Materials Chemistry Frontiers最新文献

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Self-supporting Fe7S8 microsphere/N-doped carbonized silk textile for high-performance sodium-ion batteries† 高性能钠离子电池用自支撑Fe7S8微球/掺n碳化丝织品
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-28 DOI: 10.1039/D5QM00190K
Zhilong Yan, Rong Liu, Zhiwen Long, Ruizhe Zhang, Ke Liu, Wei Li, Keliang Wang and Hui Qiao
{"title":"Self-supporting Fe7S8 microsphere/N-doped carbonized silk textile for high-performance sodium-ion batteries†","authors":"Zhilong Yan, Rong Liu, Zhiwen Long, Ruizhe Zhang, Ke Liu, Wei Li, Keliang Wang and Hui Qiao","doi":"10.1039/D5QM00190K","DOIUrl":"https://doi.org/10.1039/D5QM00190K","url":null,"abstract":"<p >High-performance sodium-ion batteries (SIBs) represent an optimal energy solution for flexible wearable devices, with the design and development of advanced anodes being crucial in determining their overall performance. A major challenge for flexible electrodes is achieving both high energy density and long-term cycle stability. To address these issues, a Fe<small><sub>7</sub></small>S<small><sub>8</sub></small> microsphere/N-doped carbonized silk textile as a self-supporting anode for SIBs is developed. Fe<small><sub>7</sub></small>S<small><sub>8</sub></small> microspheres are anchored onto a three-dimensional carbon network derived from silk fabric <em>via</em> electrostatic adsorption followed by calcination. The as-prepared flexible self-supporting Fe<small><sub>7</sub></small>S<small><sub>8</sub></small> microsphere/N-doped carbonized silk textile demonstrates exceptional mechanical durability, maintaining structural integrity and stable resistance after 2000 bending cycles. Electrochemical performance shows a notable areal capacity of 1.42 mA h cm<small><sup>−2</sup></small> at 0.3 mA cm<small><sup>−2</sup></small>, along with impressive cycling stability. After 600 cycles at 5 mA cm<small><sup>−2</sup></small>, it maintains 0.39 mA h cm<small><sup>−2</sup></small>, with a modest capacity loss of 21% at high current density. It also demonstrates excellent rate performance, achieving reversible capacities of 1.67, 1.32, 1.12, 0.87, 0.71 and 0.37 mA h cm<small><sup>−2</sup></small> at current densities of 0.1, 0.3, 0.5, 1, 2 and 5 mA cm<small><sup>−2</sup></small>, respectively. The microsphere structure of Fe<small><sub>7</sub></small>S<small><sub>8</sub></small> ensures extensive contact with the electrolyte, enhancing ion accessibility and structural stability. The carbonized silk textile provides higher flexibility, which helps alleviate strain during deformation. Simultaneously, the N-doped carbon network derived from silk fabric offers additional Na<small><sup>+</sup></small> adsorption sites, and facilitates efficient electron and ion transport. Moreover, the excellent mechanical flexibility of the electrode offers promising prospects for its potential application in flexible wearable electronic devices.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1747-1757"},"PeriodicalIF":6.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140065","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
Capillary force and concentration gradient promote the bioprocessing-inspired formation of ultralong fluorapatite nanorods under confinement† 毛细管力和浓度梯度促进了约束条件下超长氟磷灰石纳米棒的生物处理诱导形成
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-28 DOI: 10.1039/D5QM00137D
Yonglang Yu, Ping Yuan, Zhengyi Fu and Zhaoyong Zou
{"title":"Capillary force and concentration gradient promote the bioprocessing-inspired formation of ultralong fluorapatite nanorods under confinement†","authors":"Yonglang Yu, Ping Yuan, Zhengyi Fu and Zhaoyong Zou","doi":"10.1039/D5QM00137D","DOIUrl":"https://doi.org/10.1039/D5QM00137D","url":null,"abstract":"<p >Crystallization within small volumes of solutions rather than bulk solutions is a common phenomenon found during material synthesis and biomineralization processes. However, the driving forces for mass transport and crystallization in confined environments remain elusive. Herein, inspired by the intrafibrillar collagen mineralization process, we investigate the infiltration and crystallization mechanisms of fluorapatite (FAP) within