Dyes and Pigments最新文献_第8页

Breaking the lifetime-efficiency trade-off in blue organic room-temperature phosphorescence through site-directed boronate engineering 通过定点硼酸工程打破蓝色有机室温磷光的寿命效率权衡

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.2025.113534

Dong Ding , Xinyue Xu , Jing Lv , Feng Li , Deyu Liu , Erkin Zakhidov , Mingliang Sun

{"title":"Breaking the lifetime-efficiency trade-off in blue organic room-temperature phosphorescence through site-directed boronate engineering","authors":"Dong Ding , Xinyue Xu , Jing Lv , Feng Li , Deyu Liu , Erkin Zakhidov , Mingliang Sun","doi":"10.1016/j.dyepig.2025.113534","DOIUrl":"10.1016/j.dyepig.2025.113534","url":null,"abstract":"<div><div>Organic room-temperature phosphorescent (RTP) materials with tunable lifetimes are of great interest for information display, anti-counterfeiting, and data storage. However, achieving both ultralong lifetimes and high quantum yields, particularly in the blue region, remains challenging due to their inherent trade-off. Herein, a site-dictated strategy is employed by introducing pinacol boronate ester (Bpin) groups at the 1-, 2-, and 4-positions of a carbazole scaffold (CZ1B, CZ2B, and CZ4B), and embedding the resulting phosphors into a poly(vinyl alcohol) (PVA) matrix. All three emitters exhibit visible blue RTP with tunable lifetimes ranging from 3.96 s (CZ1B) to 5.20 s (CZ2B)—among the longest reported—along with high phosphorescence quantum yields (17.94–26.95 %). Combined theoretical and experimental studies reveal that Bpin substitution site affects excited-state characteristics, spin–orbit coupling, and hydrogen-bonding interactions with the PVA host. Notably, CZ2B shows optimal excited-state separation, highest surface electrostatic potential, and strongest hydrogen bonding, leading to superior RTP performance. This study presents a precise structural approach to modulate both phosphorescence lifetime and efficiency, offering valuable insight for the development of long-lived blue RTP materials in advanced optical applications such as data storage and visual encryption.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113534"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882893","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

Multifunctional application of a sulfadiazine azo dye as electrochemical sensor, corrosion inhibitor, and forensic imaging agent 磺胺嘧啶偶氮染料作为电化学传感器、缓蚀剂和法医成像剂的多功能应用

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2025-12-24 DOI: 10.1016/j.dyepig.2025.113503

Sneha Parameshwarappa , Keerthikumar T. Chinnagiri , Ramyakumari T. Chinnagiri , Raghavendra M. Thippandegowdru

{"title":"Multifunctional application of a sulfadiazine azo dye as electrochemical sensor, corrosion inhibitor, and forensic imaging agent","authors":"Sneha Parameshwarappa , Keerthikumar T. Chinnagiri , Ramyakumari T. Chinnagiri , Raghavendra M. Thippandegowdru","doi":"10.1016/j.dyepig.2025.113503","DOIUrl":"10.1016/j.dyepig.2025.113503","url":null,"abstract":"<div><div>This study reports the development of a novel electrochemical sensor for the simultaneous determination of paracetamol (PR) and tryptophan (TR) using a carbon paste electrode modified with a synthesized sulfadiazine-resorcinol azo dye (SRAD). The SRAD compound was synthesized via a diazo coupling reaction and its molecular structure was confirmed using spectroscopic techniques. Electrochemical characterization demonstrated that the sulfadiazine-resorcinol azo dye modified carbon paste electrode (SRAD/MCPE) exhibits good performance for the concurrent quantification of PR and TR. The sensor achieved low limits of detection (7.9 μM for PR and 4.11 μM for TR), along with good Repeatability and stability. Operational parameters such as pH, scan rate, and interference effects were systematically optimized. In parallel, SRAD exhibited significant corrosion inhibition efficiency for mild steel in acidic media, functioning as good inhibitor with spontaneous Langmuir adsorption behavior. Surface analysis via SEM validated the protective film formation. Furthermore, the utility of SRAD was extended to forensic science, where the dusting method successfully visualized Level I and II latent fingerprint features under both normal and UV illumination.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113503"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882896","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

Black photochromic smart windows for dynamic light and thermal regulation 黑色光致变色智能窗，用于动态光和热调节

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-06 DOI: 10.1016/j.dyepig.2026.113562

