Luminescence最新文献_第8页

Biological and Chemical Assessment of the Liposomes Carrying a Herbal MRI Contrast Agent

IF 3.2 4区化学

Luminescence Pub Date : 2025-02-02 DOI: 10.1002/bio.70039

Ali Yazdani, Mohammad Mahdi Ochi, Nafiseh Hassani, Maryam Saber, Ahmadreza Okhovat, Hamid Soltanian-Zadeh

{"title":"Biological and Chemical Assessment of the Liposomes Carrying a Herbal MRI Contrast Agent","authors":"Ali Yazdani, Mohammad Mahdi Ochi, Nafiseh Hassani, Maryam Saber, Ahmadreza Okhovat, Hamid Soltanian-Zadeh","doi":"10.1002/bio.70039","DOIUrl":"10.1002/bio.70039","url":null,"abstract":"<div>\u0000 \u0000 This study investigates the development and characterization of liposomes as carriers for a novel herbal contrast agent for magnetic resonance imaging (MRI). Liposomes were synthesized using phosphatidylcholine and cholesterol for the lipid bilayer membrane and a polar fraction isolated from the “Suaeda” plant for the aqueous phase. The encapsulation efficiency, size, zeta potential, stability, and morphology of the liposomes were evaluated using various techniques. Additionally, by cytotoxicity assays, we contrasted the toxicity of the encapsulated contrast agent to the nonencapsulated form. Finally, relaxivity computations were performed to assess the suitability of the liposomal agent for MRI applications. The liposomal contrast agent had suitable physical properties (stable mean size of 163 nm and zeta potential of −60 mV) and better biochemical characteristics than nonencapsulated media. The liposomal agent demonstrated increased relaxivity and acceptable cytotoxicity with a contrast-making concentration. Therefore, the encapsulated herbal contrast agent can be useful for biological applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143081825","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

One-Step Green Hydrothermal-Assisted Synthesis of Carbon Quantum Dots From Robinia hispida L. Flowers, and Flourimetric Detection of Au3+ Ions in Aqueous Media

IF 3.2 4区化学

Luminescence Pub Date : 2025-02-02 DOI: 10.1002/bio.70099

Aysel Başoğlu

引用次数: 0

Synthesis and Characterization of K2Ba3(P2O7)2:VO2+ Nanopowder: Reddish-Orange Emission for LED Applications

IF 3.2 4区化学

Luminescence Pub Date : 2025-02-01 DOI: 10.1002/bio.70114

K. Josephus Alex Libnah, Y. V. K. Suresh, N. Ch. Anjaneyulu, R. V. S. S. N. Ravikumar

{"title":"Synthesis and Characterization of K2Ba3(P2O7)2:VO2+ Nanopowder: Reddish-Orange Emission for LED Applications","authors":"K. Josephus Alex Libnah, Y. V. K. Suresh, N. Ch. Anjaneyulu, R. V. S. S. N. Ravikumar","doi":"10.1002/bio.70114","DOIUrl":"10.1002/bio.70114","url":null,"abstract":"<div>\u0000 \u0000 Solid-state reaction method is employed to prepare K2Ba3(P2O7)2:VO2+ nanopowder and studied by using powder x-ray diffraction (XRD), scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, optical absorption spectroscopy, electron paramagnetic resonance (EPR) spectroscopy, and photoluminescence (PL) spectroscopy. XRD studies revealed VO2+ ion doped K2Ba3(P2O7)2 nanopowder have 21 nm crystallite size, orthorhombic phase, and Pmn21 space group. From Williamson–Hall analysis, crystallite size is found as 24 nm. SEM morphology recorded the presence of irregular-sized and round-shaped agglomerates. FT-IR and Raman spectra reveal characteristic bands of phosphate groups. Three characteristic peaks are observed at 848, 695, and 452 nm in optical absorption spectrum. Also, crystal and tetragonal field parameters are calculated as Dq = 1439, Ds = −2789, and Dt = 3422 cm−1. In addition, bandgap energy is found as 3.97 eV. Optical and EPR analyses led to understand the incorporation of vanadyl ions into host lattice. Spin Hamiltonian parameters are evaluated. Basing PL spectrum, Commission Internationale de l'Éclairage's (CIE) chromaticity coordinates are calculated, which are present in reddish-orange region with good color correlated temperature (CCT) and color rendering index (CRI) values facilitating the use in lighting applications and LEDs.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143076256","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

