Dyes and Pigments最新文献_第7页

Multifunctional sulfur-doped carbon dots for tetracycline residue analysis in food and intracellular lysosomal pH tracking 多功能硫掺杂碳点用于食品中四环素残留分析和细胞内溶酶体pH跟踪

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-02 DOI: 10.1016/j.dyepig.2025.113547

Jiahui Cai , Yuwei Du , Huimin Miao , Yingge Cong , Minghui Zan , Ruhong Yan , Li Li , Juan Yue

{"title":"Multifunctional sulfur-doped carbon dots for tetracycline residue analysis in food and intracellular lysosomal pH tracking","authors":"Jiahui Cai , Yuwei Du , Huimin Miao , Yingge Cong , Minghui Zan , Ruhong Yan , Li Li , Juan Yue","doi":"10.1016/j.dyepig.2025.113547","DOIUrl":"10.1016/j.dyepig.2025.113547","url":null,"abstract":"<div><div>The overuse of tetracycline (TC) antibiotics has raised significant environmental and health concerns, while traditional detection methods face challenges in real-time monitoring and intracellular analysis. In this study, sulfur-doped carbon dots (S-CDs) were synthesized through a one-step hydrothermal method, using biotin and <em>o</em>-phenylenediamine as precursors. The resulting S-CDs exhibit three key functional properties: (1) a highly sensitive fluorescent quenching response to TC, with a detection limit of 76.6 nM and a linear range of 0–200 μM, driven by specific molecular interactions (inner filter effect and static quenching); (2) pH-dependent fluorescence signaling (pH 2.0–8.0) attributed to protonation of surface acid-base groups; and (3) selective lysosomal targeting, with a Pearson correlation coefficient of 0.95, confirmed by confocal microscopy in HeLa cells and zebrafish models. The S-CDs demonstrated excellent recoveries (97.07–107.99 %) in real food samples (milk, beef, and pork) and exhibited negligible cytotoxicity. This work effectively integrates environmental pollutant detection with intracellular microenvironment analysis, providing a versatile tool for investigating TC-induced lysosomal dysfunction and advancing food safety monitoring and biomedical imaging.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113547"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939838","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

A thiolated N-heterocyclic modified chromenylium-cyanine-based NIR turn-on fluorescent probe for Hg2+ detection in environment and living cells 一种用于环境和活细胞中Hg2+检测的巯基n-杂环修饰菁铬基近红外开启荧光探针

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-12 DOI: 10.1016/j.dyepig.2026.113560

Hong Chen , Yihan Yang , Pengwen Luo , Xiaoxia Cheng , Bin Hu , Wei Huang

{"title":"A thiolated N-heterocyclic modified chromenylium-cyanine-based NIR turn-on fluorescent probe for Hg2+ detection in environment and living cells","authors":"Hong Chen , Yihan Yang , Pengwen Luo , Xiaoxia Cheng , Bin Hu , Wei Huang","doi":"10.1016/j.dyepig.2026.113560","DOIUrl":"10.1016/j.dyepig.2026.113560","url":null,"abstract":"<div><div>A near-infrared (NIR) fluorescent probe (<strong>CCH</strong>) constructed from a chromenylium-cyanine scaffold was developed by integrating 4-diethylaminosalicylic acid as the structural unit and mercaptoazaheterocyclic compounds as functional modifiers. The probe exhibited high selectivity for Hg<sup>2+</sup> detection in aqueous solutions and environmental samples across a broad pH range (2–10), with a rapid response time, enabling real-time monitoring of Hg<sup>2+</sup> in aquatic environments. Spectral analyses showed a 1:1 binding ratio between <strong>CCH</strong> and Hg<sup>2+</sup>, with the detection limits of 3.20 × 10<sup>−7</sup> M (Ultraviolet–Visible) and 1.22 × 10<sup>−7</sup> M (fluorescence), along with a binding constant of 1.36 × 10<sup>4</sup> M<sup>−1</sup>. Mechanistic studies via mass spectrometry (MS), Fourier transform infrared spectroscopy (FTIR), and density functional theory (DFT) calculations confirmed a photoinduced electron transfer (PET)-based recognition mechanism. Practical applications validated the probe's effectiveness in environmental water analysis, filter paper-based assays, and food sample testing. Moreover, <strong>CCH</strong> exhibited excellent biocompatibility and successfully achieved the fluorescence imaging in cancer cells, underscoring its potential for biological applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113560"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973512","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

