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 Q2 CHEMISTRY, APPLIED

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

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 o-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.

四环素类抗生素的过度使用引起了严重的环境和健康问题，而传统的检测方法在实时监测和细胞内分析方面面临挑战。本研究以生物素和邻苯二胺为前体，采用一步水热法制备了硫掺杂碳点（S-CDs）。所制备的S-CDs具有三个关键的功能特性：(1)在特定的分子相互作用（内部过滤效应和静态猝灭）驱动下，对TC具有高度敏感的荧光猝灭响应，检测限为76.6 nM，线性范围为0-200 μM；(2)由表面酸碱基团质子化引起的pH依赖性荧光信号（pH 2.0-8.0）；(3)选择性溶酶体靶向，通过共聚焦显微镜在HeLa细胞和斑马鱼模型中证实，Pearson相关系数为0.95。S-CDs在实际食品样品（牛奶、牛肉和猪肉）中具有良好的回收率（97.07 - 107.99%），细胞毒性可以忽略不计。这项工作有效地将环境污染物检测与细胞内微环境分析相结合，为研究tc诱导的溶酶体功能障碍提供了一种通用的工具，并促进了食品安全监测和生物医学成像。

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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 Q2 CHEMISTRY, APPLIED

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

A near-infrared (NIR) fluorescent probe (CCH) 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 Hg²⁺ detection in aqueous solutions and environmental samples across a broad pH range (2–10), with a rapid response time, enabling real-time monitoring of Hg²⁺ in aquatic environments. Spectral analyses showed a 1:1 binding ratio between CCH and Hg²⁺, with the detection limits of 3.20 × 10⁻⁷ M (Ultraviolet–Visible) and 1.22 × 10⁻⁷ M (fluorescence), along with a binding constant of 1.36 × 10⁴ M⁻¹. 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, CCH exhibited excellent biocompatibility and successfully achieved the fluorescence imaging in cancer cells, underscoring its potential for biological applications.

以4-二乙基氨基水杨酸为结构单元，巯基杂环化合物为功能修饰剂，构建了一种以铬-花青素为支架的近红外荧光探针（CCH）。该探针在较宽的pH范围（2-10）内对水溶液和环境样品的Hg2+检测具有高选择性，响应时间短，可实现对水生环境中Hg2+的实时监测。光谱分析表明，CCH与Hg2+的结合比为1:1，检出限分别为3.20 × 10−7 M（紫外-可见）和1.22 × 10−7 M（荧光），结合常数为1.36 × 104 M−1。通过质谱（MS）、傅里叶变换红外光谱（FTIR）和密度泛函理论（DFT）计算的机理研究证实了基于光诱导电子转移（PET）的识别机制。实际应用验证了探针在环境水分析、滤纸分析和食品样品检测中的有效性。此外，CCH表现出良好的生物相容性，并成功地在癌细胞中实现了荧光成像，突显了其生物学应用潜力。

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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 Q2 CHEMISTRY, APPLIED

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

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 (CH₃ and CF₃) 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.

鉴于间位芳纶（PMIA）优异的力学性能和耐热性，利用它制备光致变色材料以应对极端环境下的色彩响应挑战是一个很有前途的候选材料。然而，刚性苯环结构和强氢键导致PMIA的刚性，限制了其应用。本研究在PMIA分子的主链中引入两个具有相同醚键和不同侧基（CH3和CF3）的单体单元，以提高PMIA分子的柔韧性。同时，将与PMIA具有良好配伍性的4,4′-联吡啶衍生物（DBDB）共混制备两种柔性光致变色PMIA （FPMIA和HPMIA）。与PMIA相比，FPMIA和HPMIA的弹性模量分别降低了29.09%和19.19%，玻璃化转变温度分别降低到262℃和267℃，这反映了醚键和侧基单元的协同作用使聚合物分子链更具柔韧性。此外，FPMIA和HPMIA的光学透明度分别为89.5%和89.2%，并表现出可逆的光致变色行为。同时，研究了FPMIA和HPMIA聚集体结构对颜色响应的影响。本研究为高性能可加工柔性PMIA的发展提供了新的前景，有助于扩大其在信息存储、光学和防伪等方面的潜在应用。

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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 Q2 CHEMISTRY, APPLIED

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

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, 1 and 2. Both molecules exhibited aggregation-induced emission (AIE) characteristics. Specifically, complex 1 showed reversible hypsochromic MFC. In contrast, complex 2 exhibited force-induced substantial weakening of fluorescence intensity. It is worth noting that 2 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 2, 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.

