Dyes and Pigments最新文献_第8页

Study on a novel dye with multi-stimulus response based on spiropyran 基于螺吡喃的新型多刺激反应染料研究

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-21 DOI: 10.1016/j.dyepig.2025.112775

Chao Xu , Zihang Qiao , Jiarong Niu , Wenyu Wang , Jin Xin

{"title":"Study on a novel dye with multi-stimulus response based on spiropyran","authors":"Chao Xu , Zihang Qiao , Jiarong Niu , Wenyu Wang , Jin Xin","doi":"10.1016/j.dyepig.2025.112775","DOIUrl":"10.1016/j.dyepig.2025.112775","url":null,"abstract":"<div><div>Stimuli-responsive molecules have attracted attention for a wide range of applications in many functional materials. Spiropyrans, as typical stimuli-responsive molecules, require a certain degree of conformational freedom to guarantee reversible isomerization, which is difficult to be ensured in the solid state. Therefore, in this paper, bisphenol fluorene with orthorhombic structure is introduced on the nitrogen atom of spiropyran through a simple esterification reaction, and obtain a novel molecule, <strong>SPB</strong>, which has light, thermal and acid/base responsive ability. <strong>SPB</strong> not only maintains excellent responsive properties to light, thermal, and acid/base stimuli in solution state, it but also displays perfect response performance to these stimuli in the powder state and in poly(methyl methacrylate) film. And there are high sensitivity, high color contrast and high emission contrast between open- and close-ring structure. In addition, <strong>SPB</strong> has more excellent reversibility and thermal stability, and it remain responsive ability after 40 reversible cycles. <strong>SPB</strong> can be used for UV printing and anti-counterfeiting materials. With this simple and rational structural design strategy, more liquidsolid stimulus responsive materials could be produced.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112775"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807889","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}

引用次数: 0

In vitro evaluation of color stability of three maxillofacial silicone elastomers: Effects of soap-based disinfection 体外评估三种颌面部硅树脂弹性体的颜色稳定性：皂基消毒的影响

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-21 DOI: 10.1016/j.dyepig.2025.112777

Bilal Lukman Alkrayem , Fan Zhang , Mariko Hattori , Yuka I. Sumita , Noriyuki Wakabayashi

{"title":"In vitro evaluation of color stability of three maxillofacial silicone elastomers: Effects of soap-based disinfection","authors":"Bilal Lukman Alkrayem , Fan Zhang , Mariko Hattori , Yuka I. Sumita , Noriyuki Wakabayashi","doi":"10.1016/j.dyepig.2025.112777","DOIUrl":"10.1016/j.dyepig.2025.112777","url":null,"abstract":"<div><div>The preservation of color stability in maxillofacial silicone prostheses is essential for their aesthetic appeal and functional durability. This research investigated the impact of two soap-based disinfectants and tap water on the color stability of three silicone elastomers: A-2186-F, VST-50, and GC Silfy, over a simulated five-year clinical service duration. The samples were immersed daily for two weeks in tap water, Muse hand disinfectant soap, and Hadakara body soap, simulating approximately five years of clinical use. Color stability was evaluated at baseline (T<sub>0</sub>), after 7 days (T<sub>1</sub>), and after 14 days (T<sub>2</sub>). The results revealed that the disinfectants exerted minimal influence on the color stability of the silicones, with GC Silfy and VST-50 exhibiting greater resistance to discoloration than A-2186-F. Particularly, exposure to Muse hand disinfectant soap led to the most significant color alteration in A-2186-F. Nevertheless, the changes observed across all materials remained below the threshold of perceptibility (ΔE∗ = 1.1), indicating that they are not visually noticeable. These findings underscore the significance of selecting appropriate materials and ensuring disinfectant compatibility to preserve the aesthetic quality of maxillofacial prostheses. By refining cleaning protocols, it may be feasible to improve the longevity and clinical efficacy of these prosthetic materials.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112777"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734557","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}

引用次数: 0

Synthesis and characterization of new push-pull azobenzene. Cis → Trans isomerization kinetic study 新型推挽式偶氮苯的合成与表征。顺→反异构化动力学研究

