Applied Materials Today最新文献_第10页

3D-printed polymer-derived ceramics with tunable cellular architectures 具有可调细胞结构的三维打印聚合物衍生陶瓷

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-18 DOI: 10.1016/j.apmt.2024.102327

H. Yazdani Sarvestani, T. Lacelle, A. Sohrabi-Kashani, A. Shashoua, V. Karamzadeh, H. Ravanbakhsh, A. Robitaille, H. Lavoie, C. Paquet, M.B. Jakubinek, B. Ashrafi

{"title":"3D-printed polymer-derived ceramics with tunable cellular architectures","authors":"H. Yazdani Sarvestani, T. Lacelle, A. Sohrabi-Kashani, A. Shashoua, V. Karamzadeh, H. Ravanbakhsh, A. Robitaille, H. Lavoie, C. Paquet, M.B. Jakubinek, B. Ashrafi","doi":"10.1016/j.apmt.2024.102327","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102327","url":null,"abstract":"Ceramic materials possess high mechanical strength and environmental stability, but their brittleness limits their suitability for structural applications. A solution lies in using polymer-derived ceramics (PDCs), which offer enhanced toughness and versatility in shaping unlike traditional ceramic processing methods. This study explores tunable ceramic cellular architectures based on triply periodic minimal surface (TPMS) designs, fabricated via stereolithography (SLA) using a silicon oxycarbide precursor formulated for vat photopolymerization. By combining the preceramic polymer with a photoinitiator, crosslinkers, and other additives, intricate shapes are 3D-printed and then pyrolyzed under nitrogen, resulting in PDCs with complex TPMS geometries. The toughness, strength, and stiffness of the 3D-printed structures are evaluated through quasi-static compression experiments. Comprehensive material and microstructural characterizations of the PDCs are performed pre- and post-pyrolysis, employing visual inspection, X-ray micro-tomography, thermogravimetric analysis, energy dispersive X-ray spectroscopy, density, and rheological measurements. Optimization of 3D printing and pyrolysis parameters yields ceramic structures with 2.2 MPa compressive strength and 330 MPa stiffness with a lattice density of 0.5 g cm. The ceramic material, including porosity, had a maximum density of 1.63 ± 0.01 g cm. This low-cost SLA 3D printing technique is ideal for creating thin features and customized structures of bio-inspired, architectured ceramics. Furthermore, the process exhibits excellent printability, being compatible with common and cost-effective SLA, DLP, and LCD 3D printers.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"12 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775820","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

Integrated wearable collaborative strain sensor with simultaneous self-healing and superhydrophobic abilities for stable sensing monitoring 同时具备自修复和超疏水能力的集成式可穿戴协作应变传感器，用于稳定的传感监测

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-18 DOI: 10.1016/j.apmt.2024.102339

Lu Guo, Yibo Liang, Junchi Ma, Haoyang Song, Yang Cai, Chenglong Li, Yan Shang, Cai Long, Changsheng Liu, Yongquan Qing

{"title":"Integrated wearable collaborative strain sensor with simultaneous self-healing and superhydrophobic abilities for stable sensing monitoring","authors":"Lu Guo, Yibo Liang, Junchi Ma, Haoyang Song, Yang Cai, Chenglong Li, Yan Shang, Cai Long, Changsheng Liu, Yongquan Qing","doi":"10.1016/j.apmt.2024.102339","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102339","url":null,"abstract":"Flexible wearable strain sensors possess extensive applicability in wearables, electronic skin, and environmental monitoring. However, these sensors face challenges in maintaining stable sensing performance when exposed to harsh environments, as mechanical damage and liquid corrosion can lead to localized degradation, micro-cracks, and even macroscopic cracks. Herein, we present an integrated wearable collaborative strain sensor (IWCSS), achieved by applying the superhydrophobic layer on conductive double-cross-linked hydrogel surface. This IWCSS, once severed, can simultaneously restore its sensing performance and superhydrophobicity after 16 h at 25 ℃, attributing to the synergistic effect of reversible bonds—amide, borate ester and metal coordination bond—that drive molecular self-healing. Additionally, with a sensing coefficient of 0.8 and a response time of 70 ms, the IWCSS's superhydrophobic layer serves as a shield against aqueous infiltration and corrosive liquids, ensuring stable sensing and accurate monitoring of human movements in harsh environments. Our design strategy paves the way for developing wearable sensor materials with enhanced reliability in demanding operating environments.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"53 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775822","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

