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Fast microwave-assisted methacrylation of Pluronics for photoinduced 3D printing 用于光诱导 3D 打印的 Pluronics 快速微波辅助甲基丙烯酸化技术
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-08-06 DOI: 10.1557/s43579-024-00618-4
Mateus P. Bomediano, Murilo I. Santos, Marcos V. Lorevice, Giovana B. Romano, Laura C. E. da Silva, Airton G. S. Junior, Marcelo G. de Oliveira
{"title":"Fast microwave-assisted methacrylation of Pluronics for photoinduced 3D printing","authors":"Mateus P. Bomediano, Murilo I. Santos, Marcos V. Lorevice, Giovana B. Romano, Laura C. E. da Silva, Airton G. S. Junior, Marcelo G. de Oliveira","doi":"10.1557/s43579-024-00618-4","DOIUrl":"https://doi.org/10.1557/s43579-024-00618-4","url":null,"abstract":"<p>Methacrylation of Pluronics enables 3D printing of irreversible hydrogel constructs, thereby diversifying their potential applications. Current methods rely on organic solvents and time-consuming reactions. Herein, a rapid method for the microwave-assisted methacrylation of Pluronics by methacrylic anhydride (MA) in the absence of organic solvents is presented, which reduced the reaction time from 24 h to ca. 10 min. <sup>1</sup>H-NMR analysis showed that this method allows modulating the methacrylation degree (MD) of Pluronics from 45 to 97% by using different MA:Pluronic ratios. 3D-printed constructs with lower MD showed larger pores and lower compression modulus.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"11 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141940894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A modified vacuum induction melting technique with argon backfilling to produce pristine Ni–Ti–Si ternary shape memory alloys 改进的真空感应熔炼技术与氩气填充技术，用于生产原始的镍钛硅三元形状记忆合金
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-08-02 DOI: 10.1557/s43579-024-00620-w
S. Santosh, S. K. Yogeshwaran, P. Shobhan Kumar
{"title":"A modified vacuum induction melting technique with argon backfilling to produce pristine Ni–Ti–Si ternary shape memory alloys","authors":"S. Santosh, S. K. Yogeshwaran, P. Shobhan Kumar","doi":"10.1557/s43579-024-00620-w","DOIUrl":"https://doi.org/10.1557/s43579-024-00620-w","url":null,"abstract":"<p>This research investigates the effect of silicon (Si) addition on the phase transformation behaviour of the Ni–Ti alloy. The Ni–Ti–Si alloys were fabricated with varying proportions of Si through a modified vacuum induction melting technique with argon backfilling. Scanning electron microscopy, X-ray diffraction and differential scanning calorimetry were done to analyse the microstructure, elemental composition, and phase transformation temperatures, respectively, to validate the effectiveness of this modified melting technique. The results indicate an increase in the phase transformation temperature with an increase in the Si content in the alloy mixture and the alloys were prepared with a very minimal amount of detrimental impurities. This technique helps to produce high-temperature shape memory alloys with utmost purity which helps in retaining their functional properties. The transformation temperatures observed from differential scanning calorimetry revealed that the <i>A</i><sub>f</sub> temperature varies from 342.68 K to 379.95 K for 3 to 12% variation in Si content. This group of shape memory alloys have potential use as actuators in aircrafts and various other applications.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"79 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Validation of a multilayer perceptron for rapid, direct solution of the electrical impedance tomography inverse problem 验证用于快速直接解决电阻抗断层成像逆问题的多层感知器
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-08-01 DOI: 10.1557/s43579-024-00621-9
John Wertz, Chenoa Flournoy, Laura Homa, Tyler Tallman
{"title":"Validation of a multilayer perceptron for rapid, direct solution of the electrical impedance tomography inverse problem","authors":"John Wertz, Chenoa Flournoy, Laura Homa, Tyler Tallman","doi":"10.1557/s43579-024-00621-9","DOIUrl":"https://doi.org/10.1557/s43579-024-00621-9","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Electrical impedance tomography is a method of mapping the conductivity distribution of a domain. For decades it has been considered a potential in situ nondestructive evaluation technique for characterization of conductivity changes in aerospace composites. Yet, several challenges must be addressed before this technique can be transitioned from the laboratory to meaningful practice; for example, the expense of the inverse problem that must be solved to estimate conductivity. An alternative is to characterize damage from the measured voltage-current relationship using deep learning. In this work, we develop and test a deep learning algorithm to characterize time-independent damage events in complex geometry.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"216 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Materials-driven strategies in bacterial engineering 细菌工程中的材料驱动战略
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-31 DOI: 10.1557/s43579-024-00623-7
Giuseppe Maria Paternò
