Pub Date : 2024-08-21DOI: 10.1016/j.mtchem.2024.102262
Azad H. Alshatteri, Sameera Sh Mohammed Ameen, Dnya Latif, Yousif O. Mohammad, Khalid M. Omer
Nanozymes, synthetic nano-scale materials with enzyme-like behavior, have shown remarkable advancements and widespread utilization across various applications. However, the majority of nanozymes require precursor of synthetic-chemicals, which are sometimes expensive and undergo complicated preparations and tedious purification procedures. Therefore, it is of utmost significance to find an enzyme mimic that is affordable, abundant, highly efficient, and sustainable for various applications in biomedicine, environmental sciences, and the food industry. We prove the efficient peroxidase-like activities of the earthly available mineral, barunite-II. The braunite-II mineral micro-nanoparticles (NB) were prepared via physical milling. The enzyme mimetic activity of mineral nanoparticles, referred to as “mineralzyme,” could oxidize the chromogenic blue color of TMB (3,3′,5,5′-tetramethylbenzidine) to oxTMB (3,3′,5,5′-tetramethylbenzidine oxide). Michaelis-Menten constant (K) and maximum velocity (V) were 135 mM and 62.73 mM min for TMB as a substrate, 139.2 mM, and 2.69 mM min for HO as a substrate. The K values are much lower than those for HRP. We accurately quantified the total antioxidant capacity in seminal fluid samples from infertile patients using the peroxidase activity of the mineral nanoparticles. This investigation will open new avenues to explore the realm of mineralzyme, revealing its significant potential for a wide range of applications involving diverse enzymatic behaviors.
纳米酶是一种具有类似酶行为的合成纳米级材料，在各种应用领域都取得了显著的进步和广泛的应用。然而，大多数纳米酶需要前体合成化学品，有时价格昂贵，而且需要经过复杂的制备和繁琐的纯化程序。因此，为生物医学、环境科学和食品工业的各种应用找到一种价格低廉、资源丰富、高效且可持续的酶模拟物至关重要。我们证明了地球上可获得的矿物--巴鲁尼特-II 的高效过氧化物酶样活性。我们通过物理研磨法制备了巴鲁尼特-II 矿物微纳米颗粒（NB）。矿物质纳米颗粒的酶模拟活性被称为 "矿物质酶"，它能将发蓝的 TMB（3,3′,5,5′-四甲基联苯胺）氧化成 oxTMB（3,3′,5,5′-四甲基联苯胺氧化物）。以 TMB 为底物的迈克尔斯-门顿常数（K）和最大速度（V）分别为 135 mM 和 62.73 mM min，以 HO 为底物的迈克尔斯-门顿常数（K）和最大速度（V）分别为 139.2 mM 和 2.69 mM min。K 值远远低于 HRP 的 K 值。我们利用矿物纳米粒子的过氧化物酶活性准确地量化了不育患者精液样本中的总抗氧化能力。这项研究将为探索矿物酶领域开辟新的途径，揭示其在涉及各种酶行为的广泛应用中的巨大潜力。
{"title":"Nanoscale mineral as a novel class enzyme mimic (mineralzyme) with total antioxidant capacity detection: Colorimetric and smartphone-based approaches","authors":"Azad H. Alshatteri, Sameera Sh Mohammed Ameen, Dnya Latif, Yousif O. Mohammad, Khalid M. Omer","doi":"10.1016/j.mtchem.2024.102262","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102262","url":null,"abstract":"Nanozymes, synthetic nano-scale materials with enzyme-like behavior, have shown remarkable advancements and widespread utilization across various applications. However, the majority of nanozymes require precursor of synthetic-chemicals, which are sometimes expensive and undergo complicated preparations and tedious purification procedures. Therefore, it is of utmost significance to find an enzyme mimic that is affordable, abundant, highly efficient, and sustainable for various applications in biomedicine, environmental sciences, and the food industry. We prove the efficient peroxidase-like activities of the earthly available mineral, barunite-II. The braunite-II mineral micro-nanoparticles (NB) were prepared via physical milling. The enzyme mimetic activity of mineral nanoparticles, referred to as “mineralzyme,” could oxidize the chromogenic blue color of TMB (3,3′,5,5′-tetramethylbenzidine) to oxTMB (3,3′,5,5′-tetramethylbenzidine oxide). Michaelis-Menten constant (K) and maximum velocity (V) were 135 mM and 62.73 mM min for TMB as a substrate, 139.2 mM, and 2.69 mM min for HO as a substrate. The K values are much lower than those for HRP. We accurately quantified the total antioxidant capacity in seminal fluid samples from infertile patients using the peroxidase activity of the mineral nanoparticles. This investigation will open new avenues to explore the realm of mineralzyme, revealing its significant potential for a wide range of applications involving diverse enzymatic behaviors.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"29 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204505","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}
Pub Date : 2024-08-21DOI: 10.1016/j.mtchem.2024.102250
Deimer R. Gómez-Mejía, Juan C. Expósito-Gálvez, Gerko Oskam, Daniel Olguín-Melo, Omar Jiménez-Sandoval
