Journal of Fluorescence最新文献_第2页

RGB Trichromatic Whiteness Assessment of Bio Analytical Chromatographic Tool Using Fluorescence for Quantitation of Semaglutide: Application to Pharmaceutical Preparations and Spiked Plasma. 利用荧光对用于塞马鲁肽定量的生物分析色谱工具进行 RGB 三基色白度评估：应用于药物制剂和加标血浆。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-28 DOI: 10.1007/s10895-024-03954-9

Mona M Abdel Moneim, Miranda F Kamal, Mohamed M A Hamdy

{"title":"RGB Trichromatic Whiteness Assessment of Bio Analytical Chromatographic Tool Using Fluorescence for Quantitation of Semaglutide: Application to Pharmaceutical Preparations and Spiked Plasma.","authors":"Mona M Abdel Moneim, Miranda F Kamal, Mohamed M A Hamdy","doi":"10.1007/s10895-024-03954-9","DOIUrl":"https://doi.org/10.1007/s10895-024-03954-9","url":null,"abstract":"Semaglutide (SEMG) is one of the most widely used and trending medications to treat type II diabetes and obesity. This work aimed to develop a liquid chromatography with spectroflourimetric detection (HPLC-flourimetry) analysis of SEMG in both its tablet dosage form and plasma. The power of fluorescence detection coupled with HPLC proved its capability as a bioanalytical tool to assay SEMG in plasma samples owing to its simplicity and sensitivity which reached below the Cmax of SEMG. Separation was done using a C18 column with mobile phase of acetonitrile and water acidified with orthophosphoric acid (pH 3.5) (1.41 × 10-5 M) in isocratic mode in ratio 57:43 and 1 mL/min flow rate after extraction using protein precipitation. Detection was carried out at λ excitation of 238 nm and λ emission of 416 and 307 nm for SEMG and the internal standard, respectively. Evaluation of greenness of the proposed method was done using AGREE (Analytical GREEnness Metric Approach), ComplexGAPI (Complementary Green Analytical Procedure Index) & the new algorithm RGB 12 model (Red-Green-Blue). They showed that these methods can be a greener alternative with acceptable sensitivity for analysis of SEMG. The developed seven min-assay was validated per ICH as well as FDA bio analytical methods' guidelines to prove its applicability for routine sample analysis and future pharmacokinetic studies.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521988","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

Conjugated Polymers Based on Carbazole and Tridentate Ligands as the "On-Off-On" Fluorescent Probes for Detection of Ni (II) Ion and Lysine. 基于咔唑和三叉配体的共轭聚合物作为检测镍 (II) 离子和赖氨酸的 "开-关-开 "荧光探针。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-26 DOI: 10.1007/s10895-024-03997-y

Yinshuang Chen, Yi Feng, Haoyue Luo, Xinai Chen, Hong Lei, Juhua Feng, Kuan Liu

{"title":"Conjugated Polymers Based on Carbazole and Tridentate Ligands as the \"On-Off-On\" Fluorescent Probes for Detection of Ni (II) Ion and Lysine.","authors":"Yinshuang Chen, Yi Feng, Haoyue Luo, Xinai Chen, Hong Lei, Juhua Feng, Kuan Liu","doi":"10.1007/s10895-024-03997-y","DOIUrl":"https://doi.org/10.1007/s10895-024-03997-y","url":null,"abstract":"Two novel conjugated polymers (polymer 1 and polymer 2) containing trisheterocyclic systems and carbazole as the copolymerization unit were synthesized by the Suzuki coupling reaction and characterized using NMR spectroscopy and other methods. 4'-(3,5-Dibromophenyl)-2,2':6',2''-terpyridine and 2,2'-(4-(3,5-dibromophenyl)pyridine-2,6-diyl)dithiazole were used as the recognizing units of the two polymers respectively. The polymers show blue-violet fluorescence when dissolved in THF. The ability of the polymers to identify anions and metal ions was investigated by fluorescence sensing tests. It was found that I- not only quenched the fluorescence but also undergone some redshift. Ni (II) efficiently quenched the fluorescence of the polymers, and polymer 2 recognized Ni2+ with higher specificity. UV-visible absorption titration experiments showed that Ni2+ formed complexes with the polymers. In addition, the formation of complexes between Ni2+ and polymers were used for the detection of amino acids, and it was found that lysine could regenerate the fluorescence of [polymer 1-Ni2+] and [polymer 2-Ni2+] with 99% fluorescence recovery.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501731","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