Non-immune factors cause prolonged myofibroblast phenotype in implanted synthetic heart valve scaffolds 非免疫因素导致植入式合成心脏瓣膜支架的肌成纤维细胞表型延长

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-16 DOI: 10.1016/j.apmt.2024.102323

Yuriy Snyder, Fred Anthony Mann, John Middleton, Takashi Murashita, John Carney, Richard W. Bianco, Soumen Jana

{"title":"Non-immune factors cause prolonged myofibroblast phenotype in implanted synthetic heart valve scaffolds","authors":"Yuriy Snyder, Fred Anthony Mann, John Middleton, Takashi Murashita, John Carney, Richard W. Bianco, Soumen Jana","doi":"10.1016/j.apmt.2024.102323","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102323","url":null,"abstract":"The clinical application of heart valve scaffolds is hindered by complications associated with the activation of valvular interstitial cell-like (VIC-like) cells and their transdifferentiation into myofibroblasts. This study aimed to examine several molecular pathway(s) that may trigger the overactive myofibroblast phenotypes in the implanted scaffolds. So, we investigated the influence of three molecular pathways - macrophage-induced inflammation, the TGF-β1-SMAD2, and WNT/β-catenin – on VIC-like cells during tissue engineering of heart valve scaffolds. We implanted electrospun heart valve scaffolds in adult sheep for up to 6 months in the right ventricular outflow tract (RVOT) and analyzed biomolecular (gene and protein) expression associated with the above three pathways by the scaffold infiltrating cells. The results showed a gradual increase in gene and protein expression of markers related to the activation of VIC-like cells and the myofibroblast phenotypes over 6 months of scaffold implantation. Conversely, there was a gradual increase in macrophage activity for the first three months after scaffold implantation. However, a decrease in macrophage activity from three to six months of scaffold tissue engineering suggested that immunological signal factors were not the primary cause of myofibroblast phenotype. Similarly, the gene and protein expression of factors associated with the TGF-β1-SMAD2 pathway in the cells increased in the first three months but declined in the next three months. Contrastingly, the gene and protein expression of factors associated with the WNT/β-catenin pathway increased significantly over the six-month study. Thus, the WNT/β-catenin pathway could be the predominant mechanism in activating VIC-like cells and subsequent myofibroblast phenotype.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"33 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775823","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

Exploring the origin of exchange bias and spin glass behavior in 6H hexagonal perovskite structure: Structural and magnetic analysis 探索 6H 六方包晶结构中交换偏压和自旋玻璃行为的起源：结构与磁性分析

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-16 DOI: 10.1016/j.apmt.2024.102316

Koustav Pal, I. Das

引用次数: 0

Micromachining porous silicon thin films for thermal sensing applications 用于热感应应用的微加工多孔硅薄膜

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-16 DOI: 10.1016/j.apmt.2024.102320

Pritam Sharma, Sobhan Erfantalab, John Dell, Giacinta Parish, Adrian Keating

引用次数: 0

A rational synthesis strategy of multicolor carbon nanodots for efficient visual detection of NaNO2 高效视觉检测 NaNO2 的多色碳纳米点的合理合成策略

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-16 DOI: 10.1016/j.apmt.2024.102330

Xiao Gong, Mengyi Wu, Jiurong Li, Shiwei Zhang, Min Wu

{"title":"A rational synthesis strategy of multicolor carbon nanodots for efficient visual detection of NaNO2","authors":"Xiao Gong, Mengyi Wu, Jiurong Li, Shiwei Zhang, Min Wu","doi":"10.1016/j.apmt.2024.102330","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102330","url":null,"abstract":"Carbon nanodots (CDs) have seen unprecedented growth in recent years. Here, we report a facile synthesis strategy of tunable luminescent CDs via sulfur (S)-nitrogen (N) co-doping for visually detecting sodium nitrite (NaNO). The prepared multicolor CDs have outstanding stability and good emission properties, and the emitted fluorescence of the CDs can be redshifted from 520 nm to 555 nm to 625 nm by introducing S and N elemental doping, reaching a redshift of wavelength greater than 100 nm. The narrowing of the energy gap caused by the increase in graphitic N and C = O levels might be the reason behind the adjustable luminescence mechanism of the CDs. This also suggests an increase in sp conjugated domains, which shifts the emission wavelength towards the red color. Besides, yellow CDs (Y-CDs) and red CDs (R-CDs) synthesized by S and N co-doping are extremely sensitive and specific in detecting NaNO. Importantly, the detection of NaNO can be visualized by the color recognition software in the smart phone. We expect that this synthesis strategy will provide favorable technical support for the synthesis of emission redshift of high-performance CDs with special applications.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"19 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775821","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

