Materials Chemistry Frontiers最新文献_第5页

Highly effective DPA-SCP sonosensitizers for biofilm removal in infected root canals via sonodynamic therapy† 通过声动力疗法清除感染根管生物膜的高效 DPA-SCP 声敏化剂

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-18 DOI: 10.1039/D4QM00408F

Ziheng Zhang, Yuhan Wang, Jiafei Qu, Dan Ding, Minghui Wang, Xin Yue, Jingrui Xin and Jing Shen

{"title":"Highly effective DPA-SCP sonosensitizers for biofilm removal in infected root canals via sonodynamic therapy†","authors":"Ziheng Zhang, Yuhan Wang, Jiafei Qu, Dan Ding, Minghui Wang, Xin Yue, Jingrui Xin and Jing Shen","doi":"10.1039/D4QM00408F","DOIUrl":"10.1039/D4QM00408F","url":null,"abstract":"In endodontic therapy, effective disinfection of root canals is crucial to prevent persistent infections, often caused by resilient biofilms such as those formed by Enterococcus faecalis. This study introduces a novel sonodynamic therapy (SDT) approach utilizing an aggregation-induced emission (AIE) sonosensitizer, DPA-SCP, activated by low-frequency ultrasound. The process involves four key steps: (1) application of low-frequency ultrasound to infected root canals, providing direct mechanical effects on biofilms; (2) activation of DPA-SCP by ultrasound energy, triggering the generation of reactive oxygen species (ROS); (3) ROS permeation through biofilm matrices, causing oxidative damage to bacterial cell walls and membranes, leading to cell death; and (4) synergistic biofilm eradication through ROS oxidation and ultrasound mechanical effects. In vitro experiments demonstrate that DPA-SCP, when combined with ultrasound, significantly reduces bacterial viability and biofilm integrity in infected root canals, showing comparable effectiveness to sodium hypochlorite, the current clinical standard. Moreover, DPA-SCP exhibits reduced cytotoxicity and minimal thermal effects, indicating its potential for safe clinical application. This multi-step, multi-mechanism approach not only improves the effectiveness of root canal treatment but also provides a new solution to overcome biofilm tolerance issues faced by conventional methods.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 23","pages":" 3906-3918"},"PeriodicalIF":6.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solution-processed structural colors and their applications 固溶处理结构色及其应用

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-13 DOI: 10.1039/D3QM01340E

Wei-Jie Feng, Jennie Paik and L. Jay Guo

引用次数: 0

PEDOT-based counter electrodes for dye-sensitized solar cells: rigid, flexible and indoor light applications 基于 PEDOT 的染料敏化太阳能电池对电极：刚性、柔性和室内光应用

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-12 DOI: 10.1039/D4QM00347K

Cheng Chen, Francis Kwaku Asiam, Ashok Kumar Kaliamurthy, Md. Mahbubur Rahman, Muhammad Sadiq and Jae-Joon Lee

{"title":"PEDOT-based counter electrodes for dye-sensitized solar cells: rigid, flexible and indoor light applications","authors":"Cheng Chen, Francis Kwaku Asiam, Ashok Kumar Kaliamurthy, Md. Mahbubur Rahman, Muhammad Sadiq and Jae-Joon Lee","doi":"10.1039/D4QM00347K","DOIUrl":"10.1039/D4QM00347K","url":null,"abstract":"Dye-sensitized solar cells (DSSCs) are promising technology owing to their unique properties such as high transparency, good color tunability, and easy large-area fabrication, which make them attractive candidates for emerging photovoltaic applications. However, conventional DSSCs require high-temperature processing for working and counter electrodes (WEs and CEs, respectively), limiting their diverse applications. Low temperature processing for highly catalytic CEs, particularly using poly(3,4-ethylenedioxythiophene) (PEDOT) as a conducting and catalytic replacement for platinum, shows potential for increased efficiency under various light conditions. Despite the high catalytic activity of PEDOT, its limited solubility and processing technologies (e.g., electrochemical deposition and spin-coating) have necessitated the interest in composites of PEDOT either with poly(styrene sulfonate), metal compounds, or in combination with carbon materials, aiming to overcome these limitations. With the combined properties of high conductivity, catalytic activity, porosity, and low temperature processability, these CEs based on PEDOT have higher scientific and industrial prospects. Moreover, the highly transparent PEDOT-based CEs can also be used for bifacial application in DSSCs. To continuously draw interest to further research on these materials, this review provided an overview of PEDOT-based CEs for rigid, flexible, and indoor applications of DSSCs. Additionally, we discuss the changes in electronic, chemical, and stability properties associated with the formation of each type of composite material. The challenges and prospects of PEDOT-based materials are further highlighted, which pave the way for performance improvements in the future, as well as identifying other potential applications in the semiconductor industry.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 20","pages":" 3413-3445"},"PeriodicalIF":6.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isomer effect study of pyridinium-type cationic fluorophores: multiple functions and internal optical mechanisms† 吡啶型阳离子荧光团的异构体效应研究：多种功能和内部光学机制