Theoretical Study of Three Ratiometric 1,8-naphthalimide Fluorescent Probes for Hydrogen Sulfide Detection. 用于硫化氢检测的三种比率法 1,8-萘二甲酰亚胺荧光探针的理论研究。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-25 DOI: 10.1007/s10895-024-03990-5

Anran Huang, Yuhe Zhou, Yonglin Liang, Qiyan Liu, Wenxuan Hao, Zhicheng Xia, Dongxia Wu, Haixiang He

{"title":"Theoretical Study of Three Ratiometric 1,8-naphthalimide Fluorescent Probes for Hydrogen Sulfide Detection.","authors":"Anran Huang, Yuhe Zhou, Yonglin Liang, Qiyan Liu, Wenxuan Hao, Zhicheng Xia, Dongxia Wu, Haixiang He","doi":"10.1007/s10895-024-03990-5","DOIUrl":"https://doi.org/10.1007/s10895-024-03990-5","url":null,"abstract":"Three ratiometric 1,8-naphthalimide fluorescent probes for hydrogen sulfide detection have been studied theoretically by using density functional theory and time-dependent functional theory. From the detailed comparison of the optimized geometries, it is found that the change of substituents has a slight effect on the structure of 1,8-naphthalimide fluorophore, and the effect is mainly located in the part attached to the changed substituent. The change of the electron-withdrawing or electron-donating ability of the substituents on the 1,8-naphthalimide has an effect on the electronic spectra. Based on the analysis of frontier molecular orbital, the intramolecular charge transfer process was found for the three probes and their corresponding products. Finally, the analysis of the energy gap between the highest occupied molecular orbital and the lowest unoccupied molecular orbital was elaborated. This work provides a theoretical explanation of the experimental results and thus contributes to the development of novel fluorescent probes in the future.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501739","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

Eco-Friendly Analytical Approach for Sensitive Spectrofluorimetric Determination of the Flavonoid Chrysin in Capsules and Human Plasma. 用生态友好型分析方法灵敏测定胶囊和人体血浆中的黄酮类化合物菊黄素

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-24 DOI: 10.1007/s10895-024-03962-9

Heba Abd El-Aziz, Nada E Hammouda, Fathallah Belal, Heba Samir Elama

{"title":"Eco-Friendly Analytical Approach for Sensitive Spectrofluorimetric Determination of the Flavonoid Chrysin in Capsules and Human Plasma.","authors":"Heba Abd El-Aziz, Nada E Hammouda, Fathallah Belal, Heba Samir Elama","doi":"10.1007/s10895-024-03962-9","DOIUrl":"https://doi.org/10.1007/s10895-024-03962-9","url":null,"abstract":"Chrysin is a plant flavonoid that has different therapeutic effects as anti-inflammatory, anti-cancer, anti-oxidant, and immune booster. Spectrofluorimetry has received a lot of interest lately because of its ecological greenness and analytical performance. This approach employed the native fluorescence of chrysin at 339 nm following excitation at 231 nm in distilled water. Modern advances in analytical chemistry have been used to lessen occupational and environmental concerns by employing distilled water as a dilution solvent through method development and application. The approach was found to be excellent green supported by eco-scale score of 97 and 0.94 AGREE rating, in addition to an overall whiteness score of 88.80. The design aimed to analyze chrysin in raw materials, Chrysin® capsules and human plasma. The method was linear over 0.5-7.0 ng mL⁻1 chrysin, with LOD of 0.06 ng mL⁻1 and LOQ of 0.20 ng mL⁻1. The offered method was effectively applied for determination of chrysin in the commercial capsules Chrysin® and spiked human plasma samples with average recoveries of 99.76% and 99.98%, respectively for capsules and spiked human plasma. Up to date, no spectrofluorimetric method has been described for chrysin analysis, then, this presented an opportunity to develop a sensitive, quick, reliable, environmentally friendly, and valid fluorescence-based method.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501733","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 Schiff-Base Molecular Probe for Selective Fluorescence Sensing of Maleic Acid with Recognition of Maleic Acid in Food Additives and Cell Imaging. 一种用于马来酸选择性荧光传感的希夫碱分子探针，可识别食品添加剂和细胞成像中的马来酸。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-24 DOI: 10.1007/s10895-024-04015-x

Swagatika Mishra, Pragyan P Dash, Patitapaban Mohanty, Manasa K Panda, Monalisa Mohanty, Prasant K Nanda, Santosh K Behera, Suban K Sahoo, Renjith Bhaskaran, Bigyan Ranjan Jali