Zhen Du , Jiangpeng Li , Yan Zhang , Yonghua Qin , Zongming Tian , Guojian Yang

{"title":"Black photochromic smart windows for dynamic light and thermal regulation","authors":"Zhen Du , Jiangpeng Li , Yan Zhang , Yonghua Qin , Zongming Tian , Guojian Yang","doi":"10.1016/j.dyepig.2026.113562","DOIUrl":"10.1016/j.dyepig.2026.113562","url":null,"abstract":"<div><div>Black photochromic (PC) smart windows, with their exceptional optical and thermal regulation capabilities, have received significant attention in the field of PC smart windows. However, due to the solid confinement effect, the transmittance and response speed cannot be compatible, and to the best of our knowledge, pure black PC smart windows are rarely reported. In this study, we develop a black PC smart window based on a photoacid/acidochromic dye system by incorporating a plasticizer (PEG400) into a rigid PMMA matrix. Through ingenious design, the smart window maintains the high transmittance of PMMA while overcoming the solid confinement effect, successfully achieving a PC smart window with rapid response speed (color within 30 s at room temperature, bleach within 1 min at 100 °C or 3 h at room temperature). Moreover, it exhibits high optical contrast (ΔT = 80 %, 595 nm), good cycling stability (>40 cycles at thermal erasing, >60 cycles at room temperature erasing), and spectrally tunable properties (enabling yellow, red, blue, cyan and black states). Through systematic experimental investigations, the mechanism by which PEG400 enhances photo-response speed has been elucidated. Finally, we demonstrate the practical application of this material as a smart window under various weather conditions. This work not only expands the color options (switch between yellow and black) for PC smart windows, but also provides new insights for designing other stimulus-responsive smart windows.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113562"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939795","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

Enhancing photochromic properties of triphenylethylene derivatives via the modulation of intermolecular interactions 通过调节分子间相互作用增强三苯基乙烯衍生物的光致变色性能

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.2026.113565

Mingyao Shen , Jiamin Wu , Simin Zhang , Jindou Zou , Yi Zhou , Heyang Li , Tao Yu

{"title":"Enhancing photochromic properties of triphenylethylene derivatives via the modulation of intermolecular interactions","authors":"Mingyao Shen , Jiamin Wu , Simin Zhang , Jindou Zou , Yi Zhou , Heyang Li , Tao Yu","doi":"10.1016/j.dyepig.2026.113565","DOIUrl":"10.1016/j.dyepig.2026.113565","url":null,"abstract":"<div><div>Organic photochromic materials undergo reversible color changes upon exposure to specific wavelengths of light and have found numerous applications, including photoswitches and information storage. Triarylethylene derivatives are a promising class of organic photochromic systems due to their simple synthesis and impressive performance. However, the relationships between the construction of intermolecular interactions and photochromic properties remain unclear. Herein, three triarylethylene derivatives with different electron-withdrawing groups, namely TrPE-<em>o</em>-Ph, TrPE-<em>o</em>-PhF, and TrPE-<em>o</em>-PhCF<sub>3</sub>, were designed and synthesized. Detailed photochromic studies show that all three compounds display rapid photoresponse, high photobleaching rates, and good fatigue resistance in both crystalline and amorphous powders. Notably, TrPE-<em>o</em>-PhCF<sub>3</sub> demonstrates superior saturated absorption and much longer thermal decoloration time compared to the other two derivatives. Single-crystal analysis shows that TrPE-<em>o</em>-PhCF<sub>3</sub> adopts two distinct conformations in the packing patterns, with unique dimers formed <em>via</em> C–H⋯F intermolecular hydrogen bonds, providing increased space for conrotatory cyclization and stability of the closed form during coloration. This design strategy of modulating intermolecular interactions to enhance photochromic properties offers a new approach to developing advanced triarylethylene photochromic materials.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113565"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973455","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

Portable fluorescent probe for on-site visual detection and quantification of hydrazine and viscosity in environmental and food samples 便携式荧光探针用于环境和食品样品中肼和粘度的现场目视检测和定量

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-09 DOI: 10.1016/j.dyepig.2026.113564