Mullite-type BiFeO has been little explored in thin film form as a photoanode for photoelectrochemical water splitting. In this study, BiFeO thin films have been prepared using the sol-gel technique from a simple precursor solution based on the corresponding metal salts, acetic acid, and polyvinyl alcohol. The films were deposited by dip-coating onto fluorine-doped tin oxide substrates and dried at 350 °C, repeating the dipping-drying cycle six times, and finally sintered at 600 °C. The films were characterized by GIXRD, revealing the formation of the material in its orthorhombic phase. Raman spectroscopy showed the A and B vibrational modes, validating the formation of the bismuth iron oxide. UV–Vis transmittance measurements revealed that the material exhibits two optical transitions: a direct band gap of 2.86 eV and an indirect band gap of 1.98 eV. FESEM micrographs and AFM images showed a uniform nanostructured surface morphology. The photoelectrochemical properties of the BiFeO films were studied using cyclic voltammetry and chronoamperometry with front side illumination, demonstrating the stability of the material in aqueous media and the generation of photocurrent in the presence of HO. Furthermore, results from intensity-modulated photocurrent spectroscopy (IMPS) revealed that the photocurrent is limited by both bulk and surface recombination and a short hole diffusion length.
以薄膜形式将莫来石型 BiFeO 用作光电化学分水的光阳极的研究还很少。本研究采用溶胶-凝胶技术，从基于相应金属盐、醋酸和聚乙烯醇的简单前驱体溶液中制备了 BiFeO 薄膜。薄膜通过浸涂沉积在掺氟氧化锡基底上，然后在 350 ℃ 下干燥，重复浸涂-干燥循环六次，最后在 600 ℃ 下烧结。利用 GIXRD 对薄膜进行了表征，结果表明材料是以正交相形成的。拉曼光谱显示了 A 和 B 振荡模式，验证了氧化铁铋的形成。紫外-可见透射测量显示，该材料有两个光学转变：2.86 eV 的直接带隙和 1.98 eV 的间接带隙。FESEM 显微照片和 AFM 图像显示了均匀的纳米结构表面形态。研究人员使用循环伏安法和计时电流法研究了 BiFeO 薄膜的光电化学特性，结果表明该材料在水介质中具有稳定性，并能在 HO 存在的情况下产生光电流。此外，强度调制光电流光谱法（IMPS）的研究结果表明，光电流受到体重组和表面重组以及短空穴扩散长度的限制。
{"title":"Synthesis, characterization and photoelectrochemical performance of Bi2Fe4O9 thin films","authors":"Deimer R. Gómez-Mejía, Juan C. Expósito-Gálvez, Gerko Oskam, Daniel Olguín-Melo, Omar Jiménez-Sandoval","doi":"10.1016/j.mtchem.2024.102250","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102250","url":null,"abstract":"Mullite-type BiFeO has been little explored in thin film form as a photoanode for photoelectrochemical water splitting. In this study, BiFeO thin films have been prepared using the sol-gel technique from a simple precursor solution based on the corresponding metal salts, acetic acid, and polyvinyl alcohol. The films were deposited by dip-coating onto fluorine-doped tin oxide substrates and dried at 350 °C, repeating the dipping-drying cycle six times, and finally sintered at 600 °C. The films were characterized by GIXRD, revealing the formation of the material in its orthorhombic phase. Raman spectroscopy showed the A and B vibrational modes, validating the formation of the bismuth iron oxide. UV–Vis transmittance measurements revealed that the material exhibits two optical transitions: a direct band gap of 2.86 eV and an indirect band gap of 1.98 eV. FESEM micrographs and AFM images showed a uniform nanostructured surface morphology. The photoelectrochemical properties of the BiFeO films were studied using cyclic voltammetry and chronoamperometry with front side illumination, demonstrating the stability of the material in aqueous media and the generation of photocurrent in the presence of HO. Furthermore, results from intensity-modulated photocurrent spectroscopy (IMPS) revealed that the photocurrent is limited by both bulk and surface recombination and a short hole diffusion length.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"19 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204518","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}
Pub Date : 2024-08-21DOI: 10.1016/j.mtchem.2024.102258
Maitri Chakraborty, Arikketh Devi