confined channels by comparing anodic aluminum oxide and track-etched templates with different surface properties. The results demonstrate that similar to intrafibrillar collagen mineralization, capillary force, along with a specific interaction between the confined channel surface and mineral precursors, is the main driving force for the initial infiltration of liquid precursors into confined channels, leading to the nucleation of FAP nanocrystals on the surface of the channels. We elucidate the critical role of negatively charged polyacrylic acid in promoting the formation of liquid precursors for successful infiltration into confined channels and controlling crystallization kinetics within the channels. The formation of FAP nanorods, followed by further promoting ion diffusion <em>via</em> a concentration gradient, resulted from the lower local concentration surrounding the FAP crystals. Furthermore, FAP nanocrystals exhibit progressive alignment along the channel direction during the subsequent crystal growth stage, and ultralong FAP nanorods with a length of more than 25 μm could be obtained. The collective findings underscore the pivotal role of the structure and surface properties of nanoscale confined environments in controlling the infiltration and crystallization pathways of inorganic crystals and establishing a foundation for the controlled synthesis of biomimetic materials under confinement.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 12","pages":" 1857-1869"},"PeriodicalIF":6.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244034","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
B-site cation sequencing in SrMnO3 using iron for zinc–air battery electrocatalysis: a structural evaluation† 铁在锌-空气电池电催化SrMnO3中的b位阳离子测序:结构评价
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-28 DOI: 10.1039/D5QM00268K
Carolin Mercy Enoch, Sagar Ingavale, Prabakaran Varathan, Akhila Kumar Sahu and Anita Swami
{"title":"B-site cation sequencing in SrMnO3 using iron for zinc–air battery electrocatalysis: a structural evaluation†","authors":"Carolin Mercy Enoch, Sagar Ingavale, Prabakaran Varathan, Akhila Kumar Sahu and Anita Swami","doi":"10.1039/D5QM00268K","DOIUrl":"https://doi.org/10.1039/D5QM00268K","url":null,"abstract":"<p >An unprecedented approach for synthesizing strontium manganese perovskite oxides (ABO<small><sub>3</sub></small>) and their B-site substituted variants (SrMn<small><sub>1−<em>x</em></sub></small>Fe<small><sub><em>x</em></sub></small>O<small><sub>3</sub></small>) was employed using the molten salt synthesis route. This study aims to investigate the intrinsic property changes of perovskite oxide materials and their electrochemical response, particularly in the bifunctional oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Systematic substitution at the B-site induces a phase transition from hexagonal to trigonal, and then to orthorhombic, which was confirmed through Rietveld refinement of XRD data, along with SEM, TEM and XPS analyses. The multiple oxidation states of manganese (Mn<small><sup>3+</sup></small>/Mn<small><sup>4+</sup></small>) and iron (Fe<small><sup>3+</sup></small>/Fe<small><sup>2+</sup></small>) at the B-site play a crucial role in redox reactions. Furthermore, the orthorhombic brownmillerite phase (Sr<small><sub>2</sub></small>MnFeO<small><sub>5</sub></small>) promotes the ORR even without conductive support, which is attributed to its intrinsic conductivity stemming from the specific distribution of oxygen vacancies. The favorable adsorption/desorption energies of oxygen intermediates are a result of regulated electron filling in the d orbitals. The SrMn<small><sub>0.7</sub></small>Fe<small><sub>0.3</sub></small>O<small><sub>3</sub></small> variant was evaluated as a bifunctional electrocatalyst, showing an onset potential of 0.99 V <em>vs.</em> RHE for the ORR, and demonstrated excellent performance in rechargeable zinc–air batteries (ZABs), with a high peak power density of 114 mW cm<small><sup>−2</sup></small> and a long cycle life of over 262 hours, exhibiting a specific capacity of 680 mA h g<small><sup>−1</sup></small>. The unique structural properties of SrMn<small><sub>0.7</sub></small>Fe<small><sub>0.3</sub></small>O<small><sub>3</sub></small> make it a promising candidate for ZAB applications.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1758-1771"},"PeriodicalIF":6.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140066","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
