Materials Today Chemistry最新文献_第8页

Nanostructures and nanoparticles as medical diagnostic imaging contrast agents: A review 作为医学诊断成像造影剂的纳米结构和纳米粒子：综述

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-08-05 DOI: 10.1016/j.mtchem.2024.102233

Nikiwe Mhlanga, Ntsoaki Mphuthi, Hendriëtte Van der Walt, Sanele Nyembe, Teboho Mokhena, Lucky Sikhwivhilu

{"title":"Nanostructures and nanoparticles as medical diagnostic imaging contrast agents: A review","authors":"Nikiwe Mhlanga, Ntsoaki Mphuthi, Hendriëtte Van der Walt, Sanele Nyembe, Teboho Mokhena, Lucky Sikhwivhilu","doi":"10.1016/j.mtchem.2024.102233","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102233","url":null,"abstract":"Global health continues to be under threat evidenced by the recent surge of Covid-19 that crippled the world's biosecurity. Prevention, diagnosis, treatment and management of diseases are crucial in maintaining global health. Nanostructures and nanoparticles merited by a plethora of outstanding properties are cementing themselves in nanomedicine. The account examines their possible application in imaging diagnostics using the different modalities: magnetic resonance, optical imaging, ultrasonic molecular imaging, photoacoustic imaging, X-ray computed tomography and nuclear molecular imaging. The nanostructures are proposed as the next-generation contrast agents for enhanced imaging purposes. Hence, their stability, body clearance, biocompatibility and blood half-life are highlighted in this review. The next generation of proposed nanostructure-based contrast agents is not devoid of challenges. Multimodal imaging and engineered nanostructure composites are proposed mitigations in pursuit of biocompatible, blood pools, and enhanced imaging contrast agents with reasonable body clearance.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrophobic MIL-101@PDMS composite confined Frustrated Lewis pairs: Excellent water-tolerance emerged in the hydrogenation of carbonyl compounds 疏水性 MIL-101@PDMS 复合材料封闭了受挫路易斯对：在羰基化合物氢化过程中表现出卓越的耐水性

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-08-03 DOI: 10.1016/j.mtchem.2024.102224

Miaomiao Chen, Hailong Xu, Xiaoyu Liang, Huili Zhao, Xinkui Wang, Min Ji, Min Wang

{"title":"Hydrophobic MIL-101@PDMS composite confined Frustrated Lewis pairs: Excellent water-tolerance emerged in the hydrogenation of carbonyl compounds","authors":"Miaomiao Chen, Hailong Xu, Xiaoyu Liang, Huili Zhao, Xinkui Wang, Min Ji, Min Wang","doi":"10.1016/j.mtchem.2024.102224","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102224","url":null,"abstract":"Frustrated Lewis pairs (FLPs) have demonstrated remarkable efficacy in metal-free hydrogenation, yet necessitate rigorous anhydrous reaction conditions. To address this concern, we propose a novel approach to enhance the water resistance of FLP by establishing a hydrophobic microenvironment. The inclusion of B(CF) within a MIL-101 framework, enveloped by hydrophobic polydimethylsiloxane (PDMS) coating, facilitates the in-situ formation of FLP in a solvent of 1,4-dioxane. The hydrophobic PDMS effectively prevents the ingress of water into the MOF nanocages, while simultaneously enabling the diffusion of 1,4-dioxane into the MOF nanocages for FLP formation. Consequently, the as-prepared FLP/MIL-101@PDMS composite exhibits superior water tolerance in the hydrogenation of benzaldehyde and can be utilized directly in commercially available solvents without necessitating stringent inert conditions. Remarkably, FLP/MIL-101@PDMS showcases unparalleled water tolerance even in the presence of 15 equivalents of water relative to B(CF). This research introduces innovative concepts for designing water-tolerant FLP.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Copper-doped nickel–iron metal/metal oxide electrode with improved performance by promoting synergistic effects in the oxygen evolution reaction 掺铜镍铁金属/金属氧化物电极通过促进氧进化反应中的协同效应提高性能

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-08-01 DOI: 10.1016/j.mtchem.2024.102225

Xiaoyu Gong, Jiawei Ge, Jun Qi, Honghe Ding, Leijie Zhang, Peiyu Ma, Zuohuan Chen, Nian Zhang, Jilong Xu, Lijuan Zhu, Jiaxiang Lu, Guiqiang Li, Junjie Ge, Yifan Ye

