Luminescence最新文献_第8页

Effect of Hetero-Atom Doping on the Structure and Optical Properties of Carbon Quantum Dots for the Sensitive Detection of Heavy Metal Ions 杂原子掺杂对重金属离子敏感检测碳量子点结构和光学性质的影响

IF 3.2 4区化学

Luminescence Pub Date : 2025-06-02 DOI: 10.1002/bio.70215

Çisem Kırbıyık Kurukavak, Mütahire Tok, Ayşegül Toprak, Merve Yurdakul, Mustafa Ersöz

{"title":"Effect of Hetero-Atom Doping on the Structure and Optical Properties of Carbon Quantum Dots for the Sensitive Detection of Heavy Metal Ions","authors":"Çisem Kırbıyık Kurukavak, Mütahire Tok, Ayşegül Toprak, Merve Yurdakul, Mustafa Ersöz","doi":"10.1002/bio.70215","DOIUrl":"https://doi.org/10.1002/bio.70215","url":null,"abstract":"Metal pollution in water sources due to modernization is a human health and environmental problem. Therefore, the highly fluorescent boron- and nitrogen-doped and nitrogen-doped carbon quantum dots (B,N-CQDs and N-CQDs, respectively) were synthesized and investigated to be used as a fluorescence sensor for metal ion detection. In this study, the synthesized B,N-CQDs and N-CQDs had an average size of 4–6 nm and 3–4 nm, respectively. The B,N-CQDs presented high sensitivity as 0.0090, 0.0086 and 0.0091 units per micromolar for Cr3+, Cu2+ and Fe2+, respectively, whereas the N-CQDs showed sensitivity as 0.0047, 0.0102, 0.0095 and 0.0121 units per micromolar for Cr3+, Cu2+, Fe2+ and Ni2+, respectively. In the concentration range of 10–80 μM, the detection limits of B,N-CQDs and N-CQDs were found to be in the range of 13.9–65.5 μg/L and 14.9–38.3 μg/L, respectively. The result of the study clearly indicates that B,N-CQDs and N-CQDs can be seen as metal ion sensing devices with high sensitivity and low cost.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70215","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197117","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

Novel Fluorescent Probe for Selective Recognition of G-Quadruplex Based on Aggregation Induced Emission 基于聚集诱导发射的新型荧光探针选择性识别g -四重体

IF 3.2 4区化学

Luminescence Pub Date : 2025-06-02 DOI: 10.1002/bio.70218

Jiahui Zhang, Yu Chen, Yidan Sun, Xinru Li, Haichao Liu, Xiuzhong Wang

{"title":"Novel Fluorescent Probe for Selective Recognition of G-Quadruplex Based on Aggregation Induced Emission","authors":"Jiahui Zhang, Yu Chen, Yidan Sun, Xinru Li, Haichao Liu, Xiuzhong Wang","doi":"10.1002/bio.70218","DOIUrl":"https://doi.org/10.1002/bio.70218","url":null,"abstract":"<div>\u0000 \u0000 G-quadruplex (G4) is four-stranded noncanonical secondary DNA structures, which have been identified as potential targets for therapeutic intervention. It is crucial to detect G4 and search for ligands that target G4 with high selectivity in complex biological matrices. The fluorescence signals and circular dichroism spectrum changes were explored for the interaction between jatrorrhizine chloride (Jat), a naturally aggregation-induced emission (AIE) molecule, and various DNA secondary structures. The fluorescence emission intensity was dramatically enhanced after Jat binding to G4 (AA22 as model analyte) compared with other configuration of DNAs, such as single-strand DNA (ssDNA), duplex DNA (dsDNA), hairpin DNA, and i-motif DNA were firstly reported. This means that Jat can serve as a fluorescence probe for the specific recognition of G4 DNA from other DNAs. A label-free AIE-based DNA biosensor to demonstrate the feasibility of detecting DNA polymerase activity and the screening of polymerization-targeted drugs was developed in this paper. The limit of the detection for DNA polymerase activity was 0.007 U·mL−1. The results proved that the sensing system has high sensitivity and reproducibility for detection of DNA polymerase activity and can be used for screening DNA polymerase inhibitors based on specific recognition of G4 DNA. In all, it has potential for practical application in chemical and biomedical fields.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197118","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