Photochromic meta-aromatic polyamide films with flexibility and high transparency by synergistic regulation of ether bonds and side groups 通过醚键和侧基的协同调节，具有柔韧性和高透明度的光致变色间芳聚酰胺薄膜

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-11 DOI: 10.1016/j.dyepig.2026.113566

Xiaoyan Wang , Wenqin Hong , Zheng Zhang , Changhai Xu , Guowei Xiao , Jinmei Du

{"title":"Photochromic meta-aromatic polyamide films with flexibility and high transparency by synergistic regulation of ether bonds and side groups","authors":"Xiaoyan Wang , Wenqin Hong , Zheng Zhang , Changhai Xu , Guowei Xiao , Jinmei Du","doi":"10.1016/j.dyepig.2026.113566","DOIUrl":"10.1016/j.dyepig.2026.113566","url":null,"abstract":"<div><div>In consideration of the excellent mechanical properties and heat resistance of meta-aramid (PMIA), it is a promising candidate to use it to prepare photochromic materials to cope with color response challenges in extreme environments. However, the rigid benzene ring structure and strong hydrogen bonding result in the rigidity of PMIA, which limits their applications. In this study, two monomer units with the same ether bond and different side groups (CH<sub>3</sub> and CF<sub>3</sub>) were introduced into the main chain of PMIA molecules to improve their flexibility. At the same time, 4,4′-bipyridine derivatives (DBDB) which had good compatibility with PMIA were co mixed to prepare two flexible photochromic PMIA (FPMIA and HPMIA). Compared with PMIA, the elastic modulus of FPMIA and HPMIA decreased by 29.09 % and 19.19 %, respectively, and the glass transition temperature were reduced to 262 and 267 °C, which reflected that the synergistic effect of ether bond and side group units made the polymer molecular chain more flexible. In addition, FPMIA and HPMIA had optical transparency of 89.5 % and 89.2 %, respectively, and exhibited reversible photochromic behavior. Meanwhile, the influence of FPMIA and HPMIA aggregate structure on color response was studied. This work provides a new perspective for the development of high-performance processable flexible PMIA, which can help to expand their potential applications in information storage, optics and anti-counterfeiting.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113566"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973511","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

Fluorene-based gold(I)-containing AIEgens with substituents exhibiting diverse electronic effects: hypsochromic mechanofluorochromism, force-induced substantial weakening of fluorescence intensity and its anti-counterfeiting application 具有取代基的含芴金(I)的AIEgens具有多种电子效应：亚变色机械荧光变色，力致荧光强度大幅减弱及其防伪应用

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2025-12-30 DOI: 10.1016/j.dyepig.2025.113544

Shanting Liu , Xi Kang , Bumeng Guo , Zewei Song , Shuang Li , Yinghan Li , Sheng Hua Liu , Zhao Chen

{"title":"Fluorene-based gold(I)-containing AIEgens with substituents exhibiting diverse electronic effects: hypsochromic mechanofluorochromism, force-induced substantial weakening of fluorescence intensity and its anti-counterfeiting application","authors":"Shanting Liu , Xi Kang , Bumeng Guo , Zewei Song , Shuang Li , Yinghan Li , Sheng Hua Liu , Zhao Chen","doi":"10.1016/j.dyepig.2025.113544","DOIUrl":"10.1016/j.dyepig.2025.113544","url":null,"abstract":"<div><div>Due to their distinctive stimulus-responsive properties, materials exhibiting hypsochromic mechanofluorochromism (MFC) or force-induced substantial weakening of fluorescence intensity have demonstrated remarkable application potential in the field of information security. This study designed and synthesized two novel fluorene-based dinuclear gold(I) complexes, <strong>1</strong> and <strong>2</strong>. Both molecules exhibited aggregation-induced emission (AIE) characteristics. Specifically, complex <strong>1</strong> showed reversible hypsochromic MFC. In contrast, complex <strong>2</strong> exhibited force-induced substantial weakening of fluorescence intensity. It is worth noting that <strong>2</strong> is the first example of gold(I)-based luminogen capable of simultaneously exhibiting AIE and force-induced substantial weakening of fluorescence intensity. Based on the force-induced significant fluorescence attenuation feature of luminogenic complex <strong>2</strong>, an interesting information anticounterfeiting system involving a pizza model was successfully established. This work not only reports the first example of AIE-active gold(I) complex featuring anisotropic mechanical force-induced pronounced fluorescence reduction but also provides a valuable reference for anticounterfeit applications of mechanically responsive luminogens.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113544"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883002","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

