Dyes and Pigments最新文献

英文中文

Recent advances in dual-channel colorimetric and fluorometric probes for selective Sn2+ detection: Bioimaging and environmental perspectives

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-03 DOI: 10.1016/j.dyepig.2025.112800

Amal Adnan Ashour , Abeer Alubaidi , Alaa Shafie

The detection of Sn²⁺ ions is critical in both biomedical and environmental contexts due to their dual role as essential elements and potential toxins. Recent advancements in dual-channel colorimetric and fluorometric probes have revolutionized Sn²⁺ detection, offering unprecedented sensitivity, selectivity, and real-time monitoring capabilities. These probes integrate colorimetric and fluorometric mechanisms, providing dual verification and enhanced reliability. Innovations in molecular design, including organic compounds and nanomaterials, have expanded their utility in diverse environments. In bioimaging, these probes enable precise intracellular localization and dynamic Sn²⁺ tracking, unlocking new insights into cellular processes. Environmentally, they empower rapid and portable monitoring of Sn²⁺ contamination in water, soil, and industrial effluents, ensuring ecosystem safety. This review aims to provide a comprehensive overview of recent advancements in the development of dual-channel colorimetric and fluorometric probes for the selective detection of Sn²⁺ ions. The focus is on summarizing innovative design strategies and sensing mechanisms that enhance probe selectivity and sensitivity. Additionally, the review highlights the practical applications of these probes in bioimaging and environmental monitoring, addressing current challenges and potential future directions in the field. By consolidating key findings, the review seeks to guide researchers in the development of next-generation probes with improved performance and multifunctionality.

{"title":"Recent advances in dual-channel colorimetric and fluorometric probes for selective Sn2+ detection: Bioimaging and environmental perspectives","authors":"Amal Adnan Ashour , Abeer Alubaidi , Alaa Shafie","doi":"10.1016/j.dyepig.2025.112800","DOIUrl":"10.1016/j.dyepig.2025.112800","url":null,"abstract":"<div><div>The detection of Sn<sup>2+</sup> ions is critical in both biomedical and environmental contexts due to their dual role as essential elements and potential toxins. Recent advancements in dual-channel colorimetric and fluorometric probes have revolutionized Sn<sup>2+</sup> detection, offering unprecedented sensitivity, selectivity, and real-time monitoring capabilities. These probes integrate colorimetric and fluorometric mechanisms, providing dual verification and enhanced reliability. Innovations in molecular design, including organic compounds and nanomaterials, have expanded their utility in diverse environments. In bioimaging, these probes enable precise intracellular localization and dynamic Sn<sup>2+</sup> tracking, unlocking new insights into cellular processes. Environmentally, they empower rapid and portable monitoring of Sn<sup>2+</sup> contamination in water, soil, and industrial effluents, ensuring ecosystem safety. This review aims to provide a comprehensive overview of recent advancements in the development of dual-channel colorimetric and fluorometric probes for the selective detection of Sn<sup>2+</sup> ions. The focus is on summarizing innovative design strategies and sensing mechanisms that enhance probe selectivity and sensitivity. Additionally, the review highlights the practical applications of these probes in bioimaging and environmental monitoring, addressing current challenges and potential future directions in the field. By consolidating key findings, the review seeks to guide researchers in the development of next-generation probes with improved performance and multifunctionality.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112800"},"PeriodicalIF":4.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800160","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

Tetraphenylethylene-based aggregation-induced emission luminogens with mechanofluorochromism and Fe2+/Fe3+ detection applications 具有机械荧光和 Fe2+/Fe3+ 检测应用的四苯基乙烯基聚合诱导发射发光剂

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-03 DOI: 10.1016/j.dyepig.2025.112805

Lingling Li , Zewen Zhai , Wenjing Zhang, Shuai Lu, Bing Song, Xue-Mei Zhao, Xinju Zhu, Xin-Qi Hao

Five novel tetraphenylethylene-based donor-acceptor (D-A) fluorescent luminogens TPE-1-5 were designed and synthesized. All five molecules exhibit solvatochromism and aggregation-induced emission (AIE) behavior with bright tunable emission colors in the solid state. Importantly, TPE-1 and TPE-2 display red-shifted mechanofluorochromic (MFC) properties under external force, which can be converted to the original state upon fumigation of dichloromethane. According to powder X-ray diffraction (PXRD) analysis, the MFC phenomena are related with crystalline-to-crystalline phase transition. Their emission behavior were further investigated by density functional theory (DFT) calculations and singly crystal X-ray analysis (XRD), which clearly demonstrates that TPE-1-5 adopt highly twisted conformational structures with intrinsic intramolecular charge transfer (ICT) properties. Moreover, TPE-5 demonstrates fluorescence sensing capability for both Fe²⁺ and Fe³⁺ with high sensitivity and anti-interference performance.

