Macromolecular Materials and Engineering最新文献_第9页

In-Depth Analysis of the Complex Interactions Induced by Nanolayered Additives in PHBV Nanocomposites 深入分析 PHBV 纳米复合材料中纳米层添加剂引发的复杂相互作用

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-22 DOI: 10.1002/mame.202400016

Pablo-Manuel Martínez-Rubio, María-Dolores Avilés, Ramón Pamies, Sergio-José Benítez-Benítez, Alejandro Arribas, Francisco-José Carrión-Vilches, María-Dolores Bermúdez

{"title":"In-Depth Analysis of the Complex Interactions Induced by Nanolayered Additives in PHBV Nanocomposites","authors":"Pablo-Manuel Martínez-Rubio, María-Dolores Avilés, Ramón Pamies, Sergio-José Benítez-Benítez, Alejandro Arribas, Francisco-José Carrión-Vilches, María-Dolores Bermúdez","doi":"10.1002/mame.202400016","DOIUrl":"10.1002/mame.202400016","url":null,"abstract":"New nanocomposites based on biopolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) are processed via extrusion, using low content of calcined hydrotalcite (CHT) and cloisite 20A (C20A) as additives (3 wt%). The aim of this work is to characterize the thermal and viscoelastic response of the structures induced by the presence of the additives. Field-emission scanning electron microscopy and laser profilometry are utilized to analyze the effect of the additives on the surface finish of extrusion filaments, detecting a smoother surface induced by additives. A lower degradation temperature is observed via thermogravimetry for composite containing CHT (PHBV+3%CHT), while such a phenomenon is not present in composite with C20A (PHBV+3%C20A). An increase in crystallinity due to the nucleating effect of additives is measured via differential scanning calorimetry. The intercalation of the biopolymer in the layered structure of the additives is observed via X-ray diffraction, reflecting the effective interaction in the composite matrix. The viscoelastic behavior of the samples is evaluated by means of rheology and dynamic-mechanical analysis, showing a non-Newtonian behavior and an enhancement of the vitreous state response. All results converge to the conclusion that the incorporation of the additives induces the formation of long-term structures that present variable sensitivity to temperature and frequency.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 7","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140677240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anisotropic Lattice Thermal Conductivity in Highly Ordered PEDOT Fibers 高有序 PEDOT 光纤中的各向异性晶格导热率

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-21 DOI: 10.1002/mame.202400092

Paolo Sebastiano Floris, Najmeh Zahabi, Igor Zozoulenko, Riccardo Rurali

{"title":"Anisotropic Lattice Thermal Conductivity in Highly Ordered PEDOT Fibers","authors":"Paolo Sebastiano Floris, Najmeh Zahabi, Igor Zozoulenko, Riccardo Rurali","doi":"10.1002/mame.202400092","DOIUrl":"10.1002/mame.202400092","url":null,"abstract":"When it comes to sustainable and efficient energy solutions, organic semiconductors can play an important role in thermoelectric applications, since they are non-toxic, cheap, made of abundant chemical species, and show intrinsically low thermal conductivities. Their electrical conductivity can be optimized via doping. Yet, thermal conduction should be as low as possible and, to this end, the atomic scale mechanisms behind heat transport –e.g. the correlation between morphology and thermal conductivity or the role of doping– should be understood in detail. Fully atomistic molecular dynamics calculations of the lattice thermal conductivity of doped poly(3,4-ethylenedioxythiophene) (PEDOT) highly ordered, quasi-crystalline nanofibers are presented here. It is found that the conductivity along the backbone direction is not necessarily the highest, but it depends on the length of the PEDOT chains, thus the degree of anisotropy depends on the the aspect ratio of the nanofiber. Indeed, transport along the lamellar direction can be of the same order or higher than that of the backbone if their lengths are comparable. These results challenge the usual expectation that thermal conduction along the backbone largely exceeds those along the lamellar and π − π direction and have the important consequence that the anisotropy could be leveraged in thermal management applications.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 10","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140637197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mycelium Agrowaste-Bound Biocomposites as Thermal and Acoustic Insulation Materials in Building Construction 菌丝体农产废弃物结合生物复合材料作为建筑施工中的隔热隔音材料

IF 3.9 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-19 DOI: 10.1002/mame.202300449

Kumba Bintunia Bonga, Laura Bertolacci, Marco Contardi, Uttam Chandra Paul, Muhammad Shajih Zafar, Giorgio Mancini, Lara Marini, Luca Ceseracciu, Despina Fragouli, Athanassia Athanassiou