Nitrogen-Doped Carbon Dots Prepared via Microchannel Method for Visual Detection of Copper Ions

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-31 DOI: 10.1002/bio.70113

Yunfei Ma, Songtao Wang, Wei Sun, Longlong Zhou, Yiqing Deng, Qiang Zhao

{"title":"Nitrogen-Doped Carbon Dots Prepared via Microchannel Method for Visual Detection of Copper Ions","authors":"Yunfei Ma, Songtao Wang, Wei Sun, Longlong Zhou, Yiqing Deng, Qiang Zhao","doi":"10.1002/bio.70113","DOIUrl":"10.1002/bio.70113","url":null,"abstract":"<div>\u0000 \u0000 Copper ions (Cu2+) play a crucial role in biological processes; however, excessive intake can result in severe health problems. Current methods for detecting copper ions are both expensive and complex. Therefore, there is a need for efficient and straightforward visual detection methods. In this study, novel nitrogen-doped carbon dots (N-CDs) were synthesized via a microchannel method using diethylenetriamine and citric acid as precursors and were characterized by TEM, XRD, and IR, among others. The N-CDs demonstrated high selectivity and strong fluorescence, showing a linear quenching response to copper ions with a detection limit of 46 nM, whereas other common metal ions, such as Ca2+ and Mg2+, exhibited negligible interference even at higher concentrations. These N-CDs were subsequently applied to test paper, allowing for on-site visual and quantitative detection of copper ions via a colorimetric method. This approach provides a novel solution for the rapid detection of copper ions, with significant potential in environmental monitoring, public health, and industrial applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143068538","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 Probe for Detection of Malathion Using Sulfur Quantum Dots@Graphitic-Carbon Nitride Nanocomposite

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-31 DOI: 10.1002/bio.70112

Jothi Vinoth Kumar, Jong-Whan Rhim

引用次数: 0

Location of 7-Aminoactinomycin D in Micellar Medium Depends on Ionic Nature of the Surfactant Head Group

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-31 DOI: 10.1002/bio.70111

Debatri Shit, Pabitra Mandal, Smritimoy Pramanik

{"title":"Location of 7-Aminoactinomycin D in Micellar Medium Depends on Ionic Nature of the Surfactant Head Group","authors":"Debatri Shit, Pabitra Mandal, Smritimoy Pramanik","doi":"10.1002/bio.70111","DOIUrl":"10.1002/bio.70111","url":null,"abstract":"<div>\u0000 \u0000 7-Aminoactinomycin D (7AAMD) is the fluorescent analogue of the anticancer drug actinomycin D (AMD). In order to overcome toxic side effects and enhanced bioavailability of 7AAMD, micellar drug carrier systems could be useful. We have used cationic (hexadecetyltrimethylammonium bromide [CTAB]), anionic (sodium dodecyl sulphate [SDS]) and non-ionic (t-octylphenoxypolyoxyethanol, Triton-X100 [TX 100]) surfactants to prepare micelle. We have explored the mechanism of the interaction of 7AAMD with micelles using steady-state and time-resolved fluorescence spectroscopy. Our results revealed that the Stokes' shift values of 7AAMD were decreased in all three micellar medium compared to that in the absence of any micelle. Thus, 7AAMD is localized in less polar microenvironment of micelles than bulk water. In addition, from the time-resolved fluorescence study of 7AAMD, we found that the relative contribution of the conformers of 7AAMD depended on the surfactant head group. Furthermore, acrylamide induced fluorescence quenching study shows differential accessibility of the quencher molecules towards 7AAMD depending on the ionic nature of the surfactant head group. In the presence of acrylamide, 7AAMD was expelled out from the non-ionic TX 100 micelle but not in CTAB and SDS micelle. Thus, our results are valuable to design new drug delivery system for AMD-like antitumor agents.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143068528","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