{"title":"Tetraphenylethylene-based aggregation-induced emission luminogens with mechanofluorochromism and Fe2+/Fe3+ detection applications","authors":"Lingling Li , Zewen Zhai , Wenjing Zhang, Shuai Lu, Bing Song, Xue-Mei Zhao, Xinju Zhu, Xin-Qi Hao","doi":"10.1016/j.dyepig.2025.112805","DOIUrl":"10.1016/j.dyepig.2025.112805","url":null,"abstract":"<div><div>Five novel tetraphenylethylene-based donor-acceptor (D-A) fluorescent luminogens <strong>TPE-1</strong>-<strong>5</strong> were designed and synthesized. All five molecules exhibit solvatochromism and aggregation-induced emission (AIE) behavior with bright tunable emission colors in the solid state. Importantly, <strong>TPE-1</strong> and <strong>TPE-2</strong> display red-shifted mechanofluorochromic (MFC) properties under external force, which can be converted to the original state upon fumigation of dichloromethane. According to powder X-ray diffraction (PXRD) analysis, the MFC phenomena are related with crystalline-to-crystalline phase transition. Their emission behavior were further investigated by density functional theory (DFT) calculations and singly crystal X-ray analysis (XRD), which clearly demonstrates that <strong>TPE-1</strong>-<strong>5</strong> adopt highly twisted conformational structures with intrinsic intramolecular charge transfer (ICT) properties. Moreover, <strong>TPE-5</strong> demonstrates fluorescence sensing capability for both Fe<sup>2+</sup> and Fe<sup>3+</sup> with high sensitivity and anti-interference performance.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112805"},"PeriodicalIF":4.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790926","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

The preparation and characterization of a novel ADP sensor based on dipicolylamine-copper(II)/phenylboronic-acid modified cyclodextrin inclusion complex

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-02 DOI: 10.1016/j.dyepig.2025.112798

Masaki Ishida , Shoji Fujiwara , Kyohei Tsutsumi , Shohei Minagawa , Yuji Tsuchido , Takeshi Hashimoto , Takashi Hayashita

We designed a supramolecular complex consisting of a dipicolylamine copper complex with an azobenzene group and phenylboronic acid-modified cyclodextrin for adenosine 5′-diphosphate (ADP) recognition in water. Evaluating its phosphate recognition ability through UV–vis and induced circular dichroism spectroscopy demonstrated high selectivity and a large binding constant for ADP in water. Further investigation into the recognition mechanism suggested that the high sensitivity is due to the formation of a supramolecular complex through a combination of four weak interactions.

引用次数: 0

Advancing the field of colored and emissive materials: 6th IC3EM, Unveils the future and Evolution 推动彩色和发射材料领域的发展：第六届 IC3EM，揭示未来与发展

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-02 DOI: 10.1016/j.dyepig.2025.112794

Carlos Lodeiro , José Luis Capelo-Martínez

引用次数: 0

Multicolor-emitting fluorescent hydrogels based on asymmetric diaryldibenzofulvenes as the ion-responsive switching

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-02 DOI: 10.1016/j.dyepig.2025.112797

