Dyes and Pigments最新文献

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Recent advances in fluorescent probes for bioimaging lipid droplets associated diseases
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-31 DOI: 10.1016/j.dyepig.2025.112792
Wenli Jiang , Kexin Du , Jing Zhang , Caiyun Li , Jinhui Feng , Chun-Yan Li
{"title":"Recent advances in fluorescent probes for bioimaging lipid droplets associated diseases","authors":"Wenli Jiang ,&nbsp;Kexin Du ,&nbsp;Jing Zhang ,&nbsp;Caiyun Li ,&nbsp;Jinhui Feng ,&nbsp;Chun-Yan Li","doi":"10.1016/j.dyepig.2025.112792","DOIUrl":"10.1016/j.dyepig.2025.112792","url":null,"abstract":"<div><div>Lipid droplets (LDs) are essential intracellular lipid storage depots, playing critical roles in various physiological and pathological processes. LD-related diseases, such as fatty liver disease, atherosclerosis, and cancer, are increasingly becoming global health concerns. Developing powerful tools for imaging LDs is crucial for understanding the mechanisms of these diseases and for developing effective diagnostic and therapeutic strategies. In recent years, organic small-molecule fluorescent probes have gained widespread application in LD imaging due to their simple structure, ease of operation, and good biocompatibility. This review summarizes recent advances in organic small-molecule fluorescent probes for bioimaging LD-related diseases, focusing on design strategies, optical properties, biological applications, and current challenges. Furthermore, we discuss future directions in this field, including the development of novel probes with higher specificity, sensitivity, in vivo stability, and deep tissue penetration capabilities. It is anticipated that with continuous improvements in probe design strategies and synthetic techniques, organic small-molecule fluorescent probes will play an increasingly important role in LD research.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112792"},"PeriodicalIF":4.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758965","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
Construction of phenanthro[9,10-d]oxazole-based “hot exciton” AIEgens via molecular isomer engineering for efficient blue non-doped OLEDs
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-29 DOI: 10.1016/j.dyepig.2025.112790
Hao-Sen Liao , Bao-Yue Wang , Dong Chen , Yi-Ming Cao , Ruo-Tong Zhao , Hai-jun Chi , Yan-Li Lv , Bo Zhao , Xiao Li
{"title":"Construction of phenanthro[9,10-d]oxazole-based “hot exciton” AIEgens via molecular isomer engineering for efficient blue non-doped OLEDs","authors":"Hao-Sen Liao ,&nbsp;Bao-Yue Wang ,&nbsp;Dong Chen ,&nbsp;Yi-Ming Cao ,&nbsp;Ruo-Tong Zhao ,&nbsp;Hai-jun Chi ,&nbsp;Yan-Li Lv ,&nbsp;Bo Zhao ,&nbsp;Xiao Li","doi":"10.1016/j.dyepig.2025.112790","DOIUrl":"10.1016/j.dyepig.2025.112790","url":null,"abstract":"<div><div>“Hot exciton” materials with aggregation-induced emission (AIE) properties have tremendous potential for application in high-performance blue non-doped organic light-emitting diodes (OLEDs). In this study, two novel blue fluorophores <strong>POT-1</strong> and <strong>POT-2</strong> were designed and synthesized by molecular isomer engineering. In two molecules, phenanthro [9,10-<em>d</em>]oxazole/triphenylamine acted as acceptor/donor, and triphenylethylene was used as the AIE-active moieties. Both fluorophores displayed excellent thermal properties and blue emissions with decent fluorescence efficiencies. Theoretical calculations proved that <strong>POT-1</strong> and <strong>POT-2</strong> possessed hybrid local and charge transfer (HLCT) properties with the “hot exciton” channels from T<sub>3</sub>/T<sub>4</sub> to S<sub>1</sub>. Additionally, <strong>POT-1</strong> and <strong>POT-2</strong> also exhibited AIE and mechanochromism effects, especially <strong>POT-1</strong> showed a large redshift of 62 nm after grinding. The blue non-doped OLEDs based on the two emitters were prepared and the <strong>POT-2</strong>-based device demonstrated better performances of 9.48 cd A<sup>−1</sup>, 8.27 lm W<sup>−1</sup> and 4.77 %. These results indicate the feasibility of molecular design via positional isomerization engineering to develop blue AIEgens with HLCT characteristics.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112790"},"PeriodicalIF":4.1,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758964","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 carrier-free rigid fluorescent small molecule CF3/S-containing BODIPY probe: Design and synthesis, tumor cell imaging and biological activity evaluation
