{"title":"Thermosensitive hydrogel as an injectable aggregation-induced emission photosensitizer delivery scaffold for lung cancer therapeutics with long-acting photodynamic therapy","authors":"Yawen Zheng , Qilong Wu , Qunyan Zhu , Aocheng Ren , Lisha Guo , Shuai Huang , Zu-Sheng Huang , Qingyun Li , Yuping Li , Chengshui Chen","doi":"10.1016/j.dyepig.2025.112966","DOIUrl":"10.1016/j.dyepig.2025.112966","url":null,"abstract":"<div><div>Photodynamic therapy (PDT) has been increasingly utilized in the treatment of lung cancer due to its convenience and minimal invasiveness. However, the low therapeutic effect and bioavailability of photosensitizers pose significant challenges. Direct in-situ injection of photosensitizers often results in rapid loss from the tumor site and short retention times, necessitating multiple administrations during the treatment process, which can diminish the overall therapeutic efficiency for solid tumors. To address these limitations and enhance clinical outcomes, we developed an in-situ injectable thermosensitive hydrogel (P-TTPy) loaded with aggregation-induced emission (AIE) photosensitizer named TTPy for long-acting photodynamic therapy of lung cancer. In vitro experiments demonstrated the selective cytotoxicity of reactive oxygen species (ROS) generated by P-TTPy under white light excitation against lung cancer cells. The in vivo experiment involving subcutaneous lung cancer tumors in nude mice demonstrated that the in situ injection of thermosensitive hydrogel significantly extended the release duration of TTPy, resulting in superior growth inhibition of lung cancer tissue compared to the administration of TTPy alone. In summary, this strategy offered a new approach for enhancing photodynamic therapy for lung cancer.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112966"},"PeriodicalIF":4.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307025","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":"High-performance OLED host materials: Photophysical properties and device optimization of carbazole-benzocarbazole derivatives","authors":"Daiva Tavgeniene , Dovydas Blazevicius , Eigirdas Skuodis , Saulius Grigalevicius , Chi-Hao Huang , Yu-Hsuan Chen , Chih-Hao Chang","doi":"10.1016/j.dyepig.2025.112965","DOIUrl":"10.1016/j.dyepig.2025.112965","url":null,"abstract":"<div><div>Organic light-emitting diodes (OLEDs) have been at the forefront of advancements in personal electronics and lighting applications in recent years. To further enhance device efficiency, the development of new host materials for phosphorescent and TADF emitters is essential. Motivated by this need, we designed and synthesized carbazole-benzo [<em>a</em>]carbazole-based compounds with controlled alkyl substitution as hole-transporting hosts, incorporating ethyl (<strong>eCzBCz</strong>) or butyl (<strong>bCzBCz</strong>) chains to improve film-forming properties for yellow TADF and red phosphorescent OLEDs. These new materials exhibited high thermal stability (T<sub>d</sub> ≈ 350 °C) and the ability to form amorphous layers, with <strong>eCzBCz</strong> demonstrating a particularly high T<sub>g</sub> level of 107 °C. Photophysical analyses reveal distinct fluorescence and phosphorescence spectra, with respective singlet (triplet) energy gaps of 3.47 eV (2.53 eV) and 3.47 eV (2.50 eV). Due to their strong hole transport but weak electron transport capabilities, a co-host system incorporating CN-T2T was introduced to enhance negative charge transport. OLED devices using these materials demonstrated improved charge balance, higher efficiency, and reduced efficiency roll-off. Devices with blended hosts exhibited superior external quantum efficiency (EQE) exceeding 20 % and stable color emissions. Additionally, the lifetime tests confirmed the higher stability of <strong>eCzBCz</strong>-based devices under high electric fields, highlighting their potential for high-performance OLED applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112965"},"PeriodicalIF":4.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307027","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}
Dyes and PigmentsPub Date : 2025-06-14DOI: 10.1016/j.dyepig.2025.112955
Yunfeng Xu , Chao Meng , Peiqing Cong , Mengzhen Du , Jimin Du , Shenghuang Lin , Ailing Tang , Erjun Zhou
