Dyes and Pigments最新文献

{"title":"Molecular engineering of a D-A type fluorescent probe with AIE properties for c-MYC G-quadruplex DNA","authors":"Jing-Zhi Li,&nbsp;Luo-Cheng Liu,&nbsp;Hai-Wen Chen,&nbsp;Liang-Fei Gao,&nbsp;Lu-Yu Li,&nbsp;Ze-Kai Li,&nbsp;Ming-Qi Wang","doi":"10.1016/j.dyepig.2025.112814","DOIUrl":"10.1016/j.dyepig.2025.112814","url":null,"abstract":"<div><div>The development of fluorescent dyes that can selectively interact with specific G-quadruplex (G4) DNA structures is crucial for understanding the regulatory roles of G4s in the genome and for new drug discovery. Most reported G4 probes based on the D-π-A system may be susceptible to the aggregation-caused quenching (ACQ) effect, resulting in decreased or extinguished emission in the aggregate state or at high concentrations. Fluorescent molecules with aggregation-induced emission (AIE) characteristics can effectively alleviate nonradiative pathways in the aggregated state, thereby generating bright and stable fluorescence. Therefore, incorporating AIE features into G4 probes is highly desirable. In this work, we report an AIE-active styrylcarbazole-bridged push-pull dye named <strong>HP-2</strong>, which exhibits a preference for interacting with c-MYC G4 DNA structure over a pool of nucleic acid structures containing G4, duplex, single-stranded DNA and RNA structures, as well as protein structures. We demonstrate that the functional substituent of <em>N</em>-methylpiperazine group in <strong>HP-2</strong> not only activates the AIE effect of the dye, but also plays pivotal roles in providing additional c-MYC G4 binding interactions to the dye, resulting in a robust turn-on fluorescence response with a low detection limit of 18 nM. Furthermore, its <em>low cytotoxi</em>city and high live-cell permeability make <strong>HP-2</strong> suitable for visualizing DNA in the nucleus. Our study has demonstrated the tunability of photophysical and G4 DNA targeting properties in styrylcarbazole-bridged push-pull dyes through functional substituent attachment to the electron-acceptor moiety. This work provides insights and strategies for designing more AIE-based fluorescent probes targeting a specific G4 DNA structure.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112814"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facile synthesis of dual-ligand Eu-MOF for ratiometric fluorescence and smartphone-assisted visual detection of Al3+","authors":"Xinyue Ge,&nbsp;Jibing Chen,&nbsp;Shixiao Guo,&nbsp;Yan Zhao,&nbsp;Weiheng Kong,&nbsp;Ensheng Zhang,&nbsp;Lian Xia,&nbsp;Rong-Mei Kong","doi":"10.1016/j.dyepig.2025.112812","DOIUrl":"10.1016/j.dyepig.2025.112812","url":null,"abstract":"<div><div>In this study, a neoteric dual-ligand europium metal-organic framework (Eu-MOF) was synthesized by a simple one-pot method for visual detection of Al³⁺. The Eu-MOF was prepared with 2,5-dihydroxyterephthalic acid (H₂DHT) and dipicolinic acid (DPA) as dual-ligand and Eu³⁺ ions as a metal node, also denoted as Eu–H₂DHT/DPA. Benefitting from the specific coordination of Al³⁺ by hydroxyl group of the ligand H₂DHT, the emission at 515 nm derived from H₂DHT increased significantly through an excited-state intramolecular proton transfer (ESIPT) mechanism. However, the emission at 620 nm from Eu³⁺ changed slightly which was used as the reference signal. The Eu–H₂DHT/DPA probe exhibited clearly recognizable color change from orange-red to yellow-green with the increasing Al³⁺ concentration. In conjunction with smartphone to read color hue, the sensitive visual quantitative detection of Al³⁺ was realized. Moreover, the feasibility of detection of Al³⁺ in real water samples was verified. This study offers a sensitive and convenient route in the design and fabrication of novel fluorescence ratiometric probe with self-calibration model for detection of contaminants in practical water samples.