Qiu Jin , Renping Zeng , Xinghang Chen , Zi You , Weibin Bai , Huanping Yang

Fluorescent hydrogels have been widely used in many fields due to their unique luminescent properties and good physical and chemical properties. Due to the different substitution points of naphthyl groups, two asymmetric naphthyl-substituted diaryldibenzofulvenes of NPF were prepared through the Suzuki reaction, exhibiting good aggregation induced emission (AIE) performance. Among them, the product of NPF-1 showed cyan fluorescence. The emission of NPF-2 ranged from cyan to yellow green with increasing water content in THF/water solutions. The two AIE compounds were added into the polyacrylamide hydrogels though physical blending method. By adjusting the oil/water ratio and NPF contents, the different fluorescence emission could be achieved from the prepared fluorescent hydrogels. The NPF-1 based hydrogels emitted cyan light, while 2-NPF based hydrogels displayed a shifted emission from cyan to yellow green fluorescence. The NPF hydrogels showed fluorescence emission change response to the specific ions (Fe³⁺, Co²⁺), due to the weak cross-linking between ions and hydrogel matrix. Meanwhile, the weak interaction could be unlocked by H⁺ in HCl solution, which restored the fluorescence properties of the NPF hydrogels, thereby demonstrating excellent switch response cycle stability. The design combination patterns of NPF FL hydrogels and the fluorescent switching behaviors triggered by ion/H⁺ could be applied in anti-counterfeiting and decryption. Thereby, the multicolor-emitting fluorescent NPF hydrogels with unique ion switch response display the potential in applications in information storage, information recognition, information encryption, and other areas.

{"title":"Multicolor-emitting fluorescent hydrogels based on asymmetric diaryldibenzofulvenes as the ion-responsive switching","authors":"Qiu Jin , Renping Zeng , Xinghang Chen , Zi You , Weibin Bai , Huanping Yang","doi":"10.1016/j.dyepig.2025.112797","DOIUrl":"10.1016/j.dyepig.2025.112797","url":null,"abstract":"<div><div>Fluorescent hydrogels have been widely used in many fields due to their unique luminescent properties and good physical and chemical properties. Due to the different substitution points of naphthyl groups, two asymmetric naphthyl-substituted diaryldibenzofulvenes of NPF were prepared through the Suzuki reaction, exhibiting good aggregation induced emission (AIE) performance. Among them, the product of NPF-1 showed cyan fluorescence. The emission of NPF-2 ranged from cyan to yellow green with increasing water content in THF/water solutions. The two AIE compounds were added into the polyacrylamide hydrogels though physical blending method. By adjusting the oil/water ratio and NPF contents, the different fluorescence emission could be achieved from the prepared fluorescent hydrogels. The NPF-1 based hydrogels emitted cyan light, while 2-NPF based hydrogels displayed a shifted emission from cyan to yellow green fluorescence. The NPF hydrogels showed fluorescence emission change response to the specific ions (Fe<sup>3+</sup>, Co<sup>2+</sup>), due to the weak cross-linking between ions and hydrogel matrix. Meanwhile, the weak interaction could be unlocked by H<sup>+</sup> in HCl solution, which restored the fluorescence properties of the NPF hydrogels, thereby demonstrating excellent switch response cycle stability. The design combination patterns of NPF FL hydrogels and the fluorescent switching behaviors triggered by ion/H<sup>+</sup> could be applied in anti-counterfeiting and decryption. Thereby, the multicolor-emitting fluorescent NPF hydrogels with unique ion switch response display the potential in applications in information storage, information recognition, information encryption, and other areas.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112797"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776507","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

Achieving room-temperature phosphorescence of coumarin derivatives by hydrogen-bonding networks and multicolor superfluorescence by resonance energy transfer

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-02 DOI: 10.1016/j.dyepig.2025.112765

Hua Feng , Mingyue Dong , Zhiqiang Yang , Bing Yang , Fushun Liang , Zhongmin Su

Room-temperature phosphorescence (RTP) materials hold promise for applications in bioimaging, anti-counterfeiting, and optoelectronics, yet the design of purely organic RTP materials remains challenging due to significant non-radiative deactivation pathways. This study demonstrates a hydrogen-bonding strategy to suppress non-radiative transitions. Photophysical characterizations revealed that CCA/PAA exhibits green afterglow with a lifetime of 374 ms, while the BrCCA/PAA film achieved an enhanced quantum yield of 27.88 % due to the heavy-atom effect of the bromine. Further, by incorporating fluorescent dyes into CCA/PAA, multicolor Superfluorescence was achieved through triplet-to-singlet resonance energy transfer. These findings demonstrated the capability to tune afterglow colors and lifetimes by varying the doping ratios and energy acceptor types. This work not only provides insights into the role of hydrogen bonding and heavy-atom effects in RTP materials but also offers a pathway for designing advanced optical materials with tunable and high-performance characteristics.