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-11 DOI: 10.1039/D4QM00578C

Yasong Cao, Caili Zhang, Zhonghua Zhao, Haowen Huang, Jiatong Xu, Richao Shen, Cheng Zeng, Jiawei Lv, Ziqiang Lei and Hengchang Ma

引用次数: 0

Manganese(ii) oxide-embedded dopamine-derived carbon nanospheres for durable zinc-ion batteries† 用于耐用锌-离子电池的嵌入式多巴胺衍生碳纳米氧化锰（II）球

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-11 DOI: 10.1039/D4QM00505H

Zixiang Zhou, Jianbo Tong, Jiale Guo, Shaofeng Guo, Shuhan Liu, Zhipeng Qin, Zelei Chang, Chao Wang and Shuling Liu

{"title":"Manganese(ii) oxide-embedded dopamine-derived carbon nanospheres for durable zinc-ion batteries†","authors":"Zixiang Zhou, Jianbo Tong, Jiale Guo, Shaofeng Guo, Shuhan Liu, Zhipeng Qin, Zelei Chang, Chao Wang and Shuling Liu","doi":"10.1039/D4QM00505H","DOIUrl":"10.1039/D4QM00505H","url":null,"abstract":"Manganese oxides are considered highly promising as cathode materials for aqueous zinc-ion batteries (ZIBs) owing to their abundant resources, high discharge potential, and substantial theoretical capacity. Nonetheless, MnO is commonly perceived to exhibit insufficient electrochemical activity and is deemed unsuitable for Zn2+ storage. Herein, MnO-embedded PDA-derived carbon (MnO/C-PDA) is utilized as the cathode material for ZIBs, and its electrochemical behavior in ZnSO4 electrolytes with varying MnSO4 concentrations is investigated. The results indicate that the incorporation of manganese salt electrolyte notably enhances electrode capacity, though excessively high concentrations of manganese salt diminish electrode activity. In the electrolyte containing 0.2 M MnSO4, MnO-C/PDA exhibits a capacity of 295.4 mA h g−1 at 0.1 A g−1, with negligible capacity degradation even after 100 cycles. Ex situ characterization reveals that during the charging process, MnO transformed into amorphous MnOx, accompanied by the deposition of manganese salts forming MnOx, while the discharge process involved the co-insertion of Zn2+ and H+. This work is anticipated to enhance comprehension regarding the charge and discharge mechanisms of MnO, thus aiding in the development of manganese oxide cathodes tailored for ZIBs.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 21","pages":" 3616-3623"},"PeriodicalIF":6.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electromagnetic induction drives electron–hole separation in an optoelectronic nerve conduit to accelerate nerve repair† 电磁感应驱动光电神经导管中的电子-空穴分离，加速神经修复

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-07 DOI: 10.1039/D4QM00452C

Cijun Shuai, Feng Ding, Xiaosong Chen, Huarui Zhou, Hongyi Qian, Yifeng Wang, Yanyan Chen, Fangwei Qi and Xinna Bai

{"title":"Electromagnetic induction drives electron–hole separation in an optoelectronic nerve conduit to accelerate nerve repair†","authors":"Cijun Shuai, Feng Ding, Xiaosong Chen, Huarui Zhou, Hongyi Qian, Yifeng Wang, Yanyan Chen, Fangwei Qi and Xinna Bai","doi":"10.1039/D4QM00452C","DOIUrl":"10.1039/D4QM00452C","url":null,"abstract":"As a photoelectric material, bismuth sulfide (Bi2S3) can convert light signals into electrical signals and thus hold tremendous promise in constructing wireless electrical stimulation to accelerate nerve regeneration. However, the easy recombination of electrons and holes weakens the electrical stimulation effect. Herein, core–shell Bi2S3@PPy nanorods were prepared via the in situ hydrothermal polymerization of conductive polypyrrole (PPy) on Bi2S3 and were then blended into poly-L-lactic acid powder to fabricate a nerve conduit via laser additive manufacturing. Under a rotating magnetic field, conductive Bi2S3@PPy in the conduit could cut the magnetic inductance line to generate induced electromotive force that could drive the electrons and holes of Bi2S3 in opposite directions, thereby achieving efficient separation. Results indicate that the enhanced electron–hole separation boosted photocurrent generation, with an output current of 7.5 μA, which was significantly higher than the photocurrent under light irradiation (5.0 μA) and the induced current under magnetic field (2.5 μA). Immunofluorescent staining demonstrated that the enhanced photocurrent could up-regulate the expression of neuronal markers Nestin and GFAP. Moreover, the intracellular influx of Ca2+ was improved, which indicated that the differentiation of BMSCs into neurons was promoted. Overall, this work provides a potential wireless electrical stimulation strategy for accelerating nerve repair.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 22","pages":" 3758-3769"},"PeriodicalIF":6.0,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MoS2-functionalized chitosan hydrogel with antibacterial and antioxidant functions promotes healing of infected diabetic wounds† 具有抗菌和抗氧化双重功能的 MoS2 功能化壳聚糖复合水凝胶促进糖尿病感染伤口的愈合