Tissue damage or the loss of tissue in certain traumatic situations or unexpected events can severely impact the body's overall health and well-being. Synthetic and natural materials have a wide range of applications in the biomedical field, including bioactuators, biosensors, neural implants, drug delivery systems, and tissue engineering scaffolds. This review focuses specifically on these materials for tissue engineering applications. Tissue engineering scaffolds act as an extracellular matrix that interacts with cells before forming new tissue. The chemical and structural characteristics of scaffolds are crucial in creating an ideal three-dimensional structure for tissue engineering applications. Scaffolds used for tissue engineering should possess proper architecture and mechanical properties, as well as support cell adhesion, proliferation, and differentiation. A significant amount of research has been conducted on the topic of various scaffold properties, such as surface topographic features (roughness and hydrophilicity) and scaffold microstructures (pore size, porosity, pore interconnectivity, and pore and fiber architectures) that influence cell-scaffold interactions. This review also highlights on the techniques used to create scaffolds with the required property of biocompatibility with tissues, as well as its desired properties and applications where scaffolds are currently being used in modern times.
{"title":"Landscape of scaffolds from advanced synthesis to tissue engineering","authors":"Maitri Chakraborty, Arikketh Devi","doi":"10.1016/j.mtchem.2024.102258","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102258","url":null,"abstract":"Tissue damage or the loss of tissue in certain traumatic situations or unexpected events can severely impact the body's overall health and well-being. Synthetic and natural materials have a wide range of applications in the biomedical field, including bioactuators, biosensors, neural implants, drug delivery systems, and tissue engineering scaffolds. This review focuses specifically on these materials for tissue engineering applications. Tissue engineering scaffolds act as an extracellular matrix that interacts with cells before forming new tissue. The chemical and structural characteristics of scaffolds are crucial in creating an ideal three-dimensional structure for tissue engineering applications. Scaffolds used for tissue engineering should possess proper architecture and mechanical properties, as well as support cell adhesion, proliferation, and differentiation. A significant amount of research has been conducted on the topic of various scaffold properties, such as surface topographic features (roughness and hydrophilicity) and scaffold microstructures (pore size, porosity, pore interconnectivity, and pore and fiber architectures) that influence cell-scaffold interactions. This review also highlights on the techniques used to create scaffolds with the required property of biocompatibility with tissues, as well as its desired properties and applications where scaffolds are currently being used in modern times.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"3 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204515","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}
Pub Date : 2024-08-20DOI: 10.1016/j.mtchem.2024.102246
Shubham Pant, Renuka Vijayaraghavan, Sravanthi Loganathan, Ravi Babu Valapa
The current work aims to formulate novel bioactive and biocompatible 3D printed poly (-lactic acid)/Beta tri calcium phosphate composite scaffolds reinforced with different types of mesoporous silica materials [PLA/-TCP/MSMs] for bone regeneration application, which is not envisaged earlier. The bioink encompassing 30 % organic content (PLA) and 70 % inorganic content (-TCP and MSMs) is formulated and their rheological characteristics are evaluated. Optimization of process conditions for 3D printed PLA composite scaffolds was done and pneumatic extrusion is performed. The physico-chemical properties as well as biological characteristics were assessed for 3D printed PLA/-TCP/MSMs based composite scaffolds. The existence of -TCP and MSMs incorporated into PLA matrix was observed to fasten the formation of hydroxyapatite, as evidenced by bioactivity assessment. The cytocompatibility analysis revealed that the 3D printed PLA/-TCP/MSMs composite scaffolds exhibit suitable biocompatible behaviour and osteogenic potential. The calcium mineralization and ALP expression were also noticed in higher levels for 3D printed PLA/-TCP/MSMs composite scaffolds. Gene expression analysis confirmed the expression of COL1, OCN, BMP-2 and RUNX2 on 3D printed PLA/-TCP/MSMs composite scaffolds. The results speculate that this novel formulation closely resembling the composition of natural bone might have promising applications in terms of bone tissue engineering.