Enhancing pancreatic cancer ablation efficiency: bipolar IRE with conductive MOF† 增强胰腺癌消融效率:导电MOF†双极IRE
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-26 DOI: 10.1039/D4QM01041H
Lei Xu, Wenjing Lou, Fan Xu, Yujiao Xie, Yue Hu, Liting Xie, Chengyue Zhang, Aochi Liu, Xinyu Miao, Zhiwei Hou, Wenyuan Ma, Qiyu Zhao, Jie Lin, Aiguo Wu and Tianan Jiang
{"title":"Enhancing pancreatic cancer ablation efficiency: bipolar IRE with conductive MOF†","authors":"Lei Xu, Wenjing Lou, Fan Xu, Yujiao Xie, Yue Hu, Liting Xie, Chengyue Zhang, Aochi Liu, Xinyu Miao, Zhiwei Hou, Wenyuan Ma, Qiyu Zhao, Jie Lin, Aiguo Wu and Tianan Jiang","doi":"10.1039/D4QM01041H","DOIUrl":"https://doi.org/10.1039/D4QM01041H","url":null,"abstract":"<p >Irreversible electroporation (IRE) has emerged as a promising therapeutic modality for pancreatic cancer. However, traditional IRE techniques rely on high-voltage electric fields and require precise alignment of multiple electrodes, which complicates the procedure and increases associated risks. To address these challenges, we developed a novel “bipolar” IRE electrode that combines both the cathode and anode into a single device, simplifying the procedure and potentially reducing operational risks. Additionally, we incorporated a conductive metal–organic framework (MOF) to enhance the electric field distribution of the electric field, thereby improving the efficacy of tumor ablation. Mechanistic studies revealed that this combined approach induces tumor cell apoptosis and improves the consistency of ablation outcomes. Both <em>in vitro</em> and <em>in vivo</em> experiments demonstrated that the bipolar electrode, in combination with the conductive MOF, achieved a significant apoptosis rate of 59.95% ± 2.41 <em>in vitro</em> and resulted in an 85.77% ± 0.21 reduction in tumor volume in <em>in vivo</em> models, without any adverse effects. This approach provides a more optimized and potentially more effective solution for treating pancreatic cancer.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 13","pages":" 2018-2030"},"PeriodicalIF":6.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144367091","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
High-performance green emitting Mn2+-doped 0D OIHMH crystals for white LEDs and anti-counterfeiting applications† 高性能绿色发光Mn2+掺杂0D OIHMH晶体白光led和防伪应用†
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-25 DOI: 10.1039/D5QM00128E
Qianrong Jin, Yuexiao Pan, Yali Tang, Yingnuo Chen, Suqin Chen and Jun Zou
{"title":"High-performance green emitting Mn2+-doped 0D OIHMH crystals for white LEDs and anti-counterfeiting applications†","authors":"Qianrong Jin, Yuexiao Pan, Yali Tang, Yingnuo Chen, Suqin Chen and Jun Zou","doi":"10.1039/D5QM00128E","DOIUrl":"https://doi.org/10.1039/D5QM00128E","url":null,"abstract":"<p >The exploration of novel phosphors with excellent properties is of great significance for both fundamental research and practical applications in optoelectronic devices. In this study, we report the synthesis of a new 0 dimensional (0D) organic–inorganic hybrid metal halide (OIHMH), C<small><sub>6</sub></small>H<small><sub>14</sub></small>N<small><sub>2</sub></small>ZnCl<small><sub>4</sub></small>, doped with Mn<small><sup>2+</sup></small> ions, which exhibits bright green emission centered at 535 nm, originating from the d–d transition of tetrahedrally coordinated Mn<small><sup>2+</sup></small> ions. The sample exhibits a photoluminescence quantum yield (PLQY) of 70% at a doping concentration of 40% and demonstrates good thermal stability, with luminescence intensity restored after a heating–cooling cycle. The as-prepared Mn<small><sup>2+</sup></small>-doped C<small><sub>6</sub></small>H<small><sub>14</sub></small>N<small><sub>2</sub></small>ZnCl<small><sub>4</sub></small> crystals were further utilized to fabricate white light-emitting diodes (WLEDs), which demonstrated good performance with a correlated color temperature (CCT) of 6003 K and a color rendering index (CRI) of 79. Additionally, the doped crystals showing bright green emission were explored for anti-counterfeiting applications, and they show promising potential in security marking. This work highlights the potential of Mn<small><sup>2+</sup></small>-doped OIHHPCs as high-performance phosphors for optoelectronic applications and security purposes.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 12","pages":" 1850-1856"},"PeriodicalIF":6.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244033","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
