Macromolecular Materials and Engineering最新文献_第2页

Viscoelastic Properties of Electrospray-Deposited Polymer Shells via Quartz Crystal Microbalance With Dissipation (QCM-D)

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-30 DOI: 10.1002/mame.202400224

Robert A. Green-Warren, Noah M. McAllister, Parameshwaran Pasupathy, Assimina A. Pelegri, Jonathan P. Singer, N. Sanjeeva Murthy

{"title":"Viscoelastic Properties of Electrospray-Deposited Polymer Shells via Quartz Crystal Microbalance With Dissipation (QCM-D)","authors":"Robert A. Green-Warren, Noah M. McAllister, Parameshwaran Pasupathy, Assimina A. Pelegri, Jonathan P. Singer, N. Sanjeeva Murthy","doi":"10.1002/mame.202400224","DOIUrl":"https://doi.org/10.1002/mame.202400224","url":null,"abstract":"Multilayer polymer films are extensively used in multiphase separation. Electrospray deposition (ESD) is an important technique for fabricating such films with tunable morphology. Viscoelastic properties of polystyrene (PS) nanoshell coatings produced by ESD on gold and spin-coated PS surfaces are evaluated using Quartz Crystal Microbalance with Dissipation (QCM-D). The thickness of PS films on gold increases with flow rate from ∼200 nm at 0.5 to ∼400 nm at 1.5 mL h−1, accompanied by an order-of-magnitude increase in dissipation due to larger particle sizes from shorter droplet flight times. This effect is absent on spin–coated PS films, suggesting the onset of the self-limiting effect of charges. Although the shear moduli for ESD films calculated from Voigt models is only 0.08%–0.20% of the bulk PS modulus, the stiffness ratio of spray-coated PS to a single shell is (5.00–13.3) × 103 m−1, due to shell–shell and shell–substrate interactions. These are novel results related to the interparticle friction obtained using QCM-D for the first time. This work demonstrates that mechanical properties of particulate viscoelastic films with potential applications in high surface area sensors, such as size-selective membranes for protein or electrolyte adsorption, can be evalauted by QCM-D with nanograms of material.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851520","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

Textile Muscle Fibers Made by and for Continuous Production Using Doped Conducting Polymers

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-28 DOI: 10.1002/mame.202400217

Claude Huniade, Jose G. Martinez, Shayan Mehraeen, Edwin W. H. Jager, Tariq Bashir, Nils-Krister Persson

{"title":"Textile Muscle Fibers Made by and for Continuous Production Using Doped Conducting Polymers","authors":"Claude Huniade, Jose G. Martinez, Shayan Mehraeen, Edwin W. H. Jager, Tariq Bashir, Nils-Krister Persson","doi":"10.1002/mame.202400217","DOIUrl":"https://doi.org/10.1002/mame.202400217","url":null,"abstract":"Like skeletal muscles having a fibrous structure, conducting polymers can actuate upon electrical stimulation and can be shaped into fibers. Through textile assembly strategies of such fibers, complex actuating architectures are possible. However, state-of-the-art strategies using short pieces of yarn, which compel manual integration, are not fully taking advantage of textiles. To manufacture actuating textiles that best exploit textile properties like softness and pliability, and to enable production upscaling, a production of continuous, actuating fibers is presented here. These fibers are produced from commercial polyamide 6/6 filaments by first continuously dip-coating in a modified commercial poly(3,4−ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) dispersion before the electropolymerization of polypyrrole (PPy), where the fibers are withdrawn continuously through an electrolyte solution containing the pyrrole monomer. By employing a cyclic dip-coating with individual viscosity, drying temperature, and withdrawal speed for each layer, and by adjusting the tension, speed, and applied potential of the electropolymerization, their isotonic strain is enhanced threefold. Their specific tension, at 400 µN tex−1, reaches slightly higher than human skeletal muscle fibers. Furthermore, these continuous actuating fibers produced on the meter are processable in an industrial knitting machine. This study anchors the development of textile muscle fibers for future textile muscles.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862382","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

Correction to “PEGylation Effects on the Interaction of Sphingomyelin Nanoemulsions with Serum Albumin: A Thermodynamic Investigation” 对 "PEG 化对球蛋白纳米乳液与血清白蛋白相互作用的影响：热力学研究"

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-25 DOI: 10.1002/mame.202400334

D. Gheorghe, S. Díez-Villares, R. Sandu, A. Neacsu, D.-A. Neacsu, A. Serban, A. Botea-Petcu, V. T. Popa, J. Garcia-Fernandez, R. L. López, M. de la Fuente Freire, F. Teodorescu, S. Tanasescu

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 : 2024-09-13 DOI: 10.1002/mame.202470017

