Applied Materials Today最新文献_第2页

Piezoelectric nanomaterials for antibacterial strategies 用于抗菌策略的压电纳米材料

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-07 DOI: 10.1016/j.apmt.2024.102419

Xiebingqing Yang, Zhuoren Yang, Xuesong Wang, Yahui Guo, Yunfei Xie, Weirong Yao, Hideya Kawasaki

引用次数: 0

Janus-structured graphene scaffold for bottom-up lithium deposition: A progressive gradient approach 用于自下而上锂沉积的 Janus 结构石墨烯支架：渐进梯度法

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-07 DOI: 10.1016/j.apmt.2024.102421

Zhuzhu Du, Xin Chen, Ying Zhao, Yuhang Liu, Wei Ai

引用次数: 0

Tough and self-healing linear polydimethylsiloxane elastomer with multiple hydrogen bonds for high-performance piezoresistive pressure sensor 用于高性能压阻式压力传感器的具有多个氢键的坚韧自愈合线性聚二甲基硅氧烷弹性体

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-05 DOI: 10.1016/j.apmt.2024.102411

Hongtao Zhu, Han Lu, Junhuang Xu, Xuejun Lai, Hongqiang Li, Xingrong Zeng, Xiangrong Wu, Hong Liu

{"title":"Tough and self-healing linear polydimethylsiloxane elastomer with multiple hydrogen bonds for high-performance piezoresistive pressure sensor","authors":"Hongtao Zhu, Han Lu, Junhuang Xu, Xuejun Lai, Hongqiang Li, Xingrong Zeng, Xiangrong Wu, Hong Liu","doi":"10.1016/j.apmt.2024.102411","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102411","url":null,"abstract":"With the rapid development of flexible electronics, the functional elastomer with excellent mechanical properties as substrate for the preparation of high-performance piezoresistive pressure sensor has become one of the frontier research hotspots. Here, a tough and self-healing linear polydimethylsiloxane (PDMS) elastomer with multiple hydrogen-bonding interactions was synthesized, and then utilized as substrate to prepare piezoresistive pressure sensor with 2-ureido-4[1H]-pyrimidinone modified carbon nanotubes (UPy-CNTs) as conductive material and salt particles as sacrificial template to construct electrical pathways and ridge-like microstructure, respectively. The obtained elastomer showed high transmittance of above 90 % and excellent mechanical properties with tensile strength of 4.23 MPa, elongation at break of 984 % and toughness of 24.83 MJ m. With the exchange and reconstruction of multiple hydrogen bonds, the elastomer achieved high healing efficiency of 99.1 % after healing at 80 °C for 24 h. In addition, the elastomer-based piezoresistive pressure sensor exhibited high sensitivity of 2.04 kPa, wide sensing range of 0–450 kPa, short response/recovery time of 80/100 ms and excellent sensing repeatability (8000 loading-unloading cycles). The sensor was successfully applied for detecting various human motions, including finger and knee bending, exhalation, swallowing and heart-pulse, and realized remote transmission of pressure signals with a wireless monitoring circuit. Furthermore, the sensor could restore its sensing function even after being cut into two halves, showing great potential in the fields of wearable device, health monitoring and electronic skin.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"10 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178267","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

Crosslinked polytetrahydrofuran-based solid-state electrolytes with improved mechanical stability and electrochemical performance 机械稳定性和电化学性能更佳的交联聚四氢呋喃基固态电解质

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-05 DOI: 10.1016/j.apmt.2024.102417

Elmira Nurgaziyeva, Almagul Mentbayeva, Zhumabay Bakenov, Sandugash Kalybekkyzy

{"title":"Crosslinked polytetrahydrofuran-based solid-state electrolytes with improved mechanical stability and electrochemical performance","authors":"Elmira Nurgaziyeva, Almagul Mentbayeva, Zhumabay Bakenov, Sandugash Kalybekkyzy","doi":"10.1016/j.apmt.2024.102417","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102417","url":null,"abstract":"Solid-state lithium-ion batteries using polymer electrolytes are viewed as a promising approach for the next generation of high-energy-density and safe solid-state batteries. Still, solid polymer electrolytes (SPEs) face real-world application challenges due to poor room temperature performance, inadequate stability, interface contact issues, and low mechanical strength. Herein, we present a novel crosslinked polytetrahydrofuran-based solid-state electrolyte (aPTHF*) with the varying ratios of lithium bis(trifluoromethanesulfonyl)imide salt (LiTFSI), fabricated via UV-photocrosslinking process. To enhance mechanical and chemical stability, aPTHF-based SPE formulations (aPEP) were also produced by incorporating poly(ethylene glycol) diacrylate (PEGDA) and trimethylolpropane ethoxylate triacrylate (ETPTA) oligomers into the structure. The designed unique structure facilitated ion migration, and the highest value of ionic conductivity was 3.16 × 10 S·cm at 80 °C for aPEP4 formulation. Fabricated SPEs demonstrated high mechanical strength with a tensile strength of 13 MPa and a broad electrochemical stability window of around 5 V which allowed good interfacial stability with the LFP electrode, showing cycling stability at C/10 in an all-solid-state battery. Moreover, Li|aPEP4|LFP pouch cells were assembled, and the flexible cell and remained functional even after being bent and folded over 20 times. The flexible electrolyte demonstrated in this research offers a promising system for future studies on all-solid-state batteries.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"8 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178265","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