Cation doping engineering of metal halide perovskites for high-energy X-ray exploration 高能x射线探测用金属卤化物钙钛矿阳离子掺杂工程
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-25 DOI: 10.1039/D5QM00236B
Guiqiang Pu, Rufeng Wang, Yangmin Tang, Junnan Song and Jiacheng Wang
{"title":"Cation doping engineering of metal halide perovskites for high-energy X-ray exploration","authors":"Guiqiang Pu, Rufeng Wang, Yangmin Tang, Junnan Song and Jiacheng Wang","doi":"10.1039/D5QM00236B","DOIUrl":"https://doi.org/10.1039/D5QM00236B","url":null,"abstract":"<p >Although metal halide perovskites (MHPs) have shown great advantages as scintillators due to their high quantum efficiency, short luminescence lifetime, low preparation cost, and ease of processing, their further commercialization is still limited due to the challenges such as poor radiative stability, reabsorption, and mismatch between their performance and applications. It is noteworthy that cation doping engineering has been evidenced as an effective solution to overcome these problems faced by MHPs scintillators. To this end, we provide a comprehensive summary of cationic doping engineering used for MHPs scintillators. Foundational theoretical knowledge, including configuration of MHPs and cation doping mechanisms, is first introduced. Multiple technical methods used to introduce impurity cations into MHPs are also discussed. We then discuss in detail the positive impact of cation doping engineering on the scintillation performances of MHPs and their corresponding advanced applications. Finally, we explore the future prospects of cation-doped MHPs scintillators in light of recent advances. This review aims to inspire researchers to explore the next generation of cation-doped MHPs scintillators and to extend their applications.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 13","pages":" 1954-1970"},"PeriodicalIF":6.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144367134","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
Strategies for broadening the emission spectra of Cr3+-doped near-infrared emitting phosphors 增宽Cr3+掺杂近红外发光荧光粉发射光谱的策略
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-23 DOI: 10.1039/D4QM01109K
Changheng Chen, Jiwen Chang, Renze Chen, Ruibo Gao, Yiqing Wang, Kexin Zhu, Jinmeng Xiang and Chongfeng Guo
{"title":"Strategies for broadening the emission spectra of Cr3+-doped near-infrared emitting phosphors","authors":"Changheng Chen, Jiwen Chang, Renze Chen, Ruibo Gao, Yiqing Wang, Kexin Zhu, Jinmeng Xiang and Chongfeng Guo","doi":"10.1039/D4QM01109K","DOIUrl":"https://doi.org/10.1039/D4QM01109K","url":null,"abstract":"<p >Cr<small><sup>3+</sup></small>-activated near-infrared (NIR) phosphors have significant application potential in food detection and analysis of biological fluids and tissues components owing to the large spectrum overlap between Cr<small><sup>3+</sup></small> emission and the absorption bands of water and organic groups. To realize real-time, convenient and multi-component detection, a wideband NIR phosphor with a large bandwidth (FWHM &gt; 200 nm) is urgently required to effectively cover the absorption band of the target analyte. This review simply offers a retrospect of the researches on existing Cr<small><sup>3+</sup></small>-doped wideband phosphors and summarizes the key strategies, including crystal field regulation, lattice site engineering, Cr<small><sup>3+</sup></small>–Cr<small><sup>3+</sup></small> pairs, Cr<small><sup>3+</sup></small>/Cr<small><sup>4+</sup></small> double fluorescence centers, energy transfer process and the new emission centers resulting from the lattice distortion caused by Cr<small><sup>3+</sup></small> doping, for broadening the Cr<small><sup>3+</sup></small> bandwidth. The feature of the Cr<small><sup>3+</sup></small> emission is also discussed using the Tanabe–Sugano energy level diagram and configuration coordinate model. In addition, the existing problems and future prospects of Cr<small><sup>3+</sup></small>-activated wideband emission phosphors are elucidated, providing a reference to broaden the bandwidth of Cr<small><sup>3+</sup></small> for the development of efficient and stable wideband near-infrared phosphors.