{"title":"Achieving room-temperature phosphorescence of coumarin derivatives by hydrogen-bonding networks and multicolor superfluorescence by resonance energy transfer","authors":"Hua Feng , Mingyue Dong , Zhiqiang Yang , Bing Yang , Fushun Liang , Zhongmin Su","doi":"10.1016/j.dyepig.2025.112765","DOIUrl":"10.1016/j.dyepig.2025.112765","url":null,"abstract":"<div><div>Room-temperature phosphorescence (RTP) materials hold promise for applications in bioimaging, anti-counterfeiting, and optoelectronics, yet the design of purely organic RTP materials remains challenging due to significant non-radiative deactivation pathways. This study demonstrates a hydrogen-bonding strategy to suppress non-radiative transitions. Photophysical characterizations revealed that CCA/PAA exhibits green afterglow with a lifetime of 374 ms, while the BrCCA/PAA film achieved an enhanced quantum yield of 27.88 % due to the heavy-atom effect of the bromine. Further, by incorporating fluorescent dyes into CCA/PAA, multicolor Superfluorescence was achieved through triplet-to-singlet resonance energy transfer. These findings demonstrated the capability to tune afterglow colors and lifetimes by varying the doping ratios and energy acceptor types. This work not only provides insights into the role of hydrogen bonding and heavy-atom effects in RTP materials but also offers a pathway for designing advanced optical materials with tunable and high-performance characteristics.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112765"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816103","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

High-efficiency and Low Roll-Off Red Phosphorescent Organic Light-emitting Diodes Enabled by Phenanthridine-based Bipolar Host Materials

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-02 DOI: 10.1016/j.dyepig.2025.112796

Hye Yeon Park , Jooho Lee , Chul Woong Joo , Hyunjun Jang , Ye ji Hyeon , Baeksang Sung , Hyunji Park , Jinhwa Kim , Soon-Ki Kwon , Jonghee Lee , Yun-Hi Kim

In this study, we report the synthesis of two host materials for high-efficiency and highly stable organic light-emitting diodes (OLEDs): 3-[4’-(triphenylsilyl)phenyl)-9H-carbazole]-6-phenylbenzofuro [3,2-k]phenanthridine (BF-PTD-SiCz) and 3-[4’-(triphenylsilyl)phenyl)-9H-carbazole]-6-phenylbenzo [4,5]thieno [3,2-k]phenanthridine (BT-PTD-SiCz). These phenanthridine-based bipolar host materials were synthesized via Ullman and Suzuki coupling reactions, reduction, nucleophilic acyl substitution, and reductive cyclization. Both materials exhibited excellent thermal stability. Red phosphorescent OLEDs (PhOLEDs) fabricated using BF-PTD-SiCz and BT-PTD-SiCz as hosts demonstrated improved roll-off characteristics compared to those of PhOLEDs that employed the conventional 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP) host. In particular, the BF-PTD-SiCz-based device exhibited an external quantum efficiency (EQE) of 13.86 %. These results indicate that BF-PTD-SiCz and BT-PTD-SiCz are well suited for use in high-efficiency red PhOLEDs.

{"title":"High-efficiency and Low Roll-Off Red Phosphorescent Organic Light-emitting Diodes Enabled by Phenanthridine-based Bipolar Host Materials","authors":"Hye Yeon Park , Jooho Lee , Chul Woong Joo , Hyunjun Jang , Ye ji Hyeon , Baeksang Sung , Hyunji Park , Jinhwa Kim , Soon-Ki Kwon , Jonghee Lee , Yun-Hi Kim","doi":"10.1016/j.dyepig.2025.112796","DOIUrl":"10.1016/j.dyepig.2025.112796","url":null,"abstract":"<div><div>In this study, we report the synthesis of two host materials for high-efficiency and highly stable organic light-emitting diodes (OLEDs): 3-[4’-(triphenylsilyl)phenyl)-9H-carbazole]-6-phenylbenzofuro [3,2-k]phenanthridine (BF-PTD-SiCz) and 3-[4’-(triphenylsilyl)phenyl)-9H-carbazole]-6-phenylbenzo [4,5]thieno [3,2-k]phenanthridine (BT-PTD-SiCz). These phenanthridine-based bipolar host materials were synthesized via Ullman and Suzuki coupling reactions, reduction, nucleophilic acyl substitution, and reductive cyclization. Both materials exhibited excellent thermal stability. Red phosphorescent OLEDs (PhOLEDs) fabricated using BF-PTD-SiCz and BT-PTD-SiCz as hosts demonstrated improved roll-off characteristics compared to those of PhOLEDs that employed the conventional 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP) host. In particular, the BF-PTD-SiCz-based device exhibited an external quantum efficiency (EQE) of 13.86 %. These results indicate that BF-PTD-SiCz and BT-PTD-SiCz are well suited for use in high-efficiency red PhOLEDs.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112796"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800159","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

