Dyes and Pigments最新文献_第9页

Cyano substituted stilbene-based polymers for OFETs: From p-type to n-type

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-28 DOI: 10.1016/j.dyepig.2025.112685

Kai Gao, Cheng Wang, Kaikai Liu, Haichang Zhang

{"title":"Cyano substituted stilbene-based polymers for OFETs: From p-type to n-type","authors":"Kai Gao, Cheng Wang, Kaikai Liu, Haichang Zhang","doi":"10.1016/j.dyepig.2025.112685","DOIUrl":"10.1016/j.dyepig.2025.112685","url":null,"abstract":"<div><div>The performance of n-type semiconductor materials, typically the charge transport mobility, greatly fall behind compared to those in the p-type ones, which limiting the development of the semiconductor applications. Thus, the molecular design for n-type semiconductor is both crucial and challenging. In this work, three polymers containing isoindigo and stilbene units with varying numbers of cyano-substituted were designed and applied as the semiconductor for the organic field-effect transistors (OFETs). The introduction of cyano groups transforms the stilbene from electron-rich to electron-deficient. As a consequence, the polymers transition from a donor-acceptor type (P0) to an acceptor-acceptor type (P1, P2). With an increasing number of the cyano groups, both of the HOMO and LUMO energy levels of the polymers were decreased, with P1 and P2 exhibiting particularly low LUMO energy levels (<−4.15 eV) and ultra-low HOMO levels (<−5.7 eV). Therefore, P0 exhibited p-type semiconductor behavior with the hole transport mobility of 0.40 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>, while cyano-substituted P1 and P2 displayed n-type characteristic with 0.62 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup> (P1), and 0.83 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup> (P2), respectively. In addition, the aggregation and molecular packing of the polymers in the thin film state improved with the increasing number of cyano units in the single repeat units, which facilitated interchain charge transport. Thus, P2 exhibited the highest charge transport mobility among the three polymers. This work demonstrates that introducing cyano units into the polymer backbone to synthesize an acceptor-acceptor (A-A) type polymer is a simple and effective strategy for developing n-type semiconductor materials. In addition, incorporating cyano units into the polymer backbone not only increases the electron-deficient character of the polymers and alters their charge transport properties but also might enhance charge transport mobility.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112685"},"PeriodicalIF":4.1,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167907","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

Creating a fluorescent “AND” logic gate aptamer platform for identifying exosomes derived from breast cancer subtypes

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-27 DOI: 10.1016/j.dyepig.2025.112683

Yifan Liu , Feiran Liu , Zichun Li , Xiaoling Zhang , Jing Jing

{"title":"Creating a fluorescent “AND” logic gate aptamer platform for identifying exosomes derived from breast cancer subtypes","authors":"Yifan Liu , Feiran Liu , Zichun Li , Xiaoling Zhang , Jing Jing","doi":"10.1016/j.dyepig.2025.112683","DOIUrl":"10.1016/j.dyepig.2025.112683","url":null,"abstract":"<div><div>Breast cancer is a globally prevalent malignancy, and early classification of breast cancer is beneficial for formulating accurate treatment plans and improving prognosis. In this work, we engineered an innovative dual-marker approach, capitalizing on the precision of “AND” logic gates, to precisely identify different subtypes of exosomes derived from breast cancer. We designed two distinct nucleic acid aptamers:PD-L1 (Programmed cell death-ligand 1) aptamer conjugated with Cy3, and EpCAM (Epithelial cell adhesion molecule) aptamer labeled with Cy5. The conjugation of both aptamers and specific connectors culminated in the establishment of a robust detection system. Upon successful binding to breast cancer-derived exosomes, a remarkable Förster Resonance Energy Transfer (FRET) phenomenon transpires, enabling the detection of the target exosomes. Through the optimization of the linker, we extended the application of this method to fluorescence imaging, which is capable of elucidating the interactions between exosomes and immune cells. This not only visualizes the process of exosome internalization into receptor cells but also paves the way for a novel non-invasive diagnostic strategy for breast cancer.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112683"},"PeriodicalIF":4.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167910","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

Preparation of organic pigment dispersants based on comb-shaped acrylic copolymer and their applications

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-27 DOI: 10.1016/j.dyepig.2025.112665