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-29 DOI: 10.1016/j.dyepig.2025.112791
Zhenning Wang , Pei Su , Mengtong Zhang , Tiantian Chai , Shuo Wang , Jiankang Feng , Chichong Lu , Guofan Jin
{"title":"A carrier-free rigid fluorescent small molecule CF3/S-containing BODIPY probe: Design and synthesis, tumor cell imaging and biological activity evaluation","authors":"Zhenning Wang ,&nbsp;Pei Su ,&nbsp;Mengtong Zhang ,&nbsp;Tiantian Chai ,&nbsp;Shuo Wang ,&nbsp;Jiankang Feng ,&nbsp;Chichong Lu ,&nbsp;Guofan Jin","doi":"10.1016/j.dyepig.2025.112791","DOIUrl":"10.1016/j.dyepig.2025.112791","url":null,"abstract":"<div><div>Excellent photophysical characteristics and structural modifiability characterize BODIPY fluorescent probes. In this study, A carrier-free rigid fluorescent small molecule CF<sub>3</sub>/S-containing BODIPY probe (BODIPY-CF<sub>3</sub>/S) was designed and synthesized by introducing benzothiophene groups and trifluoromethane groups into the probe structure. By using the benzene ring large conjugate system to modify the parent structure of BODIPY, a rigid conjugate structure with large π-bonds was formed, improving the photophysical characteristics, increasing the fluorescence wavelength, and improving the intensity and stability of the fluorescence emission. The introduction of benzene ring system and trifluoromethane group makes the probe have good fat solubility. Solvent evaporation was used to create single crystals, and the rigid large conjugate structure of the crystals was seen. Following testing, the probe's photophysical characteristics at various pH values held up well and were largely stable. The BODIPY-CF<sub>3</sub>/S fluorescent marker exhibits good biocompatibility with both HCT-116 and HeLa tumor cells, and can enter the cell interior without any carrier due to its excellent fat solubility. Its ability to emit a distinct green fluorescent signal makes it useful for follow-up observation and visualization. As such, it has potential applications as a fluorescent marker. In addition, in vitro cytotoxicity studies, the probe showed good inhibition on A549 cancer cells and HCT-116 cancer cells. In summary, the prepared BODIPY-CF<sub>3</sub>/S fluorescent probe has the advantages of long wavelength, strong conjugation stability, good photophysical quality, no carrier and strong fat solubility. These attributes will give researchers and designers of BODIPY rigid conjugated fluorescent probes new ideas for their future research and development.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112791"},"PeriodicalIF":4.1,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739094","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
Natural anthocyanin-based wearable colorimetric pH indicator with high color fastness
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-28 DOI: 10.1016/j.dyepig.2025.112789
Wenbin Zhu , Zemin Ma , Liwen Zhang , Chunbing Yang , Fujun Xu , Jiangyong Yu
{"title":"Natural anthocyanin-based wearable colorimetric pH indicator with high color fastness","authors":"Wenbin Zhu ,&nbsp;Zemin Ma ,&nbsp;Liwen Zhang ,&nbsp;Chunbing Yang ,&nbsp;Fujun Xu ,&nbsp;Jiangyong Yu","doi":"10.1016/j.dyepig.2025.112789","DOIUrl":"10.1016/j.dyepig.2025.112789","url":null,"abstract":"<div><div>Smart textiles with real-time visual monitoring abilities of environmental pH hold significant importance in wearable products. Natural dyes have gained growing interest as eco-friendly pH indicators, however, their stability and large-scale isolation remain challenging. In this work, we developed a type of pH-monitoring