Sha Li, Yaqi Li, Qianqian Lin, Wei Wen, Xinyu Xu

{"title":"Portable fluorescent probe for on-site visual detection and quantification of hydrazine and viscosity in environmental and food samples","authors":"Sha Li, Yaqi Li, Qianqian Lin, Wei Wen, Xinyu Xu","doi":"10.1016/j.dyepig.2026.113564","DOIUrl":"10.1016/j.dyepig.2026.113564","url":null,"abstract":"<div><div>Hydrazine (N<sub>2</sub>H<sub>4</sub>) is a highly toxic and carcinogenic pollutant commonly found in industrial wastewater, agricultural runoff, and contaminated soil, posing serious risks to ecosystems and human health. Here, we introduce a novel ratiometric fluorescent probe (<strong>SO</strong>) for quick, selective, and visual detection of N<sub>2</sub>H<sub>4</sub> in complex environmental amples. The probe demonstrates an ultra-sensitive red-to-blue fluorescence shift (from 626 nm to 472 nm) when reacting with N<sub>2</sub>H<sub>4</sub> through a nucleophilic addition and cleavage mechanism, with a detection limit of 24 nM. Because of the presence of molecular rotors, <strong>SO</strong> shows a good linear relationship with viscosity at 626 nm. To support real-world on-site testing, portable solid-state test strips and cotton swabs were created by loading <strong>SO</strong> onto filter paper and cotton materials. These devices displayed noticeable color changes visible to the naked eye within 1 min. Its practical use has been confirmed with real environmental samples. Rapid and sensitive visual detection of N<sub>2</sub>H<sub>4</sub> was performed in various water sources, soil samples, plant tissues (such as bean sprouts and leaves). In addition, the sensing platform was successfully extended to monitor food freshness by detecting spoilage related volatile biogenic amines and to develop smart gloves for tactile contamination screening. This work offers a low-cost, equipment-free, and fast sensing platform for reliable hydrazine monitoring, with strong potential for environmental risk assessments and pollution management.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113564"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973388","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

Tunable aggregation-induced emission in π-extended Aroylthiophene–Carbazole emitters π扩展芳基噻吩-咔唑类发射体的可调聚集诱导发射

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-06 DOI: 10.1016/j.dyepig.2026.113556

Ajeet Kumar Sharma , Panaha , K.R. Justin Thomas , Cheng-Jui Wu , Dian Luo , Shun-Wei Liu , Chih-Hsin Chen

{"title":"Tunable aggregation-induced emission in π-extended Aroylthiophene–Carbazole emitters","authors":"Ajeet Kumar Sharma , Panaha , K.R. Justin Thomas , Cheng-Jui Wu , Dian Luo , Shun-Wei Liu , Chih-Hsin Chen","doi":"10.1016/j.dyepig.2026.113556","DOIUrl":"10.1016/j.dyepig.2026.113556","url":null,"abstract":"<div><div>Benzophenone derivatives have gained substantial attention as versatile acceptor cores for developing efficient emissive materials in organic light-emitting diodes (OLEDs). The photophysical properties of these materials can be systematically tuned through the introduction of electron-donating groups, enabling control over fluorescence, thermally activated delayed fluorescence (TADF), or room-temperature phosphorescence (RTP). In this study, we designed and synthesized a new series of aroylthiophene-based emitters containing <em>N</em>-phenylcarbazole (<em>N</em>-PhCbz) donors and various aryl fragments such as naphthyl, anthracene, and pyrene. Theoretical calculations indicate that the large singlet–triplet energy gaps render these systems unfavorable for TADF, yet their emission behaviors are markedly sensitive to aggregation. The naphthyl and pyrene derivatives exhibit aggregation-induced emission enhancement (AIEE) aided by hydrogen bonding which restricts intramolecular rotation (RIR), whereas the anthracene analogue displays aggregation-caused quenching (ACQ). The pyrene derivative shows a distinct, red-shifted absorption and 3.2-fold emission enhancement in 90 % water–THF mixture due to ordered morphology of aggregate, which is supported by SEM analysis and lifetime measurement in different water fractions. All compounds exhibit solvent-dependent emission, showing a linear correlation in the Lippert–Mataga plot, while their high decomposition temperatures (≥317 °C) confirm excellent thermal stability. Non-doped OLEDs fabricated using these emitters demonstrate efficiencies, with the pyrene derivative achieving the highest external quantum efficiency (EQE) of 0.51 %. These results provide valuable insights into the structure–property relationship of aroylthiophene-based emitters and suggest potential for developing aggregation-enhanced emitters for optoelectronic applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113556"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973510","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