{"title":"The effect of π-bridge in D-π-A type polymer donor on the photovoltaic performance of organic solar cells with different types of electron acceptors","authors":"Yunfeng Xu , Chao Meng , Peiqing Cong , Mengzhen Du , Jimin Du , Shenghuang Lin , Ailing Tang , Erjun Zhou","doi":"10.1016/j.dyepig.2025.112955","DOIUrl":"10.1016/j.dyepig.2025.112955","url":null,"abstract":"<div><div>Changing π-bridge in D-π-A type polymer from thiophene to thieno[3,2-<em>b</em>]thiophene (TT) is an effective molecular engineering to modulate the optoelectronic properties of polymers. However, for two different types of electron acceptors, small molecule and polymer, the specific effects of π-bridge engineering have not yet been studied. Herein, two benzotriazole (BTA)-based donor polymers J52-F and PE3, are used to investigate the effect in the varying electron acceptors: small molecule acceptor Y6 and the polymer acceptor N2200. PE3 shows superior molecular compatibility with Y6 rather than N2200, while in the J52 system, it's the opposite. As a result, J52-F: N2200 and PE3: Y6 blends give rise to interpenetrating network morphology with a better domain size than their counterparts, enhancing charge transport and suppressing charge recombination. Compared with J52-F: N2200, PE3:N2200 exhibits increased radiative recombination loss due to the poor energy disorder, producing a similar open-circuit voltage (<em>V</em><sub>OC</sub>) with J52:N2200. In the Y6 system, PE3 produces lower radiative and non-radiative energy loss than J52-F, leading to a higher <em>V</em><sub>OC</sub>. Finally, the PE3:Y6 achieves the highest PCE of 16.63 %, obviously higher than the J52-F: Y6 (PCE = 12.75 %). Differently, in the N2200-based all-polymer solar cells, J52-F exhibits a better PCE of 8.99 % than PE3 (PCE = 3.75 %). These data demonstrate that introducing TT bridge is a prospective way of constructing high-efficiency Y6-based photovoltaic devices due to the superior molecular compatibility.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112955"},"PeriodicalIF":4.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144299054","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}
Dyes and PigmentsPub Date : 2025-06-12DOI: 10.1016/j.dyepig.2025.112963
Lu-Yu Li , Jia-Xuan Yu , Hao-Wen Cao , Ze-Kai Li , Xu-Bo Fan , Jing Shu , Xiao-Feng Yu , Wen-Jing Yi , Ming-Qi Wang
{"title":"Donor-acceptor framework appended with rotators as environment-insensitive probes for the detection of G4 DNA","authors":"Lu-Yu Li , Jia-Xuan Yu , Hao-Wen Cao , Ze-Kai Li , Xu-Bo Fan , Jing Shu , Xiao-Feng Yu , Wen-Jing Yi , Ming-Qi Wang","doi":"10.1016/j.dyepig.2025.112963","DOIUrl":"10.1016/j.dyepig.2025.112963","url":null,"abstract":"<div><div>Donor-acceptor type dyes are commonly used frameworks for constructing G-Quadruplex (G4) DNA fluorescent probes. However, such dyes frequently exhibit environment-sensitive characteristics and are prone to generate non-specific signals due to microenvironmental changes like polarity and viscosity, which hinders their application in high-fidelity G4 detection within complex biological systems. Therefore, there is an urgent need to optimize these dyes and mitigate interference from environmental factors. Herein, we present a rational strategy for constructing environment-insensitive dyes through incorporation of tailored rotor moieties to enhance nonradiative decay, thereby sustaining a “<em>fluorescence-off</em>” state throughout complex physiological environments prior to reaching G4 targets. In the unique strategy, three novel carbazole-pyridinium architectures incorporating different rotor substituents (<em>N</em>, <em>N</em>-dimethylaniline, triphenylamine, <em>N</em>-phenylcarbazole) were synthesized. Notably, the architectural framework integrating the “low-barrier rotation” of <em>N</em>, <em>N</em>-dimethylaniline rotor (named <strong>ZXS</strong>) exhibited desirable initial “<em>fluorescence off</em>” state across a wide range of solvent polarities and viscosities. These features not only contribute to an enhanced signal-to-noise ratio but also effectively prevent the generation of false-positive signals caused by environmental variations. Upon binding with G4s, dye <strong>ZXS</strong> can be fluorescence elicited by its specific interaction with c-MYC G-Quadruplex DNA (∼225-fold enhancement). Especially, dye <strong>ZXS</strong> shows superior selectivity for c-MYC, exhibiting much weaker fluorescence response in the presence of other G4 and non-G4 DNA structures. Furthermore, it serves as a potential tool for the detection of G4s in the nucleus.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112963"},"PeriodicalIF":4.1,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144299055","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}