{"title":"Materials-driven strategies in bacterial engineering","authors":"Giuseppe Maria Paternò","doi":"10.1557/s43579-024-00623-7","DOIUrl":"https://doi.org/10.1557/s43579-024-00623-7","url":null,"abstract":"<p>This perspective article focuses on the innovative field of materials-based bacterial engineering, highlighting interdisciplinary research that employs material science to study, augment, and exploit the attributes of living bacteria. By utilizing exogenous abiotic material interfaces, researchers can engineer bacteria to perform new functions, such as enhanced bioelectric capabilities and improved photosynthetic efficiency. Additionally, materials can modulate bacterial communities and transform bacteria into biohybrid microrobots, offering promising solutions for sustainable energy production, environmental remediation, and medical applications. Finally, the perspective discusses a general paradigm for engineering bacteria through the materials-driven modulation of their transmembrane potential. This parameter regulates their ion channel activity and ultimately their bioenergetics, suggesting that controlling it could allow scientists to hack the bioelectric language bacteria use for communication, task execution, and environmental response.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"11 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Enabling 3D printing of carbons by polyethylene precursors 利用聚乙烯前体实现碳的 3D 打印
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-29 DOI: 10.1557/s43579-024-00619-3
Paul Smith, Ethan Bounds, Kaleb Jones, Anthony Griffin, Zoe Gunter, Zhe Qiang
{"title":"Enabling 3D printing of carbons by polyethylene precursors","authors":"Paul Smith, Ethan Bounds, Kaleb Jones, Anthony Griffin, Zoe Gunter, Zhe Qiang","doi":"10.1557/s43579-024-00619-3","DOIUrl":"https://doi.org/10.1557/s43579-024-00619-3","url":null,"abstract":"<p>Development of low-cost and accessible techniques for creating intricate carbon structures is an important research area for advancing various applications. In this work, fused filament fabrication (FFF) of polyethylene (PE) is used to generate 3D-printed structures which are converted to carbon through sulfonation-induced crosslinking and subsequent pyrolysis. Carbons from PE precursors display more continuous morphologies than their polypropylene (PP) counterparts while achieving enhanced reaction kinetics at lower temperatures. This phenomenon enables robust mechanical properties under optimal carbonization conditions. This work provides an essential expansion of precursor selection and understanding of carbonization effects for 3D-printed carbon materials.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Materials data science using CRADLE: A distributed, data-centric approach 使用 CRADLE 的材料数据科学：以数据为中心的分布式方法
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-29 DOI: 10.1557/s43579-024-00616-6
Thomas G. Ciardi, Arafath Nihar, Rounak Chawla, Olatunde Akanbi, Pawan K. Tripathi, Yinghui Wu, Vipin Chaudhary, Roger H. French
{"title":"Materials data science using CRADLE: A distributed, data-centric approach","authors":"Thomas G. Ciardi, Arafath Nihar, Rounak Chawla, Olatunde Akanbi, Pawan K. Tripathi, Yinghui Wu, Vipin Chaudhary, Roger H. French","doi":"10.1557/s43579-024-00616-6","DOIUrl":"https://doi.org/10.1557/s43579-024-00616-6","url":null,"abstract":"<p>There is a paradigm shift towards data-centric AI, where model efficacy relies on quality, unified data. The common research analytics and data lifecycle environment (CRADLE™) is an infrastructure and framework that supports a data-centric paradigm and materials data science at scale through heterogeneous data management, elastic scaling, and accessible interfaces. We demonstrate CRADLE’s capabilities through five materials science studies: phase identification in X-ray diffraction, defect segmentation in X-ray computed tomography, polymer crystallization analysis in atomic force microscopy, feature extraction from additive manufacturing, and geospatial data fusion. CRADLE catalyzes scalable, reproducible insights to transform how data is captured, stored, and analyzed.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"150 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The big bang of halide perovskites: The starting point of crystallization 卤化物包晶的大爆炸：结晶的起点
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-25 DOI: 10.1557/s43579-024-00611-x
Ana Palacios Saura, Joachim Breternitz, Armin Hoell, Susan Schorr
{"title":"The big bang of halide perovskites: The starting point of crystallization","authors":"Ana Palacios Saura, Joachim Breternitz, Armin Hoell, Susan Schorr","doi":"10.1557/s43579-024-00611-x","DOIUrl":"https://doi.org/10.1557/s43579-024-00611-x","url":null,"abstract":"<p>Hybrid halide perovskites (HHPs) are very promising absorber materials for solar cells due to their high power conversion efficiency and the low-cost solution-based processing methods. We applied small angle X-ray scattering to MAPbI<sub>3</sub>, FAPbI<sub>3</sub> and MAPbBr<sub>3</sub> precursor solutions in different solvents (GBL, DMF, and mixtures) to gain a deeper understanding of the building blocks during the early stage of HHP formation. We present a core–shell model where the core is formed by [PbX<sub>6</sub>] octahedra surrounded by a shell of solvent molecules, which explains the arrangement of the precursors in solution and how the solvent and the halide influence such arrangement.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"14 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141783232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Liquid monomer phase exfoliation of non-van der Waals hematite and processing of poly(methyl methacrylate) hematene composite substrates 非范德华赤铁矿的液态单体相剥离以及聚（甲基丙烯酸甲酯）赤烯复合基材的加工