由于其独特的刺激响应特性，具有次变色机械荧光变色（MFC）或力致荧光强度大幅减弱的材料在信息安全领域显示出显着的应用潜力。本研究设计并合成了两种新型芴基双核金(I)配合物1和2。两种分子均表现出聚集诱导发射（AIE）特性。具体来说，配合物1表现出可逆的低色MFC。相反，配合物2表现出力诱导的荧光强度明显减弱。值得注意的是，2是第一个能够同时表现出AIE和力诱导的荧光强度大幅减弱的金(I)基发光材料。基于致发光配合物2的力致显著荧光衰减特性，成功建立了一个涉及披萨模型的有趣信息防伪系统。本工作不仅首次报道了aie -活性金(I)配合物具有各向异性机械力诱导的显著荧光还原特性，而且为机械响应发光物质的防伪应用提供了有价值的参考。

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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 Q2 CHEMISTRY, APPLIED

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

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, GBox-5⁴⁺ (“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, GBox-5⁴⁺ can bind different electron-rich planar guests with a 1:2 host/guest stoichiometry. Compared to its previously reported analogue, GBox-5⁴⁺ 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.

小分子近红外ii （NIR-II, 1000-1350 nm）光热剂（pta）在深层组织治疗中是非常理想的，但通常受到复杂共价合成的限制，限制了结构精度和可及性。本文报道了一种合理设计的水溶性双腔环烷GBox-54+（“Gemini Box”），具有缺电子的萘二亚胺核和π扩展双喹啉侧壁。GBox-54+通过主客体电荷转移和面对面的π -π堆叠相互作用，可以以1:2的主客体化学计量结合不同的富电子平面客体。与先前报道的类似物相比，GBox-54+由于其扩大的π共轭侧壁，在主客体络合过程中表现出显著增强的吸收强度和光热转换效应。与低聚乙二醇取代的二氨基芴络合产生稳定的水溶性主-客体组合，在1064 nm照射下表现出有效的光热转化，并在体外有效地根除革兰氏阴性和革兰氏阳性细菌。这项工作强调了合理分子设计在先进功能材料开发中的关键作用，并为未来生物医学应用提供了一个结构明确的超分子平台。

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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 Q2 CHEMISTRY, APPLIED

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

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 TiO₂, 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.

释放太阳能驱动制氢的全部潜力取决于下一代光敏剂的发展，这种光敏剂结合了效率、稳定性和环境兼容性。在这里，我们介绍了一类新的环金属化铱（III）和钌（II）配合物，精心设计了一个供体- π -受体-供体（D -π-A-D）分子框架。通过整合基于三苯胺的给体基序和扩展π共轭，以及精心定制的锚定基团，这些配合物超越了传统的光敏剂设计，实现了高光收集能力，与TiO2的强大界面耦合，加速了电荷分离动力学。先进的光谱、电化学和DFT研究表明，D -π-A-D结构不仅可以放大可见光吸收，还可以促进半导体界面的有效电子注入。值得注意的是，在蓝色LED照明下，配备磷酸盐锚点的铱（III）配合物的光催化析氢的最大周转量（TON）为19,182。除了效率之外，这些光敏剂还表现出卓越的操作耐久性和最小的生态影响，为可扩展、可持续的制氢指明了道路。这些发现强调了具有优化锚定基团的D -π-A-D环金属化金属配合物作为可持续太阳能驱动制氢的强大光敏剂的巨大潜力。

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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 Q2 CHEMISTRY, APPLIED

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

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-NH₂), 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-NH₂, 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.