引用次数: 0

Development of a sugar-based polyurethane foam colorimetric sensor for E. coli detection 开发用于检测大肠杆菌的糖基聚氨酯泡沫比色传感器

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-08-01 DOI: 10.1016/j.mtchem.2024.102193

Marta Santos, Igor Tiago, Marcos Mariz, Paula Ferreira, Susana Alarico

引用次数: 0

Sensing diversity in halogen-bonded multi-stimuli responsive materials: Light, pH, magnetism, and electron-rich species 卤素键合多刺激响应材料的传感多样性：光、pH 值、磁性和富电子物种

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-07-31 DOI: 10.1016/j.mtchem.2024.102234

Pierre Frangville, Arvin Sain Tanwar, Shiv Kumar, Michel Gelbcke, Nathalie Wauthoz, Sergey Basov, Margriet J. Van Bael, Kristof Van Hecke, Franck Meyer

{"title":"Sensing diversity in halogen-bonded multi-stimuli responsive materials: Light, pH, magnetism, and electron-rich species","authors":"Pierre Frangville, Arvin Sain Tanwar, Shiv Kumar, Michel Gelbcke, Nathalie Wauthoz, Sergey Basov, Margriet J. Van Bael, Kristof Van Hecke, Franck Meyer","doi":"10.1016/j.mtchem.2024.102234","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102234","url":null,"abstract":"The present study delves into the synthesis and characterization of multi-stimuli responsive polymers, demonstrating their sensitivity towards magnetic field, pH level, light irradiation, and electron-rich species through halogen bonding (XB). Detailed X-ray analyses of two azobenzene derivatives, each incorporating a tetrafluoroiodobenzene group, provided the compelling evidence of engagement of the building blocks in the formation of halogen bonds. Interestingly, the investigation of an ammonium analog, featuring a tetrahalogenoferrate(III) anion, not only showcased a magnetic response even upheld its ability to undergo isomerization under UV irradiation. These functional properties were subsequently harnessed in the form of multi-responsive compounds through the random quaternization of poly(2-(N,-dimethylamino) ethyl methacrylate) (PDMAEMA), and by employing varying proportions of XB-donor dye (8, 11, 15, 21, and 43 %) followed by magnetic anion exchange. Leveraging the presence of free ternary amino groups and diazobenzene moieties, the resulting polymers demonstrated pronounced sensitivity towards a variation of pH and UV light stimuli, while a careful modulation of magnetic susceptibility was found to be directly proportional to the degree of quaternization. An NMR titration, conducted using a synthetic intermediate, revealed the formation of I⋯Cl‾ interactions in the solution state, thereby underscoring the materials' sensitivity to electron-rich species. Moreover, the electron microscopic analysis displayed an alteration in morphology upon the application of a magnetic field and UV irradiation. Thus, the presented strategic framework offers an avenue for the development of multi-stimuli responsive materials for remotely controlled smart devices to act in response to a diverse set of four stimuli, and heralding a significant advancement in the realm of responsive material design.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advances in zwitterionic polymers-based non-fouling coating strategies for biomedical applications 基于齐聚物的生物医学应用防污涂层策略的最新进展

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-07-31 DOI: 10.1016/j.mtchem.2024.102232

Jiayao Wen, Susu Huang, Qiaoying Hu, Wei He, Zhijian Wei, Lei Wang, Jinghui Lu, Xuetian Yue, Shaojie Men, Chengxu Miao, Zhijing He, Xiaoye Yang, Guangxi Zhai, Junjie Li, Lei Ye