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

引用次数: 0

Masthead: Macromol. Mater. Eng. 9/2024 刊头：Macromol.Mater.Eng.9/2024

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-13 DOI: 10.1002/mame.202470018

引用次数: 0

Dynamic Behavior of Ribbed Viscoelastic CNT-PDMS Thin-Films for Multifunctional Applications 用于多功能应用的带肋粘弹性 CNT-PDMS 薄膜的动态行为

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-12 DOI: 10.1002/mame.202400098

Matthew Phillips, Muh-Jang Chen, Jong Ryu, Mohammed Zikry

{"title":"Dynamic Behavior of Ribbed Viscoelastic CNT-PDMS Thin-Films for Multifunctional Applications","authors":"Matthew Phillips, Muh-Jang Chen, Jong Ryu, Mohammed Zikry","doi":"10.1002/mame.202400098","DOIUrl":"10.1002/mame.202400098","url":null,"abstract":"Tailored ribbing structures are obtained by large-scale rolling in polymer PDMS thin-films by adding carbon nanotubes (CNT) inclusions, which significantly improved the mechanical behavior of systems subjected to dynamic compressive strain rates. A nonlinear explicit dynamic three-dimensional finite-element (FE) scheme is used to understand and predict the thermomechanical response of the manufactured ribbed thin-film structures subjected to dynamic in-plane compressive loading. Representative volume element (RVE) FE models of the ribbed thin-films are subjected to strain rates as high as 104 s−1 in both the transverse and parallel ribbing directions. Latin Hypercube Sampling of the microstructural parameters, as informed from experimental observations, provide the microstructurally based RVEs. An interior-point optimization routine is also employed on a regression model trained from the FE predictions that can be used to design ribbed materials for multifunctional applications. The model verifies that damage can be mitigated in CNT-PDMS systems subjected to dynamic compressive loading conditions by controlling the ribbing microstructural characteristics, such as the film thickness and the ribbing amplitude and wavelength. This approach provides a framework for designing materials that can be utilized for applications that require high strain rate damage tolerance, drag reduction, antifouling, and superhydrophobicity.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258078","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

Multiscale Glass Fiber/Epoxy Nanocomposites Incorporated with Graphene and Zinc Oxide Nanoparticles: Enhanced Mechanical Properties 加入石墨烯和氧化锌纳米颗粒的多尺度玻璃纤维/环氧纳米复合材料：增强的力学性能

IF 3.9 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-11 DOI: 10.1002/mame.202400245

Barshan Dev, Shah Ashiquzzaman Nipu, Md Ashikur Rahman, Khondokar Raihan Mahmud, Maksudur Rahman Riyad, Md Zillur Rahman

{"title":"Multiscale Glass Fiber/Epoxy Nanocomposites Incorporated with Graphene and Zinc Oxide Nanoparticles: Enhanced Mechanical Properties","authors":"Barshan Dev, Shah Ashiquzzaman Nipu, Md Ashikur Rahman, Khondokar Raihan Mahmud, Maksudur Rahman Riyad, Md Zillur Rahman","doi":"10.1002/mame.202400245","DOIUrl":"https://doi.org/10.1002/mame.202400245","url":null,"abstract":"This study fabricates multiscale glass fiber/epoxy composites by incorporating graphene nanoparticles (GNPs) and zinc oxide nanoparticles (ZnO NPs) to investigate the influences of NPs on the mechanical properties of composites. The composites are manufactured using the compression molding technique with different GNP contents (i.e., 0, 0.5, 1, and 1.5 wt.%), whereas the contents of glass fibers and ZnO NPs remained the same at 40 and 4 wt.%, respectively. Their mechanical properties, chemical compositions, and fracture morphologies are then evaluated. It is found that the mechanical properties of composites improve significantly at a lower content (i.e., 0.5 wt.%) of GNPs and tend to decrease at higher contents (i.e., 1 and 1.5 wt.%). The composite is composed of 0.5 wt.% GNPs exhibit maximum tensile modulus and strength of 6.74 GPa and 230.25 MPa, and flexural modulus and strength of 16.43 GPa and 831.79 MPa, respectively, impact strength of 47.25 kJ m−2, and maximum hardness (97.96 Shore D), among all nanocomposites. Moreover, fracture morphologies reveal that composite failure is predominately caused by fiber breakage, fiber‐matrix debonding, voids, and GNP agglomeration. The outcomes of this study provide some insights to promote the application of manufactured multiscale composites in the aerospace, automotive, and marine industries.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"27 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Use of Low‐Quality Cotton‐Derived Cellulose Films as Templates for In Situ Conductive Polymer Synthesis as Promising Biomaterials in Biomedical Applications 使用低质量棉花纤维素薄膜作为原位导电聚合物合成的模板，将其作为生物医学应用中前景广阔的生物材料

IF 3.9 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-10 DOI: 10.1002/mame.202400246