Dyes and PigmentsPub Date : 2025-06-11DOI: 10.1016/j.dyepig.2025.112958
Zhiyu Chen , Xiaoling Ren , Chenhao Wang , Jiahui Zhang , Kai Wang , Wulin You
{"title":"A novel fluorescent probe visualization and identification of sulfite in acute liver injury and knee osteoarthritis","authors":"Zhiyu Chen , Xiaoling Ren , Chenhao Wang , Jiahui Zhang , Kai Wang , Wulin You","doi":"10.1016/j.dyepig.2025.112958","DOIUrl":"10.1016/j.dyepig.2025.112958","url":null,"abstract":"<div><div>This study presents a novel near-infrared fluorescent probe (<strong>HD</strong>) specifically engineered for real-time tracking of sulfite (SO<sub>3</sub><sup>2−</sup>) dynamics. Significantly, this work constitutes the first documented application of an SO<sub>3</sub><sup>2-</sup>-activated molecular tool in acute liver injury (ALI) and knee osteoarthritis (KOA) models. The probe demonstrates a distinct emission response at 720 nm upon 670 nm excitation following interaction with SO<sub>3</sub><sup>2−</sup>, maintaining exceptional selectivity across broad pH ranges. Levulinate was strategically incorporated as the recognition moiety to ensure precise and reproducible detection. Comparative analysis reveals <strong>HD</strong>'s superior optical performance relative to existing sulfite probes, characterized by an exceptional response magnitude (∼300-fold enhancement) and high sensitivity. The probe successfully quantified intracellular SO<sub>3</sub><sup>2−</sup> fluctuations across diverse cell types. Notably, <strong>HD</strong> achieved in situ visualization of SO<sub>3</sub><sup>2−</sup> variations in both CCl<sub>4</sub> and APAP-induced ALI models. Through advanced <em>in vivo</em> and depth-penetration fluorescence imaging, the probe dynamically mapped SO<sub>3</sub><sup>2−</sup> concentration gradients during pathological progression from hepatic injury to carcinogenesis, concurrently monitoring therapeutic responses. In addition, <strong>HD</strong> could monitor the level of SO<sub>3</sub><sup>2−</sup> in KOA patients. This technological advancement enables precise spatial-temporal detection of SO<sub>3</sub><sup>2−</sup> in hepatotoxic and KOA environments, offering a robust platform for preclinical diagnostics and translational medical research.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112958"},"PeriodicalIF":4.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144290955","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}
Dyes and PigmentsPub Date : 2025-06-11DOI: 10.1016/j.dyepig.2025.112957
Chunyue Shi , Geqi Chen , Min Ye , Ziqi Xia , Yanna Ye , Aparna Kushwaha , Jun Wang , Abhinav Kumar , Ying Pan
{"title":"Advances in AI-driven applications of metal-organic frameworks for the diagnosis and treatment of pancreatic cancer","authors":"Chunyue Shi , Geqi Chen , Min Ye , Ziqi Xia , Yanna Ye , Aparna Kushwaha , Jun Wang , Abhinav Kumar , Ying Pan","doi":"10.1016/j.dyepig.2025.112957","DOIUrl":"10.1016/j.dyepig.2025.112957","url":null,"abstract":"<div><div>Pancreatic cancer is known as the “king of cancers” due to pose early diagnostic challenges, high aggressiveness, and drug-resistance. Hence, with its rising incidence, innovative approaches are desirable for its diagnosis and treatment. Metal-organic frameworks (MOFs), characterized by their high specific surface area, tunable pore structure, biocompatibility, and multifunctional modification potential, are not only widely applied across various fields but have also demonstrated unique advantages in the diagnosis and treatment of pancreatic cancer in recent years. This review provides an overview of recent progress in the use of MOFs for the diagnosis and treatment of pancreatic cancer, as well as advancements in developing increasingly precise diagnostic and therapeutic strategies