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-19 DOI: 10.1016/j.dyepig.2025.112774

Gaspard Bichot , Xavier Sallenave , Rémi Métivier , Sébastien Péralta

引用次数: 0

Biphenyl core boosts the photovoltaic performance of ether-bonded perylene diimides based nonfullerene acceptors 联苯核提高了基于醚键苝二酰亚胺的非富勒烯受体的光伏性能

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-18 DOI: 10.1016/j.dyepig.2025.112771

Yanjie Sun , Yinuo Wang , Fengbo Sun , Ruize Zhou , Xiang Gao , Qi Zhang , Jianhong Gao , Zhitian Liu

引用次数: 0

Highly efficient multi-resonant thermally activated delayed fluorescence emitter based on carbonyl-nitrogen derivative 基于羰基-氮衍生物的高效多共振热激活延迟荧光发射器

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-17 DOI: 10.1016/j.dyepig.2025.112770

Shangru Li , Xiao-Long Liu , Jia-Xiong Chen , Congcong Kai , Zhichao Mao , Longjiang Xing , Yong-Zhi Chen , Yao-Zu Su , Weiqiang Li , Wen-Cheng Chen , Yanping Huo

{"title":"Highly efficient multi-resonant thermally activated delayed fluorescence emitter based on carbonyl-nitrogen derivative","authors":"Shangru Li , Xiao-Long Liu , Jia-Xiong Chen , Congcong Kai , Zhichao Mao , Longjiang Xing , Yong-Zhi Chen , Yao-Zu Su , Weiqiang Li , Wen-Cheng Chen , Yanping Huo","doi":"10.1016/j.dyepig.2025.112770","DOIUrl":"10.1016/j.dyepig.2025.112770","url":null,"abstract":"<div><div>The development of multi-resonant thermally activated delayed fluorescence (MR-TADF) materials to achieve a small full width at half maximum (FWHM) and high external quantum efficiency (EQE) in highly doped organic light-emitting diodes (OLEDs) is highly desirable. In this study, we designed a novel MR-TADF emitter, 3,11-di-<em>tert</em>-butyl-7-(10-phenyl-10<em>H</em>-spiro[acridine-9,9′-fluoren]-3′-yl)quinolino[3, 2, 1 -de]acridine-5,9-dione (tBuCON-ST), by incorporating a spirofluorene triphenylamine (ST) group into the MR-TADF framework of tBuCON. The ST group introduces steric hindrance, effectively suppressing exciton quenching. Consequently, tBuCON-ST demonstrated high exciton utilization at elevated doping ratios while maintaining a narrow FWHM of 34 nm. Moreover, tBuCON-ST-based OLEDs achieved high EQEs exceeding 19.1 % at doping concentrations of 10 wt%, significantly outperforming tBuCON-based OLEDs at the same doping levels.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112770"},"PeriodicalIF":4.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679019","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}

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A tricolor photochromic hybrid tetra-arylethene with > 99 % E-Z isomerization and photocyclization/cycloreversion 一种三色光致变色杂化四芳烯，具有99%的E-Z异构化和光环化/环还原

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-17 DOI: 10.1016/j.dyepig.2025.112766

Wei Lei, Siyuan Chen, Yan Zeng, Xuewen Wang, Qianfu Luo

引用次数: 0

A quinolinium-based colorimetric and NIR fluorescent dual-channel sensing platform for specific detection of bisulfite in food, traditional Chinese medicine and living cells 基于喹啉啉的比色法和近红外荧光双通道传感平台，用于食品、中药和活细胞中亚硫酸盐的特异性检测

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-17 DOI: 10.1016/j.dyepig.2025.112767

Qiutong Chen , Jiaxing Li , Yiting Wang , Mingyu Tian , Tianyu Liang , Keli Zhong , Xiaomei Yan , Lijun Tang