{"title":"3D-bioprinted poly(lactic acid)/β-TCP/mesoporous silica scaffolds: An investigation on in-vitro bioactivity and osteogenesis characteristics","authors":"Shubham Pant, Renuka Vijayaraghavan, Sravanthi Loganathan, Ravi Babu Valapa","doi":"10.1016/j.mtchem.2024.102246","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102246","url":null,"abstract":"The current work aims to formulate novel bioactive and biocompatible 3D printed poly (-lactic acid)/Beta tri calcium phosphate composite scaffolds reinforced with different types of mesoporous silica materials [PLA/-TCP/MSMs] for bone regeneration application, which is not envisaged earlier. The bioink encompassing 30 % organic content (PLA) and 70 % inorganic content (-TCP and MSMs) is formulated and their rheological characteristics are evaluated. Optimization of process conditions for 3D printed PLA composite scaffolds was done and pneumatic extrusion is performed. The physico-chemical properties as well as biological characteristics were assessed for 3D printed PLA/-TCP/MSMs based composite scaffolds. The existence of -TCP and MSMs incorporated into PLA matrix was observed to fasten the formation of hydroxyapatite, as evidenced by bioactivity assessment. The cytocompatibility analysis revealed that the 3D printed PLA/-TCP/MSMs composite scaffolds exhibit suitable biocompatible behaviour and osteogenic potential. The calcium mineralization and ALP expression were also noticed in higher levels for 3D printed PLA/-TCP/MSMs composite scaffolds. Gene expression analysis confirmed the expression of COL1, OCN, BMP-2 and RUNX2 on 3D printed PLA/-TCP/MSMs composite scaffolds. The results speculate that this novel formulation closely resembling the composition of natural bone might have promising applications in terms of bone tissue engineering.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"18 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204520","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}
Pub Date : 2024-08-20DOI: 10.1016/j.mtchem.2024.102235
Qianying Huang, Ying Chen, Min Ye, Shuze Zhuang, Aiguo Zhong, Jianqiang Liu, Govindhan Maduraiveeran, Yanqiong Peng, Yong Huang
The process of healing a wound is multifaceted and organized that needs the organization and support of countless biological activities to achieve effective repair of damage. Coagulation, inflammation, proliferation, and remodeling represent its four stages. However, in the method of healing behavior disorders often occur, leading to tissue damage or healing disorders. Because of the associated morbidity and socioeconomic cost, managing wound healing requires innovative methods that are both clinically and financially demanding. Therefore, it is required to discover and research new drugs or treatments for quicker wound healing. Metal-organic frameworks (MOFs) are porous combined materials comprised of ions of metal connected with organic moieties. MOFs are not only extensively employed in various fields but also have prodigious potential for encouraging healing of wound. The present review encapsulates the advancements of MOF-derived materials in upholding wound healing processes. In particular, the physiopathological mechanism of wound healing improves the comprehension of biological and clinical mechanisms to repair a wound. The present review highlights the utilization of MOFs through surface engineering for effective wound healing, and surface-functional characteristics. Application materials include hydrogels, nanofibers, and microneedles that classify MOFs. The possible biomedical applications of MOFs are highlighted, including metal delivery systems, catalytic enzymes, and drug delivery. Finally, the challenges and possible outlook strategies for the progress of MOFs in wound healing through the integration of materials and biological interfaces are described.
