Pub Date : 2026-03-17DOI: 10.1007/s10895-026-04744-1
Yi Shi, Hongling Ge, Ge Li, Benhua Xu
{"title":"Glutathione-Modified MoS<sub>2</sub> Quantum Dots for Detection of Fe<sup>3+</sup> and Ag<sup>+</sup> ions in Water and Cell Imaging Applications.","authors":"Yi Shi, Hongling Ge, Ge Li, Benhua Xu","doi":"10.1007/s10895-026-04744-1","DOIUrl":"https://doi.org/10.1007/s10895-026-04744-1","url":null,"abstract":"","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147474041","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}
Mononuclear Ru(II)Polypyridyl complexes of type [Ru(A)2MTZIP] (ClO4)2.2H2O, where MTZIP = (2-(4-methyl thiazol-5-yl)-1 H-imidazole [4,5-f] [1, 2] phenanthroline and A = phen = 1,10 Phenanthroline (1), bpy = 2, 2'- bipyridine (2), dmp = 4,4'-dimethyl-1,10 -Ortho Phenanthroline (3) & dmb = 4, 4' -dimethyl 2, 2'- bipyridine (4) were synthesized and their biological activity were examined. Biophysical techniques (absorption, emission methods, and viscosity) ascertains that intercalation is the primary mechanism by which Ru (II) polypyridyl complexes bind to DNA.The intrinsic binding constant (kobs) data show 1 > 2>3 > 4, indicating the phen complex (1.0 × 106) has a higher binding capacity than the bpy, dmp, and dmb (4.5 × 105,3.5 × 105, 2.0 × 105), demonstrating the auxiliary ligand effect on the specificity of DNA binding. The HOMO-LUMO gap (Eg) values for the complexes 1-4 are in the range of 5.6375-5.7398 eV, ligand MTZIP (7.3026 eV), indicative of a more reactivity for complexes. The 3D contour maps show that in complexes LUMO is primarily concentrated on or near the Ru (II) metal ion and auxiliary ligands; on the contrary, the HOMO has constraints to the intercalating ligand's nitrogen. The phen complex has greater chemical reactivity than the bpy, dmp and dmb complexes, so complex 1 is more vulnerable to nucleophilic attack. All four complexes were active against Gram-positive bacterial pathogens (Staphylococcus and Bacillus strains) as well as Gram-negative bacterial species (E. Coli and Klebsiella) and antifungal activity (candida, aspergillus). All the complexes showed good anticancer activity, but the phen complex with IC50 = 22.89 ± 0.814 against the MCF-7 cell line.
{"title":"An Experimental and Molecular modelling Study of Ruthenium(II) Polypyridyl Complexes with a Thiazole-Imidazo-Phenanthroline Ligand and their DNA Affinity.","authors":"Navaneetha Nambigari, Sravani Gudikandula, Satyanarayana Sirasani","doi":"10.1007/s10895-026-04723-6","DOIUrl":"https://doi.org/10.1007/s10895-026-04723-6","url":null,"abstract":"<p><p>Mononuclear Ru(II)Polypyridyl complexes of type [Ru(A)<sub>2</sub>MTZIP] (ClO<sub>4</sub>)<sub>2</sub>.2H<sub>2</sub>O, where MTZIP = (2-(4-methyl thiazol-5-yl)-1 H-imidazole [4,5-f] [1, 2] phenanthroline and A = phen = 1,10 Phenanthroline (1), bpy = 2, 2'- bipyridine (2), dmp = 4,4'-dimethyl-1,10 -Ortho Phenanthroline (3) & dmb = 4, 4' -dimethyl 2, 2'- bipyridine (4) were synthesized and their biological activity were examined. Biophysical techniques (absorption, emission methods, and viscosity) ascertains that intercalation is the primary mechanism by which Ru (II) polypyridyl complexes bind to DNA.The intrinsic binding constant (k<sub>obs</sub>) data show 1 > 2>3 > 4, indicating the phen complex (1.0 × 10<sup>6</sup>) has a higher binding capacity than the bpy, dmp, and dmb (4.5 × 10<sup>5</sup>,3.5 × 10<sup>5</sup>, 2.0 × 10<sup>5</sup>), demonstrating the auxiliary ligand effect on the specificity of DNA binding. The HOMO-LUMO gap (Eg) values for the complexes 1-4 are in the range of 5.6375-5.7398 eV, ligand MTZIP (7.3026 eV), indicative of a more reactivity for complexes. The 3D contour maps show that in complexes LUMO is primarily concentrated on or near the Ru (II) metal ion and auxiliary ligands; on the contrary, the HOMO has constraints to the intercalating ligand's nitrogen. The phen complex has greater chemical reactivity than the bpy, dmp and dmb complexes, so complex 1 is more vulnerable to nucleophilic attack. All four complexes were active against Gram-positive bacterial pathogens (Staphylococcus and Bacillus strains) as well as Gram-negative bacterial species (E. Coli and Klebsiella) and antifungal activity (candida, aspergillus). All the complexes showed good anticancer activity, but the phen complex with IC<sub>50</sub> = 22.89 ± 0.814 against the MCF-7 cell line.</p>","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147433164","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}
Pub Date : 2026-03-10DOI: 10.1007/s10895-026-04729-0
Riya Khandelwal, Mahesh Vasava, Prasenjit Maity, Chintan Parmar, Hitesh D Patel, Abhijitsinh Parmar
{"title":"Fluorescent Phenanthro-Imidazole-Based Chemosensors for the Detection of Primary and Nitro-aromatic Explosives.","authors":"Riya Khandelwal, Mahesh Vasava, Prasenjit Maity, Chintan Parmar, Hitesh D Patel, Abhijitsinh Parmar","doi":"10.1007/s10895-026-04729-0","DOIUrl":"https://doi.org/10.1007/s10895-026-04729-0","url":null,"abstract":"","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147433188","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}
