Luminescence最新文献_第4页

Sustainable, Green, and Sensitive Spectrofluorimetric Approach for Pizotifen Maleate Detection in Tablets and Human Plasma via Photo-Induced Electron Transfer Inhibition 可持续、绿色、灵敏的光诱导电子转移抑制马来酸吡唑芬片剂和人血浆检测方法。

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-18 DOI: 10.1002/bio.70059

Mahmoud A. Omar, Abobakr A. Mohamed, Yaser Alahmadi, Mohammed Almaghrabi, Rawan Bafail, Islam M. Mostafa

{"title":"Sustainable, Green, and Sensitive Spectrofluorimetric Approach for Pizotifen Maleate Detection in Tablets and Human Plasma via Photo-Induced Electron Transfer Inhibition","authors":"Mahmoud A. Omar, Abobakr A. Mohamed, Yaser Alahmadi, Mohammed Almaghrabi, Rawan Bafail, Islam M. Mostafa","doi":"10.1002/bio.70059","DOIUrl":"10.1002/bio.70059","url":null,"abstract":"<div>\u0000 \u0000 Pizotifen maleate (PZM) is an anti-migraine drug. Effective treatment requires accurate measurement of PZM levels in patients and constant medication concentrations in tablets. This paper presents a new spectrofluorimetric approach for detecting PZM in tablets and human blood plasma (spiked with PZM). The detection mechanism depends on the inhibition of the PZM molecule's photoinduced electron transfer (PET), resulting in a bright fluorescent intensity from PZM. Acetic acid (2.0 M) acidifies the reaction environment and causes PET inhibition. This approach detects PZM at concentrations ranging from 100 to 700 ng mL−1. Furthermore, the approach has outstanding detection and quantification limits of 30.95 and 93.78 ng mL−1, respectively. Also, the approach accurately measured PZM content homogeneity in each tablet and spiked human plasma samples without any interference. This new strategy represents a new and sensitive method for accurate PZM monitoring in different samples. Furthermore, the established fluorimetric method's greenness was evaluated.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856559","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

Green Synchronous Spectrofluorimetric Method for Simultaneous Determination of Trifluridine and Tipiracil Used for Treatment of Colorectal Cancer in Pharmaceutical Products and Spiked Human Biological Fluids 同时测定医药产品和加标人体生物液体中用于治疗结直肠癌的曲氟尿苷和替吡嘧啶的绿色同步分光荧光法

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-18 DOI: 10.1002/bio.70064

Hesham Salem, Mahmoud Abdelgaleel, Nadeen Emad, Soheir E. Moftah, Basmala Samir, Esraa M. Hassan, Amany Abdelaziz

{"title":"Green Synchronous Spectrofluorimetric Method for Simultaneous Determination of Trifluridine and Tipiracil Used for Treatment of Colorectal Cancer in Pharmaceutical Products and Spiked Human Biological Fluids","authors":"Hesham Salem, Mahmoud Abdelgaleel, Nadeen Emad, Soheir E. Moftah, Basmala Samir, Esraa M. Hassan, Amany Abdelaziz","doi":"10.1002/bio.70064","DOIUrl":"https://doi.org/10.1002/bio.70064","url":null,"abstract":"<div>\u0000 \u0000 Trifluridine and tipiracil can now be determined simultaneously thanks to a novel, quick, sensitive, selective, environmentally friendly, and extremely sensitive approach. To determine the medications under study, the first derivative synchronous spectrofluorimetric technique was used. Trifluridine and tipiracil's first derivative amplitudes have been measured at their respective zero crossing points of 260 and 250 nm. The range of linearity was discovered to be of 5.0–30.0 ng mL−1 for each trifluridine and tipiracil. The limits of detection were found to be 0.834 and 0.376 ng mL−1, while the quantitation limits were 2.53 and 1.14 ng mL−1 for trifluridine and tipiracil, in respective order. The technique worked well for figuring out both medications in their lab-made mixes in various dosage forms and in spiked human biological fluids (spiked human plasma and urine). The outcomes were contrasted with those of HPLC techniques used in comparison. We employed ethanol as a green solvent. Trifluridine and tipiracil can be ascertained with a sufficient level of precision and accuracy using the suggested procedure: AGREE and Eco-scale. In comparison to HPLC procedures, the suggested method is inexpensive and straightforward.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861659","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 Photocatalytic Degradation of Reactive Dyes Under Visible Light Using ZnO/CdS/Co Nanocomposites: A Step Toward Advanced Environmental Remediation 利用 ZnO/CdS/Co 纳米复合材料增强可见光下活性染料的光催化降解：迈向先进环境修复的一步。