A π-extended double-cavity cyclophane with enhanced host-guest charge transfer for NIR-II photothermal therapy 用于NIR-II光热治疗的具有增强主客体电荷转移的π扩展双腔环膜

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-05 DOI: 10.1016/j.dyepig.2026.113554

Nan Yao , Miaomiao Zhen , Jingjing Zhang , Guo Wang , Xiuteng Wang , Yanqing Xu , Wei Wei

{"title":"A π-extended double-cavity cyclophane with enhanced host-guest charge transfer for NIR-II photothermal therapy","authors":"Nan Yao , Miaomiao Zhen , Jingjing Zhang , Guo Wang , Xiuteng Wang , Yanqing Xu , Wei Wei","doi":"10.1016/j.dyepig.2026.113554","DOIUrl":"10.1016/j.dyepig.2026.113554","url":null,"abstract":"<div><div>Small-molecule near-infrared-II (NIR-II, 1000–1350 nm) photothermal agents (PTAs) are highly desirable for deep-tissue therapy but are often constrained by complex covalent syntheses that limit structural precision and accessibility. Herein, we report a rationally designed, water-soluble double-cavity cyclophane, <strong>GBox-5</strong><sup><strong>4+</strong></sup> (“Gemini Box”), featuring an electron-deficient naphthalene diimide core and π-extended biquinolinium sidewalls. Through host-guest charge transfer and face-to-face π–π stacking interactions, <strong>GBox-5</strong><sup><strong>4+</strong></sup> can bind different electron-rich planar guests with a 1:2 host/guest stoichiometry. Compared to its previously reported analogue, <strong>GBox-5</strong><sup><strong>4+</strong></sup> exhibits significantly enhanced absorption intensity and photothermal conversion effect upon host-guest complexation, attributed to its expanded π-conjugated sidewalls. Complexation with an oligo (ethylene glycol)-substituted diaminofluorene guest yields a stable water-soluble host–guest assembly that demonstrates efficient photothermal conversion under 1064 nm irradiation and effectively eradicates both Gram-negative and Gram-positive bacteria in vitro. This work highlights the critical role of rational molecular design in the development of advanced functional materials and provides a structurally defined supramolecular platform for future biomedical applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113554"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939794","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

Fast blue-switching photochromic lactone-fused naphthopyrans 快速蓝开关光致变色内酯融合萘吡喃

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-14 DOI: 10.1016/j.dyepig.2026.113569

Céu M. Sousa , Jerome Berthet , Paulo J. Coelho

引用次数: 0

Spectroscopic and theoretical investigations of donor–π–acceptor–donor architectured cyclometalated iridium(III) and ruthenium(II) complexes in photocatalytic hydrogen generation 光催化制氢中给体- π -受体-给体结构环金属化铱（III）和钌（II）配合物的光谱和理论研究

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2025-12-29 DOI: 10.1016/j.dyepig.2025.113533

Xiao Yao , Yudong Wen , Linyu Fan , Zesheng Zhang , Silong Li , Zhuwu Jiang , Jinfeng Chen , Cheuk-Lam Ho , Mingqiang Kang

