Journal of Fluorescence最新文献_第8页

ICT / PET Modulated Chromogenic/Fluorogenic Detection of Cyanide Ions: A Spectroscopic and Theoretical Study. 氰离子的 ICT / PET 调制致色/致氟检测：光谱和理论研究。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04214-0

V Dharaniprabha, Kuppanagounder P Elango

{"title":"ICT / PET Modulated Chromogenic/Fluorogenic Detection of Cyanide Ions: A Spectroscopic and Theoretical Study.","authors":"V Dharaniprabha, Kuppanagounder P Elango","doi":"10.1007/s10895-025-04214-0","DOIUrl":"https://doi.org/10.1007/s10895-025-04214-0","url":null,"abstract":"The prevalence use of cyanide and its pernicious risks to human health accentuates the prominence of cyanide detection. Concerning this, we have developed a probe VDP4 by coupling a donor (8-hydroxyquinoline-2-carbaldehyde) and an acceptor (2-(1H-benzimidazole-2-yl)acetonitrile) by Knoevenagel condensation reaction for the exclusive detection of cyanide in an aqueous solution. The VDP4 responded to CN- by changing its color to yellow and switching on its fluorescence following contact with cyanide. 1H-NMR, 13C-NMR, LC-MS, FT-IR, and DFT studies provide an attestation for the signaling mechanism for cyanide detection is the deprotonation of the -OH group combined with nucleophilic addition of cyanide at the electron-deficient vinylic carbon atom of VDP4. A very low colourimetric (86 nM) and fluorometric (44 nM) detection limit highlighted its practicability, and Job studies ratified the 1:1 binding interaction. The DFT/TDDFT studies uncovered that colour changes of VDP4 with CN- were caused by ICT variations, and PET modulations were responsible for fluorescent alterations. The spatial ICT was a key factor for the deep yellow coloration of the VDP4 in the presence of CN-. The energy level diagram of frontier molecular orbitals unveiled that Photoinduced electron transfer from the benzimidazole part to the 8-hydroxy quinoline part was liable for the frail emission of VDP4 which occluded in the presence of CN- thereby turning on the fluorescence of the fluorophore. The real-time analysis results advocated that VDP4 was the optimum choice for the qualitative and quantitative estimation of CN- in food samples.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542149","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

Enhanced Red Emission from Bi³⁺ Sensitized Eu³⁺ Activated BaLaGa₃O₇ Phosphors for Solid-State Lighting Applications. 固态照明应用中Bi3+敏化Eu3+活化BaLaGa3O7荧光粉的增强红光发射

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04201-5

B Vasanthi, N Gopakumar, P S Anjana

{"title":"Enhanced Red Emission from Bi3+ Sensitized Eu3+ Activated BaLaGa3O7 Phosphors for Solid-State Lighting Applications.","authors":"B Vasanthi, N Gopakumar, P S Anjana","doi":"10.1007/s10895-025-04201-5","DOIUrl":"https://doi.org/10.1007/s10895-025-04201-5","url":null,"abstract":"Bi3+ ions sensitized BaLa0.95Ga3O7:0.05Eu3+ ceramic phosphors have been synthesized by the conventional solid state reaction method. The structural, optical and luminescence studies have been investigated. The structural studies include X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Energy dispersive x-ray spectroscopy (EDAX) via elemental color mapping. The optical and luminescence studies have been performed using UV-Visible absorption spectroscopy (UV-Vis), photoluminescence (PL), temperature dependent photoluminescence (TDPL) and mechanoluminescence (ML) studies. The XRD analysis shows that synthesized phosphors are single phase with a tetragonal structure. There is no significant change in the phase and structure of the host after the introduction of Eu3+ and Bi3+ ions. The emission spectra excited at 394 nm have been investigated for these wide band gap phosphors (~ 4.75 eV). The phosphors have intense red emission with high color purity and their chromaticity coordinates are very close to the standard red component (0.670, 0.330). The optimized BaLaGa3O7:0.05Eu3+,0.04 Bi3+ phosphor shows excellent thermal stability and retains 91% of its initial intensity at 423 K with activation energy 0.24 eV. Phosphors show good mechanoluminescence (ML) emission without any irradiation of UV or gamma rays. The dependence of ML glow curve intensity on dopant concentration, impact height and impact velocity has been performed. The ML and PL studies reveal that the synthesized phosphors can be potential candidates for stress sensors, UV or near UV LED and phosphor converted WLED applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542140","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 New Promising Silicate-Based Phosphor for Red Light and White Light Emitting Devices. 一种新的有前途的硅酸盐基荧光粉用于红光和白光发射器件。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04219-9