colorimetric indicator based on anthocyanins, a natural dye extracted from red cabbage, with enhanced affinity to cotton fiber substrates by utilizing metal salts and biopolymers. Compared to cotton fabric directly dyed with pristine anthocyanins, this colorimetric fabric demonstrates higher color contrast, superior reversibility of color change, and enhanced light and washing color fastness. The color strength (K/S) was significantly improved from 0.136 for untreated fabric to 1.266 for colorimetric fabric, and the excellent colorimetric properties maintained either after over 20 h washing or 12 h exposure to sunlight. This work addressed the issue of the easy light degradation of biomaterials, and provided a feasible optimization strategy for the development and application of environment-responsive biomass colorimetric textiles as smart and wearable products.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112789"},"PeriodicalIF":4.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746639","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 biodegradable and biocompatibile polymer-shell to develop a H2S sensing device
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-26 DOI: 10.1016/j.dyepig.2025.112786
Alessio Trerotola , Paola Rizzo , Angela Erbaggio , Viktoriia Vykhovanets , Alessandro Landi , Marina Lamberti , Carmine di Fiore , Claudio Pellecchia , Maria Strianese
{"title":"A biodegradable and biocompatibile polymer-shell to develop a H2S sensing device","authors":"Alessio Trerotola ,&nbsp;Paola Rizzo ,&nbsp;Angela Erbaggio ,&nbsp;Viktoriia Vykhovanets ,&nbsp;Alessandro Landi ,&nbsp;Marina Lamberti ,&nbsp;Carmine di Fiore ,&nbsp;Claudio Pellecchia ,&nbsp;Maria Strianese","doi":"10.1016/j.dyepig.2025.112786","DOIUrl":"10.1016/j.dyepig.2025.112786","url":null,"abstract":"<div><div>In this contribution we report a new family of fluorescent complexes suitable as H<sub>2</sub>S sensors: their structural common unit is the pyridine group within the Zn-chelating ligands. Structures containing pyridines with other π-conjugated motifs represent easily accessible fluorescent materials with excellent optical properties. The successful adsorption of the developed sensors in a biocompatible and biodegradable polymer, such as Poly(butylene succinate) (PBS), provides proof-of-principle for the application of the new materials in the field of H<sub>2</sub>S (bio) sensing and more in general of the optical sensing.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112786"},"PeriodicalIF":4.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the potential of silicon-containing binders in pigment-based inkjet inks for hydrophilic substrate applications
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-26 DOI: 10.1016/j.dyepig.2025.112787
Gyuseop Moon , Kwan Hyun Cho , Youngwook Noh , Dah Hee Kim , Jeong Il Ko , Chun Yoon , Jun Choi
{"title":"Exploring the potential of silicon-containing binders in pigment-based inkjet inks for hydrophilic substrate applications","authors":"Gyuseop Moon ,&nbsp;Kwan Hyun Cho ,&nbsp;Youngwook Noh ,&nbsp;Dah Hee Kim ,&nbsp;Jeong Il Ko ,&nbsp;Chun Yoon ,&nbsp;Jun Choi","doi":"10.1016/j.dyepig.2025.112787","DOIUrl":"10.1016/j.dyepig.2025.112787","url":null,"abstract":"<div><div>We synthesized two types of silicon-containing binders for pigment-based inkjet inks for printing on hydrophilic substrates. The two types of silicon-containing binder molecules, with either linear or cage structures, were synthesized in solution. These binders were then formulated with organic pigment mill-bases to produce the water-based inkjet inks. We measured the physical and rheological properties of the prepared inks and found that it demonstrated better performance compared to traditional polymer emulsion binders on hydrophilic substrate such as glass via tests for scratch resistance, adhesion, and long-term stability. Ink jetting stability tests revealed that the prepared silicon-containing binder inks formed uniform droplets without satellite droplets. The dot pattern printing tests on silicon wafers showed that the dots were evenly shaped, sized, and spaced. This study confirmed that using the silicon-containing binder inkjet inks not only provides excellent durability on hydrophilic surface but also shows sufficient potential for inkjet printing applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112787"},"PeriodicalIF":4.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739095","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