Excellent energy storage capability in Sr0.6Ba0.4Nb2O6-based ceramics via incommensurate modulation and grain boundary reinforcement 通过不对称调制和晶界强化实现基于 Sr0.6Ba0.4Nb2O6 陶瓷的卓越储能能力

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-13 DOI: 10.1016/j.apmt.2024.102326

Peng Zheng, Xiangting Zheng, Jiaqi Wang, Linsheng Sheng, Liang Zheng, Qiaolan Fan, Wangfeng Bai, Yang Zhang

{"title":"Excellent energy storage capability in Sr0.6Ba0.4Nb2O6-based ceramics via incommensurate modulation and grain boundary reinforcement","authors":"Peng Zheng, Xiangting Zheng, Jiaqi Wang, Linsheng Sheng, Liang Zheng, Qiaolan Fan, Wangfeng Bai, Yang Zhang","doi":"10.1016/j.apmt.2024.102326","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102326","url":null,"abstract":"The energy storage performances for tungsten bronze ferroelectric ceramics have always been constrained by the weak relaxor behavior and low breakdown strength. To enhance the energy storage capacity of the tungsten bronze ferroelectric ceramics, a synergistic two-step optimization strategy is proposed based on the SrBaNbO ceramic in this work, that is, enhance the relaxor behavior to generate slim hysteresis loops through the introduction of BiKTiO, and then optimize the microstructure to improve the breakdown strength by adding the sintering aid CuO. Ultimately, a remarkable comprehensive performance is achieved, characterized by a recoverable energy storage density of approximately 6.31 J/cm³ and an efficiency of about 91.8 % under 600 kV/cm. Notably, a high power density (∼178 MW/cm³) and an ultrafast discharge speed (<65 ns) are simultaneously attained, indicating excellent capacitive performance. Moreover, it is revealed that the enhanced relaxor behavior is closely related to the incommensurate modulation structure in the ceramic, while the improved breakdown strength should be ascribed to the reinforced grain boundary, which collectively contribute to the superior energy storage performances.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"69 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775830","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 flexible green triboelectric nanogenerator with polyethylene oxide/mica tribo-positive composite material 采用聚氧化乙烯/云母三正复合材料的高性能柔性绿色三电纳米发电机

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-13 DOI: 10.1016/j.apmt.2024.102321

Aliesha D. Johnson, Mohammad M. Rastegardoost, Nima Barri, Tobin Filleter, Zia Saadatnia, Hani E. Naguib

{"title":"High performance flexible green triboelectric nanogenerator with polyethylene oxide/mica tribo-positive composite material","authors":"Aliesha D. Johnson, Mohammad M. Rastegardoost, Nima Barri, Tobin Filleter, Zia Saadatnia, Hani E. Naguib","doi":"10.1016/j.apmt.2024.102321","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102321","url":null,"abstract":"Innovating novel, green, biodegradable, and recyclable polymers are critical for the development of environmentally sustainable solutions, eliminating concerns of pollution and microplastic accumulation. Herin, this study presents remarkably enhanced tribo-positive polyethylene oxide (PEO) polarity, by incorporating for the first time, a clay inorganic filler, creating a novel biodegradable composite triboelectric material. The low-cost composite comprised a biodegradable polymeric PEO matrix, an abundant naturally sourced muscovite mica micro-platelet filler, and integrated simple material fabrication methods. A 4 cm PEO/Mica film was paired with polytetrafluoroethylene (PTFE), generating a peak-to-peak voltage, current density, and transferred charge density of respectfully, 296 V, 24.2 mA and 110.3 µC . Reducing the film thickness to 40 µm dramatically enhanced the electrical output, resulting in a peak-to-peak voltage and instantaneous power density of respectfully, 424 V and 12.1 W . The addition of mica greatly improved the dielectric permittivity, promoting the outstanding triboelectric performance. The composite material's long-term stability and flexibility demonstrated significant advantages for self-powering small electronic systems. Furthermore, PEOs facile water solubility allowed mica separation, recovery, recyclability, and integration within new PEO/Mica films, resulted in preserved triboelectric outputs. The PEO/Mica composite delivers exceptional sustainable, recyclable, and tribo-positive attributes, serving as an excellent energy harvesting solution.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"16 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775828","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