{"title":"Spectroscopic and theoretical investigations of donor–π–acceptor–donor architectured cyclometalated iridium(III) and ruthenium(II) complexes in photocatalytic hydrogen generation","authors":"Xiao Yao , Yudong Wen , Linyu Fan , Zesheng Zhang , Silong Li , Zhuwu Jiang , Jinfeng Chen , Cheuk-Lam Ho , Mingqiang Kang","doi":"10.1016/j.dyepig.2025.113533","DOIUrl":"10.1016/j.dyepig.2025.113533","url":null,"abstract":"<div><div>Unlocking the full potential of solar-driven hydrogen production hinges on the development of next-generation photosensitizers that combine efficiency, stability, and environmental compatibility. Here, we introduce a new class of cyclometalated iridium(III) and ruthenium(II) complex-es, meticulously engineered with a donor–π–acceptor–donor (D–π–A–D) molecular framework. By integrating triphenylamine-based donor motifs and extended π-conjugation, alongside strategically tailored anchoring groups, these complexes transcend conventional photosensitizer de-sign—enabling high light-harvesting capabilities, robust interfacial coupling with TiO<sub>2</sub>, and accelerated charge separation dynamics. Advanced spectroscopic, electrochemical, and DFT investigations reveal that the D–π–A–D architecture not only amplifies visible-light absorption but also facilitates efficient electron injection into semiconductor interfaces. Notably, iridium(III) complexes equipped with phosphonate anchors achieve a maximum turnover number (TON) of 19,182 for photocatalytic hydrogen evolution under blue LED illumination. Beyond efficiency, these photosensitizers exhibit remarkable operational durability and minimal ecological impact, charting a path toward scalable, sustainable hydrogen generation. These findings underscore the considerable potential of D–π–A–D cyclometalated metal complexes, equipped with optimized anchoring groups, to function as robust photosensitizers for sustainable solar-driven hydrogen production.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113533"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882894","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

Promoting DNA alkylation of hypoxia-activated molecular prodrug for cooperative precision photodynamic-chemotherapy 促进缺氧激活分子前体药物DNA烷基化的协同精确光动力化疗

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2025-12-29 DOI: 10.1016/j.dyepig.2025.113532

Yang Zou , Xinmeng Yu , Manqing Wu , Shuang E , Yang Xuan , Yinan Zhao , Jiangli Fan , Shubiao Zhang

{"title":"Promoting DNA alkylation of hypoxia-activated molecular prodrug for cooperative precision photodynamic-chemotherapy","authors":"Yang Zou , Xinmeng Yu , Manqing Wu , Shuang E , Yang Xuan , Yinan Zhao , Jiangli Fan , Shubiao Zhang","doi":"10.1016/j.dyepig.2025.113532","DOIUrl":"10.1016/j.dyepig.2025.113532","url":null,"abstract":"<div><div>The combination of photodynamic therapy (PDT) and chemotherapy is a promising strategy to improve the effect of tumor treatment. However, the existing construction systems have insufficient killing selectivity and unclear synergistic mechanism. Herein, we developed a novel anticancer strategy based on a hypoxia-activated molecular prodrug (Cy-NM), which was formed by the covalent connection of an alkylating agent (NM) and a photodynamic photosensitizer (Cy-NH<sub>2</sub>), to achieve cooperative precision photodynamic-chemotherapy. Cy-NM with positive charge could structure-inherent targeting (SIT) to tumors and localized to the mitochondria of cancer cells. Under the action of azo reductase, Cy-NM was converted into Cy-NH<sub>2</sub>, thereby enhancing the photodynamic effect through the intramolecular charge transfer (ICT) effect and releasing NM. PDT consumed oxygen to further exacerbate tumor hypoxia and promote drug release, while the released drugs enhanced the photodynamic damage to mitochondria. The two treatments exhibited a synergistic promotion effect, achieving more effective and selective in killing cancer cells. Moreover, the fluorescence of Cy-NM changed from “off” to “on” after activation, which realized precise fluorescence diagnosis and visual treatment of tumors. Therefore, this prodrug design strategy offers a new perspective for improving the accuracy and efficiency of tumor treatment.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113532"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882895","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