Effective UV and blue light blocking filters with high visible transparency utilizing graphene quantum dots

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-02 DOI: 10.1016/j.dyepig.2025.112802

F.S. Abd El-kawy , S. Hammad , H. Talaat , M. Ghali

In the current technological era, our eyes suffer serious diseases as a consequence of exposure to ultraviolet and blue radiation from light-emitting devices. Accordingly, the development of materials with effective absorption abilities for UV and blue light is in high demand. Here, we report the synthesis of graphene quantum dots (GQDs) from Moringa oleifera leaves utilizing the hydrothermal technique. Different amounts from the prepared GQDs solution were added to the Poly(vinyl) alcohol (PVA) to fabricate UV and blue light-blocking films with concentrations of (0, 3, 5, 7, 9, 10 %). These films were examined to explore their blocking potential. Interestingly, the data demonstrate that GQDs/PVA films can block up to 97.68 % and 96.21 % of harmful UV and blue light, respectively, with transmittance greater than 70 % in the visible regions (>600 nm). Further, the films were applied to WLED commercial lamps, and it was found that with increasing GQD concentrations, the blue region decreased with a blocking ratio of up to 91.38 %, and the LED light was changed from cool (6310 K) to warm (3300 K) white LEDs. These results prove that the sustainably fabricated GQDs films have strong down photoconversion ability and remarkable absorption in the UV and blue light regions.

{"title":"Effective UV and blue light blocking filters with high visible transparency utilizing graphene quantum dots","authors":"F.S. Abd El-kawy , S. Hammad , H. Talaat , M. Ghali","doi":"10.1016/j.dyepig.2025.112802","DOIUrl":"10.1016/j.dyepig.2025.112802","url":null,"abstract":"<div><div>In the current technological era, our eyes suffer serious diseases as a consequence of exposure to ultraviolet and blue radiation from light-emitting devices. Accordingly, the development of materials with effective absorption abilities for UV and blue light is in high demand. Here, we report the synthesis of graphene quantum dots (GQDs) from Moringa oleifera leaves utilizing the hydrothermal technique. Different amounts from the prepared GQDs solution were added to the Poly(vinyl) alcohol (PVA) to fabricate UV and blue light-blocking films with concentrations of (0, 3, 5, 7, 9, 10 %). These films were examined to explore their blocking potential. Interestingly, the data demonstrate that GQDs/PVA films can block up to 97.68 % and 96.21 % of harmful UV and blue light, respectively, with transmittance greater than 70 % in the visible regions (>600 nm). Further, the films were applied to WLED commercial lamps, and it was found that with increasing GQD concentrations, the blue region decreased with a blocking ratio of up to 91.38 %, and the LED light was changed from cool (6310 K) to warm (3300 K) white LEDs. These results prove that the sustainably fabricated GQDs films have strong down photoconversion ability and remarkable absorption in the UV and blue light regions.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112802"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800153","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

Realization of bright deep-red aqueous luminescence from chlorophyll-derived CDs with hydrophilic modification for imaging application

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-01 DOI: 10.1016/j.dyepig.2025.112799

Jiahui Zhang , Wenjing Huang , Lie Li , Linyun Zeng , Chunli Li , Qiyu Zhan , Ruiyuan Liu , Jialiang Pan , Jinqing Huang , Wei Liu , Xinguo Zhang