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112812"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A feasible strategy for fabricating thermally stable CaSnO3:Eu3+ one-dimensional nanostructures with excellent luminescence","authors":"Xue Teng,&nbsp;Ning Li,&nbsp;Xiaohan Liu,&nbsp;Hong Shao,&nbsp;Xinran Zhang,&nbsp;Dan Li,&nbsp;Wensheng Yu,&nbsp;Qianli Ma,&nbsp;Guixia Liu,&nbsp;Xiangting Dong","doi":"10.1016/j.dyepig.2025.112816","DOIUrl":"10.1016/j.dyepig.2025.112816","url":null,"abstract":"<div><div>Preparation of rare-earth (RE) ion-doped CaSnO₃ one-dimensional (1D) nanostructures with superior luminescent performances by using a simple and universal synthesis method has great research significance. In the work, CaSnO₃:Eu³⁺ 1D nanostructures including nanofibers and nanobelts doped with Eu³⁺ activators as representative cases are devised and facilely prepared via a uniaxial electrospinning technique combined with an oxidative calcination process. CaSnO₃:Eu³⁺ 1D nanostructures with perovskite structure belong to orthogonal system with a space group of Pbnm. CaSnO₃:Eu³⁺ nanofibers and nanobelts exhibit emission peaks (λ_ex = 279 nm) at 582, 592, 616, and 655 nm. These peaks come from ⁵D₀→⁷F_J (J = 0, 1, 2, 3) transitions of Eu³⁺, respectively. CIE chromaticity coordinates indicate that emitting colors range from orange to red region depending on Eu³⁺ concentrations, and color purity ranges from 50.38 % to 87.42 %. CaSnO₃:13 %Eu³⁺ nanofibers show good thermal stability, and luminous intensity at 423 K is 80.43 % of that at 298 K. Morphologies of 1D nanostructures can be regulated by adjusting spinning liquid viscosity and spinning parameters, and further morphologies can modulate luminescent color of nanostructures. Meanwhile, the luminescence mechanism is elucidated and formation mechanisms of CaSnO₃:Eu³⁺ nanofibers and nanobelts are proposed. Further, a new technology for preparing CaSnO₃ nanofibers and nanobelts doped with RE is erected. This work has enriched the nanostructures of alkaline earth stannate luminescent materials, and the synthetic technique can be utilized for fabrication of other RE-doped alkaline earth stannate 1D luminescent nanomaterials with good thermal stability. The prepared material has broad applications in the realms of lighting, displaying, and sensing.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112816"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Orientation tuning by modulating end group of small-molecule donors boosts efficiency of all-small-molecule organic solar cells","authors":"Ning Yang ,&nbsp;Du Hyeon Ryu ,&nbsp;Yongqi Bai ,&nbsp;Suha Lee ,&nbsp;Seo-Hyun Jung ,&nbsp;Chang Eun Song ,&nbsp;Do-Hoon Hwang","doi":"10.1016/j.dyepig.2025.112820","DOIUrl":"10.1016/j.dyepig.2025.112820","url":null,"abstract":"<div><div>In the active layer of all-small-molecule organic solar cells, the small molecule donors (SMDs) should ideally assume a face-on orientation in keeping with the non-fullerene acceptors. This well-matched interfacial molecular orientation in blends ensures heavy overlapping in the π-orbitals of donors and acceptors to further improve the manifestation of excitons and charges. However, there have been few studies on the effect of different end groups in the A-π-D-π-A-type structure. To explore this issue, we designed two f-DTBDT-based A-π-D-π-A-type-type SMDs, DR-3T and DE-3T, ending with different electron-withdrawing groups (rhodanine and 2-ethylhexyl cyanoacetate, respectively). To match the energy levels and absorption band of these two SMDs, Y6-BO was chosen as the acceptor in the blends. For DR-3T-based devices, space charge limited current measurement confirmed a low mobility in the vertical direction, which goes against restraining non-radiative recombination and energy loss, resulting in a low <em>V</em>_oc of 0.64 V and PCE of 5.20 % for the device. Compared to DR-3T, the film based on DE-3T showed the desired face-on orientation, which facilitated charge transport. As a result, the corresponding device delivered higher performance with PCE = 8.78 %, <em>V</em>_oc = 0.77 V, <em>J</em>_sc = 17.68 mA cm⁻², and <em>FF</em> = 64.50 %. This result demonstrates that the end group can significantly affect the orientation of the molecular backbone, further modulating the efficiency of organic solar cell devices.