Journal of Fluorescence最新文献_第2页

A Simple and Rapid Fluorescent Sensor Based on MoS₂ Quantum Dots for Dopamine Detection. 基于二硫化钼量子点的多巴胺检测荧光传感器

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-23 DOI: 10.1007/s10895-025-04413-9

Yunbo Zhao, Fangyuan Yang, Lefa Zhao, Guangda Xu

引用次数: 0

Waste Biomass Derived Nitrogen-doped Carbon Dots As Efficient Sensors of Environmental Pollutants. 废弃生物质衍生的氮掺杂碳点作为环境污染物的高效传感器。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-23 DOI: 10.1007/s10895-025-04416-6

Anju Paul, Beena Mathew, Manju Kurian

引用次数: 0

1,3,4-Oxadiazole Derivative: Gelation Induced Emission Enhancement and Triple-Channel Acid Responsive Properties. 1,3,4-恶二唑衍生物：凝胶诱导的发射增强和三通道酸响应性质。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-21 DOI: 10.1007/s10895-025-04415-7

Tianren Zhang, Qingyan Wang, Mingwen Ma, Youpeng Zuo, Fajun Li, Xusheng Xie, Yuchen Wei, Guizhi Wang, Xueqing Hu

引用次数: 0

Multifunctional Schiff Base Chemosensor for Cu²⁺ and 2,4-D Sensing with Potent Antibacterial Activity. 具有高效抗菌活性的Cu2+和2,4- d传感的多功能希夫碱化学传感器。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-21 DOI: 10.1007/s10895-025-04364-1

Faris J Tayeb, Alaa Shafie, Mohammed Fareed Felemban, Amal Adnan Ashour

{"title":"Multifunctional Schiff Base Chemosensor for Cu2+ and 2,4-D Sensing with Potent Antibacterial Activity.","authors":"Faris J Tayeb, Alaa Shafie, Mohammed Fareed Felemban, Amal Adnan Ashour","doi":"10.1007/s10895-025-04364-1","DOIUrl":"10.1007/s10895-025-04364-1","url":null,"abstract":"A novel Schiff base chemosensor SP1, was synthesized for the detection of Cu2+ ions and 2,4-dichlorophenoxyacetic acid (2,4-D). The chemosensor exhibited weak fluorescence due to the photoinduced electron transfer (PET) mechanism. Upon interaction with Cu2+, SP1 underwent a distinct \"turn-on\" fluorescence response accompanied by a visible color change from yellow to orange, resulting from the formation of the SP1-Cu2+ complex, which inhibited the PET process. The complex was further utilized for the detection of 2,4-D, which led to fluorescence quenching and color recovery, enabling a dual-mode sensing approach. The detection limits were found to be 0.003 ppm for Cu2+ and 0.02 ppm for 2,4-D, demonstrating high sensitivity. Additionally, SP1 and its SP1-Cu2+ complex was evaluated for their antibacterial activity, showing promising efficacy against pathogenic bacterial strains. This dual-functional chemosensor offers a reliable and sensitive platform for both metal ion detection and environmental pollutant monitoring, with added antibacterial potential.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144340180","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 Detection of Copper (II) Ions in Aqueous Solutions Using Thioglycolic Acid-Capped Ce-Doped ZnS Nanoparticles Based Fluorescent Probe. 巯基乙酸包覆ce掺杂ZnS纳米粒子荧光探针对水溶液中铜离子的灵敏检测。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-21 DOI: 10.1007/s10895-025-04335-6

Seema Maheshwari, Kuldeep Kaur, Ashok Kumar Malik

{"title":"Sensitive Detection of Copper (II) Ions in Aqueous Solutions Using Thioglycolic Acid-Capped Ce-Doped ZnS Nanoparticles Based Fluorescent Probe.","authors":"Seema Maheshwari, Kuldeep Kaur, Ashok Kumar Malik","doi":"10.1007/s10895-025-04335-6","DOIUrl":"10.1007/s10895-025-04335-6","url":null,"abstract":"The synthesis of fluorescent water dispersible thioglycolic acid (TGA)-capped Ce-doped ZnS nanoparticles (coded as Ce-ZnS@TGA) was carried out using environment friendly co-precipitation approach. The as-synthesized nanoparticles were characterized using powder X-ray diffraction (PXRD), HRTEM, Energy Dispersive X-ray spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy, and fluorescence spectroscopy. The Ce-ZnS@TGA probe was found to show significant enhancement on addition of urea. Further, the fluorescence intensity of the Ce-ZnS@TGA-urea complex was quenched on addition of Cu2+ ions. The Ce-ZnS@TGA-urea complex was used as a fluorescence probe for detection of Cu2+ ions in aqueous samples. The quenching of the fluorescence intensity of Ce-ZnS@TGA-urea was possibly due to non-radiative recombination as Cu2+ions act as electron trapping center. The LODs for detection of urea and Cu2+ ions was determined to be 2.3mM and 26.6 µΜ respectively. The factors affecting the detection of Cu2+ ions such as presence of other metal ions were also investigated and the optimum pH value for the sensor was evaluated. The proposed method was also employed to detect trace Cu2+concentrations in real water samples with satisfactory results.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144340182","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

