Macromolecular Materials and Engineering最新文献_第2页

Smart Graphene-Integrated PCL/COC Ternary Nanocomposites for Enhanced Mechanical Strength and Antibacterial Functionality 智能石墨烯集成PCL/COC三元纳米复合材料增强机械强度和抗菌功能

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-23 DOI: 10.1002/mame.70360

Zakia Riaz, Israr Ud Din, Kamran A. Khan

{"title":"Smart Graphene-Integrated PCL/COC Ternary Nanocomposites for Enhanced Mechanical Strength and Antibacterial Functionality","authors":"Zakia Riaz, Israr Ud Din, Kamran A. Khan","doi":"10.1002/mame.70360","DOIUrl":"https://doi.org/10.1002/mame.70360","url":null,"abstract":"The development of multifunctional polymeric nanocomposites possessing high mechanical strength, thermal stability, and broad-spectrum antibacterial activity is of significant interest for advanced biomedical and soft robotic applications. In this study, smart PCL/COC/GNP ternary nanocomposites were prepared via a facile and scalable solution-casting method. Incorporation of 10 wt.% COC (cyclic olefin copolymer) into PCL poly(ε-caprolactone) imparted enhanced stiffness and dimensional stability, while graphene nanoplatelets (0.5 and 1.0 wt.%) introduced hierarchical reinforcement and antibacterial functionality. Dynamic mechanical analysis revealed a substantial increase in storage modulus from ∼250 MPa (PCL) to ∼380 MPa (PCL/COC/GNP-2) and in loss modulus from ∼12 to ∼39 MPa, demonstrating improved viscoelastic behavior. Thermogravimetric analysis confirmed enhanced thermal stability with delayed degradation onset. The composites exhibited rapid one-way shape memory recovery and broad-spectrum antibacterial efficacy against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli, highlighting their potential as mechanically robust, thermally stable, and antimicrobial smart materials for next-generation biomedical and adaptive structural systems.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70360","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048194","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

Development of PCL-Silk Fibroin-Based Wound Dressings Incorporated with Green-Synthesized Silver Nanoparticles 含绿色合成纳米银的聚乳酸丝素基创面敷料的研制

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-19 DOI: 10.1002/mame.70359

Zeinab Mirbagheri, Afsaneh Fakhar, Sheyda Labbaf, Tayebeh Behzad, Mahsa Mohammadzadeh

{"title":"Development of PCL-Silk Fibroin-Based Wound Dressings Incorporated with Green-Synthesized Silver Nanoparticles","authors":"Zeinab Mirbagheri, Afsaneh Fakhar, Sheyda Labbaf, Tayebeh Behzad, Mahsa Mohammadzadeh","doi":"10.1002/mame.70359","DOIUrl":"https://doi.org/10.1002/mame.70359","url":null,"abstract":"Despite advancements in wound dressing development, effective wound repair still remains an unmet clinical need, as current clinical dressings fail to fully replicate the properties of healthy skin. In this regard, the current study utilizes polycaprolactone (PCL) and silk fibroin (SF) to create wound dressings through electrospinning. To enhance the antibacterial properties of the dressings, silver nanoparticles (AgNPs) with an average size of 78.42 ± 8.2 nm were initially synthesized using a green method with aloe vera extract and incorporated into the polymeric matrix. The electrospun PCL/SF nanofibers exhibited an average diameter of 204 ± 0.03 nm, which increased to 233 ± 0.05 nm with the inclusion of AgNPs. The contact angles for PCL/SF and PCL/SF/AgNPs were 62.07 ± 0.98° and 71.75 ± 2.89°, respectively. The incorporation of AgNPs significantly reduced the colony counts of Staphylococcus aureus and Escherichia coli to 9.7 × 109 and 1.157 × 1010 CFU/mL, respectively, compared to the control group. Additionally, cytotoxicity studies using L929 fibroblast cells and an MTT assay confirmed the non-cytotoxic nature of the optimized scaffold. These findings demonstrate that the inclusion of Ag-AvNPs greatly enhanced the antibacterial and biological performance of the electrospun scaffolds, highlighting their potential for advanced wound care and skin tissue regeneration.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70359","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149047793","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

Dynamic Ionic Crosslinking of Epoxidized Natural Rubber for Rebonding and Reprocessable Carbon Black–Reinforced SBR/BR Composites 环氧化天然橡胶的动态离子交联用于再粘合和可再加工炭黑增强SBR/BR复合材料