Imidazolium salt end-capped arylene diimides for good solubility, low driving voltage and excellent cycling stability in semi-solid hydrogel-state electrochromic devices
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-25 DOI: 10.1016/j.dyepig.2025.112784
Ye Wu, Zhi-hao Cui, Jia-hao Guo, Rui-jie Qin, Hao Zhang, Wei Shen, Cheng-bin Gong, Qian Tang
{"title":"Imidazolium salt end-capped arylene diimides for good solubility, low driving voltage and excellent cycling stability in semi-solid hydrogel-state electrochromic devices","authors":"Ye Wu,&nbsp;Zhi-hao Cui,&nbsp;Jia-hao Guo,&nbsp;Rui-jie Qin,&nbsp;Hao Zhang,&nbsp;Wei Shen,&nbsp;Cheng-bin Gong,&nbsp;Qian Tang","doi":"10.1016/j.dyepig.2025.112784","DOIUrl":"10.1016/j.dyepig.2025.112784","url":null,"abstract":"<div><div>Arylene diimide derivatives possess good redox activity owing to their rigid planar conjugated structure and strong electron-deficient aromatic nuclei, but poor solubility and high working voltage limit their practical applications in electrochromic field. In this paper, benzene and naphthalene-based arylene diimides end-capped with imidazolium salts, <strong>PMDI-<em>M</em>-C4</strong> and <strong>NDI-<em>M</em>-C4</strong>, were synthesized and used as the electrochromic materials in both solution- and semi-solid hydrogel-state electrochromic devices. The introduction of imidazolium salts greatly improved their solubility in polar solvents including water, methanol, dimethyl sulfoxide, etc. In solution-state electrochromic devices, both of them showed a moderate working voltage, high optical contrasts (&gt;50 %), high coloration efficiencies (&gt;300 cm<sup>2</sup>/C), fast switching times (&lt;2 s) and good cycling stability. They showed different colored state due to different aromatic cores, and <strong>NDI-<em>M</em>-C4</strong> with a larger conjugation degree core of naphthalene exhibited better cycling stability. In semi-solid carboxymethyl cellulose sodium hydrogel-state electrochromic devices, similar colored states were observed whereas the working voltage was markedly reduced. It's noteworthy that semi-solid hydrogel-state electrochromic device based on <strong>NDI-<em>M</em>-C4</strong> performed best with the lowest working voltage of −0.8 V, a high optical contrast of 48.3 %, the best cycling stability and satisfactory coloration efficiency. Finally, the applications of the semi-solid hydrogel-state electrochromic devices in various electronic displays were demonstrated, and its design concept and successful exploration have widely promising applications in displays, adaptive camouflage, bionics, and so on.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112784"},"PeriodicalIF":4.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704704","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
Molecular engineering of carbazole and acridine based hole transport materials for perovskite solar cells
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-24 DOI: 10.1016/j.dyepig.2025.112783
Jingjing Zhao, Licheng Liu, Mengde Zhai, Cheng Chen, Haoxin Wang, Ziyang Xia, Yi Tian, Li Guo, Ming Cheng