NIR-II light-encoded 4D-printed magnetic shape memory composite for real-time reprogrammable soft actuator 近红外-II 光编码 4D 印刷磁性形状记忆复合材料，用于实时再编程软致动器

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-03 DOI: 10.1016/j.apmt.2024.102413

Shushu Miao, Yue Xing, Xu Li, Bing Sun, Zheyuan Du, Hongshuo Cao, Pengfei Guo, Yincheng Chang, Yanhong Tian, Minghui Yao, Ke Chen, Dengbao Xiao, Xuejun Zhang, Biao Zhao, Kai Pan, Jiangman Sun, Xiubing Liang

{"title":"NIR-II light-encoded 4D-printed magnetic shape memory composite for real-time reprogrammable soft actuator","authors":"Shushu Miao, Yue Xing, Xu Li, Bing Sun, Zheyuan Du, Hongshuo Cao, Pengfei Guo, Yincheng Chang, Yanhong Tian, Minghui Yao, Ke Chen, Dengbao Xiao, Xuejun Zhang, Biao Zhao, Kai Pan, Jiangman Sun, Xiubing Liang","doi":"10.1016/j.apmt.2024.102413","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102413","url":null,"abstract":"For the intelligent 4D-printed actuators, the excellent performance, including quickly reversible spatial-shape transformation and locking, digital and precise shape manipulation in real-time, and remote actuation in special spaces or harsh environments, is significantly desirable but still challenging. Here, using a UV-curable system containing the shape memory polymer (SMP) and NdFeB particles, namely the magSMP composite, we fabricate a real-time reprogrammable soft actuator high-resolution Digital Light Processing (DLP)-based 4D printing. The printed structure is composed of an array of physical binary magSMP composite elements (m-bits), analogous to digital bits. Owing to the NdFeB's photothermal effect, each m-bit can be independently and reversibly switched between unlocking or locking states (allowing or prohibiting responsive shape-morphing) in response to the on/off state of NIR-II light. Through projecting NIR-II light patterns for encoding a set of binary instructions onto 4D-printed actuators, the real-time light-programmed deformations are induced precisely under an actuation magnetic field due to the NdFeB's huge coercivity. Thus, the synergistic magnetic and light field-manipulated multimodal deformations of actuators, including mimosa shape changing, grasping, and wire guiding, are achieved. This study shines lights on the fabrication of soft structures of arbitrary sizes and provides their future perspectives in soft robot design.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"11 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178270","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

Modified implant with dual functions of antioxidant and extracellular matrix reconstruction for regulating MSCs senescence 具有抗氧化和细胞外基质重建双重功能的改良植入物可调节间充质干细胞衰老

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-03 DOI: 10.1016/j.apmt.2024.102420

Yi Wu, Xuan Li, Shaopeng Liu, Ruichen Ma, Peng Liu, Kaiyong Cai

{"title":"Modified implant with dual functions of antioxidant and extracellular matrix reconstruction for regulating MSCs senescence","authors":"Yi Wu, Xuan Li, Shaopeng Liu, Ruichen Ma, Peng Liu, Kaiyong Cai","doi":"10.1016/j.apmt.2024.102420","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102420","url":null,"abstract":"Bone repair in elderly patients is significantly weaker compared to normal bone repair, and one of the main reasons for this is the senescence of bone marrow mesenchymal stem cells (MSCs), which play a key role in the bone repair process. Therefore, we considered the corresponding surface modification of orthopedic implants to cope with the practical problem of bone defects in elderly patients. In this thesis, we prepared TiO nanotubes loaded with metformin (Glucophage) on Ti substrates, followed by self-assembly layer by layer using chitosan-catechol and gelatin on the surface, to delay MSCs senescence by eliminating excessive reactive oxygen species (ROS) and reconstructing extracellular matrix (ECM), thereby achieving osteogenesis. The results showed a significant reduction in senescence-associated secretory phenotype (SASP) generation, an enhancement of PINK1/Parkin-mediated mitochondrial autophagy, and a decrease in intracellular and extracellular ROS levels in MSCs under the dual effects of antioxidants and ECM reconstruction, suggesting that the degree of senescence in MSCs was significantly reduced. Osteogenesis was also demonstrated by expression of osteogenesis-related genes and staining of animal sections. In conclusion, our material can indeed promote the proliferation and osteogenic differentiation of MSCs by delaying cellular senescence, which is expected to provide a novel approach for clinical solutions to tissue repair problems in elderly patients with bone defects.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"108 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178269","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