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-18 DOI: 10.1002/mame.70270

Piyawadee Luangchuang, Yeiangchart Boonluksiri, Jobish Johns, Wisut Kaewsakul, Yeampon Nakaramontri, Frank Clemens

{"title":"Dynamic Ionic Crosslinking of Epoxidized Natural Rubber for Rebonding and Reprocessable Carbon Black–Reinforced SBR/BR Composites","authors":"Piyawadee Luangchuang, Yeiangchart Boonluksiri, Jobish Johns, Wisut Kaewsakul, Yeampon Nakaramontri, Frank Clemens","doi":"10.1002/mame.70270","DOIUrl":"https://doi.org/10.1002/mame.70270","url":null,"abstract":"This study presents a dynamic ionic crosslinking strategy for developing self-healing and reprocessable elastomeric composites based on epoxidized natural rubber (ENR) containing 50 mol% epoxide which was chemically modified with imidazole (IM) to generate reversible ionic interactions and used as a functional modifier in carbon black (CB)-filled styrene–butadiene rubber (SBR)/butadiene rubber (BR) blends commonly applied in tire and general rubber products. The imidazole-modified ENR (mE50) introduces dynamic imidazolium–epoxy ionic crosslinks that enable autonomous self-healing, while CB reinforcement provides mechanical strength, thermal stability, and efficient stress transfer. The compounding sequence is critical, as preferential adsorption of SBR/BR onto CB surfaces optimizes rubber–filler interactions without compromising the healing capability of the ENR phase. Mechanical, dynamic mechanical, temperature scanning stress relaxation (TSSR), and reprocessing evaluations demonstrate that optimized mE50–CB composites exhibit a tensile strength of ∼10 MPa, elongation at break above 400%, and self-healing efficiency exceeding 100% based on modulus recovery, together with good reprocessability after damage. The synergistic combination of dynamic ionic networks and well-dispersed CB enhances energy dissipation, molecular mobility, and stress redistribution. This work establishes ionically crosslinked ENR as an effective modifier for improving durability, healing efficiency, and recyclability in CB-filled composites, offering a viable pathway toward sustainable high-performance elastomers.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70270","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994496","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

Bovine Ovarian Tissue Engineering: From Biomaterial Design to Translational Outlook 牛卵巢组织工程：从生物材料设计到翻译展望

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-17 DOI: 10.1002/mame.70287

João Paulo Ruiz Lucio de Lima Parra, Rodrigo Paolo Flores Abuná, Bianca Paxiega Bandeira, Luciana Lamarão Damous, Edmund Chada Baracat, Flávio Vieira Meirelles, Maria Angelica Miglino

{"title":"Bovine Ovarian Tissue Engineering: From Biomaterial Design to Translational Outlook","authors":"João Paulo Ruiz Lucio de Lima Parra, Rodrigo Paolo Flores Abuná, Bianca Paxiega Bandeira, Luciana Lamarão Damous, Edmund Chada Baracat, Flávio Vieira Meirelles, Maria Angelica Miglino","doi":"10.1002/mame.70287","DOIUrl":"https://doi.org/10.1002/mame.70287","url":null,"abstract":"Ovarian tissue engineering may restore endocrine and reproductive function, yet hydrogels, extracellular matrix (ECM)-derived systems, decellularized ECM (dECM) platforms, and printable bioinks remain inconsistently defined, processed, and compared. This structured narrative review examines studies published between 2005 and 2026 on three-dimensional ovarian biomaterials, emphasizing bovine-derived ECM and the bovine ovary as a translational large-animal platform. We organize the literature into functionally distinct classes: native tissue benchmarks, decellularized ovarian scaffolds, ovarian ECM-derived hydrogels, non-ECM hydrogels, and biofabrication-oriented systems. These classes address different components of ovarian bioengineering. Native bovine tissue and bovine dECM define anatomical, stromal, and compositional constraints; non-ECM hydrogels clarify mechanical and transport requirements; ovarian ECM-derived hydrogels improve biological specificity and follicle-supportive performance; and printable hybrid systems advance construct architecture and fabrication control. However, no current platform constitutes a fully validated bovine ovarian bioink. Key gaps include combining ovary-specific matrix bioactivity with extrusion-compatible rheology, preserving follicle-supportive microenvironments after processing and printing, overcoming diffusion and vascularization limits, ensuring immunological safety and batch reproducibility, and standardizing functional benchmarking. We propose bovine ovarian bioinks as intermediate translational platforms requiring hybrid dECM–polymer formulations, multiparametric quality control, and predictive in vitro, ex vivo, and large-animal-informed validation pipelines for future clinically oriented ovarian construct development.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70287","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994505","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