Chlorophyll-derived carbon dots (CDs) with strong deep red emission is an ideal candidate for high-quality bio-imaging in the NIR window. However, its low aqueous dispersity with severe emission quenching has limited its biological application. Herein, chlorophyll-derived CDs from mulberry leaf (MCDs) have been successfully coated with polyethylenimine (PEI) via a simple and mild solution-mixing method at room temperature. Experimental optimization proved that the MCDs produced at a reaction temperature of 120 °C and a reaction time of 4 h had the best PL strength, while the PEI-MCDs produced at a PEI/CDs ratio of 0.4 ‰ had the best PL strength. The PEI-MCDs composites demonstrate good aqueous dispersity and exceptional fluorescence stability under various conditions like UV irradiation, temperature fluctuations, salt and various substances. A strong narrow-band deep-red emission at 670 nm with quantum yield (QY) of 45.44 % is obtained in PEI-MCDs aqueous solution. The mechanism of lipophilic-hydrophilic transformation and emission recovery in aqueous solution is confirmed to be the amphiphilicity shell of PEI on MCDs, which effectively improves the aqueous dispersity and suppresses the occurrence of aggregation-caused quenching. Selective imaging of lysosomes in various cells has been realized by utilized PEI-MCDs without targeting ligands. Furthermore, clear tissue structures were shown in the in vivo fluorescence imaging of zebrafish embryos and larvae. The results indicate PEI-MCDs own notable amphiphilicity, superior stability and excellent deep-red emission, which hold great promise for biological imaging applications.

{"title":"Realization of bright deep-red aqueous luminescence from chlorophyll-derived CDs with hydrophilic modification for imaging application","authors":"Jiahui Zhang , Wenjing Huang , Lie Li , Linyun Zeng , Chunli Li , Qiyu Zhan , Ruiyuan Liu , Jialiang Pan , Jinqing Huang , Wei Liu , Xinguo Zhang","doi":"10.1016/j.dyepig.2025.112799","DOIUrl":"10.1016/j.dyepig.2025.112799","url":null,"abstract":"<div><div>Chlorophyll-derived carbon dots (CDs) with strong deep red emission is an ideal candidate for high-quality bio-imaging in the NIR window. However, its low aqueous dispersity with severe emission quenching has limited its biological application. Herein, chlorophyll-derived CDs from mulberry leaf (MCDs) have been successfully coated with polyethylenimine (PEI) via a simple and mild solution-mixing method at room temperature. Experimental optimization proved that the MCDs produced at a reaction temperature of 120 °C and a reaction time of 4 h had the best PL strength, while the PEI-MCDs produced at a PEI/CDs ratio of 0.4 ‰ had the best PL strength. The PEI-MCDs composites demonstrate good aqueous dispersity and exceptional fluorescence stability under various conditions like UV irradiation, temperature fluctuations, salt and various substances. A strong narrow-band deep-red emission at 670 nm with quantum yield (QY) of 45.44 % is obtained in PEI-MCDs aqueous solution. The mechanism of lipophilic-hydrophilic transformation and emission recovery in aqueous solution is confirmed to be the amphiphilicity shell of PEI on MCDs, which effectively improves the aqueous dispersity and suppresses the occurrence of aggregation-caused quenching. Selective imaging of lysosomes in various cells has been realized by utilized PEI-MCDs without targeting ligands. Furthermore, clear tissue structures were shown in the in vivo fluorescence imaging of zebrafish embryos and larvae. The results indicate PEI-MCDs own notable amphiphilicity, superior stability and excellent deep-red emission, which hold great promise for biological imaging applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112799"},"PeriodicalIF":4.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768686","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

Development of aryl 2-pyridinone-fused 2-pyrimidone as a TICT-based turn-off fluorescent probe for ultra-low pH sensing

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments

Pub Date : 2025-04-01 DOI: 10.1016/j.dyepig.2025.112795

Chen Zhu , Jinfeng Zhang , Tianxing Li, Hui Jin, Lixin Zhang

An aryl 2-pyridinone-fused 2-pyrimidone, PPDO, was developed as a TICT-based fluorescent probe for detecting extreme acidity within a narrow pH range (from pH 2.5 to 1.0). Upon the addition of HCl, PPDO exhibits fluorescence quenching at 480 nm. Density functional theory (DFT) calculations and ¹H NMR spectroscopy reveal that the detection mechanism is probably governed by an enhanced electron push-pull effect and increased steric hindrance, which modulate the TICT process. This probe offers several advantages, including a large Stokes shift, high sensitivity, excellent selectivity, and rapid response time.

引用次数: 0

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Dyes and Pigments

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