{"title":"Metal-organic framework-based dressings: Application and opportunities in wound healing","authors":"Qianying Huang, Ying Chen, Min Ye, Shuze Zhuang, Aiguo Zhong, Jianqiang Liu, Govindhan Maduraiveeran, Yanqiong Peng, Yong Huang","doi":"10.1016/j.mtchem.2024.102235","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102235","url":null,"abstract":"The process of healing a wound is multifaceted and organized that needs the organization and support of countless biological activities to achieve effective repair of damage. Coagulation, inflammation, proliferation, and remodeling represent its four stages. However, in the method of healing behavior disorders often occur, leading to tissue damage or healing disorders. Because of the associated morbidity and socioeconomic cost, managing wound healing requires innovative methods that are both clinically and financially demanding. Therefore, it is required to discover and research new drugs or treatments for quicker wound healing. Metal-organic frameworks (MOFs) are porous combined materials comprised of ions of metal connected with organic moieties. MOFs are not only extensively employed in various fields but also have prodigious potential for encouraging healing of wound. The present review encapsulates the advancements of MOF-derived materials in upholding wound healing processes. In particular, the physiopathological mechanism of wound healing improves the comprehension of biological and clinical mechanisms to repair a wound. The present review highlights the utilization of MOFs through surface engineering for effective wound healing, and surface-functional characteristics. Application materials include hydrogels, nanofibers, and microneedles that classify MOFs. The possible biomedical applications of MOFs are highlighted, including metal delivery systems, catalytic enzymes, and drug delivery. Finally, the challenges and possible outlook strategies for the progress of MOFs in wound healing through the integration of materials and biological interfaces are described.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"10 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204522","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}
Pub Date : 2024-08-20DOI: 10.1016/j.mtchem.2024.102257
Wentao Sun, Tao Li, Yu Ma, Xiangming Zheng, Yang Liu, Aokui Sun
Aqueous zinc-ion batteries (AZIBs), known for their high discharge capacity, low cost, and relatively low environmental impact, are a promising alternative for advanced energy storage. The exploration of novel electrode materials and the reaction mechanisms in AZIBs have garnered considerable attention. MnCO, as an electrode material, is known for its safety, nontoxic nature, and widespread availability as a raw material. Nevertheless several constraints limit the use of MnCO cathodes, including short lifespan and reduced electrical conductivity. To resolve these shortcomings, compounds containing Zn, Co and Ni elements were added to improve the properties of the MnCO material. The Zn doped MnCO (MnCO–Zn-0.0015 M) was successful synthesized by solvothermal, which presents a special microstructure of spherical shell. Not only does the spherical microstructure of the shell enhance the packing density, but the pore configuration within the shell layer also facilitates the insertion and extraction of Zn. The MnCO–Zn-0.0015 M material, operating at a current density of 0.1 A g, exhibited an impressive discharge capacity of 120.4 mAh∙g along with remarkable rate performance. The cathode sustained 75.29 % of its capacity following 1000th cycles at current density of 1.0 A g. Considering these results, the MnCO–Zn-0.0015 M material developed in this study opens a novel avenue for optimizing the use of manganese compounds in aqueous zinc-ion batteries.