Characterization of the Chaetae Autofluorescence in the Earthworm Eisenia foetida and their Role in Locomotion. 蚯蚓毛纲自身荧光的特征及其在运动中的作用。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-21 DOI: 10.1007/s10895-025-04374-z

Melvin Rodríguez-Heredia, Martín Gerardo Rodríguez, Birmania Heredia Rivera, Edgar Saucedo Casas, Birmania Rodríguez-Heredia

{"title":"Characterization of the Chaetae Autofluorescence in the Earthworm Eisenia foetida and their Role in Locomotion.","authors":"Melvin Rodríguez-Heredia, Martín Gerardo Rodríguez, Birmania Heredia Rivera, Edgar Saucedo Casas, Birmania Rodríguez-Heredia","doi":"10.1007/s10895-025-04374-z","DOIUrl":"10.1007/s10895-025-04374-z","url":null,"abstract":"Earthworms are the most abundant invertebrates in terrestrial ecosystems and play a vital role in maintaining soil structure and fertility, they interact constantly with soil particles and microorganisms, improving macroporosity, water dynamics, aeration, and organic matter decomposition. Their bodies are composed of segments known as rings or metameres, from which small bristle-like structures called chaetae protrude. These chaetae assist in burrowing and locomotion through the soil. Despite their functional importance, the detailed composition and optical properties of chaetae remain poorly understood. In this study, chaetae from Eisenia foetida were isolated and analyzed using fluorescence microscopy, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX) and infrared spectroscopy (FTIR). Fluorescence analysis revealed strong intrinsic blue autofluorescence, with an excitation peak at 320 nm and an emission peak at 410 nm, matching the DAPI filter set. SEM-EDX showed a composition dominated by carbon and oxygen, along with trace elements such as chlorine, potassium, sodium, and copper, while FTIR confirmed the presence of β-chitin as the primary structural component. These findings expand our understanding of the molecular and optical properties of annelid chaetae. The discovery of intrinsic autofluorescence linked to β-chitin opens new possibilities for non-invasive imaging, species identification, and the potential use of annelid-derived chitin in biomaterials research.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144340179","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

Red Emissive Carbon Dots as Fluorescent Probe for Specific Sensing and Imaging of HCIO. 红碳点荧光探针在HCIO特异传感和成像中的应用。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-21 DOI: 10.1007/s10895-025-04411-x

Ying Peng, Haonan Yang, Mengyao Qu, Shaobing Zhang, Zheng Yang, Xiaodan Jia, Bo Wang, Xiangrong Liu

引用次数: 0

Waste Egg Tray Paper Pulp Derived Carbon Dots for Detection of Fe³⁺ Ions via Fluorescence On-Off Process. 废蛋盘纸浆衍生碳点荧光开关法检测Fe3+离子。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-20 DOI: 10.1007/s10895-025-04407-7

Bilipang Mahilary, Khemnath Patir, Roshan Kandinya, Sanjay Basumatary

{"title":"Waste Egg Tray Paper Pulp Derived Carbon Dots for Detection of Fe3+ Ions via Fluorescence On-Off Process.","authors":"Bilipang Mahilary, Khemnath Patir, Roshan Kandinya, Sanjay Basumatary","doi":"10.1007/s10895-025-04407-7","DOIUrl":"10.1007/s10895-025-04407-7","url":null,"abstract":"Development of rapid and cost effective techniques for detecting metal ions is important to prevent water pollution and ensure public safety. Herein, we report the synthesis of fluorescent carbon dots (t-CDs) from waste egg tray paper pulp by one step hydrothermal treatment. The synthesized t-CDs have been characterized by various analytical techniques. The prepared t-CDs demonstrated excitation dependent emission and particle sizes ranges from 7 nm to 14 nm with mean diameter of 9 nm. Our study show that the fluorescence of the t-CDs is efficiently turn off upon addition of Fe3+ due to the formation of complex between Fe3+ and the surface functional groups of t-CDs which enables aggregation and electron transfer process, resulting in fluorescence quenching. There is a linear relationship between the fluorescence quenching of the t-CDs versus the concentration of the Fe3+ in the ranges, 0-40 µM with limit of detection of 1.418 µM. Further, the t-CDs is applied as sensor for detection of Fe3+ in real water samples, demonstrating its utility in environment monitoring.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333244","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