{"title":"Recent advances in zwitterionic polymers-based non-fouling coating strategies for biomedical applications","authors":"Jiayao Wen, Susu Huang, Qiaoying Hu, Wei He, Zhijian Wei, Lei Wang, Jinghui Lu, Xuetian Yue, Shaojie Men, Chengxu Miao, Zhijing He, Xiaoye Yang, Guangxi Zhai, Junjie Li, Lei Ye","doi":"10.1016/j.mtchem.2024.102232","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102232","url":null,"abstract":"Biological contamination seriously restricts the development and application of medical devices, causing severe health threats and economic losses. Non-specific protein adhesion is generally considered to be the first step in biological contamination, and it is well acknowledged that hydrophilic surfaces can effectively reduce protein adsorption. Based on this principle, many anti-biofouling materials have been developed. In recent years, zwitterionic polymers with ultra-low protein adsorption and excellent biocompatibility have made them a research hotspot for the new generation of antifouling materials and attracted great attention in biomedical applications. The repeating unit carries a pair of opposite charges, and the whole molecule is electrically neutral, showing super-hydrophilic properties. Coating strategies are considered to be a promising solution to the biofouling of medical devices due to their low impact on substrates and their ability to adapt to a variety of complex surfaces. Therefore, the zwitterionic-based coating layer is the most effective way and promising candidate to solve biological contamination. In this review, we summarized the formation process of biological contamination, antifouling surface properties, up-to-date zwitterionic monomers, the strategies for non-fouling coating preparation, and their applications in biomedical fields.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial modulation by ammonium salts in hole transport layer free CsPbBr3 solar cells with fill factor over 86 % 铵盐在无空穴传输层铯硼铍太阳能电池中的界面调制，填充因子超过 86

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-07-30 DOI: 10.1016/j.mtchem.2024.102228

Yang Wang, Anling Tong, Yuhong Wang, Kaibo Liang, Wenhao Zhu, Yunjia Wu, Weihai Sun, Jihuai Wu

引用次数: 0

Recent advances in the application of nanoparticle-based strategies for water remediation as a novel clean technology–A comprehensive review 基于纳米粒子的水修复策略作为一种新型清洁技术在应用方面的最新进展--综述

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-07-30 DOI: 10.1016/j.mtchem.2024.102226

Krishna Kumar Yadav, Marina M.S. Cabral-Pinto, Amel Gacem, Ahmed M. Fallatah, Balasubramani Ravindran, Shahabaldin Rezania, Jari S. Algethami, Lienda Bashier Eltayeb, Mohamed Abbas, Tasneem Hassan Al-shareef, Vandana Vinayak, Cao Truong Son, Maha Awjan Alreshidi, Joan Manuel Rodríguez-Díaz, Raad Z. Homod

{"title":"Recent advances in the application of nanoparticle-based strategies for water remediation as a novel clean technology–A comprehensive review","authors":"Krishna Kumar Yadav, Marina M.S. Cabral-Pinto, Amel Gacem, Ahmed M. Fallatah, Balasubramani Ravindran, Shahabaldin Rezania, Jari S. Algethami, Lienda Bashier Eltayeb, Mohamed Abbas, Tasneem Hassan Al-shareef, Vandana Vinayak, Cao Truong Son, Maha Awjan Alreshidi, Joan Manuel Rodríguez-Díaz, Raad Z. Homod","doi":"10.1016/j.mtchem.2024.102226","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102226","url":null,"abstract":"In the contemporary period characterized by limited availability of water resources, the efficient treatment of wastewater is a fundamental requirement for the advancement of the economy. The development and implementation of modern wastewater treatment technologies that exhibit high efficiency and low capital requirements are of utmost importance. Currently, nanotechnology is a highly prioritized field of research in numerous nations because of its significant potential and economic implications. Nanotechnology has shown great potential in the field of water treatment and remediation. Through the utilization of different nanomaterials, water can be purified using various mechanisms. These mechanisms include the adsorption of heavy metals, dyes, and other contaminants, as well as the inactivation and elimination of pathogens. Additionally, nanotechnology enables the conversion of harmful materials into less harmful compounds, further enhancing its effectiveness in water treatment and remediation. This article aims to present a comprehensive review of contemporary advancements in nanotechnologies utilized for water and wastewater treatment. The discussed techniques include adsorption, photocatalytic water treatment methods such as nanoelectro-catalysts and Fenton catalysts, disinfection, nanosponges, nanomembrane, aerobic digestion, and core-shell plasmonic nanosensors. Furthermore, the article provides insights into the various opportunities, limitations, and future prospects associated with these advancements.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141886893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyether-based composite solid-state electrolyte to realize stable high-rate cycling for high-voltage lithium metal batteries at room temperature 基于聚醚的复合固态电解质实现高压金属锂电池在室温下的稳定高倍率循环

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-07-30 DOI: 10.1016/j.mtchem.2024.102219