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-17 DOI: 10.1002/bio.70053

Velumani Arun, Arumugam Priyadharsan, Santhanam Sivakumar, Rajendran Ranjith, Murni Handayani, Muqoyyanah, Grace Gita Redhyka, Mohammad Ahmad Wadaan, Raja Mythili, Yosephin Dewiani Rahmayanti

{"title":"Enhanced Photocatalytic Degradation of Reactive Dyes Under Visible Light Using ZnO/CdS/Co Nanocomposites: A Step Toward Advanced Environmental Remediation","authors":"Velumani Arun, Arumugam Priyadharsan, Santhanam Sivakumar, Rajendran Ranjith, Murni Handayani,  Muqoyyanah, Grace Gita Redhyka, Mohammad Ahmad Wadaan, Raja Mythili, Yosephin Dewiani Rahmayanti","doi":"10.1002/bio.70053","DOIUrl":"10.1002/bio.70053","url":null,"abstract":"<div>\u0000 \u0000 In this study, ZnO, CdS, ZnO/CdS, and ZnO/CdS/Co nanostructures were successfully synthesized using a simple chemical precipitation method. The formation of these nanostructures was confirmed through x-ray diffraction (XRD), but their morphological properties were analyzed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Their optical properties were investigated using UV–visible diffuse reflectance spectroscopy (UV-DRS) and photoluminescence spectroscopy (PL). The photocatalytic activity of these materials was tested for the degradation of Reactive Blue 160 (RB 160) under visible light. It was observed that ZnO/CdS nanocomposites exhibited superior photocatalytic performance compared to pure ZnO. Furthermore, the inclusion of cobalt (Co) in the ZnO/CdS nanocomposites significantly enhanced this activity, likely due to improved visible light absorption. These findings suggest that ZnO/CdS/Co nanocomposites are promising candidates for efficient photocatalytic applications, particularly in environmental remediation under visible light.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848314","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

Optical and Band Gap Study of Violet-Blue Broadband Emitting Dy3+ Codoped Y2SiO5:Ce3+ Phosphor for nUV White Light-Emitting Diodes 用于 nUV 白光发光二极管的紫蓝色宽带发光 Dy3+ 共掺 Y2SiO5:Ce3+ 磷光体的光学和带隙研究。

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-17 DOI: 10.1002/bio.70042

R. S. Ukare, R. R. Kurzekar, G. D. Zade, A. N. Yerpude, S. J. Dhoble

{"title":"Optical and Band Gap Study of Violet-Blue Broadband Emitting Dy3+ Codoped Y2SiO5:Ce3+ Phosphor for nUV White Light-Emitting Diodes","authors":"R. S. Ukare, R. R. Kurzekar, G. D. Zade, A. N. Yerpude, S. J. Dhoble","doi":"10.1002/bio.70042","DOIUrl":"10.1002/bio.70042","url":null,"abstract":"<div>\u0000 \u0000 Y2SiO5:Ce3+, Y2SiO5:Dy3+, and Y2SiO5:Ce3+ and Dy3+ phosphors were successfully synthesized using the oxalate wet chemical method. Phase purity, emission and excitation spectra, FTIR, and the chromaticity coordinate were adopted to represent the performance of the samples. The photoluminescence (PL) spectrum Y2SiO5:Ce3+ and Dy3+ phosphor shows a broadband in violet-blue region with a bandwidth of nearly 75 nm due to combine effect of Ce3+–Dy3+ ions with another emission peaks of Dy3+ ions peaking at 574 nm. It has been discussed how the Ce3+–Dy3+ ion pair enhances the PL intensity of violet-blue light through efficient energy transfer (ET). The chromaticity coordinate of Y2SiO5:Ce3+ (1 mol%), Dy3+ (0.3 mol%) phosphors is 𝑥 = 0.167 and 𝑦 = 0.034. The CCT value is used to find color temperatures. The energy band gap and refractive index of Y2SiO5:Dy3+ are determined using the bonding parameter and Tauc's plot. Prepared phosphors might be an excellent choice for lighting applications based on all of the findings.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848316","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

Copper–Cobalt Nanozyme Mimicking Laccase for Sensitive Colorimetric Determination of Cannabidiol in Food and Cosmetics 模拟漆酶的铜钴纳米酶用于食品和化妆品中大麻二酚的灵敏比色测定