{"title":"A quinolinium-based colorimetric and NIR fluorescent dual-channel sensing platform for specific detection of bisulfite in food, traditional Chinese medicine and living cells","authors":"Qiutong Chen , Jiaxing Li , Yiting Wang , Mingyu Tian , Tianyu Liang , Keli Zhong , Xiaomei Yan , Lijun Tang","doi":"10.1016/j.dyepig.2025.112767","DOIUrl":"10.1016/j.dyepig.2025.112767","url":null,"abstract":"<div><div>Sulfur dioxide (SO<sub>2</sub>) and its derivatives are commonly used in food processing, but excessive exposure to SO<sub>2</sub> and its derivatives can pose serious health risks. In this study, we present a near-infrared “turn-on” probe, <strong>QSB-M</strong>, for the highly selective and sensitive detection of HSO<sub>3</sub><sup>−</sup>. The recognition of HSO<sub>3</sub><sup>−</sup> by the probe results in a marked color change and a significant enhancement in near-infrared fluorescence, offering high sensitivity (limit of detection = 95.12 nM), rapid response, and minimal interference from environmental background signals. The recognition mechanism involves the specific addition of HSO<sub>3</sub><sup>−</sup> to the 4-position of the quinolinium moiety, triggering an intramolecular charge transfer effect that leads to both colorimetric and fluorescence dual responses. <strong>QSB-M</strong> was also successfully applied for <em>in situ</em> visualization of HSO<sub>3</sub><sup>−</sup> in various foods and traditional Chinese medicines (TCM), with recoveries ranging from 90 % to 115 %. Additionally, test strips and a smartphone-assisted sensing platform were developed, enabling direct detection of HSO<sub>3</sub><sup>−</sup> levels in foods and TCM without the need for complex instrumentation. Importantly, <strong>QSB-M</strong> exhibits low cytotoxicity, good mitochondrial-targeting ability, and has been successfully used for the <em>in situ</em> detection of both endogenous and exogenous HSO<sub>3</sub><sup>−</sup> in live MCF-7 cells.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112767"},"PeriodicalIF":4.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679020","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}

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When the past meets the present: New insights into the synthesis and photoelectrochemical stability of mosaic gold 当过去与现在相遇：对马赛克金的合成及其光电化学稳定性的新认识

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-17 DOI: 10.1016/j.dyepig.2025.112772

Anna Kusior , Kinga Michalec , Marta Radecka , Victoria Beltran , Karolien De Wael

{"title":"When the past meets the present: New insights into the synthesis and photoelectrochemical stability of mosaic gold","authors":"Anna Kusior , Kinga Michalec , Marta Radecka , Victoria Beltran , Karolien De Wael","doi":"10.1016/j.dyepig.2025.112772","DOIUrl":"10.1016/j.dyepig.2025.112772","url":null,"abstract":"<div><div>Tin sulfides are widely used in various applications, such as lithium-ion batteries, photodetectors, photocatalysts, and photovoltaic cells. SnS<sub>2</sub> (mosaic gold) is mainly known for its stability and effectiveness as a reductive photocatalyst. However, it is vulnerable to corrosion from light exposure and environmental factors, but the mechanism behind these reactions are not well understood. In this study, SnS<sub>2</sub> synthesized by three methods, salt melting, hydrothermal synthesis, and solid-state reaction, were investigated, and their morphological and phase composition were studied. The stability of the materials under different light sources and environmental conditions was analyzed by electrochemical measurements, scanning electron microscopy (SEM), X-ray diffraction (XRD), spectroscopy and Raman imaging. The results demonstrate that the photostability of SnS<sub>2</sub> pigments is influenced by their composition and morphology, with non-stoichiometric and flower-like structures exhibiting enhanced resistance. This research contributes to understanding the pigment's stability. Raman spectroscopy spot analysis revealed the presence of a multiphase composition, suggesting local changes in structure. However, the overall photostability is guaranteed by the geometry and purity of the mosaic gold particles.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112772"},"PeriodicalIF":4.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678403","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}

引用次数: 0

Investigation of molecular rotation's influence on twisted ICT states in a series of D-A-A1 organic dyes 分子旋转对一系列D-A-A1有机染料中扭曲ICT态影响的研究

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-15 DOI: 10.1016/j.dyepig.2025.112761

Vladislav M. Korshunov , Timofey N. Chmovzh , Ivan V. Shlykov , Mikhail E. Minyaev , Ilya V. Taydakov , Oleg A. Rakitin