Tingwu Liu , Kexin Chen , Jianwei Han , Limin Wang

{"title":"Preparation of organic pigment dispersants based on comb-shaped acrylic copolymer and their applications","authors":"Tingwu Liu , Kexin Chen , Jianwei Han , Limin Wang","doi":"10.1016/j.dyepig.2025.112665","DOIUrl":"10.1016/j.dyepig.2025.112665","url":null,"abstract":"<div><div>Optimizing the structure of comb-shaped acrylic copolymers is essential for developing high-performance organic pigment dispersants in waterborne coatings. In this study, a series of copolymers composed of benzyl methacrylate (BzMA) and poly(ethylene glycol) methyl ether methacrylate (mPEGMA) was synthesized via solution polymerization, maintaining a consistent molecular weight while varying the monomer ratios. The copolymers were comprehensively characterized using gel permeation chromatography (GPC), nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) analysis. Surface properties were investigated by measuring the critical micelle concentration (CMC), micellization energy, and limiting area at the liquid-gas interface as a function of polymer concentration and surface tension. The thickness of the hydration layer was calculated based on the structure, while the micelle size was determined using dynamic light scattering (DLS). Adsorption isotherms of the polymers on phthalocyanine blue were measured to evaluate changes in adsorption amount, adsorption energy, and limiting area at the solid-liquid interface in relation to the monomer ratio. Comparison of the results from adsorption and surface tension tests elucidated polymer conformations at both liquid-gas and solid-liquid interfaces. The dispersing performance of the polymers was also evaluated by testing the viscosity, particle size, and stability of pigment dispersions. This study provides insights into the design of effective polymeric dispersants for waterborne systems.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112665"},"PeriodicalIF":4.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167905","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

Small organic molecules-based NIR agents in cancer diagnostics: New frontiers in imaging and therapy

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-27 DOI: 10.1016/j.dyepig.2025.112648

Amal Adnan Ashour , Mohammed Fareed Felemban , Faris J. Tayeb , Abeer Alubaidi , Alaa Shafie

{"title":"Small organic molecules-based NIR agents in cancer diagnostics: New frontiers in imaging and therapy","authors":"Amal Adnan Ashour , Mohammed Fareed Felemban , Faris J. Tayeb , Abeer Alubaidi , Alaa Shafie","doi":"10.1016/j.dyepig.2025.112648","DOIUrl":"10.1016/j.dyepig.2025.112648","url":null,"abstract":"<div><div>Cancer is the leading cause of death worldwide, with millions of new cases and fatalities reported each year. Early detection plays a critical role in improving treatment outcomes and survival rates, as it allows for timely intervention and more effective therapies. Traditional diagnostic methods often face limitations in sensitivity, specificity, and the ability to detect tumors at an early stage. Therefore, there is a growing need for advanced diagnostic tools that can offer higher precision and earlier detection of cancer. In this regard, Near-Infrared (NIR) imaging has emerged as a promising technique, offering non-invasive, real-time, and high-resolution imaging capabilities for tumor visualization. Small organic molecules-based NIR agents have recently garnered attention in the field of cancer diagnostics due to their superior biocompatibility, tunable properties, and ability to penetrate deeper into tissues. These agents, including various organic fluorophores, that are designed to enhance the sensitivity and specificity of cancer imaging, enabling the detection of smaller tumors that are otherwise challenging to identify. This review aims to provide an overview of the latest advancements (2020–2025) in small organic molecules-based NIR agents for various cancer diagnosis, focusing on their development, applications, and potential for clinical use. By examining key innovations in this area, this article seeks to highlight the impact of small organic molecules-based NIR agents on the future of cancer theranostics.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112648"},"PeriodicalIF":4.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372617","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

Metabolic engineering of Escherichia coli BL21(DE3) for efficient production of indigo using Methylophaga aminisulfidivorans flavin-containing monooxygenase

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-27 DOI: 10.1016/j.dyepig.2025.112682

Rui Lu , Roulin Chen , Zeyu Li , Heng Hu , Zhimeng Wu , Yingying Zhu , Wanmeng Mu