Investigating the Luminescent Characteristics of Formoterol for Innovative Spectrofluorimetric Determination in Pharmaceutical Formulation: Theoretical Calculations and Greenness Evaluation 创新荧光光度法测定制剂中福莫特罗的发光特性研究：理论计算和绿色评价

IF 3.2 4区化学

Luminescence Pub Date : 2025-06-01 DOI: 10.1002/bio.70214

Sayed M. Derayea, Dalia M. Nagy, Sara I. Badry, Mohamed Oraby

{"title":"Investigating the Luminescent Characteristics of Formoterol for Innovative Spectrofluorimetric Determination in Pharmaceutical Formulation: Theoretical Calculations and Greenness Evaluation","authors":"Sayed M. Derayea, Dalia M. Nagy, Sara I. Badry, Mohamed Oraby","doi":"10.1002/bio.70214","DOIUrl":"https://doi.org/10.1002/bio.70214","url":null,"abstract":"<div>\u0000 \u0000 This study investigates the fluorescence characteristics of formoterol, emphasizing the influence of various experimental conditions on its emission intensity. The fluorescence intensity of FMT was monitored at 342 nm after being excited at 223 nm. Comprehensive optimization of parameters, including pH, buffer solutions, and diluting solvents, revealed that neutral to basic environments and distilled water maximized the fluorescence intensity. The fluorescence behavior of FMT with pH changes was supported using density functional theory (DFT) calculations. Additionally, the change of fluorescence intensity with pH was utilized to calculate the pKa value of FMT. The method was validated per ICH guidelines, demonstrating high linearity, sensitivity, precision, and accuracy. The fluorescence-concentration plot was rectilinear from 50 to 1000 ng mL−1, with high linearity (r2 = 0.9997). The limits of detection and quantitation were 11.5 and 34.9 ng mL−1, respectively. The selectivity of the method was revealed from the absence of any significant interfering effect from the presence of different pharmaceutical excipients. Applications of the developed method in analyzing two commercially available pharmaceutical formulations showed high recovery percentages (99.18 ± 1.72 and 100.00 ± 0. 89). A comparative analysis with existing methodologies revealed superior sensitivity and cost-effectiveness, whereas the greenness evaluation confirmed its environmental friendliness.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190646","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

Multispectral Analysis of Natural Tridymite: Morphology, Composition, and Luminescence Features 天然氚石的多光谱分析：形态、组成和发光特征

IF 3.2 4区化学

Luminescence Pub Date : 2025-06-01 DOI: 10.1002/bio.70208

Sumeyra Balci, Virgilio Correcher, Mustafa Topaksu, Javier Garcia-Guinea, Ulku Sayin

{"title":"Multispectral Analysis of Natural Tridymite: Morphology, Composition, and Luminescence Features","authors":"Sumeyra Balci, Virgilio Correcher, Mustafa Topaksu, Javier Garcia-Guinea, Ulku Sayin","doi":"10.1002/bio.70208","DOIUrl":"https://doi.org/10.1002/bio.70208","url":null,"abstract":"<div>\u0000 \u0000 In this study, tridymite mineral from Lanzarote, Canary Islands, was investigated using spectroscopic and luminescence techniques for potential applications in dosimetry (e.g., radiation detectors), dating (e.g., through luminescence techniques), and ceramics (as a high-temperature-resistant material). Raman scattering identified molecular vibrations at 155, 220, 320, 370, 410, 445, 800, and 1100 cm−1. The 29Si MAS NMR spectra exhibited a broad signal (75–150 ppm) indicating variations in the silicon environment, supported by environmental scanning electron microscopy-energy dispersive X-ray spectroscopy (ESEM-EDS). Electron paramagnetic resonance (EPR) revealed an unpaired electron in a silicon sp3 orbital (g = 2.0027), increasing with power, suggesting an oxygen vacancy. The blue cathodoluminescence (CL) band suggested oxygen-defect centers (ODCs), with emissions at 400 and 445 nm could be linked to self-trapped excitons (STE) from an oxygen Frenkel pair (Si–O–O–Si) and oxygen vacancies. Emission at 480 nm could be attributed to impurity defects such as GeO₄3− + e and AlO₄4− + e. CL data analysis provided insight into how these defects influence radiative recombination, affecting photoluminescence (PL) emissions at 693 and 694.5 nm. ODCs notably contributed to PL emissions, as evidenced by the 452.5-nm CL peak associated with oxygen vacancies. This study offers valuable insights into tridymite's crystal structure, elemental configuration, molecular dynamics, and luminescent properties.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190645","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