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-17 DOI: 10.1002/bio.70054

Le Wang, Qiulan Li, Dezhi Yang, Yaling Yang, Yanqin Zhu, Qinhong Yin

{"title":"Copper–Cobalt Nanozyme Mimicking Laccase for Sensitive Colorimetric Determination of Cannabidiol in Food and Cosmetics","authors":"Le Wang, Qiulan Li, Dezhi Yang, Yaling Yang, Yanqin Zhu, Qinhong Yin","doi":"10.1002/bio.70054","DOIUrl":"10.1002/bio.70054","url":null,"abstract":"<div>\u0000 \u0000 In colorimetric analysis, nanozymes are invaluable tools due to their simple production, long-lasting stability, and adaptable enzymatic activity, which enable them to induce changes in substrate color. In this study, a simple nanozyme-based colorimetric sensor was developed to detect cannabidiol (CBD) by using the laccase activity of the self-made MOF with copper and cobalt loading (Cu/Co@MOF) nanozyme, which was synthesized using a one-pot microwave method. The Cu/Co@MOF has the ability to catalyze the coupling reaction between 4-AP and various phenolic substrates, thereby converting colorless phenolic substrates into red substances. Notably, 16 ng/mL was the limit of detection. Based on Y = 0.137X + 0.003 equation, absorbance and CAN concentrations (0.067 to 10 μg/mL with a correlation value [R2] of 0.993) had a significant correlation. The developed colorimetric method was subsequently employed to determine CBD in facial masks and essential oil samples, resulting in relative standard deviations (RSDs) ranging from 1.4% to 4.3%. Therefore, this sensitive, cost-effective, and rapid method ensures an effective determination of CBD in food and cosmetics.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848312","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

MnCo2O4 Nanostructure Anchored on Functionalized Carbon Black for the Enhanced Bifunctional Electrocatalytic Performance of OER and HER 功能化炭黑固载MnCo2O4纳米结构增强OER和HER双功能电催化性能。

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-16 DOI: 10.1002/bio.70052

Sharmila Chandrasekaran, Shanmugam Vignesh, Mohammad Khalid Al-Sadoon, Raja Mythili, Krishnapandi Alagumalai, Elangovan Arumugam

{"title":"MnCo2O4 Nanostructure Anchored on Functionalized Carbon Black for the Enhanced Bifunctional Electrocatalytic Performance of OER and HER","authors":"Sharmila Chandrasekaran, Shanmugam Vignesh, Mohammad Khalid Al-Sadoon, Raja Mythili, Krishnapandi Alagumalai, Elangovan Arumugam","doi":"10.1002/bio.70052","DOIUrl":"10.1002/bio.70052","url":null,"abstract":"<div>\u0000 \u0000 The electrocatalytic oxygen and hydrogen evolution reactions (OER and HER) are key processes used in energy storage and conversion. We have developed a highly efficient MnCo2O4 nanostructure anchored with functionalized carbon black (MnCo2O4/f-CB), which has been characterized by XRD, FT-IR, Raman spectra, FE-SEM, and HR-TEM analyses as robust bifunctional electrocatalysts for both HER and OER. At a characteristic 10 mA cm−2 current density, the MnCo2O4/f-CB composite ECs exhibit low overpotentials of 330 mV for OER and 360 mV for HER, respectively. Furthermore, the MnCo2O4/f-CB composite ECs exhibit superior current density, the shortest Tafel slope, and admirable durable stability in OER and HER together. Due to the supported f-CB, the MnCo2O4 composite catalyst has more active sites, effective charge transfer, and longer durability. A high-efficiency dual electrocatalyst can be developed from these highly efficient and dual ECs, which are comparable to standard noble metal–based catalysts. The synergetic coupling effects of high-activity f-CB and MnCo2O4 composites with appropriate morphologies are critical factors for the enhanced catalytic performances of the MnCo2O4/f-CB composite.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840185","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

Targeting Yes-Associated Protein (YAP) in Breast Cancer: In Silico Molecular Dynamics, Luminescence-Based In Vitro, and In Vivo Validation of Rauvolfia tetraphylla-Derived Inhibitors 靶向yes相关蛋白（YAP）在乳腺癌中的作用：硅分子动力学，基于发光的体外和体内验证四叶草衍生抑制剂