Sahin Demirci, Mehtap Sahiner, Shaida S. Rumi, Selin S. Suner, Noureddine Abidi, Nurettin Sahiner

{"title":"The Use of Low‐Quality Cotton‐Derived Cellulose Films as Templates for In Situ Conductive Polymer Synthesis as Promising Biomaterials in Biomedical Applications","authors":"Sahin Demirci, Mehtap Sahiner, Shaida S. Rumi, Selin S. Suner, Noureddine Abidi, Nurettin Sahiner","doi":"10.1002/mame.202400246","DOIUrl":"https://doi.org/10.1002/mame.202400246","url":null,"abstract":"Here, the use of cellulose films (CFs) produced from low‐quality cotton is reported as a template for in situ synthesis of well‐known conductive polymers, e.g., polyaniline (PANI) and polypyrrole (PPY) via oxidative polymerization. Three successive monomer loading/polymerization cycles of aniline (ANI) and pyrrole (PY) within CFs as PANI@CF or PPY@CF are carried out to increase the amount of conductive polymer content. The contact angle (CA) for three times ANI and PPY loaded and polymerized CFs as 3PANI@CF and 3PPY@CF are determined as 26.3±2.8 and 42.3±0.6 degrees, respectively. As the electrical conductivity is increased with increased number of conductive polymer synthesis within CF, the higher conductivity values, 3×10−4±8.1×10−5 S.cm−1 and 2.1×10−3±5.8×10−4 S.cm−1, respectively are measured for 3PANI@CF and 3PPY@CF composites. It is found that PANI@CF composites are hemolytic, whereas PPY@CF composites are not at 1 mg mL−1 concentrations. All PPY@CF composites exhibit better biocompatibility than PANI@CF composites on L929 fibroblast cells with more than 70±8% viability at 1 mg of CF‐based conductive polymer composites. Moreover, MIC and MBC values of 3PPY@CF composites for Escherichia coli (ATCC8739) and Staphylococcus aureus (ATCC6538) are determined as 2.5 and 5.0 mg.mL−1, whereas these values are estimated as 5 and 10 mg.mL−1 for Candida albicans (ATCC10231).","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"114 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Recyclable and Stable Strain Sensors Based on Semi-Wrapped Structure of Silver Nanowires in Polyvinyl Alcohol for Human Motion Monitoring 基于聚乙烯醇中银纳米线半包裹结构的可回收稳定应变传感器，用于人体运动监测

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-09-02 DOI: 10.1002/mame.202400116

Yiyi Chen, Yanlin Li, Qi Zhang, Ting Peng, Huangzhong Yu, Shengwei Shi

引用次数: 0

Development and Evaluation of a Diclofenac-Loaded Thermogel for Topical Treatment of Corneal Alkali Burns 开发和评估用于局部治疗角膜碱烧伤的双氯芬酸热凝胶

IF 4.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2024-08-30 DOI: 10.1002/mame.202400164

Zhengwei Ge, Yanying Zhao, Tingting Guo, Shengnan Liang, Zhongping Chen

{"title":"Development and Evaluation of a Diclofenac-Loaded Thermogel for Topical Treatment of Corneal Alkali Burns","authors":"Zhengwei Ge, Yanying Zhao, Tingting Guo, Shengnan Liang, Zhongping Chen","doi":"10.1002/mame.202400164","DOIUrl":"10.1002/mame.202400164","url":null,"abstract":"Corneal alkali burns have become a frequent and urgent issue in ophthalmology, but current treatments are limited. To address this, a diclofenac-loaded thermogel with anti-inflammatory agents is developed to target inflammation and improve drug delivery for corneal alkali burns. Thermogels are prepared by dissolving methylcellulose (MC) and hydroxypropyl methylcellulose (HPMC) in phosphate-buffered saline (PBS), adding diclofenac (DF), and storing the solution at 4 °C. The thermogel's temperature-sensitive behavior and injectability at 35 °C are assessed. Freeze-dried thermogels are examined using scanning electron microscopy. Rheological properties, swelling behavior, and in vitro release studies are conducted. In vitro and in vivo biocompatibility tests are performed. A corneal alkali burn model is established in rats, and different treatments are administered for 7 days. Eyeballs are collected for histological and molecular analysis. The thermogel formulation formed a stable gel at 35 °C and continuously released DF for 7 days. In vitro and in vivo tests confirmed the thermogels' excellent biocompatibility. The released DF promotes the expression of the anti-inflammatory cytokine interleukin-10 (IL-10) and inhibits the expression of pro-inflammatory factors TNF-α and vascular endothelial growth factor (VEGF). This novel DF/thermogel offers an efficient, topical, and cost-effective approach with significant potential for treating corneal alkali burns.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400164","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225180","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