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-22 DOI: 10.1557/s43579-024-00613-9
Urice Tohgha, Kyle Carothers, Douglas M. Krein, Michael C. Brennan, Gelu Costin, Chandra Sekhar Tiwary, Tod A. Grusenmeyer, Michael E. McConney, Peter R. Stevenson
{"title":"Liquid monomer phase exfoliation of non-van der Waals hematite and processing of poly(methyl methacrylate) hematene composite substrates","authors":"Urice Tohgha, Kyle Carothers, Douglas M. Krein, Michael C. Brennan, Gelu Costin, Chandra Sekhar Tiwary, Tod A. Grusenmeyer, Michael E. McConney, Peter R. Stevenson","doi":"10.1557/s43579-024-00613-9","DOIUrl":"https://doi.org/10.1557/s43579-024-00613-9","url":null,"abstract":"<p>Liquid phase exfoliation of non-van der Waals materials has generated renewed interest in fundamental optical and electronic materials discovery and processing. However, such approaches can limit access to novel two-dimensional materials due to the chemistry of exfoliation and processing conditions employed (e.g., processing temperature, mechanical energy input, volatile organic compounds, and sensitive redox chemistries). Here, we demonstrate the exfoliation of bulk hematite (α-Fe<sub>2</sub>O<sub>3</sub>) powder using a mild bath sonication methodology in liquid monomer media to form stable colloidal dispersions with quasi-two-dimensional hematene nanoflakes. These colloidal dispersions were further processed to form hematene poly(methyl methacrylate) matrix composite substrates.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"355 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141783233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Advanced catalytic materials: Nano and bulk 先进的催化材料：纳米和块状
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-22 DOI: 10.1557/s43579-024-00615-7
Manuel Antonio Ramos Murillo, José Manuel Domínguez Esquivel, Diego Daniel González Araiza, Francisco Robles-Hernández
{"title":"Advanced catalytic materials: Nano and bulk","authors":"Manuel Antonio Ramos Murillo, José Manuel Domínguez Esquivel, Diego Daniel González Araiza, Francisco Robles-Hernández","doi":"10.1557/s43579-024-00615-7","DOIUrl":"https://doi.org/10.1557/s43579-024-00615-7","url":null,"abstract":"","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"40 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141783235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Nanoclay and nano-hydroxyapatite chitosan-based scaffold for bone regeneration: Morphological, spectral, structural, thermal, in vitro, and in vivo studies 用于骨再生的基于壳聚糖的纳米粘土和纳米羟基磷灰石支架：形态、光谱、结构、热、体外和体内研究
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-07-17 DOI: 10.1557/s43579-024-00607-7
Ghada Ali, Sara A. M. El-Sayed, Ola M. El-Borady, Hatem S. A. Elgohary, Maram E. Khallaf, Maged El-Kemary
{"title":"Nanoclay and nano-hydroxyapatite chitosan-based scaffold for bone regeneration: Morphological, spectral, structural, thermal, in vitro, and in vivo studies","authors":"Ghada Ali, Sara A. M. El-Sayed, Ola M. El-Borady, Hatem S. A. Elgohary, Maram E. Khallaf, Maged El-Kemary","doi":"10.1557/s43579-024-00607-7","DOIUrl":"https://doi.org/10.1557/s43579-024-00607-7","url":null,"abstract":"<p>The present work evaluates chitosan/sodium alginate blended with two nanomaterials of hydroxyapatite (HA) and commercial nanoclay-Cloisite20A for improving bone regeneration. The free nano-HA, nanoclay, and their scaffolds were characterized via TEM, SEM, EDX, FTIR, XRD, and TGA analyses. <i>In vitro</i> bioactivity, degradation, swelling, and cytotoxicity were investigated. For the <i>in vivo</i> studies, two groups of rats were used (<i>n</i> = five) in the study period (37 days). The scaffolds were implanted in the rat’s back. TEM analysis showed the nanorods of HA have a particle length of around 107 nm and a width around 17 nm, which is crystalline in nature, as XRD demonstrated. However, the SEM images showed the formation of honeycomb-like scaffolds. The <i>in vitro</i> bioactivity results through the changes of PBS ions and SEM/EDX analysis after immersion in PBS detected the formation of a calcium phosphate layer which is important for bone regeneration. The cell viability results proved IC50 &gt; 670 µg/mL and IC50: 116 µg/mL for HA and nanoclay, respectively<i>.</i> Furthermore, the histological analysis revealed the highest calcification after 1 month for the nano-HA-containing scaffold supporting them as promising substitute biomaterials for treating bone loss.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"11 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141745173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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