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

{"title":"A New Promising Silicate-Based Phosphor for Red Light and White Light Emitting Devices.","authors":"Büşra Yazıcı Başaran, Vural Emir Kafadar, Fatih Mehmet Emen, Esra Öztürk, Ali İhsan Karaçolak","doi":"10.1007/s10895-025-04219-9","DOIUrl":"https://doi.org/10.1007/s10895-025-04219-9","url":null,"abstract":"The aim of this study is to investigate the structure, particle morphology, photoluminescence, and chemical composition of materials for application in light-emitting devices. The present work primarily focuses on the synthesis and characterization of Ba₃CdSi₂O₈:RE (RE: Ce³⁺, Eu³⁺, and Dy³⁺) phosphors via the solid-state reaction method. XRD and FT-IR techniques were used to characterize the phosphors. The XRD patterns of the phosphors reveal that the peaks match those of the Ba₃Cd(SiO₄)₂ host material (PDF Card number: 00-028-0128), with no impurity peaks observed. The photoluminescence (PL) emission spectra of Ba₃CdSi₂O₈:RE (RE: Ce³⁺, Eu³⁺, and Dy³⁺) phosphors were investigated in detail. Ba₃CdSi₂O₈:Dy³⁺ phosphors show four emission bands in the blue (450-510 nm), yellow (550-600 nm), red (640-700 nm), and deep red (740-770 nm) regions. Ce³⁺-doped Ba₃CdSi₂O₈ phosphors show a broad emission band from 575 nm to 700 nm, with a maximum around 594 nm, which is assigned to the 5d-4f transition of Ce³⁺ ions. Moreover, Ba₃CdSi₂O₈:Eu³⁺ phosphors capture excitation energy through charge transfer transitions of Eu³⁺ ions and emit at 586 nm, 613 nm, 653 nm, and 700 nm, corresponding to the 5D₀ → 7 F₀, 5D₀ → 7 F₂, 5D₀ → 7 F₃, and 5D₀ → 7 F₄ transitions of Eu³⁺ ions, respectively. The CIE color coordinates confirm that Eu³⁺ doping shifts the color toward red, while Dy³⁺ and Ce³⁺ doping result in shifts within other parts of the chromaticity space.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542174","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 Study of pH Independent L-Cysteine Capped Zirconium Oxide Quantum Dots as a Potential Bio-Imaging Probe Using HeLa Cells. pH非依赖性l -半胱氨酸包覆氧化锆量子点的合成与HeLa细胞潜在生物成像探针的研究

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04216-y

Surya Pratap, Himanshu Meena, Shashi Kant Sharma, Vijay Kumar Sonkar, Sundeep Kumar, Horesh Kumar

{"title":"Synthesis and Study of pH Independent L-Cysteine Capped Zirconium Oxide Quantum Dots as a Potential Bio-Imaging Probe Using HeLa Cells.","authors":"Surya Pratap, Himanshu Meena, Shashi Kant Sharma, Vijay Kumar Sonkar, Sundeep Kumar, Horesh Kumar","doi":"10.1007/s10895-025-04216-y","DOIUrl":"https://doi.org/10.1007/s10895-025-04216-y","url":null,"abstract":"Here we propose an eco-friendly hydrothermal approach to synthesise fluorescent L-cysteine capped zirconium oxide quantum dots (L-Cys-ZrO2 QDs). The UV-Vis absorption, PL-emission, pH independence, size, functional group attached over surface QDs, binding energy, and stability of QDs in aqueous solvent were systematically studied. The TEM results revealed the mean particle size ∼5.7 nm of QDs. The synthesised QDs have UV-Vis absorption peaks at 320 nm, 265 nm, and 245 nm with PL emission from 360 nm to 500 nm and have a quantum yield ∼3.6%. The functional groups attached over surface of QDs such as -CO, -NH2, SO4-- etc. were confirmed by FT-IR spectrum which were supported by XPS spectrum analysis. An in-vitro optical bio-imaging method was employed, focusing on cancer cell line such as HeLa Cells as a model cell. Cytotoxicity is analysed using MTT assay showing that QDs are biocompatible in nature. The photoluminescence properties of the synthesized L-Cys-ZrO2 QDs were examined on the HeLa cells under green laser. The quantum dots proved to be effective labels for bioimaging as evidenced by strong emission when observed under a confocal fluorescence microscope by green laser.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143556791","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