with the aid of artificial intelligence (AI). In diagnostics, the review discusses the isolation and detection of pancreatic cancer markers, followed by a focus on MOF-based methods such as MRI, biochemical sensors, and beyond. In terms of therapy, MOF-based treatments for pancreatic cancer are categorized into monotherapies (including acoustic kinetic therapy, photothermal therapy, and chemodynamic therapy), combination therapies, immunotherapies, and other approaches (such as iron-induced apoptosis and drug-delivery systems), highlighting the advancements enabled by MOFs in various treatment modalities. Finally, the integration of AI with MOFs introduces a new paradigm in the diagnosis and treatment of pancreatic cancer. In summary, metal-organic frameworks hold great promise for improving the accuracy and effectiveness of pancreatic cancer diagnosis and treatment, especially when combined with AI technologies.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112957"},"PeriodicalIF":4.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313209","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}
Dyes and PigmentsPub Date : 2025-06-11DOI: 10.1016/j.dyepig.2025.112928
Chan-Heon An , Soo-Yeon Eom , Jae-Hwan Lee , Fayong Sun , Jong S. Park , Seung-Won Oh
{"title":"Highly transparent to deep black electrochromic smart windows based on liquid crystals","authors":"Chan-Heon An , Soo-Yeon Eom , Jae-Hwan Lee , Fayong Sun , Jong S. Park , Seung-Won Oh","doi":"10.1016/j.dyepig.2025.112928","DOIUrl":"10.1016/j.dyepig.2025.112928","url":null,"abstract":"<div><div>This study introduces advanced organic electrochromic devices (ECDs) that incorporate liquid crystals (LCs) to achieve tunable light transmittance, enabling seamless transitions between a highly transparent and a deep black state. By integrating LCs with redox-active components, the proposed ECDs exhibit precise electrochromic color modulation upon voltage application. A detailed investigation of chromatic transitions and electro-optical properties reveals fast response times, enhanced stability, and strong potential for smart window and display applications. A comparative analysis with existing technologies, including guest-host LC (GHLC), and polymer network LC (PNLC) systems, highlights the superior performance of the proposed devices in terms of transmittance modulation, privacy control, and energy efficiency. These findings position LC-based ECDs as promising candidates for next-generation smart windows, energy-efficient privacy management, thermal regulation, and high-performance display technologies.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112928"},"PeriodicalIF":4.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279594","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}
Dyes and PigmentsPub Date : 2025-06-11DOI: 10.1016/j.dyepig.2025.112954
Siyuan Zang , Liying Dong , Jia Wang , Shuaiqi Wang , Xizhe Chu , Bofang Shan , Peng Yang , Zhigang Ni , Bin Kan , Qian Zhang
{"title":"Alkoxy side-chain engineering of quinquethiophene-based fully non-fused ring acceptors with near-infrared absorption for efficient organic solar cells","authors":"Siyuan Zang , Liying Dong , Jia Wang , Shuaiqi Wang , Xizhe Chu , Bofang Shan , Peng Yang , Zhigang Ni , Bin Kan , Qian Zhang","doi":"10.1016/j.dyepig.2025.112954","DOIUrl":"10.1016/j.dyepig.2025.112954","url":null,"abstract":"<div><div>Fully non-fused organic semiconductors with ultra-narrow bandgap offer exceptional potential for cost-effective organic photoelectric devices. Here, two quinquethiophene-based fully non-fused acceptors, 5T-OEH and 5T-2OEH, were designed and synthesized by varying the number of the alkoxy chain on the terminal thiophene. The inner alkoxy modified 5T-OEH adopts a more planar backbone and displays a redshifted absorption with an ultra-narrow optical bandgap of 1.29 eV compared to 5T-2OEH. After blending with donor D18, the 5T-OEH blend exhibits a preferential face-on molecular orientation, more compact intermolecular stacking and favorable phase separation. Consequently, organic solar cells (OSCs) based on 5T-OEH afforded a power conversion efficiency (PCE) of 12.64 %, surpassing those based on 5T-2OEH (7.44 %). This study underscores the effectiveness of alkoxy chain engineering in optimizing the performance of non-fused acceptors, providing a promising pathway for advancing low-cost and high-efficiency OSCs toward commercialization.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112954"},"PeriodicalIF":4.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264022","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}