Lubricating adhesive hyaluronate patch promotes cartilage regeneration and functional restoration in osteoarthritis 润滑性粘合透明质酸盐贴片促进骨关节炎患者的软骨再生和功能恢复

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-13 DOI: 10.1016/j.apmt.2024.102318

Soojeong Choi, Eun Je Jeon, Yunsu Bae, Jihoon Jeon, Donyoung Kang, Hyungsuk Lee, Seung-Woo Cho

{"title":"Lubricating adhesive hyaluronate patch promotes cartilage regeneration and functional restoration in osteoarthritis","authors":"Soojeong Choi, Eun Je Jeon, Yunsu Bae, Jihoon Jeon, Donyoung Kang, Hyungsuk Lee, Seung-Woo Cho","doi":"10.1016/j.apmt.2024.102318","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102318","url":null,"abstract":"Osteoarthritis (OA) is a common chronic degenerative joint disease characterized by gradual deterioration and pain. Viscosupplementation, involving hyaluronic acid (HA) injection into the affected joint, is a minimally invasive option to reduce pain by improving joint lubrication and potentially avoiding the need for replacement surgery. However, the low adhesion and rapid degradation of HA often lead to inadequate therapeutic effects. In this study, we present lubricating adhesive HA-based hydrogel patches designed to effectively treat OA. The HA patches, modified with pyrogallol, have high elastic and compressive moduli, delaying degradation when exposed to external stimuli. Furthermore, they securely adhere to cartilage tissue surfaces and efficiently lubricate damaged cartilage, leading to a reduced friction and wear. In addition to these benefits, our HA patches exhibit scavenging effect of reactive oxygen species and sustainably release an encapsulated anti-inflammatory drug (dexamethasone: Dex). These features further enhance their therapeutic potential for OA treatment. In a mouse OA model, the hydrogel patches loaded with Dex promote healing of damaged cartilage and restore its motor function. Overall, our bioinspired HA hydrogel patches present a promising treatment option for managing the debilitating joint disease by offering enhanced adhesion, lubrication for cartilage protection, antioxidant effect, and sustained drug release.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"19 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775829","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

Passive daytime radiative cooling polymeric materials: Structure design, fabrication, and applications 被动式日间辐射冷却聚合材料：结构设计、制造和应用

IF 8.3 2区材料科学

Applied Materials Today Pub Date : 2024-07-13 DOI: 10.1016/j.apmt.2024.102331

Ling Liu, Jin Wang, Qingwen Li

{"title":"Passive daytime radiative cooling polymeric materials: Structure design, fabrication, and applications","authors":"Ling Liu, Jin Wang, Qingwen Li","doi":"10.1016/j.apmt.2024.102331","DOIUrl":"https://doi.org/10.1016/j.apmt.2024.102331","url":null,"abstract":"Radiative cooling (RC) technology achieves passive cooling without consuming additional energy by reflecting sunlight and dissipating heat through the atmospheric transparent window via infrared radiation into the cold outer space. It presents an excellent alternative to address the current challenges of energy shortage and environmental stress. While numerous materials and structures demonstrate robust RC performance, polymers, with their inherent and strong infrared radiation characteristics, exhibit significant potential and possibilities in RC due to their diverse structures with designable chemical bonds and groups, large-scale production capabilities, and ease of manufacturing into RC devices. This review aims to provide a comprehensive summary of recent advances in utilizing polymers for passive daytime radiative cooling. It will explore the relationship between polymer structure and RC performance, discuss design principles for achieving high RC efficiency, examine the production of polymeric materials for coolers, and systematically review and discuss the broad application scenarios of RC polymers. Finally, this review will highlight future perspectives for the development of RC polymers.","PeriodicalId":8066,"journal":{"name":"Applied Materials Today","volume":"20 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775827","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