Amino Acid-Based Thermoplastic Polyurethanes for Pelvic Floor Tissue Scaffolds 用于盆底组织支架的氨基酸基热塑性聚氨酯

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-16 DOI: 10.1002/mame.70353

Charlie Bateman, Catherine Fulton, Fionnuala Lundy, Biqiong Chen

{"title":"Amino Acid-Based Thermoplastic Polyurethanes for Pelvic Floor Tissue Scaffolds","authors":"Charlie Bateman, Catherine Fulton, Fionnuala Lundy, Biqiong Chen","doi":"10.1002/mame.70353","DOIUrl":"https://doi.org/10.1002/mame.70353","url":null,"abstract":"Biocompatible and biodegradable elastomers are of interest in soft tissue repair. A biodegradable thermoplastic polyurethane (TPU) was synthesized using an amino acid-based diisocyanate, along with polycaprolactone diol and polyethylene glycol, to improve its biocompatibility, and different reaction times were investigated to study their effects. The structure, mechanical, thermal, swelling, and biodegradation behavior, as well as cytotoxicity, of the resulting polymers were characterized. The optimal TPU showed a tensile strength of 6.5 MPa, a Young's modulus of 26.1 MPa, and good resilience upon cyclic loading. The TPU presented no cytotoxic effect when exposed to dental pulp fibroblasts. Aligned porous scaffolds were produced by using a freeze–drying method with a custom-made mold to mimic the structure and mechanical properties of native pelvic floor tissue. The scaffolds exhibited a tensile strength of 1.24 MPa and Young's modulus of 4.76 MPa, both within the ranges of tensile strength and Young's modulus of native cardinal ligaments and uterosacral ligaments. This work demonstrates that the amino acid-based TPU has potential for application in pelvic floor tissue scaffolds.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70353","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994081","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

Graphene-Based Conductive Polymer Composites for Piezoresistive Sensors: Materials, Sensing Mechanisms, and Performance 用于压阻式传感器的石墨烯基导电聚合物复合材料：材料、传感机制和性能

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-11 DOI: 10.1002/mame.70350

Tran Van Khai, Nguyen Xuan Sang, KK Sadasivuni, Kumud M. Tripathi, Dusan Losic, Tran Thanh Tung

{"title":"Graphene-Based Conductive Polymer Composites for Piezoresistive Sensors: Materials, Sensing Mechanisms, and Performance","authors":"Tran Van Khai, Nguyen Xuan Sang, KK Sadasivuni, Kumud M. Tripathi, Dusan Losic, Tran Thanh Tung","doi":"10.1002/mame.70350","DOIUrl":"https://doi.org/10.1002/mame.70350","url":null,"abstract":"Conductive polymer composites (CPCs) incorporating nano-carbon fillers have emerged as promising materials for lightweight, flexible, and high-performance piezoresistive sensors. Owing to their excellent electrical conductivity, mechanical strength, large surface area, and tunable nanostructures, graphene-based CPCs (G-CPCs) have demonstrated strong potential for strain, pressure, and deformation sensing. Recent studies have reported high sensitivities with gauge factors ranging from several to over 10 000, broad sensing ranges, fast response/recovery times, and excellent cyclic stability depending on composite design and sensing mechanisms. The piezoresistive behavior of G-CPCs is primarily governed by conductive network evolution, electron tunneling effects, microcrack propagation, and graphene disconnection/reconnection. Sensor performance is strongly influenced by graphene morphology, nanostructural arrangement, filler content, dispersion quality, polymer matrix selection, and fabrication methods. Various processing strategies, including solution mixing, melt blending, in situ polymerization, coating, electrospinning, and 3D printing, have been explored to optimize conductive pathways and enhance sensing performance. This review systematically summarizes recent progress in the materials design, nanostructural engineering, fabrication, sensing mechanisms, and performance of G-CPC piezoresistive sensors. Current challenges, including signal stability, hysteresis, durability, and large-scale manufacturing, are also discussed together with future opportunities for wearable electronics, healthcare monitoring, soft robotics, and intelligent structures.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70350","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943160","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

Halloysite Nanotubes as Active Modulators for Tunable Charge Transport in PEDOT:PSS 高岭土纳米管作为PEDOT:PSS中可调谐电荷输运的有源调制器

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-08 DOI: 10.1002/mame.70351

Luigi Fabiano, Giuseppe Cinà, Rosalinda Sciacca, Alessandra Armeli, Marina Massaro, Rita Sánchez-Espejo, Giovanna Calabrese, Grazia Maria Lucia Messina, Giovanni Marletta, Serena Riela