引用次数: 0

Green Synthesis and Enhanced Photocatalytic Performance of rGO/ZnO/Fe₃O₄ Nanocomposites: A Sustainable Approach to Environmental Remediation. rGO/ZnO/Fe3O4 纳米复合材料的绿色合成与增强光催化性能：环境修复的可持续方法。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-24 DOI: 10.1007/s10895-024-04014-y

Hamed Safajou, Zirar M Mizwari, Akram Rostaminia, Hossein Khojasteh, Peyman Aspoukeh, Mohammad-Peyman Mazhari

{"title":"Green Synthesis and Enhanced Photocatalytic Performance of rGO/ZnO/Fe3O4 Nanocomposites: A Sustainable Approach to Environmental Remediation.","authors":"Hamed Safajou, Zirar M Mizwari, Akram Rostaminia, Hossein Khojasteh, Peyman Aspoukeh, Mohammad-Peyman Mazhari","doi":"10.1007/s10895-024-04014-y","DOIUrl":"https://doi.org/10.1007/s10895-024-04014-y","url":null,"abstract":"The fast industrialization and mounting pollution have necessitated the need for advanced materials in order to degrade pollutants efficiently. Metal oxide-based and graphene-derivative photocatalytic nanocomposites are excellent for harnessing light energy in environmental remediation. Among them, ZnO-based nanocomposites have drawn considerable attention because of their high photocatalytic activity and stability. However, improving the performance of these nanocomposites is still necessary for their wide applications. This study explores the green synthesis, detailed characterization, and enhanced photocatalytic efficiency of reduced graphene oxide rGO/ZnO/Fe3O4 nanocomposites. The nanocomposites were synthesized via a hydrothermal method, utilizing milk thistle extract as a natural reducing agent, representing a novel and sustainable approach to fabricating magnetic rGO/Fe3O4 nanocomposites. These composites were further integrated with zinc oxide to produce a multifunctional material, exhibiting high surface area, superior electrical and thermal conductivity, and robust mechanical strength. The photocatalytic performance was significantly enhanced due to the synergistic interaction between graphene and metal oxide nanoparticles, leading to efficient degradation of environmental pollutants. Electrochemical analysis via cyclic voltammetry revealed distinctive redox peaks, demonstrating efficient electron transfer processes essential for applications in energy conversion and storage. This green synthesis not only provides a sustainable pathway for the development of advanced nanocomposites but also underscores their potential in a wide range of applications, including environmental remediation, sensing, energy storage, and optoelectronics.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501735","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

Sensitive and Selective Determination of Benzidine by Synthesized tragacanth-poly (Acrylic acid-co-acrylamide-GQD) Hydrogel Nanocomposite as a Highly Stable Fluorescent Probe. 利用合成的聚丙烯酸-聚丙烯酰胺-GQD 水凝胶纳米复合材料作为高稳定性荧光探针灵敏、选择性地测定联苯胺。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-23 DOI: 10.1007/s10895-024-03996-z

Azra Akbari, Morteza Bahram, Reza Dadashi, Sedigheh Ehsanimehr

{"title":"Sensitive and Selective Determination of Benzidine by Synthesized tragacanth-poly (Acrylic acid-co-acrylamide-GQD) Hydrogel Nanocomposite as a Highly Stable Fluorescent Probe.","authors":"Azra Akbari, Morteza Bahram, Reza Dadashi, Sedigheh Ehsanimehr","doi":"10.1007/s10895-024-03996-z","DOIUrl":"https://doi.org/10.1007/s10895-024-03996-z","url":null,"abstract":"Benzidine is known as a toxic and highly carcinogenic substance, so its determination is an essential issue. Until now, no effective and stable fluorescent probe based on hydrogel nanocomposite has been reported for the determination of this substance. In this work, for the first time, the synthesis and use of tragacanth-poly (acrylic acid-co-acrylamide-GQD) hydrogel nanocomposite (H-GQD) as a novel, high-stable, and selective fluorescence hydrogel nanocomposite for the identification of benzidine is reported. To achieve the maximum responsiveness of this hydrogel nanocomposite to determine benzidine, various parameters such as pH, ionic strength, hydrogel nanocomposite concentration, sensitivity, and selectivity were investigated. The results of the investigations showed that the synthesized H-GQD has excellent stability, selectivity, and linearity range of 0.3 - 12 ppm with a limit of detection of 0.098 ppm. The results of the investigation of real water samples showed that the H-GQD has excellent recovery in the range of 93.3 - 106.6%. Finally, we believe that this H-GQD as a new and highly stable fluorescent probe can be a starting point for its application in various fields and industries to identify benzidine in water samples.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501738","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 Novel Fluorescent Sensor for Detecting Ag⁺ and Hg²⁺ ions: A Combination of Theoretical and Experimental Studies. 检测 Ag+ 和 Hg2+ 离子的新型荧光传感器：理论与实验研究的结合。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-23 DOI: 10.1007/s10895-024-03988-z