Employing Diaryl Pyrrolone Fluorescence With Ninhydrin and Phenylacetaldehyde for Sensitive Determination of Alendronate Sodium in Bulk and Pharmaceutical Tablets: Evaluation of Method Greenness

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-31 DOI: 10.1002/bio.70110

Sayed M. Derayea, Fatma F. Mohammed

{"title":"Employing Diaryl Pyrrolone Fluorescence With Ninhydrin and Phenylacetaldehyde for Sensitive Determination of Alendronate Sodium in Bulk and Pharmaceutical Tablets: Evaluation of Method Greenness","authors":"Sayed M. Derayea, Fatma F. Mohammed","doi":"10.1002/bio.70110","DOIUrl":"10.1002/bio.70110","url":null,"abstract":"<div>\u0000 \u0000 Alendronate sodium (ALN) is used to treat osteoporosis in men and women who experienced menopause. A new, sensitive, environmentally friendly, selective, and reasonably priced spectrofluorimetric technique was devised for ALN determination utilizing the reaction of the drug with ninhydrin and phenylacetaldehyde in the presence of Teorell–Stenhagen buffer (pH 7). The interaction yielded a highly luminescent diaryl pyrrolone product with strong emission at 464 nm following excitation at 390 nm. Optimization of various method parameters was performed, and a calibration curve was constructed. Linear regression statistical analysis shows a highly strong correlation (r = 0.9995). The method could determine ALN in the linear concentration range of 0.5–4.0 μg mL−1. Adopting ICH guidelines criteria, method validation was done, and the results confirmed the acceptable accuracy and precision. The LOD and LOQ values were computed as 0.13 and 0.41 μg mL−1, respectively. Application of the method for the analysis of oral tablets containing ALN alone or combined with vitamin D3 was successfully performed with no interferences from vitamin D3 or other coformulated excipients, proving excellent selectivity. Moreover, the method was evaluated for environmental greenness via three different tools confirming its acceptable greenness. Hence, the method can be successfully utilized in quality control laboratories.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143069199","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 and Sustainable Spectrofluorometric Determination of Nitrofurantoin in Pure Form and Water Samples Using Functionalized Carbon Quantum Dots

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-24 DOI: 10.1002/bio.70107

Rami M. Alzhrani, Atiah H. Almalki, Maram H. Abduljabbar, Ahmed H. Abdelazim

{"title":"Green and Sustainable Spectrofluorometric Determination of Nitrofurantoin in Pure Form and Water Samples Using Functionalized Carbon Quantum Dots","authors":"Rami M. Alzhrani, Atiah H. Almalki, Maram H. Abduljabbar, Ahmed H. Abdelazim","doi":"10.1002/bio.70107","DOIUrl":"10.1002/bio.70107","url":null,"abstract":"<div>\u0000 \u0000 The environmental impact of chemicals used in aquaculture, particularly nitrofurantoin, has raised global concern. Nitrofurantoin, a broad-spectrum antimicrobial, is commonly used in aquaculture despite safety risks. Determination of nitrofurantoin in water samples of fish ponds is necessary to ensure the safety and quality of seafood. Herein, a new spectrofluorometric method was created for the determination of nitrofurantoin in water samples from fish ponds. Carbon quantum dots were functionalized with nitrofurantoin tetra phenyl borate modifying their surface to be selective for nitrofurantoin quantification. When nitrofurantoin is present, the functionalized carbon quantum dots show concentration-dependent fluorescence quenching, allowing estimation of the drug. The method was validated and demonstrated accepted linearity in the range of 5–150 ng/mL, with a limit of detection at 1.251 ng/mL. The method offers a broader and more sensitive detection range compared with a previous UHPLC method. Additionally, the environmental friendliness of the described method was conducted and compared with the reported UHPLC method using the analytical eco-scale and the analytical greenness metric. The results demonstrate that the current method exhibits higher levels of sustainability compared with the previously reported method.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143042707","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