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-07 DOI: 10.1039/D4QM00562G

Yingjie He, Jiahe Guo, Hua Li, Jiaxi Jiang, Jing Chen, Guichun Yang, Xiaofan Yang, Zhenbing Chen and Cuifen Lu

{"title":"MoS2-functionalized chitosan hydrogel with antibacterial and antioxidant functions promotes healing of infected diabetic wounds†","authors":"Yingjie He, Jiahe Guo, Hua Li, Jiaxi Jiang, Jing Chen, Guichun Yang, Xiaofan Yang, Zhenbing Chen and Cuifen Lu","doi":"10.1039/D4QM00562G","DOIUrl":"10.1039/D4QM00562G","url":null,"abstract":"Due to high levels of reactive oxygen species (ROS), bacterial infections, and persistent inflammatory responses, the healing of diabetic infected wounds remains challenging. Therefore, diabetic wound dressings face higher demands for antioxidant and antibacterial properties. Additionally, dressings that are injectable, self-healing, and have good adhesion are particularly ideal as they can adapt to irregular wounds and self-repair after external damage. In this study, we designed an injectable, self-healing adhesive composite hydrogel with dual functions of antibacterial and antioxidant properties by functionalizing chitosan (CS) with molybdenum disulfide (MoS2) and using the Schiff base reaction with the star-shaped eight-arm crosslinker benzaldehyde-terminated polyethylene glycol (POSS-PEG-CHO). This composite hydrogel exhibits excellent tissue adhesion, hemostatic properties, robust mechanical strength, and good cellular compatibility. The incorporation of MoS2 nanosheets (NS) endows the hydrogel with exceptional photothermal antibacterial effects and effective ROS scavenging capability. MoS2@Gel demonstrates strong ROS scavenging at the molecular level and superior antibacterial performance under near-infrared light. Moreover, in a diabetic wound infection model, MoS2@Gel significantly alleviates oxidative stress and bacterial infection during the inflammatory phase, while promoting epithelial tissue regeneration, collagen deposition, and angiogenesis, thereby accelerating the repair of diabetic wounds. Therefore, this composite hydrogel represents a promising and effective strategy for treating diabetic infected wounds.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 22","pages":" 3770-3789"},"PeriodicalIF":6.0,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual luminescence and infrared circularly polarized luminescence up to 900 nm with platinum complexes bearing a helical donor–acceptor ligand† 带有螺旋供体-受体配体的铂配合物的双发光和高达 900 纳米的红外圆偏振发光特性

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-06 DOI: 10.1039/D4QM00632A

Pablo Vázquez-Domínguez, Maher Horojat, Eva Suits, Francisco José Fernández de Córdova, Nicolas Vanthuyne, Denis Jacquemin, Abel Ros and Ludovic Favereau

{"title":"Dual luminescence and infrared circularly polarized luminescence up to 900 nm with platinum complexes bearing a helical donor–acceptor ligand†","authors":"Pablo Vázquez-Domínguez, Maher Horojat, Eva Suits, Francisco José Fernández de Córdova, Nicolas Vanthuyne, Denis Jacquemin, Abel Ros and Ludovic Favereau","doi":"10.1039/D4QM00632A","DOIUrl":"10.1039/D4QM00632A","url":null,"abstract":"Chiral molecular materials able to emit circularly polarized luminescence (CPL) have attracted considerable interest in the last few decades, due to the potential of CP-light in a wide range of applications. While CP luminescent molecules with blue, green, and yellow emissions are now well-reported, NIR CPL from organic and organometallic compounds lags behind due to the dual challenge of promoting radiative deexcitation of the excited state in this low energy region while assuring a significant magnetic dipole transition moment, a prerequisite for generating CPL. Based on a versatile axially chiral arylisoquinoline ligand, we report the synthesis and chiroptical properties of chiral donor–acceptor platinum(II) complexes displaying CPL that extends up to almost 900 nm. Interestingly, these emitters show both fluorescence and phosphorescence emissions in solution, with intensities depending on the charge-transfer character of the organic ligand. Experimental and theoretical investigations show that this feature strongly impacts the intersystem crossing event between the singlet and triplet excited states of these complexes and the related phosphorescence lifetime. The effect is less important regarding the CPL, and most complexes show luminescence dissymmetry factors with values up to ca. 2 × 10−3 around 800 nm.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 22","pages":" 3799-3806"},"PeriodicalIF":6.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/qm/d4qm00632a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comprehensive study on the halogenation effect of non-fullerene acceptors for photovoltaic application† 光伏应用中非富勒烯受体卤化效应的综合研究