{"title":"Molecular engineering of carbazole and acridine based hole transport materials for perovskite solar cells","authors":"Jingjing Zhao,&nbsp;Licheng Liu,&nbsp;Mengde Zhai,&nbsp;Cheng Chen,&nbsp;Haoxin Wang,&nbsp;Ziyang Xia,&nbsp;Yi Tian,&nbsp;Li Guo,&nbsp;Ming Cheng","doi":"10.1016/j.dyepig.2025.112783","DOIUrl":"10.1016/j.dyepig.2025.112783","url":null,"abstract":"<div><div>The development of novel hole transport materials represents a straightforward and innovative approach to enhancing the performance of perovskite solar cells (PSCs). In this paper, three hole transport materials (HTMs), <strong>D-CZ</strong>, <strong>D-ACR</strong> and <strong>ACR-CZ</strong>, are designed and synthesized through molecular engineering. The alteration of π-bridges in the three molecules resulted in changes in energy levels, which in turn affected their performance. The PSCs using carbazole and acridine based asymmetric structured material <strong>ACR-CZ</strong> as HTM obtain the highest efficiency of 24.2 % under 100 mW cm<sup>−2</sup> AM 1.5G solar illumination.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112783"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725714","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
Efficient near-room-temperature synthesis of thiophene-vinyl-flanked diketopyrrolopyrrole dye-based mesopolymers for high-performance organic field-effect transistors
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-24 DOI: 10.1016/j.dyepig.2025.112782
Jinyang Chen , Wenkang Shi , Ruifang Meng , Minfeng Zeng , Yue Zhao , Tingwei Huang , Shiwei Ren
{"title":"Efficient near-room-temperature synthesis of thiophene-vinyl-flanked diketopyrrolopyrrole dye-based mesopolymers for high-performance organic field-effect transistors","authors":"Jinyang Chen ,&nbsp;Wenkang Shi ,&nbsp;Ruifang Meng ,&nbsp;Minfeng Zeng ,&nbsp;Yue Zhao ,&nbsp;Tingwei Huang ,&nbsp;Shiwei Ren","doi":"10.1016/j.dyepig.2025.112782","DOIUrl":"10.1016/j.dyepig.2025.112782","url":null,"abstract":"<div><div>Two thiophene-vinyl-diketopyrrolopyrrole (TVDPP)-dye-based mesopolymers, PTVDPP-TT and PTVDPP-BT, were synthesized under near-room-temperature conditions. These mesopolymers exhibit non-halogenated solution processability, high molecular coplanarity, narrow bandgaps (approx. 1.2 eV), short π-stacking distances (&lt;3.6 Å), and excellent crystallinity. They demonstrate high hole mobilities of 0.83 and 0.93 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>, respectively, for optoelectronic applications in field-effect transistors.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112782"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725713","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
Design and synthesis of quadrupolar A-D-A photon absorbing molecules: An investigation into their optical and bioimaging properties
IF 4.1 3区 工程技术
Dyes and Pigments Pub Date : 2025-03-24 DOI: 10.1016/j.dyepig.2025.112785
Shufan Yang , Konstantinos Bourdakos , Hiroki Cook , Anna Crisford , Ewan Forsyth , Sumeet Mahajan , Mark Bradley
{"title":"Design and synthesis of quadrupolar A-D-A photon absorbing molecules: An investigation into their optical and bioimaging properties","authors":"Shufan Yang ,&nbsp;Konstantinos Bourdakos ,&nbsp;Hiroki Cook ,&nbsp;Anna Crisford ,&nbsp;Ewan Forsyth ,&nbsp;Sumeet Mahajan ,&nbsp;Mark Bradley","doi":"10.1016/j.dyepig.2025.112785","DOIUrl":"10.1016/j.dyepig.2025.112785","url":null,"abstract":"<div><div>We herein report on the design and synthesis and optical properties of 4 novel chromophores based on a quadrupole acceptor-donor-acceptor system. These quadrupoles were designed using a fluorene core, coupled to thienyl and thienyl acetylene bridges, to either two 3-dicycanovinylindan-1-ones or two 1,3-bis(dicyanomethylidene)-indanes as strong electron-withdrawing moieties. The structure-property relationships were investigated by computational modelling and photophysical studies, with the fluorophores giving red-emission with large Stokes shifts. The bridged alkynyl units, rather than enhancing conjugation, dramatically reduced fluorescence intensities and wavelength of emission. Notably, two-photon absorption studies revealed cross-section values of δ = 1720 and 780 GM for two of the fluorophores. The fluorophores were explored in one-photon and two-photon fluorescence biological imaging, including the staining of chick bones.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112785"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725733","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
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