Cysteine-Mediated N, S-Graphene Quantum Dots Adorned UiO-MOFs Nanocomposite: A Fast and Ultrasensitive Fluorescence Sensor for Para-Amino Hippuric Acid 半胱氨酸介导的N， s -石墨烯量子点修饰uio - mof纳米复合材料：对氨基马尿酸的快速超灵敏荧光传感器

IF 3.2 4区化学

Luminescence Pub Date : 2025-05-30 DOI: 10.1002/bio.70211

Shoheb S. Manyar, Sopan Nangare, Mahendra R. Mahajan, Zabiullah K. A. Khatik, Pravin O. Patil

{"title":"Cysteine-Mediated N, S-Graphene Quantum Dots Adorned UiO-MOFs Nanocomposite: A Fast and Ultrasensitive Fluorescence Sensor for Para-Amino Hippuric Acid","authors":"Shoheb S. Manyar, Sopan Nangare, Mahendra R. Mahajan, Zabiullah K. A. Khatik, Pravin O. Patil","doi":"10.1002/bio.70211","DOIUrl":"https://doi.org/10.1002/bio.70211","url":null,"abstract":"<div>\u0000 \u0000 Estimating para-aminohippuric acid (PAH) as a potential bioindicator for diagnosing renal diseases is gaining prominence. Hence, this study aims to develop a novel nanoprobe using cysteine-mediated N, S-graphene quantum dots (N, S-GQDs) embedded in UiO metal–organic frameworks (N, S-GQDs@UiO-MOFs) for PAH monitoring. Simultaneous green synthesis and doping of GQDs were initially done using Alstonia scholaris leaves and L-cysteine via the one-pot hydrothermal method to enhance their selectivity and optical properties. Fluorescent UiO-MOFs were then synthesized by 2-aminoterephthalic acid (2-ATA) and zirconium tetrachloride (ZrCl4) providing a large surface area suitable for decorating N, S-GQDs. Adding copper ions (Cu II) results in FL quenching (turn-off) to the probe solution. In contrast, PAH addition led to FL recovery (turn-on), attributed to interaction with the amino functionality of PAH and the formation of a Cu (II)-PAH complex. The developed sensor exhibited a broad dynamic range (3 –17 ng mL−1), an impressive detection limit (LOD: 662 pg mL−1), and a quantification limit (LOQ: 2 ng mL−1). Validation in artificial urine confirmed the sensor's specificity and suitability for real-time PAH analysis, demonstrating good stability, repeatability, and selectivity. The integrated N, S-GQDs@UiO-MOFs nanoprobe shows promise as a preferred method for PAH detection in clinical samples.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171938","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 Simple and Highly Sensitive Mitochondrial Targeting Fluorescent Probe and Its Applications for the Detection of Intracellular Viscosity 一种简单、高灵敏度的线粒体靶向荧光探针及其在细胞内黏度检测中的应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-05-29 DOI: 10.1002/bio.70205

Tingting Liang, Rui Guo, Meijie Xu, Kexin Hu, Weiying Lin

{"title":"A Simple and Highly Sensitive Mitochondrial Targeting Fluorescent Probe and Its Applications for the Detection of Intracellular Viscosity","authors":"Tingting Liang, Rui Guo, Meijie Xu, Kexin Hu, Weiying Lin","doi":"10.1002/bio.70205","DOIUrl":"https://doi.org/10.1002/bio.70205","url":null,"abstract":"<div>\u0000 \u0000 Viscosity is an important intracellular parameter which plays a significant role in cellular activities. Abnormal changes in viscosity could lead to inflammation and various types of diseases. Therefore, testing cellular microviscosity changes could help to develop new tools for disease diagnosis and treatment. To accurately monitor mitochondrial viscosity changes, a novel fluorescent probe called DWL-IY was developed by using the twisted intramolecular charge transfer (TICT) mechanism. The probe DWL-IY demonstrated high selectivity for viscosity and good photostability under both light and light-avoidance conditions. It also showed high sensitivity, with the fluorescence intensity increasing by 146-fold from methanol to glycerol and a large Stokes shift of 77 nm in methanol and 85 nm in glycerol. The positively charged DWL-IY molecule could be accurately colocalized in mitochondria and safely applied to Hela cells with low toxicity, responding sensitively to their mitochondrial viscosity variations.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171642","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