Facile Synthesis of Carbon Dots from Green Resource and Their Application for Selective Determination of Mg². 利用绿色资源轻松合成碳点并将其用于选择性检测 Mg2。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04210-4

Tariq Shah, Najmus Saqib, Muhammad Idrees

{"title":"Facile Synthesis of Carbon Dots from Green Resource and Their Application for Selective Determination of Mg2.","authors":"Tariq Shah, Najmus Saqib, Muhammad Idrees","doi":"10.1007/s10895-025-04210-4","DOIUrl":"https://doi.org/10.1007/s10895-025-04210-4","url":null,"abstract":"A simple, fast and sensitive method based on the fluorescence quenching of carbon dots was developed for the determination of Mg2+ in environmental and biological sample. Carbon dots (CDs) were synthesized from arugula seeds by hydrothermal method. The precursor is cheap, easily available and environment friendly. CDs were characterized by selected techniques. They showed a bright blue fluorescent under UV light while under day light the synthesized CDs showed brown colour. The CDs were highly fluorescent. The interaction of CDs with various selected cations such as Ni2+, Sr2+, Cd2+, Mg2+, Cu2+, Al3+, Co2+, K+, Ca2+, Pb2+, Cr3+, Na+, Zn2+, Fe2+, Cu+, Mn2+, Mo6+, Sb3+, Sn4+, Cr6+, Ba2+, Li+ and Fe3+ was studied to check the probable potential application for the studied ions. All the studied ions did not show any effect on the intensity of CDs except Mg2+ which quenched the intensity of the CDs. A linear relation was found between the quenching of CDs intensity and Mg2+ concentration. The quenching was explained with the Stern-Volmer equation that produced the Stern-Volmer constant ([Formula: see text]). [Formula: see text], detection limit (DL) and quantification limit (QL) were observed in the order 2.85 × 105 mol L- 1, 32.6 n mol L- 1 and 108 n mol L- 1 correspondingly. Method based on the fluorescence quenching of CDs is reproducible and useful for the Mg2+ determination in environmental and biological samples.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542143","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

Hydrothermal Synthesis of Sulfuric Acid-Mediated Yellow Carbon Dots and It Applications in Fluorescent Ink and Cell Imaging. 硫酸介导的黄碳点水热合成及其在荧光油墨和细胞成像中的应用。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04215-z

Ziyi Zhang, Yuhang Zhou, Nuonuo Zhang, Kun Pang, Yanlan Wang, Xiang Liu, Jiaying Yan

{"title":"Hydrothermal Synthesis of Sulfuric Acid-Mediated Yellow Carbon Dots and It Applications in Fluorescent Ink and Cell Imaging.","authors":"Ziyi Zhang, Yuhang Zhou, Nuonuo Zhang, Kun Pang, Yanlan Wang, Xiang Liu, Jiaying Yan","doi":"10.1007/s10895-025-04215-z","DOIUrl":"https://doi.org/10.1007/s10895-025-04215-z","url":null,"abstract":"In this work, a series of sulfuric acid-mediated carbon dots (S-CDs) with different sulfur content were facile synthesized by the hydrothermal reaction from contaminant reactive brilliant blue (RB5). The S-CDs (S-CD-4) are selected due to their excellent optical properties in water, and the detailed structure information were characterized by XRD, Raman spectrum, FTIR spectra, and XPS. The morphology and thickness were further characterized by TEM (HRTEM, average diameter around 3.45 nm), and AFM (7-9 layers). Optical properties, photo stability and solvent effect of this S-CDs are investigated by absorption and fluorescence emission spectra. Notably, the photoluminescence of S-CDs is excitation-wavelength dependent, with emission wavelengths tunable from 670 nm to 707 nm. The maximum fluorescent emission peak is 707 nm under 680 nm excitation wavelengths with a large Stokes shift of up to 227 nm in DMF, exhibiting a moderate fluorescence intensity of 19.0%. The relationship between the amount of sulfur in CDs and the emission wavelength is further discussed by DFT calculation. Finally, S-CDs are successfully applied in fluorescent ink and cell imaging.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542146","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, Structure and Photophysical Properties of Dinuclear Zinc(II) Complexes with Schiff Base Bearing p-Phenylenediamine. 含对苯二胺席夫碱的双核锌（II）配合物的合成、结构和光物理性质。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-04 DOI: 10.1007/s10895-025-04204-2