光动力疗法（PDT）与化疗相结合是提高肿瘤治疗效果的一种有前景的策略。然而，现有的构建体系杀灭选择性不足，协同机制不明确。在此，我们开发了一种新的基于缺氧激活的分子前药（Cy-NM）的抗癌策略，该策略是由烷基化剂（NM）和光动力光敏剂（Cy-NH2）的共价连接形成的，以实现协同精确光动力化疗。带正电荷的Cy-NM具有结构固有靶向肿瘤的功能，定位于癌细胞的线粒体。在偶氮还原酶的作用下，Cy-NM被转化为Cy-NH2，从而通过分子内电荷转移（ICT）效应增强光动力效应，释放NM。PDT消耗氧气，进一步加剧肿瘤缺氧，促进药物释放，而释放的药物则增强了对线粒体的光动力损伤。两种治疗方法表现出协同促进作用，对癌细胞的杀伤更有效、选择性更强。并且Cy-NM激活后荧光由“灭”变为“亮”，实现了肿瘤的精确荧光诊断和视觉治疗。因此，这种前药设计策略为提高肿瘤治疗的准确性和效率提供了新的视角。

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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 Q2 CHEMISTRY, APPLIED

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

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 p-2BN and pyrimidine-derived m-2BN exhibit completely different optical bandgaps (1.89 vs 2.54 eV), emission colors (red vs blue), full width at half maximum (fwhm, 97 vs 36 nm), and Stokes shifts (82 vs 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.

嵌入B←n的杂芳香分子由于其独特的光电性质和在电子器件中的潜在应用而引起了人们的极大兴趣。另外，通过调整B←N取向来调节光电性能和封装模式的研究尚未公开。本文以吡嗪和嘧啶这两个嘧啶基团为基础，设计了4个B←N取向和数目不同的B←N嵌入分子。通过改变B←N的取向和数量，可以很好地调整填料模式、吸收光谱、带隙和光致发光性能。有趣的是，吡嗪衍生的p- 20和嘧啶衍生的m- 20的异构体表现出完全不同的光学带隙（1.89 vs 2.54 eV），发射颜色（红色vs蓝色），最大半宽（fwhm, 97 vs 36 nm）和斯托克斯位移（82 vs 10 nm），尽管它们的基本成分完全相同。通过调整B←N的方向和数量，可以获得红、绿、蓝三种发射色，三种颜色混合可以实现具有CIE坐标（0.32,0.32）的全色发射。本工作拓展了B←n包埋杂芳香分子光电特性的调控途径，可广泛应用于B←n包埋功能分子的设计。

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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 Q2 CHEMISTRY, APPLIED

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

New colorless lactone-fused naphthopyrans with amino substituents were prepared and their photochromic properties studied in solution and dispersed in an organic polymeric matrix. UV irradiation of these compounds leads to an immediate development of an intense blue color which fades in a few seconds in the dark, unlike the parent unfused naphthopyrans which show a much slower response to the variable UV light intensity.

制备了一种新型无色的含氨基取代基内酯融合萘吡喃，研究了其在溶液中的光致变色性能和在有机聚合物基体中的分散性能。这些化合物在紫外线照射下会立即形成一种强烈的蓝色，在黑暗中几秒钟就会消失，这与母体未融合的萘吡喃不同，后者对可变的紫外线强度的反应要慢得多。

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 Q2 CHEMISTRY, APPLIED

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

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.

光降解，特别是由紫外线辐射引起的，是有机色素变色的主要原因，尽管对其紫外线老化行为的研究仍然有限。采用比色法、ATR-FTIR光谱法、质谱法和方差分析（ANOVA）研究了粘合剂类型、环境湿度、温度和石膏成分对三种具有代表性的红色有机铝湖颜料（红花湖、紫湖和芫花湖）UVA老化行为的影响。结果表明，胶结剂类型、浓度、湿度、温度、灰泥层组成对uva诱导下颜料的变色率均有显著影响。高温、高湿和碱性石膏层加速了UVA对颜料的降解，而亚麻籽油形成的保护膜则减缓了颜料的降解。质谱分析证实，外界因素没有改变湖泊色素的特征标记，保证了这些湖泊色素在文物中的可靠鉴定。这些发现为文化遗产中有机铝湖颜料的保护鉴定提供了理论支持和实践指导，凸显了其重要的现实意义。

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引用次数: 0