Thiosemicarbazone-Based Bifunctional ‘Turn On’ Fluorometric Chemosensors for the Rapid Detection of Zn2+ Cation and F− Anion: Theoretical Investigation, Smartphone-Assisted Colorimetric Detection and Applications in Bioimaging of Zebrafish Larvae and Molecular Logic Gate Operation 基于硫代氨基脲的双功能“开启”荧光化学传感器用于快速检测Zn2+阳离子和F−阴离子：理论研究，智能手机辅助比色检测及其在斑马鱼幼虫生物成像和分子逻辑门操作中的应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-05-28 DOI: 10.1002/bio.70203

Abbas Khaja Raees Ahmed, Ramalingam Gajendhiran, Rajakkani Paulpandiyan, Sivaraj Mithra, Seepoo Abdul Majeed, Azeez Sait Sahul Hameed, Aziz Kalilur Rahiman

{"title":"Thiosemicarbazone-Based Bifunctional ‘Turn On’ Fluorometric Chemosensors for the Rapid Detection of Zn2+ Cation and F− Anion: Theoretical Investigation, Smartphone-Assisted Colorimetric Detection and Applications in Bioimaging of Zebrafish Larvae and Molecular Logic Gate Operation","authors":"Abbas Khaja Raees Ahmed, Ramalingam Gajendhiran, Rajakkani Paulpandiyan, Sivaraj Mithra, Seepoo Abdul Majeed, Azeez Sait Sahul Hameed, Aziz Kalilur Rahiman","doi":"10.1002/bio.70203","DOIUrl":"https://doi.org/10.1002/bio.70203","url":null,"abstract":"<div>\u0000 \u0000 Three thiosemicarbazone-based bifunctional chemosensors 2-(3-ethoxy-2-hydroxybenzylidene)hydrazinecarbothioamide (S1), 2-(3-ethoxy-2-hydroxybenzylidene)-N-methylhydrazinecarbothioamide (S2) and 2-(3-ethoxy-2-hydroxybenzylidene)-N-phenylhydrazinecarbothioamide (S3) have been designed and synthesized. The sensor molecules displayed highly selective and sensitive colorimetric detection towards Co2+, Ni2+, Cu2+, Zn2+ and Fe3+ cations and F− anion, in addition to the remarkable selective ‘turn on’ fluorometric responses for Zn2+ cation and F− anion. The high binding constant values are observed when S2 binds with Zn2+ cation (2.83 × 106 M−1) and S1 binds with F− anion (1.16 × 106 M−1) with lower detection limit of 1.26 and 1.69 μM, respectively The theoretical studies endorsed the emission responses observed in the fluorescence spectral studies and the binding mode of chemosensors with sensed ions. Interestingly, the bioimaging studies with the chemosensors using DrG cells and zebrafish larvae demonstrated the detection of Zn2+/F− ions at relatively lower concentration. Additionally, the chemosensors were successfully integrated into the molecular logic gate systems and the smartphone-assisted RGB colour values, which enabled the real-time detection of Zn2+/F− ions in various environmental and biological samples.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171420","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

Preparation of Lanthanide Aluminate and Glass Nanofiber-Supported Polyacrylonitrile Plastic Smart Window 镧系铝酸盐和玻璃纳米纤维负载聚丙烯腈塑料智能窗的制备

IF 3.2 4区化学

Luminescence Pub Date : 2025-05-28 DOI: 10.1002/bio.70201

Salhah D. Al-Qahtani, Ghadah M. Al-Senani, Khulood A. Abu Al-Ola, M. S. Alsuhybani