Ninh Thi Minh Giang, Trinh Hong Duong, Ngo Tuan Cuong, Le Thi Hong Hai

{"title":"Synthesis, Structure and Photophysical Properties of Dinuclear Zinc(II) Complexes with Schiff Base Bearing p-Phenylenediamine.","authors":"Ninh Thi Minh Giang, Trinh Hong Duong, Ngo Tuan Cuong, Le Thi Hong Hai","doi":"10.1007/s10895-025-04204-2","DOIUrl":"https://doi.org/10.1007/s10895-025-04204-2","url":null,"abstract":"Four new dinuclear complexes Zn1-Zn4 were synthesized by the interaction of Zn(NO3)2.4H2O with Schiff bases containing p-phenylenediamine. The data of ESI-MS, IR and 1H NMR spectroscopy showed that the ligands coordinated with Zn(II) via two sets of O, Nimine atoms. In DMSO, ligands exhibit weak luminescence while the complex solutions emit strongly at maximum wavelength in the range 409-513 nm. Notably, electron-donating groups enhance the quantum yield of the complex solutions. Particularly, Zn2 containing NEt2 substitutes has outstanding quantum yields of 74%. Besides, the lifetimes of the complexes increase in the order Zn2 < Zn4 < Zn1 < Zn3 in DMSO. Along with the experiment, the structure, absorption and emission spectra of Zn1-Zn4 have been investigated by TD-DFT calculation. The result reproduces well the experimental absorption wavelengths and shows that the absorptions of the complexes are due to the singlet S0 → S1* transition from the π to the π* orbital of the ligand in complexes and the emission occurs from minimum of the S1 state to the ground singlet state S0. The calculation results also support for the fact that Zn2 has profoundly quantum yields.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542151","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 Spectroscopy Based Identification of Pseudomonas Aeruginosa and Escherichia Coli Suspensions. 基于荧光光谱的绿脓杆菌和大肠埃希氏菌悬浮液鉴定。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-01 Epub Date: 2024-02-09 DOI: 10.1007/s10895-024-03608-w

Sana Imtiaz, Muhammad Saleem

{"title":"Fluorescence Spectroscopy Based Identification of Pseudomonas Aeruginosa and Escherichia Coli Suspensions.","authors":"Sana Imtiaz, Muhammad Saleem","doi":"10.1007/s10895-024-03608-w","DOIUrl":"10.1007/s10895-024-03608-w","url":null,"abstract":"In this article, Fluorescence spectroscopy has been employed for the identification of Pseudomonas aeruginosa (PA) and Escherichia coli (E. coli) in water suspension. Emission spectra of PA and E. coli suspensions have been acquired by using excitation wavelengths from 270 to 420 nm with steps of 10 nm to explore their spectral features. It has been found that the emission spectra of tryptophan, tyrosine, NADH and FAD, being the intracellular biomolecules present in both bacteria, can be used as fingerprints for their identification, differentiation and quantification. Both bacterial strains can clearly be differentiated from water and from each other by using λex 270-290 nm through spectral analysis and from λex: 300-500 nm by applying statistical analysis. Furthermore, calibration curves for different bacterial loads of PA and E. coli suspensions have been produced between colonies forming units per ml (CFUs/ml) the integrated intensities of their emission spectra. CFUs/ml of both bacterial suspensions have been determined through plate count method which was used as cross-reference for the analysis of emission spectra of both bacterial suspensions. These curves may be used to estimate CFU/ml of both PA and E. coli in unknown water suspensions by determining the integrating intensity of their emission spectra.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":"1381-1391"},"PeriodicalIF":2.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139706950","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