{"title":"Metabolic engineering of Escherichia coli BL21(DE3) for efficient production of indigo using Methylophaga aminisulfidivorans flavin-containing monooxygenase","authors":"Rui Lu , Roulin Chen , Zeyu Li , Heng Hu , Zhimeng Wu , Yingying Zhu , Wanmeng Mu","doi":"10.1016/j.dyepig.2025.112682","DOIUrl":"10.1016/j.dyepig.2025.112682","url":null,"abstract":"<div><div>Biological production of indigo can be achieved by enzymatic hydroxylation of indole, the degradation product of tryptophan. Many oxygenases have been identified to be capable of producing indigo from indole, among which flavin-containing monooxygenase (FMO) is the most extensively studied. In this study, <em>Escherichia coli</em> BL21 (DE3) was metabolically engineered to efficiently produce indigo using FMO. Five reported indigo-producing FMOs and five homologous human FMOs were selected to evaluate the <em>in vivo</em> indigo production abilities, in which <em>Methylophaga aminisulfidivorans</em> FMO showed the highest indigo titer. Various metabolic engineering strategies were performed to stepwise enhance the indigo titer, including strengthening tryptophan transportation, blocking tryptophan synthesis-related competitive pathways, regulating key metabolic genes for tryptophan synthesis. When supplemented with tryptophan, the final engineered strain produced 532 and 1492 mg/L of indigo by shake-flask and fed-batch cultivation, respectively.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112682"},"PeriodicalIF":4.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167904","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

Novel amyloid-β oligomer-targeted fluorescent probes by introducing branched chain into push-pull type dye

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-25 DOI: 10.1016/j.dyepig.2025.112680

Rikuto Kashiyama , Hiroyuki Watanabe , Takahiro Akasaka, Masahiro Ono

引用次数: 0

Ultralong organic room temperature phosphorescence polymers enabled by chemically locking dopant internal rotation

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-23 DOI: 10.1016/j.dyepig.2025.112679

Zhichao Mao, Guotian Zhang, Haoyi Ma, Jinbin Liu, Shanfeng Xue, Qikun Sun, Wenjun Yang

{"title":"Ultralong organic room temperature phosphorescence polymers enabled by chemically locking dopant internal rotation","authors":"Zhichao Mao, Guotian Zhang, Haoyi Ma, Jinbin Liu, Shanfeng Xue, Qikun Sun, Wenjun Yang","doi":"10.1016/j.dyepig.2025.112679","DOIUrl":"10.1016/j.dyepig.2025.112679","url":null,"abstract":"<div><div>Ultralong organic room temperature phosphorescence (UORTP) polymers have attracted a growing interest in organic electronics and photonics fields. Although, amount of RTP molecules embed in polymer matrix is designed and constructed, it's still a stern challenge to explore a universal chemical/physical approach to obtain UORTP. Herein, a feasible and effective strategy is presented to achieve UORTP systems through doping three molecules, which were designed and synthesized successfully by chemical locking, into a poly (methyl methacrylate) matrix to form definite size films by thermo-plastic processing. Interestingly, three molecules with chemical locking modification that displays UORTP in a doped polymer matrix with lifetimes up to 2.33 s, 2.15 s, 2.50 s. The successful construction of these UORTP systems can be ascribed to i) effective suppression of thermal vibration nonradiation decay by chemical locking; ii) effective reduction of triplet excitons nonradiative decay rate via the formation of a more rigid microenvironment and electrostatic interaction between the PMMA matrix and three molecules. As a result, this work not only facilitate the design of UORTP materials by chemical locking design strategy, but also endow traditional polymers with fresh features for potential applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112679"},"PeriodicalIF":4.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167861","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

Tungsten disulfide quantum dots: Synthesis, structure, properties and biological applications

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-23 DOI: 10.1016/j.dyepig.2025.112668

Yongming Guo, Yixia Liu, Yubin Xiang

引用次数: 0

Multi-resonance skeleton connected by rigid B- and N-embedded dioxygen-bridged units: Investigating structure–property relationships

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-23 DOI: 10.1016/j.dyepig.2025.112681

Zhen Jiang , Qiyin Chen , Chao Shi , Jie Su , Feiyang Li , Kaishun Ye , Zhigang Zhao , Qiuxia Li , Aihua Yuan , Guohua Xie