Pub Date : 2026-03-09DOI: 10.1007/s10895-026-04732-5
Carlos A Peñuelas-Gámez, Manuel Luque-Román, Alberto Báez-Castro, Tomás Delgado-Montiel, Samuel Soto-Acosta, Rody Soto-Rojo, Laura Ceballos-Mendivil, Daniel Glossman-Mitnik, Jesús Baldenebro-López
{"title":"Triphenylamine vs Triphenylphosphine Donors in D-A and D-π-A Frameworks: A DFT/TD-DFT Roadmap for DSSCs and OLEDs.","authors":"Carlos A Peñuelas-Gámez, Manuel Luque-Román, Alberto Báez-Castro, Tomás Delgado-Montiel, Samuel Soto-Acosta, Rody Soto-Rojo, Laura Ceballos-Mendivil, Daniel Glossman-Mitnik, Jesús Baldenebro-López","doi":"10.1007/s10895-026-04732-5","DOIUrl":"https://doi.org/10.1007/s10895-026-04732-5","url":null,"abstract":"","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147390270","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}
Pub Date : 2026-03-06DOI: 10.1007/s10895-026-04718-3
Long Liu, Jiayi Chen, Meijun Ye, Wen Huang, Xiang Liao, Hanqing Wu, Jingshui Xu
Heavy metal Cu2+ from industrial discharge continuously accumulates in ecosystems, posing threats to human health and ecological balance. Researchers successfully synthesized a novel fluorescent probe, TPA-OPD, via a Schiff base reaction between triphenylamine and o-phenylenediamine. TPA-OPD exhibits rapid, highly selective, and sensitive fluorescence quenching in response to Cu2+, along with excellent anti-interference capability. The binding mechanism between Cu²⁺ and TPA-OPD was confirmed by Job's plot, Fourier-transform infrared spectroscopy, mass spectrometry, nuclear magnetic resonance, and Gaussian calculations. TPA-OPD effectively detects Cu2+ in real-world environmental samples such as tap water and river water, demonstrating strong potential for monitoring Cu2+ pollution.
{"title":"A Schiff Base-Functionalized Triphenylamine Fluorescent Probe for Selective and Sensitive Detection of Cu<sup>2+</sup> in Aqueous Media.","authors":"Long Liu, Jiayi Chen, Meijun Ye, Wen Huang, Xiang Liao, Hanqing Wu, Jingshui Xu","doi":"10.1007/s10895-026-04718-3","DOIUrl":"https://doi.org/10.1007/s10895-026-04718-3","url":null,"abstract":"<p><p>Heavy metal Cu<sup>2+</sup> from industrial discharge continuously accumulates in ecosystems, posing threats to human health and ecological balance. Researchers successfully synthesized a novel fluorescent probe, TPA-OPD, via a Schiff base reaction between triphenylamine and o-phenylenediamine. TPA-OPD exhibits rapid, highly selective, and sensitive fluorescence quenching in response to Cu<sup>2+</sup>, along with excellent anti-interference capability. The binding mechanism between Cu²⁺ and TPA-OPD was confirmed by Job's plot, Fourier-transform infrared spectroscopy, mass spectrometry, nuclear magnetic resonance, and Gaussian calculations. TPA-OPD effectively detects Cu<sup>2+</sup> in real-world environmental samples such as tap water and river water, demonstrating strong potential for monitoring Cu<sup>2+</sup> pollution.</p>","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147365498","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}
Pub Date : 2026-03-06DOI: 10.1007/s10895-025-04670-8
Dipti Sahu, Akshkumar Verma, Kanchan Tiwari, Chitrakant Belodhiya, Tripti Richhariya, Akesh Kumar, D P Bisen, Nameeta Brahme
{"title":"Synthesis and Characterization of Orange-Red Emitting Li<sub>4</sub>SrCa(SiO<sub>4</sub>)<sub>2</sub>: Sm<sup>3+</sup> Phosphor for Solid- State Lighting and Dosimetry Application.","authors":"Dipti Sahu, Akshkumar Verma, Kanchan Tiwari, Chitrakant Belodhiya, Tripti Richhariya, Akesh Kumar, D P Bisen, Nameeta Brahme","doi":"10.1007/s10895-025-04670-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04670-8","url":null,"abstract":"","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147365528","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}
{"title":"Synthesis and Characterization of Terpyridine Derivatives as Fluorescence Probe for Selective Detection of Ga<sup>3+</sup> Ions in Acidic Conditions.","authors":"Erfu Huo, Mikhail Atroshko, Ming Feng, Pengfei Yang, Weiqin Cheng, Congcong Zhao, Siyamak Shahab, Yanhua Wang, Nasrin Masnabadi","doi":"10.1007/s10895-026-04731-6","DOIUrl":"https://doi.org/10.1007/s10895-026-04731-6","url":null,"abstract":"","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147355355","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}
Pub Date : 2026-03-03DOI: 10.1007/s10895-026-04735-2
Namita Naiknaware, Ajit H Deshmukh, Sanjay S Chavan
{"title":"Multifunctional Binuclear Ru(III) Complexes with Alkynyl-Imine Bridges: Electrochemical, Luminescent, and Nonlinear Optical Properties.","authors":"Namita Naiknaware, Ajit H Deshmukh, Sanjay S Chavan","doi":"10.1007/s10895-026-04735-2","DOIUrl":"https://doi.org/10.1007/s10895-026-04735-2","url":null,"abstract":"","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147344224","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}
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