Functionalized Green Carbon dots for Specific Detection of Copper in Human Serum Samples and Living Cells. 用于特异性检测人体血清样本和活细胞中铜含量的功能化绿色碳点。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-01 Epub Date: 2024-02-29 DOI: 10.1007/s10895-024-03586-z

Lijiao Guan, Wenxian Wang, Xianfen Zhang, Yuding Zhang, Jiyong Wu, Weiming Xue, Saipeng Huang

{"title":"Functionalized Green Carbon dots for Specific Detection of Copper in Human Serum Samples and Living Cells.","authors":"Lijiao Guan, Wenxian Wang, Xianfen Zhang, Yuding Zhang, Jiyong Wu, Weiming Xue, Saipeng Huang","doi":"10.1007/s10895-024-03586-z","DOIUrl":"10.1007/s10895-024-03586-z","url":null,"abstract":"Intracellular copper ion (Cu2+) is irreplaceable and essential in regulation of physiological and biological processes, while excessive copper from bioaccumulation may cause potential hazards to human health. Hence, effective and sensitive recognition is urgently significant to prevent over-intake of copper. In this work, a novel highly sensitive and green carbon quantum dots (Green-CQDs) were synthesized by a low-cost and facile one-step microwave auxiliary method, which utilized gallic acid, carbamide and PEG400 as carbon source, nitrogen source and surface passivation agent, respectively. The decreased fluorescence illustrated excellent linear relationship with the increasing of Cu2+ concentration in a wide range. Substantial surface amino and hydroxyl group introduced by PEG400 significantly improved selectivity and sensitivity of Green-CQDs. The surface amino chelation mechanism and fluorescence internal filtration effect were demonstrated by the restored fluorescence after addition of EDTA. Crucially, the nanosensor illustrated good cell permeability, high biocompatibility and recovery rate, significantly practical application in fluorescent imaging and biosensing of intracellular Cu2+ in HepG-2 cells, which revealed a potential and promising biological applications in early diagnosis and treatment of copper ion related disease.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":"1637-1649"},"PeriodicalIF":2.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139990242","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

Efficient Gamma Ray Detection Using CdTe/CdS Core/Shell Quantum Dots: A Simple and Rapid Fluorescence Approach. 利用 CdTe/CdS 核/壳量子点进行高效伽马射线探测：一种简单快速的荧光方法。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-03-01 Epub Date: 2024-02-24 DOI: 10.1007/s10895-024-03630-y

Farzad Farahmandzadeh, Elham Molahosseini, Soamyeh Naseri Portakaloo, Mehdi Molaei, Mohammad Khanzadeh

{"title":"Efficient Gamma Ray Detection Using CdTe/CdS Core/Shell Quantum Dots: A Simple and Rapid Fluorescence Approach.","authors":"Farzad Farahmandzadeh, Elham Molahosseini, Soamyeh Naseri Portakaloo, Mehdi Molaei, Mohammad Khanzadeh","doi":"10.1007/s10895-024-03630-y","DOIUrl":"10.1007/s10895-024-03630-y","url":null,"abstract":"Gamma rays, as hazardous nuclear radiation, necessitate effective and rapid detection methods. This paper introduces a low-cost, fast, and simple fluorescence method based on CdTe/CdS core/shell quantum dots for gamma-ray detection. CdTe/CdS quantum dots, subjected to gamma irradiation from a 60Co source under various conditions, were investigated to assess their fluorescence sensor capabilities. The obtained results showed that an increase in CdTe/CdS nanoparticle size was associated with decreased sensitivity, while a reduction in CdTe/CdS concentration correlated with increased sensitivity. To further validate the practicality of CdTe/CdS core/shell quantum dots in gamma-ray detection, the structural properties of the quantum dots were meticulously studied. Raman spectroscopy, X-ray diffraction (XRD), and Fourier-transform infrared (FT-IR) analysis were conducted before and after gamma-ray radiation. The results demonstrated the crystalline stability of CdTe/CdS core/shell quantum dots under gamma irradiation, highlighting their robust structural integrity. In conclusion, the experimental findings underscore the exceptional potential of CdTe/CdS quantum dots as an off-fluorescence probe for simple, low-cost, fast, and on-site detection of gamma rays. This research contributes to the advancement of efficient and practical methods for gamma-ray sensing in various applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":"1539-1547"},"PeriodicalIF":2.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139940047","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