Photoinduced Chemiluminescence Determination of Prednisolone Using Lucigenin-Cobalt 5,10,15,20-Tetra(4-Pyridyl)-21H,23H-Porphine System

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-23 DOI: 10.1002/bio.70096

Sayed Yahya Kazemi

{"title":"Photoinduced Chemiluminescence Determination of Prednisolone Using Lucigenin-Cobalt 5,10,15,20-Tetra(4-Pyridyl)-21H,23H-Porphine System","authors":"Sayed Yahya Kazemi","doi":"10.1002/bio.70096","DOIUrl":"10.1002/bio.70096","url":null,"abstract":"<div>\u0000 \u0000 Sensitive and precise assay of prednisolone, a steroid hormone, has received great attention due to its significant role in the treatment of a series of diseases. In this study, we have developed a simple, quick, and accurate technique in this part to measure prednisolone. Cobalt 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine (CoTPyP) as a mimic peroxidase catalyzes the chemiluminescence (CL) reaction of lucigenin for the first time. CoTPyP has a great impact on the CL signal. Furthermore, the CL system has been successfully used for the prednisolone flow-injection test. The findings showed that the UV irradiation of prednisolone led to an unimolecular photochemical reaction that could enhance yield of high-energy intermediate and cause higher CL emission. Under ideal experimental circumstances, CL intensity was shown to be proportionate to prednisolone concentration in the range of 0.1–170 μg mL−1 (r = 0.9925, n = 4). A detection limit of 0.072 μg mL−1 was observed. Compared with the HPLC approach, our proposed method provides a sensitive, fast, and efficient analysis of prednisolone in pharmaceutical formulations and biological fluids.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143025242","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

Fluorometric Turn Off Detection of Cu2+ and Pd2+ Ions Using 1-(Imidazo[5,1-a]isoquinolin-3-yl)naphthalen-2-ol

IF 3.2 4区化学

Luminescence Pub Date : 2025-01-23 DOI: 10.1002/bio.70104

Sandeep Kumar, Hitesh Phogat, Vadivelu Manivannan

{"title":"Fluorometric Turn Off Detection of Cu2+ and Pd2+ Ions Using 1-(Imidazo[5,1-a]isoquinolin-3-yl)naphthalen-2-ol","authors":"Sandeep Kumar, Hitesh Phogat, Vadivelu Manivannan","doi":"10.1002/bio.70104","DOIUrl":"10.1002/bio.70104","url":null,"abstract":"<div>\u0000 \u0000 The fused heterocycle 1-(imidazo[5,1-a]isoquinolin-3-yl)naphthalen-2-ol (LH) has been synthesized and characterized by spectroscopic methods. Probe LH upon irradiation with λex = 336 nm exhibited strong fluorescence with λem = 437 nm in MeOH/HEPES buffer (5 mM, pH = 7.4, 2:8, v/v). Upon adding several metal ions, the fluorescence intensity was quenched only by Cu2+ and Pd2+ ions. This fluorescence turn-off response by Cu2+ and Pd2+ ions was observed even in the coexistence of other metal ions and anions. From the Job's plot and mass spectra analysis, a 2:1 ratio of LH:M2+ was obtained, and the composition [Cu(L)2H2O] and [Pd(L)2] has been assigned. The detection limit for Cu2+ and Pd2+ ions was determined to be 0.24 and 0.35 μM, respectively, and workable pH window to be 4–10. The binding of LH to Cu2+ and Pd2+ resulted in red-shift in the UV–visible spectrum, which was supported by DFT/TDDFT calculations.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143025241","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