锌离子水电池（AZIBs）以其高放电容量、低成本和相对较低的环境影响而著称，是先进能源储存的一种有前途的替代方案。对新型电极材料和 AZIBs 反应机制的探索引起了广泛关注。作为一种电极材料，MnCO 以其安全性、无毒性和广泛的原材料供应而著称。然而，MnCO 阴极的使用受到一些限制，包括寿命短和导电性降低。为了解决这些问题，人们添加了含有 Zn、Co 和 Ni 元素的化合物，以改善 MnCO 材料的性能。通过溶热法成功合成了掺杂锌的 MnCO（MnCO-Zn-0.0015 M），它呈现出球形外壳的特殊微观结构。球形外壳的微观结构不仅提高了堆积密度，而且外壳层内的孔隙结构也有利于锌的插入和提取。MnCO-Zn-0.0015 M 材料在 0.1 A g 的电流密度下工作时，放电容量高达 120.4 mAh∙g ，同时具有显著的速率性能。考虑到这些结果，本研究开发的 MnCO-Zn-0.0015 M 材料为优化锰化合物在水性锌离子电池中的使用开辟了一条新途径。
{"title":"Zn-doped MnCO3 as cathode material for aqueous zinc-ion batteries","authors":"Wentao Sun, Tao Li, Yu Ma, Xiangming Zheng, Yang Liu, Aokui Sun","doi":"10.1016/j.mtchem.2024.102257","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102257","url":null,"abstract":"Aqueous zinc-ion batteries (AZIBs), known for their high discharge capacity, low cost, and relatively low environmental impact, are a promising alternative for advanced energy storage. The exploration of novel electrode materials and the reaction mechanisms in AZIBs have garnered considerable attention. MnCO, as an electrode material, is known for its safety, nontoxic nature, and widespread availability as a raw material. Nevertheless several constraints limit the use of MnCO cathodes, including short lifespan and reduced electrical conductivity. To resolve these shortcomings, compounds containing Zn, Co and Ni elements were added to improve the properties of the MnCO material. The Zn doped MnCO (MnCO–Zn-0.0015 M) was successful synthesized by solvothermal, which presents a special microstructure of spherical shell. Not only does the spherical microstructure of the shell enhance the packing density, but the pore configuration within the shell layer also facilitates the insertion and extraction of Zn. The MnCO–Zn-0.0015 M material, operating at a current density of 0.1 A g, exhibited an impressive discharge capacity of 120.4 mAh∙g along with remarkable rate performance. The cathode sustained 75.29 % of its capacity following 1000th cycles at current density of 1.0 A g. Considering these results, the MnCO–Zn-0.0015 M material developed in this study opens a novel avenue for optimizing the use of manganese compounds in aqueous zinc-ion batteries.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"50 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204519","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}
Pub Date : 2024-08-20DOI: 10.1016/j.mtchem.2024.102259
Ahmed Hazem Abdelhay, Abdulilah Dawoud Bani-Yaseen
The ever-escalating demand for high-performance batteries with increased energy density and cycling capabilities necessitates extensive research in the domain of battery technology. It is safe to say that all the components of a battery: electrodes, electrolytes, binders, separators, and additives, play pivotal roles in determining battery performance. One approach to this issue that has been garnering popularity is the utilization of the supramolecular chemistry of inclusion complexes, such as cyclodextrins (CD), cucurbiturils (CB), calixarenes (CX), and crown ethers (CE). Each of these host molecules offers a unique set of advantages and disadvantages, which are generally reviewed in this paper. The main feature of these host molecules is the possession of hydrophobic cavities that can encapsulate a diverse range of guest molecules, this function enables a multitude of upgrades to different battery components, contributing to an overall enhanced battery performance. This review paper provides an up-to-date overview of the recent advancements in the application of cyclodextrins, cucurbiturils, calixarenes, and crown ethers in the field of batteries. Through this comprehensive examination, we aim to contribute to the ongoing discourse on improving battery performance and addressing the ever-growing energy storage demands.
{"title":"Recent advances and perspectives of supramolecular host-guest systems for electrochemical energy storage","authors":"Ahmed Hazem Abdelhay, Abdulilah Dawoud Bani-Yaseen","doi":"10.1016/j.mtchem.2024.102259","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102259","url":null,"abstract":"The ever-escalating demand for high-performance batteries with increased energy density and cycling capabilities necessitates extensive research in the domain of battery technology. It is safe to say that all the components of a battery: electrodes, electrolytes, binders, separators, and additives, play pivotal roles in determining battery performance. One approach to this issue that has been garnering popularity is the utilization of the supramolecular chemistry of inclusion complexes, such as cyclodextrins (CD), cucurbiturils (CB), calixarenes (CX), and crown ethers (CE). Each of these host molecules offers a unique set of advantages and disadvantages, which are generally reviewed in this paper. The main feature of these host molecules is the possession of hydrophobic cavities that can encapsulate a diverse range of guest molecules, this function enables a multitude of upgrades to different battery components, contributing to an overall enhanced battery performance. This review paper provides an up-to-date overview of the recent advancements in the application of cyclodextrins, cucurbiturils, calixarenes, and crown ethers in the field of batteries. Through this comprehensive examination, we aim to contribute to the ongoing discourse on improving battery performance and addressing the ever-growing energy storage demands.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"41 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204516","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}
