demonstrating their ability to modulate light absorption and fluorescence in complex biological and chemical systems.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147505641","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 Quenching–Based Quantification of Famotidine in Pharmaceutical Formulations and Biological Fluids Using Eosin Y 荧光猝灭法莫替丁在制剂和生物液中的定量研究

IF 3 4区化学

Luminescence Pub Date : 2026-03-24 DOI: 10.1002/bio.70463

Muhammad Naeem Khan, Nazma Begum, Shahzad Hameed, Muhammad Nisar, Mehwash Zia, Zafran Ullah

{"title":"Fluorescence Quenching–Based Quantification of Famotidine in Pharmaceutical Formulations and Biological Fluids Using Eosin Y","authors":"Muhammad Naeem Khan, Nazma Begum, Shahzad Hameed, Muhammad Nisar, Mehwash Zia, Zafran Ullah","doi":"10.1002/bio.70463","DOIUrl":"10.1002/bio.70463","url":null,"abstract":"<div>\u0000 \u0000 A simple, selective, and economic spectrofluorimetric procedure was developed for famotidine determination with Eosin Y. For famotidine determination, the fluorescence intensity of Eosin Y was quenched with famotidine. The decrease was due to forming an ion-pair complex between famotidine and Eosin Y. Maximum fluorescence was noted at 546 nm at a 301 nm excitation wavelength. The investigation focused on different parameters affecting the formation of complexes. A correlation coefficient of 0.9969 was obtained for the fluorescence quenching values of famotidine in the linear range of 1–20 μg mL−1 with the optimal parameters. The limits of detection (LOD) were 4.67 ng mL−1, and the limits of quantification (LOQ) were 0.015 μg mL−1. It is possible to quantify famotidine without interference from standard excipients. The proposed method has proven effective for evaluating famotidine in its standard form, within commercial products, and in biological samples. Percentage recoveries ranged from 99.30% to 103.50% for pharmaceutical formulation and 98.78% to 101.56% for biological fluids. The environmental sustainability of the proposed method was evaluated using AGREE and the analytical Eco-Scale. The ICH guideline was used to test the validity of the method provided, and it can therefore be employed to evaluate famotidine in commercial dosage forms, yielding acceptable results.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147505726","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