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 12","pages":" 1821-1838"},"PeriodicalIF":6.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244047","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
Oxygen-vacancy-rich MOF-derived amorphous Fe–Co–Se–O electrocatalyst for boosting the alkaline oxygen evolution reaction† 富氧mof衍生无定形Fe-Co-Se-O电催化剂促进碱性析氧反应†
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-23 DOI: 10.1039/D5QM00156K
He Zheng, Ziqi Zhang, Yuxin Liu, Shuzhe Zhang, Yong Zhou, Zhe Zhang, Ruige Zhang, Zhan Shi, Chunguang Li and Shouhua Feng
{"title":"Oxygen-vacancy-rich MOF-derived amorphous Fe–Co–Se–O electrocatalyst for boosting the alkaline oxygen evolution reaction†","authors":"He Zheng, Ziqi Zhang, Yuxin Liu, Shuzhe Zhang, Yong Zhou, Zhe Zhang, Ruige Zhang, Zhan Shi, Chunguang Li and Shouhua Feng","doi":"10.1039/D5QM00156K","DOIUrl":"https://doi.org/10.1039/D5QM00156K","url":null,"abstract":"<p >Electrochemical water splitting has been a major focus among researchers due to the degradation of fossil fuels. Here, we successfully synthesized an amorphous Fe–Co–Se–O-300 catalyst derived from the precursor FeSe<small><sub>2</sub></small>@ZIF-67, featuring abundant oxygen vacancies (V<small><sub>O</sub></small>), through a combination of ambient temperature stirring, hydrothermal treatment and high-temperature annealing. The Fe–Co–Se–O-300 catalyst required only an overpotential of 280 mV to achieve a current density of 10 mA cm<small><sup>−2</sup></small>. Electron paramagnetic resonance (EPR) testing confirmed the presence of oxygen vacancies. The X-ray photoelectron spectroscopy (XPS) analysis also confirmed the existence of V<small><sub>O</sub></small> and revealed that during the OER process, electrons transferred from the Fe species to the V<small><sub>O</sub></small> species and then to the Co species. As a result, the Fe–Co–Se–O-300 catalyst contained more Co<small><sup>2+</sup></small> and Fe<small><sup>3+</sup></small> species, which enhanced its OER performance. The <em>in situ</em> Raman spectra indicated that the Se species were oxidized to SeO<small><sub>3</sub></small><small><sup>2−</sup></small> due to the presence of V<small><sub>O</sub></small>. Further experiments revealed that the surface-absorbed SeO<small><sub>3</sub></small><small><sup>2−</sup></small> greatly improved the OER performance of the catalyst. In conclusion, the large number of oxygen vacancies modified the electronic structure of the catalyst and oxidized the Se species, both of which contributed to the enhancement of the OER performance. This work offers an energy-efficient approach for synthesizing non-precious metal catalysts with oxygen vacancies to catalyze the OER process more efficiently.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1726-1736"},"PeriodicalIF":6.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140063","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
Molecular engineering-facilitated AIE-active type-I photosensitizers for photothermal imaging-guided photodynamic therapy† 用于光热成像引导光动力治疗的分子工程促进aie活性i型光敏剂
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-23 DOI: 10.1039/D5QM00094G
Xiufeng Li, Shasha Zhang, Pengli Gu, Xinyi Zhang and Ju Mei