Investigating the effect of side chain lengths on photovoltaic performance of non-fused ring electron acceptors 研究了侧链长度对非熔合环电子受体光电性能的影响

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.2026.113572

Dan He, Nuo Chen, Linwei Xie, Yahui Bai, Zhihui Lin, Qi Ai, Fuwen Zhao

{"title":"Investigating the effect of side chain lengths on photovoltaic performance of non-fused ring electron acceptors","authors":"Dan He, Nuo Chen, Linwei Xie, Yahui Bai, Zhihui Lin, Qi Ai, Fuwen Zhao","doi":"10.1016/j.dyepig.2026.113572","DOIUrl":"10.1016/j.dyepig.2026.113572","url":null,"abstract":"<div><div>The high synthesis complexity and production costs of organic photovoltaic materials hinder the commercial viability of organic solar cells (OSCs). In this work, two novel non-fused ring electron acceptors (NFREAs), <strong>A1C4</strong> and <strong>A1C6</strong> with simple molecular structure, were designed and synthesized by short synthetic route. After blended with the polymer electron donor <strong>PBDB-T</strong>, <strong>A1C6</strong> forms a finer phase separation, leading to lower trap density and suppressed charge recombination. Thus, <strong>PBDB-T</strong>:<strong>A1C6</strong> based OSCs exhibit enhanced exciton dissociation and charge transport. Consequently, <strong>PBDB-T</strong>:<strong>A1C6</strong>-based OSCs achieve a power conversion efficiency (PCE) of 11.73 %, significantly outperforming <strong>A1C4</strong>-based devices (9.95 %). Furthermore, ternary OSCs based on <strong>D18</strong>:<strong>L8-BO</strong>:<strong>A1C6</strong> provide a striking PCE as high as 19.40 %, which is among the highest values for OSCs involving NFREAs. This work indicates that fine-tuning alkyl side-chain length is an effective and easily accessible strategy to optimize the photovoltaic performance of NFREAs, providing a viable pathway toward the commercialization of OSCs.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113572"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973509","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

Coordination–sensitized dual–channel fluorescence of a xylenol orange–based AIE complex for tetracycline detection in food 二甲酚橙基AIE配合物的配位敏化双通道荧光检测食品中四环素

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2026-01-16 DOI: 10.1016/j.dyepig.2026.113579

Yu Li , Qinkun Huang , Huihui Li , Shiyu Li , Jingxuan Han , Dong-Yu Guo , Zhonglin Yu , Qinhe Pan

{"title":"Coordination–sensitized dual–channel fluorescence of a xylenol orange–based AIE complex for tetracycline detection in food","authors":"Yu Li , Qinkun Huang , Huihui Li , Shiyu Li , Jingxuan Han , Dong-Yu Guo , Zhonglin Yu , Qinhe Pan","doi":"10.1016/j.dyepig.2026.113579","DOIUrl":"10.1016/j.dyepig.2026.113579","url":null,"abstract":"<div><div>The tetracycline (TC) residue poses a significant threat to the safety of animal–derived food. Coordination–sensitized luminescence is a common method for detecting TC, but this approach relies on single–channel fluorescence, which is less resistant to interference and causes false detection. To improve detection accuracy, a coordination–sensitized dual–channel fluorescence probe was here developed for TC based on the complex of an AIE dye (xylenol orange, XO) with Zn<sup>2+</sup>. After adding TC to the complex, TC and XO were bridged by the coordination of Zn<sup>2+</sup> to form a ternary complex. In the ternary complex, the green emission of TC at 520 nm was sensitized owing to the coordination of TC with Zn<sup>2+</sup>, and the red emission of XO at 600 nm was also sensitized because TC limited the rotation of XO. The dual–channel sensing property of the complex exhibited the advantage of the self–validation effect, avoiding false results and improving detection accuracy. The complex also displayed the merits of simple preparation (one–step synthesis at 25 °C), low detection limits (channel 520 nm: 6.7 nM, channel 600 nm: 12.9 nM) and short response times (channel 520 nm:10 s, channel 600 nm: 10 s). The complex was applied to determine TC in milk, honey and pork samples, and combined with a smartphone to facilitate visual dual–channel detection of TC. This work introduces Zn<sup>2+</sup> and an AIE dye as two coordination–sensitized luminescence sites for dual–channel detection of TC, providing a reliable tool to analyze TC in animal–derived food.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113579"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034383","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 fabrication of AIE-active type I photosensitive antibacterial polymer based on photopolymerization 基于光聚合的aie活性I型光敏抗菌聚合物的快速制备