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112820"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Human peripheral blood mononuclear cells targeted multidimensional switch for selective detection of HSO3− anion” [Dyes Pigments 198 (2022) 109966 1–10]","authors":"Sangita Das ,&nbsp;Partha Pratim Das ,&nbsp;James W. Walton ,&nbsp;Kakali Ghoshal ,&nbsp;Lakshman Patra ,&nbsp;Maitree Bhattacharyya ,&nbsp;Tapan Kumar Mondal ,&nbsp;Sabu Thomas","doi":"10.1016/j.dyepig.2025.112803","DOIUrl":"10.1016/j.dyepig.2025.112803","url":null,"abstract":"","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112803"},"PeriodicalIF":4.1,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New sandwich-structured blue thermally activated delayed fluorescence molecules with through-space charge transfer effect","authors":"Ziyu Lan ,&nbsp;Xiaobin Dong ,&nbsp;Ruiqi Sun ,&nbsp;Zuguo Yang ,&nbsp;Ben Zhong Tang ,&nbsp;Zujin Zhao","doi":"10.1016/j.dyepig.2025.112804","DOIUrl":"10.1016/j.dyepig.2025.112804","url":null,"abstract":"<div><div>Efficient blue thermally activated delayed fluorescence (TADF) materials are highly desired for the development of organic light-emitting diodes (OLEDs) but remain challenge. This study reports the synthesis and characterization of two new blue TADF molecules (2CzTXT and 2PCzTXT) with a sandwich structure consisting of thioxanthone (TXT) donor, 9-phenylcarbazole (PCz) donors, and 3,6-di-<em>tert</em>-butyl-9H-carbazol (2<em>t</em>Cz) bridge. The crystal configurations, thermal stability, electrochemical behaviors, electronic structures and photophysical properties are systematically studied by experimental measurements and theoretical calculations. Both molecules exhibit prominent through-space charge transfer (TSCT) feature and strong TADF in doped films with good quantum yields. The OLEDs using both molecules as emitters provide blue electroluminescence (EL) peaking at 470 and 490 nm with good external quantum efficiencies of 11.03 % and 8.58 %, respectively. The results acquired in this study should be conducive to the development of efficient blue TADF emitters based on TSCT effect.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112804"},"PeriodicalIF":4.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in dual-channel colorimetric and fluorometric probes for selective Sn2+ detection: Bioimaging and environmental perspectives","authors":"Amal Adnan Ashour ,&nbsp;Abeer Alubaidi ,&nbsp;Alaa Shafie","doi":"10.1016/j.dyepig.2025.112800","DOIUrl":"10.1016/j.dyepig.2025.112800","url":null,"abstract":"<div><div>The detection of Sn²⁺ ions is critical in both biomedical and environmental contexts due to their dual role as essential elements and potential toxins. Recent advancements in dual-channel colorimetric and fluorometric probes have revolutionized Sn²⁺ detection, offering unprecedented sensitivity, selectivity, and real-time monitoring capabilities. These probes integrate colorimetric and fluorometric mechanisms, providing dual verification and enhanced reliability. Innovations in molecular design, including organic compounds and nanomaterials, have expanded their utility in diverse environments. In bioimaging, these probes enable precise intracellular localization and dynamic Sn²⁺ tracking, unlocking new insights into cellular processes. Environmentally, they empower rapid and portable monitoring of Sn²⁺ contamination in water, soil, and industrial effluents, ensuring ecosystem safety. This review aims to provide a comprehensive overview of recent advancements in the