Xinhao Li, Chen Wang, Wenzheng Nan, Sikan Peng, Jin Liu, Shaojiu Yan

{"title":"Polyether-based composite solid-state electrolyte to realize stable high-rate cycling for high-voltage lithium metal batteries at room temperature","authors":"Xinhao Li, Chen Wang, Wenzheng Nan, Sikan Peng, Jin Liu, Shaojiu Yan","doi":"10.1016/j.mtchem.2024.102219","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102219","url":null,"abstract":"Polyether electrolytes, which possess benefits in terms of lithium salt solubility, compatibility with lithium metal, and material availability, are promising candidate materials for solid-state lithium metal batteries with high safety and specific energy. However, achieving stable cycling at high rates under room temperature conditions for high-voltage lithium metal solid-state batteries is a significant challenge. In this study, a polyether-based composite solid-state electrolyte was fabricated via in situ polymerization, and a novel polyether matrix (PDSi) was synthesized by copolymerization of 1,3-dioxolane (DOL) and 3-(glycidoxypropyl)triethoxysilane (GPTES). The triethoxysilicon groups of PDSi improve the antioxidant capacity of polyether and interact with anionic groups, thereby enabling a wide electrochemical window of 5.5 V and a high lithium-ion transference number t of 0.56 at room temperature. In addition, a prepared PDSi@LLZTO electrolyte with an asymmetric structure mitigated the side reaction between the LLZTO ceramic filler and lithium. Here, PDSi@LLZTO exhibited a lithium-ion transference number of 0.67 and ionic conductivity of 1.28 × 10 S cm at 20 °C. More importantly, the Li|PDSi@LLZTO|NCM523 cell demonstrated excellent capacity retention of 83.9 % after 200 cycles at a high-rate discharge of 3C. The proposed material and structure design provide a unique perspective for the development of an effective polymer-based electrolyte for high-voltage lithium metal batteries.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remarkable broadband NIR emission of BaCa2MgSi2O8:Cr3+ phosphors and Eu2+ co-doping modulation BaCa2MgSi2O8:Cr3+ 荧光粉的显著宽带近红外发射和 Eu2+ 共掺调制

IF 7.3 2区化学

Materials Today Chemistry Pub Date : 2024-07-30 DOI: 10.1016/j.mtchem.2024.102214

Dejian Hou, Zaidong Chen, Rui Huang, Jianhong Dong, Wenxing Zhang, Hongliang Li, Huihong Lin, Jin-Yan Li, Lei Zhou, Mingmei Wu

{"title":"Remarkable broadband NIR emission of BaCa2MgSi2O8:Cr3+ phosphors and Eu2+ co-doping modulation","authors":"Dejian Hou, Zaidong Chen, Rui Huang, Jianhong Dong, Wenxing Zhang, Hongliang Li, Huihong Lin, Jin-Yan Li, Lei Zhou, Mingmei Wu","doi":"10.1016/j.mtchem.2024.102214","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102214","url":null,"abstract":"Developing high-performance broadband NIR (near-infrared) phosphors remains a crucial pursuit for the next-generation smart NIR light source. This study demonstrates the successful synthesis of BaCaMgSiO:Cr phosphors exhibiting exceptional broadband NIR emission a high-temperature solid-state reaction. Notably, the 0.03Cr doped composition, under 485 nm excitation, shines with a remarkable broadband emission spanning 700 nm–1100 nm and boasts a full width at half maximum (FWHM) of 134 nm. This work meticulously explores the intricate interplay between Cr doping concentration, temperature, crystal field strength, and the Huang-Rhys parameter, shedding light on the underlying luminescence mechanisms. Moreover, the BaCaMgSiO:0.03Cr phosphor exhibits exceptional thermal stability, retaining approximately 70 % of its integrated emission intensity at 425 K compared to room temperature. To further expand the excitation range, Eu was introduced as a co-dopant, successfully broadening the excitation spectrum to encompass nearly the entire ultraviolet–visible region (ranging from 250 nm to 750 nm). The presence of Eu→Cr energy transfer was elucidated, and the impact of Eu doping was thoroughly investigated. Moreover, the synthesized phosphor has been successfully integrated into a NIR phosphor-converted light-emitting diode (pc-LED), showcasing their potential application in the realms of night vision and NIR vascular imaging. These findings offer invaluable insights into Cr luminescence behavior and pave the way for the development of novel NIR phosphors with enhanced functionalities, propelling us closer to the realization of next-generation smart lighting solutions.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0