{"title":"Mycelium Agrowaste-Bound Biocomposites as Thermal and Acoustic Insulation Materials in Building Construction","authors":"Kumba Bintunia Bonga, Laura Bertolacci, Marco Contardi, Uttam Chandra Paul, Muhammad Shajih Zafar, Giorgio Mancini, Lara Marini, Luca Ceseracciu, Despina Fragouli, Athanassia Athanassiou","doi":"10.1002/mame.202300449","DOIUrl":"10.1002/mame.202300449","url":null,"abstract":"The predominant use of synthetic materials, such as fiberglass and polymeric foams, for thermal and acoustic insulation in the construction sector contributes to the recalcitrant waste accumulation in the environment and is not economically sustainable in the long term. This is because they are developed with linear economy standards, they are neither reusable nor recyclable, and, at their end of lifecycle, they are not compostable, with a great amount of them finishing in landfills. This work is focused on the development of natural, self-growing mycelium-biocomposites as sustainable alternatives to these conventional synthetic materials. Specifically, fungal mycelium derived from the nonpathogenic fungal strain Pleurotus ostreatus is fed by coffee silverskin flakes, a lignocellulosic agrowaste from roasted coffee seeds, forming 3D biocomposites. The physicochemical properties of the obtained composite are thoroughly investigated, with a final focus on their thermal and acoustic insulation properties. As proved, the natural agrowaste-mycelium composites possess high porosity and thus low density, good thermal properties, and satisfactory sound absorption capability. Such properties combined with the minimal energetic requirements for their growth and their fully compostable end-of-life nature make them valuable alternatives for thermal and acoustic insulation in building construction, among other applications, promoting environmental and economic sustainability.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 6","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202300449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140627296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Injectable Nanocomposite IPN Hydrogel Based on Gelatin Methacrylate/Alginate/COF for Tissue Engineering Applications 基于甲基丙烯酸明胶/海藻酸盐/COF 的可注射纳米复合 IPN 水凝胶在组织工程中的应用

IF 3.9 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-18 DOI: 10.1002/mame.202300417

Samin Saleki, Saied Nouri Khorasani, Shahla Khalili, Mahshid Hafezi, Mahsa Najarzadegan, Mohammad Reza Molaviyan, Mohammad Dinari, Ali Kakapour

{"title":"An Injectable Nanocomposite IPN Hydrogel Based on Gelatin Methacrylate/Alginate/COF for Tissue Engineering Applications","authors":"Samin Saleki, Saied Nouri Khorasani, Shahla Khalili, Mahshid Hafezi, Mahsa Najarzadegan, Mohammad Reza Molaviyan, Mohammad Dinari, Ali Kakapour","doi":"10.1002/mame.202300417","DOIUrl":"10.1002/mame.202300417","url":null,"abstract":"The primary request nowadays is for innovative and superior scaffold designs that mimic the characteristics of native tissue in cartilage tissue engineering. GelMA/Alginate (G/A) interpenetrating polymer network (IPN) has become a popular hydrogel material for tissue engineering because of its superior mechanical and biological properties. Here, to balance the properties, a hydrogel composed of G/A and covalent organic frameworks (COF) nanoparticles is specially designed. In this study, a hydrogel of GelMA/Alginate/COF (G/A/C) with improved properties such as pore size, swelling, mechanical strength, shear-thinning behavior, and biocompatibility is produced. Furthermore, the G/A/C hydrogel facilitate the printing of complex three dimensional (3D) scaffolds. The test result demonstrates that the addition of COF up to 1% (w/w) enhances the porosity and decreases pore size (0.2 times), improves the compression strength (six times), and decreases the degradation ratio (0.05 times) and the swelling (0.3 times) compared to the G/A hydrogel sample. Besides, the cell viability test confirms the cell growth during the incubation and great biological behavior (more than 98%). The suitable performance of the G/A hydrogel containing 1% COF and its shape fidelity during the injection by 3D printer is confirmed. Nanocomposite IPN hydrogel based on G/A/C could be useful in tissue engineering applications.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 6","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202300417","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140627298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Curcumin-Encapsulated Poly(lactic-co-glycolic acid) Nanoparticles: A Comparison of Drug Release Kinetics from Particles Prepared via Electrospray and Nanoprecipitation 姜黄素包囊聚（乳酸-共-乙醇酸）纳米颗粒：通过电喷雾和纳米沉淀制备的颗粒的药物释放动力学比较

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-15 DOI: 10.1002/mame.202400040