development of dual-channel colorimetric and fluorometric probes for the selective detection of Sn²⁺ ions. The focus is on summarizing innovative design strategies and sensing mechanisms that enhance probe selectivity and sensitivity. Additionally, the review highlights the practical applications of these probes in bioimaging and environmental monitoring, addressing current challenges and potential future directions in the field. By consolidating key findings, the review seeks to guide researchers in the development of next-generation probes with improved performance and multifunctionality.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112800"},"PeriodicalIF":4.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tetraphenylethylene-based aggregation-induced emission luminogens with mechanofluorochromism and Fe2+/Fe3+ detection applications","authors":"Lingling Li ,&nbsp;Zewen Zhai ,&nbsp;Wenjing Zhang,&nbsp;Shuai Lu,&nbsp;Bing Song,&nbsp;Xue-Mei Zhao,&nbsp;Xinju Zhu,&nbsp;Xin-Qi Hao","doi":"10.1016/j.dyepig.2025.112805","DOIUrl":"10.1016/j.dyepig.2025.112805","url":null,"abstract":"<div><div>Five novel tetraphenylethylene-based donor-acceptor (D-A) fluorescent luminogens <strong>TPE-1</strong>-<strong>5</strong> were designed and synthesized. All five molecules exhibit solvatochromism and aggregation-induced emission (AIE) behavior with bright tunable emission colors in the solid state. Importantly, <strong>TPE-1</strong> and <strong>TPE-2</strong> display red-shifted mechanofluorochromic (MFC) properties under external force, which can be converted to the original state upon fumigation of dichloromethane. According to powder X-ray diffraction (PXRD) analysis, the MFC phenomena are related with crystalline-to-crystalline phase transition. Their emission behavior were further investigated by density functional theory (DFT) calculations and singly crystal X-ray analysis (XRD), which clearly demonstrates that <strong>TPE-1</strong>-<strong>5</strong> adopt highly twisted conformational structures with intrinsic intramolecular charge transfer (ICT) properties. Moreover, <strong>TPE-5</strong> demonstrates fluorescence sensing capability for both Fe²⁺ and Fe³⁺ with high sensitivity and anti-interference performance.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112805"},"PeriodicalIF":4.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The preparation and characterization of a novel ADP sensor based on dipicolylamine-copper(II)/phenylboronic-acid modified cyclodextrin inclusion complex","authors":"Masaki Ishida ,&nbsp;Shoji Fujiwara ,&nbsp;Kyohei Tsutsumi ,&nbsp;Shohei Minagawa ,&nbsp;Yuji Tsuchido ,&nbsp;Takeshi Hashimoto ,&nbsp;Takashi Hayashita","doi":"10.1016/j.dyepig.2025.112798","DOIUrl":"10.1016/j.dyepig.2025.112798","url":null,"abstract":"<div><div>We designed a supramolecular complex consisting of a dipicolylamine copper complex with an azobenzene group and phenylboronic acid-modified cyclodextrin for adenosine 5′-diphosphate (ADP) recognition in water. Evaluating its phosphate recognition ability through UV–vis and induced circular dichroism spectroscopy demonstrated high selectivity and a large binding constant for ADP in water. Further investigation into the recognition mechanism suggested that the high sensitivity is due to the formation of a supramolecular complex through a combination of four weak interactions.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112798"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing the field of colored and emissive materials: 6th IC3EM, Unveils the future and Evolution","authors":"Carlos Lodeiro ,&nbsp;José Luis Capelo-Martínez","doi":"10.1016/j.dyepig.2025.112794","DOIUrl":"10.1016/j.dyepig.2025.112794","url":null,"abstract":"","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112794"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143845098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}