{"title":"Multi-resonance skeleton connected by rigid B- and N-embedded dioxygen-bridged units: Investigating structure–property relationships","authors":"Zhen Jiang , Qiyin Chen , Chao Shi , Jie Su , Feiyang Li , Kaishun Ye , Zhigang Zhao , Qiuxia Li , Aihua Yuan , Guohua Xie","doi":"10.1016/j.dyepig.2025.112681","DOIUrl":"10.1016/j.dyepig.2025.112681","url":null,"abstract":"<div><div>Two novel multi-resonance (MR) skeleton-based thermally activated delayed fluorescence (TADF) derivatives (<strong>NO-BN</strong> and <strong>BO-BN</strong>), incorporating rigid B- and N-embedded dioxygen-bridged units (BO and NO), were synthesized and characterized. The single-crystal structure of <strong>NO-BO</strong> shows that both MR and NO units exhibit good planarity and induce interesting head-to-tail π−π interactions. Notably, two compounds exhibit different intramolecular charge-transfer character according to theoretical calculations and photophysical results. The lowest excited singlet state of <strong>BO-BN</strong> mainly shows the local excited state (LE) characteristics of MR unit, accompanied by weak charge transfer state characteristics from MR Unit to BO unit, while only obvious CT state characteristics from NO unit to MR unit can be found in S<sub>1</sub> of <strong>NO-BN</strong>. As a result, <strong>BO-BN</strong> (FWHM = 40 nm and Φ<sub>PL</sub> = 90 %) demonstates a narrower full width at half maximum (FWHM) and a higher emission efficiency than <strong>NO-BN</strong> (FWHM = 50 nm and Φ<sub>PL</sub> = 49 %). The compound <strong>BO-BN</strong> was selected as the guest emitter in a solution-processed OLED, achieving an excellent maximum external quantum efficiency of 24 %, along with saturated green emission at 510 nm. These findings provide a good understanding of the structure-property relationships in MR skeleton-based TADF materials.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112681"},"PeriodicalIF":4.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167916","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

Optimizing buried interface quality in inverted perovskite solar cells by modulating the spatial orientation of polymer hole transport materials using rigid copolymer units

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-01-22 DOI: 10.1016/j.dyepig.2025.112676

Xiaoran Yan , Mengdan Yang , Weihao Li , Yin Liu , Huidong Zhang , Xiangfei Kong , Zhenguang Hu , Yongzhen Wu , Haijun Tan

{"title":"Optimizing buried interface quality in inverted perovskite solar cells by modulating the spatial orientation of polymer hole transport materials using rigid copolymer units","authors":"Xiaoran Yan , Mengdan Yang , Weihao Li , Yin Liu , Huidong Zhang , Xiangfei Kong , Zhenguang Hu , Yongzhen Wu , Haijun Tan","doi":"10.1016/j.dyepig.2025.112676","DOIUrl":"10.1016/j.dyepig.2025.112676","url":null,"abstract":"<div><div>Optimizing the interfacial properties of functional layers is a critical strategy for enhancing the performance of inverted perovskite solar cells (PSCs). In this study, three phenothiazine-based polymer hole transport materials (HTMs) were designed and synthesized, utilizing fluorene, 9-fluorenone, and phenanthrenequinone as copolymer units, (<strong>PPTZ-FOM-0</strong>, <strong>PPTZ-FOM-1</strong>, and <strong>PPTZ-FOM-2</strong>, respectively). Notably, <strong>PPTZ-FOM-0</strong> and <strong>PPTZ-FOM-1</strong> exhibited helical spatial stacking. However, due to the high rigidity of the copolymer phenanthrenequinone, <strong>PPTZ-FOM-2</strong> transitioned to a chain-like planar conformation, which enhanced the exposure of functional groups and heteroatoms. This transformation significantly improved the film surface flatness and wettability, resulting in a reduction of the film root-mean-square surface roughness (RMS) from 24.8 nm (<strong>PPTZ-FOM-0</strong>) to 18.3 nm and a reduction of the contact angle with the perovskite precursor solution from 60.6° (<strong>PPTZ-FOM-0</strong>) to 38.3°. These properties are advantageous for the crystal growth of the perovskite layer and effectively suppress non-radiative recombination at the interface, optimizing buried interface quality in inverted PSCs. Ultimately, the power conversion efficiency (PCE) of the PSCs device based on <strong>PPTZ-FOM-2</strong> significantly increased from 15.3 % (<strong>PPTZ-FOM-0</strong>) to 17.3 %.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"236 ","pages":"Article 112676"},"PeriodicalIF":4.1,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167913","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