{"title":"Preparation of Lanthanide Aluminate and Glass Nanofiber-Supported Polyacrylonitrile Plastic Smart Window","authors":"Salhah D. Al-Qahtani, Ghadah M. Al-Senani, Khulood A. Abu Al-Ola, M. S. Alsuhybani","doi":"10.1002/bio.70201","DOIUrl":"https://doi.org/10.1002/bio.70201","url":null,"abstract":"<div>\u0000 \u0000 Lanthanides are a common component in glass windows for smart products. However, glasses are fragile and inflexible, corrosive to alkali, and costly, whereas plastics are cheap, durable, and safe. Herein, afterglow and photochromic smart plastic windows were developed by reinforcing polyacrylonitrile (PAN) with electrospun glass nanofibers (GNF; 65–125 nm). Transparent films with photoluminescence properties were introduced by physically immobilizing rare-earth doped aluminate nanoparticles (REAN; 7–13 nm) into a composite of GNF@PAN. When irradiated with ultraviolet light, the GNF@PAN samples showed a change in color from transparent to green as proved by coloration parameters and photoluminescence spectra. An emission band was detected at 518 nm upon excitation at 365 nm. The morphology of the photoluminescent hybrids was investigated by different analytical techniques. The scratch resistance of GNF@PAN was significantly enhanced when the REAN content was increased. With low concentration levels of REAN, GNF@PAN quickly reversed photochromism to signify fluorescence emission. GNF@PAN with high REAN concentrations showed afterglow emission via prolonged emission in the dark. The photoluminescent hybrids showed enhanced superhydrophobic and ultraviolet blocking upon increasing the phosphor content. The photoluminescent plastics displayed an improved hydrophobicity from 139.1° to 150.8° when the phosphor content was increased.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171422","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

Asynchronous Preparation of Host—Guest Structures Enabling In Situ Growth of CsPbBr3: A Key to Forming Confined Perovskite and Its Application in Mercury (II) Ion Detection 使CsPbBr3原位生长的主客体结构的异步制备：形成受限钙钛矿的关键及其在汞（II）离子检测中的应用

IF 3.2 4区化学

Luminescence Pub Date : 2025-05-28 DOI: 10.1002/bio.70207

Jianshe Tang, Lingyu Jiang, Li Xiang

{"title":"Asynchronous Preparation of Host—Guest Structures Enabling In Situ Growth of CsPbBr3: A Key to Forming Confined Perovskite and Its Application in Mercury (II) Ion Detection","authors":"Jianshe Tang, Lingyu Jiang, Li Xiang","doi":"10.1002/bio.70207","DOIUrl":"https://doi.org/10.1002/bio.70207","url":null,"abstract":"<div>\u0000 \u0000 A significant challenge persists in the form of poor long-term stability of metal halide perovskites under ambient conditions, which has substantially impeded their practical implementation in the field of sensing applications. Herein, CsPbBr3 with a good water stability has been successfully synthesized within the confined nanospace of a ZIF-8. The synthesized material, denoted as CsPbBr3@ZIF-8, was fabricated with ultrafine CsPbBr3 perovskite particles having an average radius of 5 nm. Benefiting from the outstanding optical properties and remarkable water stability of CsPbBr3@ZIF-8, a fluorescent quenching-based sensing platform for the detection of Hg2+ ions in aqueous solutions has been established. This platform relies on direct chemical reactions and features an impressively low detection limit of 8.25 nM, along with a broad linear quantification range spanning from 10 to 5000 nM. The mechanism underlying the fluorescence quenching of CsPbBr3@ZIF-8 by Hg2+ ions was elucidated as photo-induced electron transfer. This conclusion was drawn by comparing the discrepancies in the fluorescence lifetimes of CsPbBr3@ZIF-8 before and after the introduction of Hg2+ ions. This innovative approach not only enhanced the stability of the CsPbBr3 nanocrystals but also opened up new possibilities for their application in various sensing scenarios where aqueous environments are involved.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171424","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 of a Novel Amphiphilic Tetraphenylethylene Derivative With Aggregation-Induced Emission Characteristics for Enhanced Aged Latent Fingerprint Detection 具有聚集诱导发射特性的新型两亲性四苯基乙烯衍生物的合成用于增强老化潜行指纹检测

IF 3.2 4区化学

Luminescence Pub Date : 2025-05-28 DOI: 10.1002/bio.70212

Ping Yang, Guangnan Wei, Zhiyuan Liu, Honglong Xing, Kuiliang Li, Duoduo Hu

引用次数: 0