Pub Date : 2024-08-17DOI: 10.1016/j.mtchem.2024.102252
Zimeng Zhang, Siqi Huo, Guofeng Ye, Cheng Wang, Qi Zhang, Zhitian Liu
With sustainable development, advanced poly(lactic acid) (PLA) with superior toughness and flame retardancy is highly demanded in various industries, but the current design strategies often fail to achieve such bioplastics. In this work, flame-retardant and tough PLA bioplastics with well-preserved thermal stability and mechanical strength and enhanced UV resistance and soil degradation are prepared by solvent-free, reactive blending of PLA, bio-based epoxidized soyabean oil (ESO) and 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO). With the introduction of 10.0 wt% ESO and 3.0 wt% DOPO, the resultant PLA/10E/3D bioplastic has a high tensile strength of 52.8 MPa, with 26.3 times and 67.5 % increases in elongation at break and impact strength compared to those of PLA due to the toughening effect of ESO and the rigid structure of DOPO. The superior toughness of PLA/10E/3D enables it to outperform previous flame-retardant PLA counterparts. PLA/10E/3D achieves a vertical burning (UL-94) V-0 classification and a limiting oxygen index (LOI) of 27.5 %, indicative of satisfactory flame retardancy. Compared with PLA, PLA/10E/3D maintains high thermal stability and shows significantly enhanced UV-protecting and soil degradation properties. Therefore, this work delivers a green and scalable reactive processing method to create flame-retardant, tough yet strong bioplastics with improved soil decomposition and UV resistance, which contributes to sustainable development.
{"title":"Flame-retardant and tough poly(lactic acid) with well-preserved mechanical strength via reactive blending with bio-plasticizer and phosphorus derivative","authors":"Zimeng Zhang, Siqi Huo, Guofeng Ye, Cheng Wang, Qi Zhang, Zhitian Liu","doi":"10.1016/j.mtchem.2024.102252","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102252","url":null,"abstract":"With sustainable development, advanced poly(lactic acid) (PLA) with superior toughness and flame retardancy is highly demanded in various industries, but the current design strategies often fail to achieve such bioplastics. In this work, flame-retardant and tough PLA bioplastics with well-preserved thermal stability and mechanical strength and enhanced UV resistance and soil degradation are prepared by solvent-free, reactive blending of PLA, bio-based epoxidized soyabean oil (ESO) and 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO). With the introduction of 10.0 wt% ESO and 3.0 wt% DOPO, the resultant PLA/10E/3D bioplastic has a high tensile strength of 52.8 MPa, with 26.3 times and 67.5 % increases in elongation at break and impact strength compared to those of PLA due to the toughening effect of ESO and the rigid structure of DOPO. The superior toughness of PLA/10E/3D enables it to outperform previous flame-retardant PLA counterparts. PLA/10E/3D achieves a vertical burning (UL-94) V-0 classification and a limiting oxygen index (LOI) of 27.5 %, indicative of satisfactory flame retardancy. Compared with PLA, PLA/10E/3D maintains high thermal stability and shows significantly enhanced UV-protecting and soil degradation properties. Therefore, this work delivers a green and scalable reactive processing method to create flame-retardant, tough yet strong bioplastics with improved soil decomposition and UV resistance, which contributes to sustainable development.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"64 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204524","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}
Pub Date : 2024-08-17DOI: 10.1016/j.mtchem.2024.102261
Yi Zhen Qin, Qi Xu
Developing logic gates through mechanical modulation is important to realize the complex functionality in artificial intelligence, artificial neural network and human-machine interface etc. In this work, we put forward a kind of mechanical transistor based on piezotronic effect (MPT) with three-terminal structure (source and drain at two sides of semiconductor film, and the top gate electrode forming Schottky contact with semiconductor). Different from the past piezotronic devices, it works based on the channel width regulation by the piezoelectric charges at the interface between top electrode and semiconductor below under external stimuli, has the potential to realize both low power consumption and high-speed logic operations, and has the advantage to directly detect the out-of-plane normal force and pressure. The MPT benefits to developing various mechanical logic gates to endow more powerful ability in many fields such as intelligent human-machine interface etc.