Dyes and PigmentsPub Date : 2025-06-11DOI: 10.1016/j.dyepig.2025.112961
Di Ma , Xiaoming Huang , Guoli Chen , Haijun Niu
{"title":"Progress of the application of electrochromic materials in energy storage","authors":"Di Ma , Xiaoming Huang , Guoli Chen , Haijun Niu","doi":"10.1016/j.dyepig.2025.112961","DOIUrl":"10.1016/j.dyepig.2025.112961","url":null,"abstract":"<div><div>With the huge consumption of mineral resources and rapid increase of population, the application of green energy materials in daily life is becoming more and more focused. New energy storage devices (ESDs) have become the key support for building a clean, low-carbon, safe, efficient energy system due to their high energy density and environmentally friendly properties. On the other hand, electrochromic (EC) materials are gradually becoming a hot spot in the research field of energy-saving devices because of their ability to achieve reversible color change at very low voltage, which can be used in smart window to modulate the temperature in the room. In general, most EC materials (ECMs) have the ability of saving energy in oxidized of reduced state. In this paper, the research progress of ECMs in ESDs is systematically sorted out, covering the application of ECMs in supercapacitors (SCs), ion battery (IB), and self-powered devices. The future research orientation of ECMs in the field of energy storage (ES) has also prospected.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112961"},"PeriodicalIF":4.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279220","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}
Dyes and PigmentsPub Date : 2025-06-11DOI: 10.1016/j.dyepig.2025.112944
Marta Guembe-García, Saúl Vallejos, José Miguel García, Miriam Trigo-López
{"title":"Intrinsically magenta-colored aramids with enhanced mechanical performance","authors":"Marta Guembe-García, Saúl Vallejos, José Miguel García, Miriam Trigo-López","doi":"10.1016/j.dyepig.2025.112944","DOIUrl":"10.1016/j.dyepig.2025.112944","url":null,"abstract":"<div><div>Poly(<em>p</em>-phenylene terephthalamide) (PPTA) and poly(<em>m</em>-phenylene isophthalamide) (MPIA) are highly valued polymers widely used as fibers and textiles, owing to their exceptional mechanical and thermal properties. However, their high crystallinity and dense molecular packing hinder dyeing, limiting their use in applications that require specific coloration. This work presents the design and characterization of intrinsically colored aramids, in which a magenta dye is covalently bonded as a lateral chain to the main backbone of the parent polymers. The resulting materials incorporated 1, 10, 25, and 100 mol% of the structural units containing the dye, and the color hue was proportional to the dye content.</div><div>The results revealed that the introduction of the dye led to a 94 % increase in the Young's modulus, a 35 % increase in the tensile strength, and a 12 % increase in the elongation at break for Ar-25 compared to MPIA. X-ray diffraction analysis revealed the presence of crystalline domains in the synthesized polymers, which would explain the increased mechanical performance of the materials compared to laboratory-synthesized MPIA.</div><div>By incorporating color directly into the polymer backbone, this approach eliminates the need for conventional dyeing of fibers, reducing the environmental impact, while ensuring long-term color stability. Additionally, the magenta color, which is a primary hue, enables the formulation of a broad spectrum of shades. These findings pave the way for advanced aramid-based materials for fiber-related applications, with enhanced mechanical properties and customizable coloration, expanding their potential in textiles, protective gears, and high-performance structural applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112944"},"PeriodicalIF":4.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288751","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}