Regulation of Multicolored Reed-Based Carbon Dots and their Application for Anti-Counterfeiting and Cell Imaging. 多色芦苇基碳点的调控及其在防伪和细胞成像中的应用。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-20 DOI: 10.1007/s10895-025-04396-7

Lifan Zhang, Minghui Yan, Lixia Zhang, Jinwang Gao, Hongmei Liu, Li Huo

{"title":"Regulation of Multicolored Reed-Based Carbon Dots and their Application for Anti-Counterfeiting and Cell Imaging.","authors":"Lifan Zhang, Minghui Yan, Lixia Zhang, Jinwang Gao, Hongmei Liu, Li Huo","doi":"10.1007/s10895-025-04396-7","DOIUrl":"10.1007/s10895-025-04396-7","url":null,"abstract":"Biobased fluorescent carbon dots (CDs) with their advantages of being environmentally friendly, renewable, easy to modify, superior water solubility, luminescence stability, and biocompatibility have attracted extensive attention. In this study, agricultural waste reed is used to controllably prepare multicolor (cyan, green, and yellow) CDs (C-CDs, G-CDs, and Y-CDs) by using the one-step hydrothermal method, regulating the types of nitrogen sources. The result showed that the average particle sizes for C-CDs, G-CDs, and Y-CDs were 2.58 nm, 5.31 nm, and 6.80 nm, respectively. The redshift is explained by doping different nitrogen sources, which leads to increased particle size of CDs, and the deepening of the graphitization degree of CDs leads to increased sp2 hybridization degree. The fluorescence quantum yields (QY) for C-CDs, G-CDs, and Y-CDs were 15.45%, 39.07%, and 7.87%. These CDs exhibit good salt resistance, photobleaching resistance, and chemical stability, A multi-dimensional anti-counterfeiting system has been successfully constructed, displaying specific fluorescence patterns under ultraviolet excitation. In addition, the cytotoxicity test Cell Counting Kit-8 (CCK-8) showed that the survival rate of reed-based CDs to HeLa cells remained above 98% even at 0-250 µg/mL, showing good biocompatibility and nontoxicity. So, the CDs can be utilized in anti-counterfeiting fluorescent ink and cell imaging. It is particularly noteworthy that using agricultural waste as raw material to prepare CDs not only conforms to green chemistry, low cost, and sustainable development but also realizes the high-value utilization of waste resources.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333209","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

Regulating ESIPT Behavior and Fluorescent Properties by Introducing -CN Group at Different Positions of BACN: A TD-DFT Study. 在BACN不同位置引入-CN基团调控ESIPT行为和荧光特性：一项TD-DFT研究。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-06-20 DOI: 10.1007/s10895-025-04408-6

Jing Zhang, Hua Fang

{"title":"Regulating ESIPT Behavior and Fluorescent Properties by Introducing -CN Group at Different Positions of BACN: A TD-DFT Study.","authors":"Jing Zhang, Hua Fang","doi":"10.1007/s10895-025-04408-6","DOIUrl":"10.1007/s10895-025-04408-6","url":null,"abstract":"A new fluorophore BACN, which is composed of 2-(2'-hydroxyphenyl)benzothiazole and α-cyanostilbene unit was obtained experimentally (Spectrochim. Acta A 281 (2022) 121601), but the direct information of excited state intramolecular proton transfer (ESIPT) process in it cannot be provided in the experiment. In this work, the ESIPT behaviors and photophysical features as well as the influence of substitution position of -CN group have been explored in detail via density functional theory (DFT) and time-dependent DFT. The experimental absorption and emission wavelengths of BACN are reproduced at the TD-PBE38/6-311 + G(d, p) level. The theoretical results of structural parameters, infrared frequencies, topological parameters and reduced density gradient (RDG) analysis showed that the intramolecular hydrogen bonds (IHBs) are enhanced in the excited state (S1). The proton transfer is more likely to occur in S1 state. The introduction of -CN group at different positions weakens the IHB strength, increases the ESIPT barrier, red-shifts the fluorescence wavelength of the tautomer and enlarge the Stokes shifts of the tautomer.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333208","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