{"title":"A type of piezotronic transistor based on channel width modulation to directly respond to normal force","authors":"Yi Zhen Qin, Qi Xu","doi":"10.1016/j.mtchem.2024.102261","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102261","url":null,"abstract":"Developing logic gates through mechanical modulation is important to realize the complex functionality in artificial intelligence, artificial neural network and human-machine interface etc. In this work, we put forward a kind of mechanical transistor based on piezotronic effect (MPT) with three-terminal structure (source and drain at two sides of semiconductor film, and the top gate electrode forming Schottky contact with semiconductor). Different from the past piezotronic devices, it works based on the channel width regulation by the piezoelectric charges at the interface between top electrode and semiconductor below under external stimuli, has the potential to realize both low power consumption and high-speed logic operations, and has the advantage to directly detect the out-of-plane normal force and pressure. The MPT benefits to developing various mechanical logic gates to endow more powerful ability in many fields such as intelligent human-machine interface etc.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"27 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204521","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}
In recent years, significant emphasis has been dedicated towards investigating aggregation-induced emission (AIE) phenomena, and a notable addition to this emerging field is aggregation-induced delayed fluorescence (AIDF). Here, we proposed two different strategies to produce AIDF-based luminescent materials at room temperature from glutathione-capped CuNCs (GSH-CuNCs) by (1) simply modifying the solvent environment and (2) introducing gadolinium (Gd) ions. The synthesized GSH-CuNCs displayed weak fluorescence (Fl) emission in aqueous solution with a short delayed lifetime of 3.2 μs and quantum yield (QY) of only 1.42 %. However, introducing GSH-CuNCs to an ethanol medium promptly led to enhanced delayed Fl emission with a significantly delayed lifetime of 21.8 μs and a high QY of 89.2 %. Moreover, introducing Gd ions to the aqueous GSH-CuNC solution also enhances delayed Fl emission with a delayed lifetime of 13.6 μs and a high QY of 79.5 %. Analysis of transmission electron microscopy and dynamic light scattering data showed that both the ethanol medium and Gd addition endows controlled aggregation of GSH-CuNCs, enabling successful harvesting of triplet states and ultimately leading to the AIDF phenomenon. Moreover, the AIDF harnessed from GSH-CuNCs by Gd was successfully employed to detect Cr ions in an aqueous solution with excellent selectivity.
{"title":"Ethanol and Gd3+ activated aggregation induced delayed fluorescence in copper nanoclusters for detection of Cr(VI)","authors":"Priyanka Sarkar, Neha Barnwal, Nilanjana Nandi, Kalyanasis Sahu","doi":"10.1016/j.mtchem.2024.102254","DOIUrl":"https://doi.org/10.1016/j.mtchem.2024.102254","url":null,"abstract":"In recent years, significant emphasis has been dedicated towards investigating aggregation-induced emission (AIE) phenomena, and a notable addition to this emerging field is aggregation-induced delayed fluorescence (AIDF). Here, we proposed two different strategies to produce AIDF-based luminescent materials at room temperature from glutathione-capped CuNCs (GSH-CuNCs) by (1) simply modifying the solvent environment and (2) introducing gadolinium (Gd) ions. The synthesized GSH-CuNCs displayed weak fluorescence (Fl) emission in aqueous solution with a short delayed lifetime of 3.2 μs and quantum yield (QY) of only 1.42 %. However, introducing GSH-CuNCs to an ethanol medium promptly led to enhanced delayed Fl emission with a significantly delayed lifetime of 21.8 μs and a high QY of 89.2 %. Moreover, introducing Gd ions to the aqueous GSH-CuNC solution also enhances delayed Fl emission with a delayed lifetime of 13.6 μs and a high QY of 79.5 %. Analysis of transmission electron microscopy and dynamic light scattering data showed that both the ethanol medium and Gd addition endows controlled aggregation of GSH-CuNCs, enabling successful harvesting of triplet states and ultimately leading to the AIDF phenomenon. Moreover, the AIDF harnessed from GSH-CuNCs by Gd was successfully employed to detect Cr ions in an aqueous solution with excellent selectivity.","PeriodicalId":18353,"journal":{"name":"Materials Today Chemistry","volume":"19 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204523","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}
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