B←N orientations and numbers driven regulation of packing modes and optoelectronic properties to realize panchromatic emission B←N取向和数量驱动封装模式和光电子特性的调节，实现全色发射

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2025-12-31 DOI: 10.1016/j.dyepig.2025.113542

Weibin Chen , Zepeng Wei , Muyi Cai , Nuo Xu , Qing Zhang , Geng-Geng Luo , Yalian Weng , Jianhua Huang

{"title":"B←N orientations and numbers driven regulation of packing modes and optoelectronic properties to realize panchromatic emission","authors":"Weibin Chen , Zepeng Wei , Muyi Cai , Nuo Xu , Qing Zhang , Geng-Geng Luo , Yalian Weng , Jianhua Huang","doi":"10.1016/j.dyepig.2025.113542","DOIUrl":"10.1016/j.dyepig.2025.113542","url":null,"abstract":"<div><div>B←N-embedded heteroaromatic molecules have been focused with great interests due to their unique optoelectronic properties and potential applications to electronic devices. Otherwise, studies on regulating the optoelectronic properties and packing modes by tailoring the B←N orientations have not been disclosed. Herein, based on two diazine moieties, i.e., pyrazine and pyrimidine, we designed four B←N-embedded molecules with different B←N orientations and numbers. The packing modes, absorption spectra, bandgaps, and photoluminescence properties are finely tuned by varying the B←N orientations and numbers. Interestingly, the isomers of pyrazine-derived <em>p</em>-2BN and pyrimidine-derived <em>m</em>-2BN exhibit completely different optical bandgaps (1.89 <em>vs</em> 2.54 eV), emission colors (red <em>vs</em> blue), full width at half maximum (fwhm, 97 <em>vs</em> 36 nm), and Stokes shifts (82 <em>vs</em> 10 nm), although their elementary compositions are exactly identical. Red, green, and blue emission colors are reached by tailoring the B←N orientations and numbers and panchromatic emission with CIE coordinate (0.32, 0.32) is realized by mixing the three colors. This work extended pathway of regulating optoelectronic properties of B←N-embedded heteroaromatic molecules, which can be widely applied to the design of B←N-embedded functional molecules.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113542"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883001","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

A diverse study on UVA aging behavior and influencing factors of safflower red, lac, and alizarin lake pigments in painted cultural relics 彩绘文物中红花红、紫胶、茜素湖色素UVA老化行为及影响因素的多元研究

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-05 DOI: 10.1016/j.dyepig.2026.113553

Qin Huang , Jiawei Tian , Xinyu Xie , Wenyuan Zhang , Xiaoyan Liu , Haixia Zhang

{"title":"A diverse study on UVA aging behavior and influencing factors of safflower red, lac, and alizarin lake pigments in painted cultural relics","authors":"Qin Huang , Jiawei Tian , Xinyu Xie , Wenyuan Zhang , Xiaoyan Liu , Haixia Zhang","doi":"10.1016/j.dyepig.2026.113553","DOIUrl":"10.1016/j.dyepig.2026.113553","url":null,"abstract":"<div><div>Photodegradation, particularly induced by ultraviolet radiation, is a major cause of discoloration in organic pigments, though studies on their UV aging behavior remain limited. This work investigated the effects of binder type, environmental humidity, temperature, and plaster composition on the UVA aging behavior of three representative red organic aluminum lake pigments (safflower red lake, lac lake, and alizarin lake) using colorimetry, ATR-FTIR spectroscopy, mass spectrometry (MS), and analysis of variance (ANOVA). The results demonstrated that binder type and concentration, humidity, temperature, and plaster layer composition all significantly influenced the discoloration rate of pigments under UVA-induced. High temperature, high humidity, and alkaline plaster layers accelerated UVA degradation of pigments, whereas linseed oil formed a protective film that mitigated degradation of pigments. MS analysis confirmed that external factors did not alter the characteristic pigment markers, which ensured reliable identification of these lake pigments in cultural relics. These findings provide theoretical support and practical guidance for the conservation and identification of organic aluminum lake pigments in cultural heritage, highlighting their considerable practical significance.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113553"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939843","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