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-06 DOI: 10.1039/D4QM00648H

Jing Peng, Lijiao Ma, Huixue Li, Guanlin Wang, Zhihao Chen, Feiwu Chen, Jianhui Hou and Shaoqing Zhang

{"title":"A comprehensive study on the halogenation effect of non-fullerene acceptors for photovoltaic application†","authors":"Jing Peng, Lijiao Ma, Huixue Li, Guanlin Wang, Zhihao Chen, Feiwu Chen, Jianhui Hou and Shaoqing Zhang","doi":"10.1039/D4QM00648H","DOIUrl":"10.1039/D4QM00648H","url":null,"abstract":"In this study, four non-fullerene acceptor (NFA) materials, namely ITC9-4F, ITC9-4Cl, ITC9-4Br, and ITC9-4I, were designed and synthesized by introducing 4F, 4Cl, 4Br, and 4I substituents within their end groups, respectively. A comprehensive investigation into the photovoltaic properties of these NFAs was conducted in organic solar cells (OSCs). Calculation results showed similar surface electrostatic potentials among the four materials, but significant differences in atomic radii during the halogen substitution process. Photoelectric property analysis indicated that halogen substituents influenced absorption spectra and molecular energy levels. Specifically, ITC9-4F exhibited a blue-shifted absorption spectrum and lower extinction coefficient compared to the other three NFAs. In OSC applications, ITC9-4F-based cells demonstrated distinct photovoltaic parameters, including a high open-circuit voltage (VOC) of 0.89 V but a lower power conversion efficiency (PCE) of 13.1%. On the other hand, OSCs based on ITC9-4Cl, ITC9-4Br, and ITC9-4I showed comparable PCEs of 14.6%, 14.1%, and 14.6%, respectively, with progressively increased VOC and decreased fill factor values. Trap-assisted recombination became more severe in the order of 4F-, 4Cl-, 4Br-, and 4I-based cells, while energy loss decreased gradually. These findings highlight the potential of halogenated acceptor–donor–acceptor-type NFAs in OSC applications and offer valuable insights for designing novel photovoltaic materials.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 21","pages":" 3643-3652"},"PeriodicalIF":6.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multicolor circularly polarized luminescence: pendant primary amine/diphenylalanine chiral copolymers with clustering-triggered emission† 多色圆偏振发光：具有簇触发发射的悬垂伯胺/二苯丙氨酸手性共聚物

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-09-06 DOI: 10.1039/D4QM00228H

Ryo Yonenuma, Aoi Takenaka, Tamaki Nakano and Hideharu Mori

{"title":"Multicolor circularly polarized luminescence: pendant primary amine/diphenylalanine chiral copolymers with clustering-triggered emission†","authors":"Ryo Yonenuma, Aoi Takenaka, Tamaki Nakano and Hideharu Mori","doi":"10.1039/D4QM00228H","DOIUrl":"10.1039/D4QM00228H","url":null,"abstract":"Clustering-triggered emission (CTE) materials without π-conjugate chromophores have attracted increasing attention, because of their nonconventional emission properties and wide applications. However, circularly polarized luminescence (CPL) in CTE materials has been less explored. In this study, we designed CTE-based CPL block and random copolymers comprising vinyl amine and N-acryloyl-L,L-diphenylalanine. These CTE-based chiral copolymers exhibited concentration- and excited-wavelength-dependent emissions in water. By introducing a charged fluorescent dye (thioflavin T (ThT) or rose bengal) into the copolymer aqueous solution, a red-shifted emission color was detected as the amount of fluorescent dye owing to the fluorescence resonance energy transfer (FRET) between the dye and block copolymers via electrostatic interactions. The chirality of block copolymer was transferred into achiral ThT, as confirmed by ThT-induced circular dichroism. The thin film of CTE-based chiral block copolymer and block copolymer/ThT exhibited CPL, and the chirality of ThT was amplified with the highest emission dissymmetry factor (glum) of −0.0099. This study provides a new perspective on CTE-based CPL polymeric materials, showing CTE-CPL properties in solid states and multicolor CPL by FRET via electrostatic interactions.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 21","pages":" 3596-3607"},"PeriodicalIF":6.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0