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-16 DOI: 10.1002/bio.70051

B. Balavaishnavi, M. Kamaraj, T. G. Nithya, Sruthy Sathish, Thirumurthy Madhavan, Megha mahajan, Saravanan Pandiaraj

{"title":"Targeting Yes-Associated Protein (YAP) in Breast Cancer: In Silico Molecular Dynamics, Luminescence-Based In Vitro, and In Vivo Validation of Rauvolfia tetraphylla-Derived Inhibitors","authors":"B. Balavaishnavi, M. Kamaraj, T. G. Nithya, Sruthy Sathish, Thirumurthy Madhavan, Megha mahajan, Saravanan Pandiaraj","doi":"10.1002/bio.70051","DOIUrl":"10.1002/bio.70051","url":null,"abstract":"<div>\u0000 \u0000 The study aims to elucidate the pharmacological mechanism of Rauvolfia tetraphylla against breast cancer through a comprehensive, multi-faceted approach. This includes molecular docking, molecular dynamics, and experimental validation. Initial screening via ADME analysis and network pharmacology identified key compounds and potential targets. Protein–protein interaction (PPI) network analysis pinpointed Yes-associated protein-1 (YAP) as a crucial target. Molecular docking revealed that three compounds—ajmaline, reserpine, and serpentine—exhibited strong binding affinities with YAP, with scores of −6.5 to −6.7 kcal/mol. Molecular dynamics simulations were conducted to assess the stability of these interactions further. Experimental validation showed R. tetraphylla inhibited breast cancer cell proliferation, with an IC50 of 348.69 μg/mL, while demonstrating cytoprotective effects on Vero cells (IC50: 1056.23 μg/mL). Migration assays indicated an 88.5% reduction in cell migration, and increased ROS levels signaled elevated stress in cancer cells. Apoptosis was confirmed by AO/EtBr staining. In vivo validation in a DMBA-induced mouse model confirmed significant tumor growth inhibition, supported by changes in YAP expression and histopathological analysis. These findings highlight R. tetraphylla as a promising therapeutic candidate against breast cancer, offering insights into its mechanisms and potential for future drug development and clinical applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840186","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

Iron-Doped Cadmium Sulfide/Graphene Oxide (Cd(1-x)Fe(x)S/GO) Nanocomposites for Photocatalytic Degradation of Toxic Pollutants 铁掺杂硫化镉/氧化石墨烯(Cd（1-x)Fe(x)S/GO）纳米复合材料光催化降解有毒污染物

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-16 DOI: 10.1002/bio.70044

S. Dorothy, P. Sugumar, S. Meenakshi, Munusamy Settu, Sandhanasamy Devanesan, K. Kalpana, Saurav Dixit, K. Rajendran

{"title":"Iron-Doped Cadmium Sulfide/Graphene Oxide (Cd(1-x)Fe(x)S/GO) Nanocomposites for Photocatalytic Degradation of Toxic Pollutants","authors":"S. Dorothy, P. Sugumar, S. Meenakshi, Munusamy Settu, Sandhanasamy Devanesan, K. Kalpana, Saurav Dixit, K. Rajendran","doi":"10.1002/bio.70044","DOIUrl":"10.1002/bio.70044","url":null,"abstract":"<div>\u0000 \u0000 Heterogeneous photocatalysis has been widely explored as a promising solution for dye degradation due to its cost-effectiveness, ease of recovery, and use of green technology. Precisely, iron-doped cadmium sulfide (CdS) exhibits greater efficiency because of its higher charge separation, more electron transfer efficiency, and adsorption under visible region. In this study, two different ratios of iron-doped cadmium sulfide (Cd(1-x)Fe(x)S/GO) nanocomposites such as Cd0.95Fe0.05S/GO and Cd0.90Fe0.10S/GO were synthesized using the coprecipitation method and characterized with UV-Vis DRS, XRD, FT-IR, Raman, XPS, and HR-TEM. The nanocomposites have been employed to degrade the methyl orange under visible region and optimize the dopant ratio, amount of catalyst, and pH. From the results, it is observed that the composition with a high percentage of iron-doped CdS such as Cd0.90Fe0.10S/GO displayed better photocatalytic properties and improved the optimum ratio (0.9:0.1 for Cd:Fe). This may be attributed to the highest charge separation, increased number of defective sites, and enhanced visible-range adsorption owing to Fe doping. In addition to that, doping results reduce the band gap and size of the nanoparticles. It also increases recycling efficiency, reaching 93% after 10 cycles.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840183","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