Zahra Roshan, Vahid Haddadi-Asl, Hanie Ahmadi, Majid Moussaei

{"title":"Curcumin-Encapsulated Poly(lactic-co-glycolic acid) Nanoparticles: A Comparison of Drug Release Kinetics from Particles Prepared via Electrospray and Nanoprecipitation","authors":"Zahra Roshan, Vahid Haddadi-Asl, Hanie Ahmadi, Majid Moussaei","doi":"10.1002/mame.202400040","DOIUrl":"10.1002/mame.202400040","url":null,"abstract":"Controlled drug release (CDR) is a significant field of research in medical sciences due to its numerous clinical advantages over traditional methods. Encapsulation of a drug in a polymeric matrix is common technique to achieve CDR. In this study, drug-polymer particles are prepared using poly(lactic-co-glycolic acid) (PLGA) as the polymer and curcumin (CUR) as model drug. Two different methods, electrospray and nanoprecipitation, are used to prepare the particles, and optimal samples in each process are selected based on size and polydispersity index (PDI). Samples are characterized using various tests, and entrapment efficiency (EE%) and drug loading (DL%) are calculated using UV spectroscopy. The results showed that nanoprecipitated and electrosprayed PLGA particles successfully encapsulated CUR, with higher encapsulation efficiency (93.2%) and loading capacity (7.2%) for electrosprayed particles. The in vitro drug release showed that electrospray particles have a slower release rate due to higher encapsulation efficiency. The electrospray method turned out to be more viable for synthesizing these polymer-drug particles due to smaller particle size, lower PDI, higher entrapment efficiency, and drug loading percentage. Finally, the antibacterial behavior of the particles proved that prepared particles provide excellent antibacterial efficacy (99.9%) and can be used as drug delivery systems.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 7","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140596716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual Clay Nanobrick Wall Thin Films with High Oxygen Barrier at High Humidity 在高湿度条件下具有高阻氧性能的双粘土纳米砖壁薄膜

IF 3.9 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-15 DOI: 10.1002/mame.202470007

Ethan T. Iverson, Hsu-Cheng Chiang, Sarah G. Fisher, Hudson Legendre, Kendra Schmieg, Edward Chang, Jaime C. Grunlan

引用次数: 0

Masthead: Macromol. Mater. Eng. 4/2024 刊头：Macromol.Mater.Eng.4/2024

IF 3.9 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-15 DOI: 10.1002/mame.202470008

引用次数: 0

Biomedical Efficacy of Garlic-Extract-Loaded Core-Sheath Plasters for Natural Antimicrobial Wound Care 用于天然抗菌伤口护理的大蒜提取物包芯鞘膏的生物医学功效

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-15 DOI: 10.1002/mame.202400014

Hamta Majd, Merve Gultekinoglu, Cem Bayram, Beren Karaosmanoğlu, Ekim Z. Taşkıran, Didem Kart, Özgür Doğuş Erol, Anthony Harker, Mohan Edirisinghe

{"title":"Biomedical Efficacy of Garlic-Extract-Loaded Core-Sheath Plasters for Natural Antimicrobial Wound Care","authors":"Hamta Majd, Merve Gultekinoglu, Cem Bayram, Beren Karaosmanoğlu, Ekim Z. Taşkıran, Didem Kart, Özgür Doğuş Erol, Anthony Harker, Mohan Edirisinghe","doi":"10.1002/mame.202400014","DOIUrl":"10.1002/mame.202400014","url":null,"abstract":"This work explores the application of Allium sativum (Garlic) extract, in the creation of novel polymeric core-sheath fibers for wound therapy applications. The core-sheath pressurized gyration (CS PG) technology is utilized to mass-produce fibers with a polycaprolactone (PCL) core and a polyethylene oxide (PEO) sheath, loaded with garlic extract. The produced fibers maintain structural integrity, long-term stability and provide a cell-friendly surface with rapid antibacterial activity. The physical properties, morphology, therapeutic delivery, cytotoxicity, thermal and chemical stability of PCL, PEO, PEO/Garlic, Core-Sheath (CS) PEO/PCL and PEO/Garlic/PCL fibers are analyzed. Findings show that the addition of garlic extract greatly increases the fibers’ thermal durability, while decreasing their diameter, thus improving cell adhesion and proliferation. In-vitro release tests reveal a rapid release of garlic extract, which has significant antibacterial action against both Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) bacteria species. Cell viability experiments validate the fiber samples' biocompatibility and nontoxicity, making them appropriate for integrative medicine applications. These core-sheath structures emphasize the potential of combining natural therapeutic agents with advanced material technologies to develop cost-effective, sustainable and highly effective wound dressings, offering a promising solution to the growing concerns associated with conventional synthetic antibacterial agents.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140596699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thiol-Ene Photo Crosslinked PUA-PUMA-Based Flexible Gel Polymer Electrolyte for Lithium-Ion Batteries 用于锂离子电池的硫醇-烯光交联 PUA-PUMA 基柔性凝胶聚合物电解质

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-13 DOI: 10.1002/mame.202400051

Fatmanur Uyumaz, Elmira Nurgaziyeva, Sandugash Kalybekkyzy, Memet Vezir Kahraman

引用次数: 0

PVDF-Based Electrospun Nanofibers for Oil/Water Separation: A Review 用于油水分离的 PVDF 基电纺纳米纤维：综述

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-04-09 DOI: 10.1002/mame.202300390

Kgabo P. Matabola, Teboho C. Mokhena, Mokae F. Bambo, Thabang H. Mokhothu, Joe S. Modise, Mokgaotsa J. Mochane

引用次数: 0