{"title":"Investigation of molecular rotation's influence on twisted ICT states in a series of D-A-A1 organic dyes","authors":"Vladislav M. Korshunov , Timofey N. Chmovzh , Ivan V. Shlykov , Mikhail E. Minyaev , Ilya V. Taydakov , Oleg A. Rakitin","doi":"10.1016/j.dyepig.2025.112761","DOIUrl":"10.1016/j.dyepig.2025.112761","url":null,"abstract":"<div><div>The Twisted Intramolecular Charge Transfer (TICT) phenomenon can, in some cases, lead to the formation of highly luminescent molecules. Such emitters require donor and acceptor units to be rotationally displaced in the ground state. However, the impact of molecular rotation in the excited state on the photophysical properties of compounds remains insufficiently understood. To bridge this gap, we synthesized and studied a series of donor-acceptor-acceptor (D-A-A<sup>1</sup>) organic dyes incorporating various chalcogenadiazole acceptors (A) and a cyanoacrylic acid acceptor (A<sup>1</sup>). Using spectroscopic analysis and TD-DFT calculations, we examined changes in electronic and geometric structures induced by subtle modifications in the acceptor units. Our findings reveal that compounds featuring an additional nitrogen atom in the ortho-position adopt a planar geometry in the first excited singlet state, leading to a blue shift in the emission spectrum while maintaining a high luminescence quantum yield of up to 63 % in cyclohexane. The results demonstrate that a planar excited-state geometry enhances ICT emission efficiency compared to a twisted configuration. Additionally, we identified a distinct solvatochromic behavior in the studied dyes. These insights contribute to a deeper understanding of the TICT mechanism and provide a new strategy for designing highly luminescent organic dyes.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112761"},"PeriodicalIF":4.1,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679017","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}

引用次数: 0

Effect of proton acceptors on the excited-state intermolecular proton transfer reaction of fluoranthene–urea compounds 质子受体对氟蒽-尿素化合物激发态质子转移反应的影响

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-15 DOI: 10.1016/j.dyepig.2025.112763

Tatsuki Hoshino, Mahiro Okada, Yoshinobu Nishimura

{"title":"Effect of proton acceptors on the excited-state intermolecular proton transfer reaction of fluoranthene–urea compounds","authors":"Tatsuki Hoshino, Mahiro Okada, Yoshinobu Nishimura","doi":"10.1016/j.dyepig.2025.112763","DOIUrl":"10.1016/j.dyepig.2025.112763","url":null,"abstract":"<div><div>To investigate the effect of proton acceptors on the excited-state intermolecular proton transfer (ESPT) reaction of fluoranthene–urea compounds, three fluoranthene–urea compounds with different substituents were prepared. Photoexcitation of complexes composed of these compounds and proton acceptors in the ground state produced a normal form (N∗), and subsequent ESPT generated a tautomer form (T∗). Spectroscopic measurements of these complexes in the presence of tetrabutylammonium acetate (TBAAc) as a source of CH<sub>3</sub>COO<sup>−</sup> and tetrabutylammonium phosphate (TBAP) as a H<sub>2</sub>PO<sub>4</sub><sup>−</sup> source were performed. <sup>1</sup>H NMR spectra showed that the 1-(fluoranthene-3-yl)-3-phenylurea <strong>(3FU</strong>) derivatives formed complexes with CH<sub>3</sub>COO<sup>−</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> in the ground state through hydrogen bonding interactions. Time-resolved fluorescence spectra showed that the maximum fluorescence wavelength of the T∗ species containing CH<sub>3</sub>COO<sup>−</sup> did not change with time, whereas that of the T∗ species containing H<sub>2</sub>PO<sub>4</sub><sup>−</sup> shifted to a longer wavelength. These results indicated that in the excited state, the structure of T∗ with H<sub>2</sub>PO<sub>4</sub><sup>−</sup> might be different from that of T∗ with CH<sub>3</sub>COO<sup>−</sup>. Furthermore, the distribution of electron density of T∗ might be delocalized from the fluorescent moiety to the proton acceptor rather than being localized on the fluorescent moiety.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112763"},"PeriodicalIF":4.1,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644256","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}

引用次数: 0