High Efficiency and Narrow-Band Green Emission in Eu2+ and Mn2+ Co-Doped Na2MgAl10O17 Phosphor for Backlight Display Application Eu2+和Mn2+共掺Na2MgAl10O17荧光粉在背光显示中的高效窄带绿色发射

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-16 DOI: 10.1002/bio.70062

Xiaodeng Wu, Yujun Liang, Zeqian Liu, Gang Chen

{"title":"High Efficiency and Narrow-Band Green Emission in Eu2+ and Mn2+ Co-Doped Na2MgAl10O17 Phosphor for Backlight Display Application","authors":"Xiaodeng Wu, Yujun Liang, Zeqian Liu, Gang Chen","doi":"10.1002/bio.70062","DOIUrl":"10.1002/bio.70062","url":null,"abstract":"<div>\u0000 \u0000 Wide color gamut display has become a new generation of display technology because of its good color saturation. However, the low quantum efficiency and wide half peak width of narrow-band green phosphors are still the main barriers in their development and application. This work addresses these challenges by using Mn2+ as the luminescent center and constructing efficient Eu2+ → Mn2+ energy transfer in Na2MgAl10O17 (NMAO) matrix. The NMAO:0.15Eu2+, 0.30Mn2+ phosphor presents a single-band emission peaking at 513 nm with a full width at half maximum (FWHM) of only 33 nm under the excitation of 365 nm LED chip. In addition, under the excitation wavelength of 365 nm, the energy transfer efficiency reaches 74%. Compared with the NMAO:0.30Mn2+, the intensity of the NMAO:0.15Eu2+, 0.30Mn2+ increases by 5.5 times and the internal quantum efficiency is up to 61.82%. A white LED device with the CIE coordinates of (0.2871, 0.3472) and a color gamut area of 94% NTSC has been assembled successfully by combining 365 nm LED chips with NMAO:0.15Eu2+, 0.30Mn2+, BaMgAl10O17:Eu2+, and K2SiF6:Mn4+ as green, blue, and red component. This work enriches the relevant content of Mn2+-doped phosphors and provides a constructive insight into improving luminescent performance through energy transfer.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840181","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

Curcumin-Derived Turn-Off Fluorescent Probe for Copper (II) Ion Detection and Live Cell Imaging Applications 用于铜 (II) 离子检测和活细胞成像应用的姜黄素衍生熄灭荧光探针。

IF 3.2 4区化学

Luminescence Pub Date : 2024-12-12 DOI: 10.1002/bio.70047

Pappian Rajam, Alagan Jeevika, Rajaram Mahalakshmy

{"title":"Curcumin-Derived Turn-Off Fluorescent Probe for Copper (II) Ion Detection and Live Cell Imaging Applications","authors":"Pappian Rajam, Alagan Jeevika, Rajaram Mahalakshmy","doi":"10.1002/bio.70047","DOIUrl":"10.1002/bio.70047","url":null,"abstract":"<div>\u0000 \u0000 A curcumin-derived chemosensor 4,4′-((1E,3Z,5Z,6E)-3,5-bis((2hydroxyphenyl)imino) hepta-1,6-diene-1,7-diyl)bis(2-methoxyphenol) (HIBMP) was developed from curcumin and o-aminophenol using Schiff base condensation method. HIBMP selectively recognizes Cu (II) ion (Cu (II)) relative to other tested metal ions. Selective binding of Cu (II) ion turns off the fluorescent property of HIBMP and shows no interference with other metal ions. Moreover, the favourable binding of Cu (II) with HIBMP was noticed by a good linearity between the fluorescence intensity and concentration of Cu (II) with a range of 0–15.6 × 10−7 M, and the limit of detection was determined to be as low as 30.1 nM. Furthermore a 1:1 stoichiometry was identified from the results of Job's plot and HR-MS. Density functional theory (DFT) calculation results expressed that the intramolecular charge transfer (ICT) during chelation is responsible for quenching of fluorescence. Besides, the fluorescence life time measurement and ethylenediaminetetraacetic acid (EDTA) titration method revealed the stability and reversibility of the sensor. Practical use of the sensor was achieved through the quantitative analysis of spiked Cu (II) ion in real water samples with good recoveries, and biological experiments exposed that the sensor was less toxic and could be applied in fluorescence imaging of Cu (II) in living cells.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 12","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819940","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