{"title":"Molecular engineering-facilitated AIE-active type-I photosensitizers for photothermal imaging-guided photodynamic therapy†","authors":"Xiufeng Li, Shasha Zhang, Pengli Gu, Xinyi Zhang and Ju Mei","doi":"10.1039/D5QM00094G","DOIUrl":"https://doi.org/10.1039/D5QM00094G","url":null,"abstract":"<p >Despite its multiple advantages, the application of fluorescence imaging-guided photodynamic therapy based on type-II photosensitizers is still restricted by the autofluorescence of organisms and the hypoxic microenvironment of tumors. Optical agents with photothermal imaging ability and radical-based type-I reactive oxygen species (ROS) generation capability, which are exempted from the autofluorescence interference and hypoxia limitation, are thus highly desirable. In this study, we propose a molecular engineering strategy based on electron donor (D)–acceptor (A) systems, which promotes the photothermal conversion as well as the generation of type I ROS by manipulating the electron-donating and electron-withdrawing groups to boost the intersystem crossing and enhance nonradiative decay. Among the four designed D–A conjugated molecules, TPACzPy, composed of electron-donating 9-ethyl-<em>N</em>,<em>N</em>-bis(4-methoxyphenyl)-9<em>H</em>-carbazol-2-amine, π-bridging (2<em>Z</em>,2′<em>Z</em>)-2,2′-(1,4-phenylene)bis(but-2-enenitrile), and electron-withdrawing 1-ethylpyridin-1-ium, exhibits the best comprehensive performance. This compound was thus prepared into biocompatible nanoparticles <em>via</em> a nanoprecipitation method with Pluronic F-127 as the encapsulation matrix. The photothermal performance under 660 nm-laser irradiation and the type I photosensitizing properties under white-light irradiation enable the photothermal imaging-guided photodynamic therapy of 4T1 tumors by the TPACzPy nanoparticles, demonstrating the potential of TPACzPy to be applied in cancer diagnosis and inhibition of tumors.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 12","pages":" 1906-1916"},"PeriodicalIF":6.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244044","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
Designing infrared nonlinear optical crystals, Sr2MgSn2OS6 and Sr2SnGa2OS6, with hybrid anionic frameworks via a double substitution strategy† 采用双取代策略设计具有混合阴离子框架的Sr2MgSn2OS6和Sr2SnGa2OS6红外非线性光学晶体
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-22 DOI: 10.1039/D5QM00059A
Zhen Qian, Deman Kong, Hongping Wu, Hongwei Yu, Zhanggui Hu, Jiyang Wang and Yicheng Wu
{"title":"Designing infrared nonlinear optical crystals, Sr2MgSn2OS6 and Sr2SnGa2OS6, with hybrid anionic frameworks via a double substitution strategy†","authors":"Zhen Qian, Deman Kong, Hongping Wu, Hongwei Yu, Zhanggui Hu, Jiyang Wang and Yicheng Wu","doi":"10.1039/D5QM00059A","DOIUrl":"https://doi.org/10.1039/D5QM00059A","url":null,"abstract":"<p >Infrared nonlinear optical (IR NLO) crystals are crucial for advancing laser technology; however, designing and synthesizing high-performance IR NLO materials remain challenging. Heteroanionic materials effectively integrate the advantages of single-anionic counterparts, offering a promising route for synthesizing high-performance IR NLO materials. Herein, two novel heteroanionic oxychalcogenide IR NLO crystals, Sr<small><sub>2</sub></small>MgSn<small><sub>2</sub></small>OS<small><sub>6</sub></small> and Sr<small><sub>2</sub></small>SnGa<small><sub>2</sub></small>OS<small><sub>6</sub></small>, are synthesized by a double substitution strategy based on the single-anionic oxide Sr<small><sub>2</sub></small>MgSi<small><sub>2</sub></small>O<small><sub>7</sub></small>. They exhibit excellent optical performance, including a large phase-matched (PM) second harmonic generation (SHG) response (2 × AgGaS<small><sub>2</sub></small>), a wide optical band gap (<em>E</em><small><sub>g</sub></small> &gt; 3.0 eV), a large birefringence (Δ<em>n</em> = 0.128–0.173), and a high laser-induced damage threshold (7 × AgGaS<small><sub>2</sub></small>). The structure–performance relationship analysis indicates that these excellent performances are mainly attributed to the hybridized functional moieties. These findings strongly indicate the potential of these materials as suitable IR NLO candidates, and the strategy of double substitution proves to be effective for designing novel high-performance NLO crystals.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1737-1746"},"PeriodicalIF":6.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140064","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}
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