MOFs functionalization of 3D printed mullite complex architectures for CO2 capture 用于二氧化碳捕获的 MOFs 功能化三维打印莫来石复合结构

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-02 DOI: 10.1016/j.apmt.2024.102407

Arianna Bertero, Julien Schmitt, Helena Kaper, Bartolomeo Coppola, Paola Palmero, Jean-Marc Tulliani

引用次数: 0

On the origin of thermal dependence of 3D printed Inconel 718: Roles of atom clustering 三维打印 Inconel 718 热依赖性的起源：原子团聚的作用

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-02 DOI: 10.1016/j.apmt.2024.102414

Jalal Al-Lami, Felix Theska, Emilio Ahuactzin-Garcia, Sophie Primig, Catrin Davies, Minh-Son Pham

{"title":"On the origin of thermal dependence of 3D printed Inconel 718: Roles of atom clustering","authors":"Jalal Al-Lami, Felix Theska, Emilio Ahuactzin-Garcia, Sophie Primig, Catrin Davies, Minh-Son Pham","doi":"10.1016/j.apmt.2024.102414","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102414","url":null,"abstract":"Despite the high interest in fabricating Inconel 718 by laser powder bed fusion (L-PBF) and the alloy's wide applicability at high temperatures in aerospace and energy applications, there is limited information on its thermal dependence. In this work, we studied the thermal dependence of Inconel 718 fabricated by L-PBF over a temperature range of 25 to 650 °C, and strain rates of 10 and 10 s. Serrated flow stress indicative of dynamic strain ageing (DSA) was observed at 250 and 450 °C at both strain rates. While previous studies reported that DSA was associated with the interactions of C and Nb with dislocations, direct examinations of solute cluster evolution using atom probe tomography (APT) in this study show strong evidence of Nb and Ti clusters at 250 °C, suggesting that both Nb and Ti clusters are responsible for the stress serrations at this temperature. At 450 °C, APT examinations revealed only weak evidence of Nb clusters but strong presence of Ti clusters, indicating that Ti might be most likely responsible for the DSA response at 450 °C. In addition, the yield strength decreased with temperature until 450 °C due to thermally-assisted softening, but the strength was regained with further temperature increase to 650 °C. APT and transmission electron microscopy (TEM) examinations reveal that the strengthening at 650 °C was imparted by nanoscale solute clustering (short-range ordering) of Al, Ti and Nb atoms, which had not developed into mature γ' and γ\" precipitates. The insights revealed in this study provide a new perspective of the mechanisms underlying the thermal dependence of Inconel 718.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"13 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178271","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 charge extraction in BiVO4 photoanodes by ZrCl4 treatment of SnO2 hole-blocking layers 通过 ZrCl4 处理 SnO2 阻孔层提高 BiVO4 光阳极的电荷萃取能力

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-09-01 DOI: 10.1016/j.apmt.2024.102415

Valentina Gacha, Carles Ros, Xènia Garcia, Jordi Llorca, Jordi Martorell, Dimitrios Raptis

{"title":"Enhancing charge extraction in BiVO4 photoanodes by ZrCl4 treatment of SnO2 hole-blocking layers","authors":"Valentina Gacha, Carles Ros, Xènia Garcia, Jordi Llorca, Jordi Martorell, Dimitrios Raptis","doi":"10.1016/j.apmt.2024.102415","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102415","url":null,"abstract":"In the search for more efficient and sustainable photoelectrochemical devices, BiVO is nowadays one of the best-performing photoanode material, with favourable band structure for water oxidation. However, BiVO photoanodes face challenges such as poor charge transport and slow kinetics. To address these issues, SnO films are commonly used as hole blocking layers, reducing recombination rate and enhancing charge lifespan and overall productivity. Yet, this method encounters problems like high defect concentrations at the SnO/BiVO interface and pinholes in the SnO layer, which lead to charge recombination. In this study, we explore a ZrCl treatment to improve the effectiveness of SnO as a hole-blocking layer in BiVO photoanodes. Our findings, supported by detailed optoelectronic characterization and continuous and modulated electrochemical analysis, reveal that ZrCl treatment significantly enhances the hole-blocking properties of SnO. This treatment results in a 37 % increase in photocurrent density at 1.23 V and a 40 mV shift in the onset voltage, demonstrating a substantial improvement in overall photoanode efficiency.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"137 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178276","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

Additive manufacturing of Proton-Conducting Ceramics by robocasting with integrated laser postprocessing 通过集成激光后处理的机器人铸造技术快速制造质子传导陶瓷

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-08-31 DOI: 10.1016/j.apmt.2024.102398

Joanna Pośpiech, Małgorzata Nadolska, Mateusz Cieślik, Tomasz Sobczyk, Marek Chmielewski, Aleksandra Mielewczyk-Gryń, Ragnar Strandbakke, José Manuel Serra, Sebastian Lech Wachowski

引用次数: 0