Nguyen Khoa Hien, Mai Van Bay, Quan V Vo, Ngo Duy Y, Duong Tuan Quang, Pham Cam Nam

引用次数: 0

Investigation of H-Bonding and pH on the Fluorescence Spectral Behavior of Valsartan. 研究 H 键和 pH 对缬沙坦荧光光谱行为的影响

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-23 DOI: 10.1007/s10895-024-04002-2

Fakhri O Yousef, Raed Ghanem, Omar K Almashaqbeh, Ihsan A Shehadi

{"title":"Investigation of H-Bonding and pH on the Fluorescence Spectral Behavior of Valsartan.","authors":"Fakhri O Yousef, Raed Ghanem, Omar K Almashaqbeh, Ihsan A Shehadi","doi":"10.1007/s10895-024-04002-2","DOIUrl":"https://doi.org/10.1007/s10895-024-04002-2","url":null,"abstract":"The photophysical properties of valsartan (VAL), a potent phenyl tetrazole derivative sartan, were investigated. Valsartan has absorption bands at 230 nm and 255 nm and a fluorescence band at about [Formula: see text] = 346 nm in butanol which is red shifted depending on the H-bonding capability of the solvent. The role of H-bonding in the excited state was approved through the linear correlation of the emission energy of VAL with Camlet-Taft acidity and basicity parameters, α and β, of polar protic solvents. The position and intensity of fluorescence emission bands of VAL are found to be pH dependent, shifting from 425 nm at pH 2 to 375 nm at pH 4 with enhancement of intermolecular H-bonding and fluorescence intensity depletion beyond pH 5 with formation of tetrazole anion. The results were supported by time-resolved fluorescence measurements which indicated the presence of different species with different lifetimes in the excited state depending on solution pH value. Computational results based on time dependent density functional methods (TDDFT) show that the tetrazole moiety is involved in the [Formula: see text] absorption transitions, while natural bond analysis (NBO) shows that VAL adopts a dimer conformation in water because of effective intermolecular H-bonding.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501736","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 Entrenched Probe for Onsite Detection of Amoxicillin Residue in Bovine Milk. 用于现场检测牛乳中阿莫西林残留的荧光嵌入探针。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-23 DOI: 10.1007/s10895-024-03959-4

Abinaya Muthukumar, Swarnalatha Kalaiyar

{"title":"Fluorescence Entrenched Probe for Onsite Detection of Amoxicillin Residue in Bovine Milk.","authors":"Abinaya Muthukumar, Swarnalatha Kalaiyar","doi":"10.1007/s10895-024-03959-4","DOIUrl":"https://doi.org/10.1007/s10895-024-03959-4","url":null,"abstract":"A novel fluorescent probe (E)-3-(4-hydroxyphenyl)-2-((pyrene-1-ylmethylene) amino)propanoic acid (PyT) was developed for the 'turn-on' detection of amoxicillin(AM), residues. The PyT molecule was developed by a simple condensation reaction between a biologically important tyrosine amino acid and pyrene carboxaldehyde. The small fluorophore molecule has spectacular photoluminescence properties such as large stock shift, high photostability, selectivity and sensitivity toward the analytes. The PyT upon dispersion in the liquid phase becomes highly luminescent possessing the restricted intramolecular rotation (RIR) and excited stated intramolecular proton transfer (ESIPT) properties which are the major criteria for aggregation induced emission enhancement (AIEE) mechanism prevailing the aggregation caused quenching (ACQ). PyT molecule shows a binding constant of 3.285 × 104 L mol-1 for amoxicillin (AM). The limit of detection (LOD) values are found to be 1.67µM. Consuming bovine milk with antibiotic residues exceeding the maximum residue limit (MRL) can lead to food toxicity and life threatening diseases in humans. The milk sample with AM antibiotic residue in presence of PyT probe shows a distinct blue colour which infers the selectivity and sensitivity of the probe towards the analyte. The fluorescence probe adheres with merits like on site and visual examination by naked eye without aid of any instruments.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501734","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