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.2026.113555

Shuo Zhao , Qing Wan , Jiacheng Song , Minbo Nie , Xin Chen , Junyuan Li , Chunhui Zhao , Yili Xie , Xin Gan

{"title":"Fast fabrication of AIE-active type I photosensitive antibacterial polymer based on photopolymerization","authors":"Shuo Zhao , Qing Wan , Jiacheng Song , Minbo Nie , Xin Chen , Junyuan Li , Chunhui Zhao , Yili Xie , Xin Gan","doi":"10.1016/j.dyepig.2026.113555","DOIUrl":"10.1016/j.dyepig.2026.113555","url":null,"abstract":"<div><div>Advance antibacterial technology of photodynamic therapy (PDT) has received sustained attention due to its significant advantages of the noninvasive characteristic, spatial-temporal control and be free of drug resistance. Photosensitizer (PS) is one of important parts to fabricate outstanding PDT, the existed strategies of achieving satisfactory antibacterial behavior generally adopted small-molecular PS or PS-doped polymeric nanoparticles to kill harmful bacterial, but suffered from the problems of triggering biotoxicity and easy leakage of PS from nanoparticles. Herein, to achieve effective, stable and long-term antibacterial effect but avoiding to appear the leakage and cause biotoxicity from small-molecule PS, we adopted the photocurable technology to prepare quickly bright antibacterial polymeric films by mixing polymeric monomers of designed aggregation-induced emission (AIE) active type I PS and 2-hydroxyethyl methacrylate as well as photo-initiator of 1173. Such obtained polymeric film possessed great stability and negligible dye leakage because of their structural composition was based on the form of chemical covalent bond, which ensured better antibacterial effect because of effective production of type I reactive oxygen species of hydroxyl radical a superoxide anion. This work proposed a new strategy to achieve quick preparation of photodynamic antibacterial polymeric film, showing promising potential of clinical application.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113555"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939844","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

Di amine BODIPY and BOPHY as dual sensor of pH and selective to Cu2+ 二胺BODIPY和BOPHY作为pH和Cu2+选择性的双传感器

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2026-05-01 Epub Date: 2025-12-23 DOI: 10.1016/j.dyepig.2025.113521

Tania Mazuelo , Teresa Naranjo , Miguel Gomez-Mendoza , Víctor A. de la Peña O'Shea , Marta Liras

{"title":"Di amine BODIPY and BOPHY as dual sensor of pH and selective to Cu2+","authors":"Tania Mazuelo , Teresa Naranjo , Miguel Gomez-Mendoza , Víctor A. de la Peña O'Shea , Marta Liras","doi":"10.1016/j.dyepig.2025.113521","DOIUrl":"10.1016/j.dyepig.2025.113521","url":null,"abstract":"<div><div>This work reports the synthesis and characterization of two diamino functionalized dyes based on BODIPY and BOPHY, designed as dual optical sensors for pH and metal ions, especially Cu<sup>2+</sup>. Both compounds display environmentally modulated fluorescence, with reversible “on-off” behavior upon changes in pH and metal coordination.</div><div>Spectroscopic studies reveal that, in acidic media (pH ≤ 4), both dyes experience a notable increase in fluorescence (up to 25 or 250-times for BODIPY and BOPHY, respectively), along with color changes clearly visible to the naked eye. These effects are accompanied by hypsochromic shifts in the absorption bands, on the order of 30–80 nm, which are attributed to the protonation of the amino groups and the reduction of the pyramidal inversion of nitrogen. Moreover, both compounds display distinct optical responses upon exposure to various metal salts, with BODIPY showing selective and transient fluorescence activation in the presence of copper sulfate under near-neutral conditions. Detailed analyses suggest the formation of three distinct species during the Cu<sup>2+</sup> interaction: (I) the native dye, (II) a highly fluorescent intermediate complex, and (III) a non-emissive decomposition product. The kinetics and stability of these species were found to be highly dependent on the solvent environment, particularly its protic/aprotic nature.</div><div>These findings underscore the potential of these small, structurally simple dyes as efficient dual-function sensors, offering broad applicability in environmental monitoring, biological imaging, and chemical sensing.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"248 ","pages":"Article 113521"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882898","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