{"title":"Halloysite Nanotubes as Active Modulators for Tunable Charge Transport in PEDOT:PSS","authors":"Luigi Fabiano, Giuseppe Cinà, Rosalinda Sciacca, Alessandra Armeli, Marina Massaro, Rita Sánchez-Espejo, Giovanna Calabrese, Grazia Maria Lucia Messina, Giovanni Marletta, Serena Riela","doi":"10.1002/mame.70351","DOIUrl":"https://doi.org/10.1002/mame.70351","url":null,"abstract":"Halloysite nanotubes (HNTs) are investigated as functionally active nanofillers for tuning PEDOT:PSS thin films. HNTs from Dragon Mine (DG, USA) and Matauri Bay (NZ, New Zealand), characterized by different aspect ratios and surface chemical characteristics, are incorporated at 1.0–7.5 wt.% without secondary dopants to highlight specific HNT-related interfacial effects. A non-monotonic dependence of local conductance on DG content is observed, with a maximum at low loading (2.5 wt.%). This trend reflects the balance between enhanced connectivity of PEDOT-rich domains at low concentrations and disruption of conductive pathways due to nanotube aggregation at higher loadings. It is suggested that DG acts as an active modulator, promoting polymer chain reorganization and enabling a denser hopping network, thereby enhancing local electrical response and mechanical stiffness. In contrast, NZ behaves as a passive filler, preserving the intrinsic ion-storage capability of PEDOT:PSS without improving charge transport, highlighting the dominant role of interfacial electrostatic interactions. Electrochemical analysis shows that DG favors electronic transport at the expense of ionic accumulation, whereas NZ maintains capacitive behavior. The nanocomposites exhibit good biocompatibility, with improved SH-SY5Y cell viability at low DG loading. These results provide design guidelines for independently tuning electrical, electrochemical, and mechanical properties in conductive polymer nanocomposites.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70351","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942695","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

Nanostructured Sulfonated Polystyrene/Modified Chitosan Composite Membranes for Direct Methanol Fuel Cells 用于直接甲醇燃料电池的纳米结构磺化聚苯乙烯/改性壳聚糖复合膜

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-07 DOI: 10.1002/mame.70329

Mahdi Tohidian, Mehdi Zolfi Zinab, Negar Hanaei

{"title":"Nanostructured Sulfonated Polystyrene/Modified Chitosan Composite Membranes for Direct Methanol Fuel Cells","authors":"Mahdi Tohidian, Mehdi Zolfi Zinab, Negar Hanaei","doi":"10.1002/mame.70329","DOIUrl":"https://doi.org/10.1002/mame.70329","url":null,"abstract":"Sulfonated polystyrene (SPS)-based proton exchange membranes were fabricated and modified by incorporating pristine chitosan nanoparticles (CS), sulfonated chitosan nanoparticles (SCS), and phosphotungstic acid–functionalized chitosan nanoparticles (PWCS) to form acid–base blends that enhance ionic conductivity and methanol barrier properties for direct methanol fuel cell (DMFC) applications. Fourier transform infrared (FTIR) spectroscopy confirmed successful functionalization of chitosan-based nanoparticles, while the values of water uptake and ion exchange capacity (IEC) of the nanocomposite membranes revealed progressive enhancement upon incorporation of modified chitosan-based nanoparticles. Bound and free water analysis indicated improved proton transport channels, consistent with the observed increase in proton conductivity from 0.7 mS.cm−1 (SPS) to 3.6 mS.cm−1 (SPS-PWCS) at ambient temperature. Methanol permeability was reduced from 1.17 × 10−7 cm2.s−1 (SPS) to 1.00 × 10−7 cm2.s−1 for SPS-CS, while SPS-PWCS exhibited a moderate permeability of 1.56 × 10−7 cm2.s−1 coupled with the highest selectivity (23,077 S.s.cm−3), indicating an optimal trade-off between proton transport and fuel crossover suppression. These findings demonstrate that PWCS incorporation synergistically enhances both structural integrity and electrochemical performance, making SPS-PWCS membranes promising candidates for DMFC operation.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70329","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942390","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

Composition-Tuned Bimetallic MOF/Poly(Vinyl Alcohol) Composite Films for High-Performance Triboelectric Nanogenerators 用于高性能摩擦电纳米发电机的成分调谐双金属MOF/聚乙烯醇复合薄膜

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-06 DOI: 10.1002/mame.70313

Yutong Ding, Linbing Deng, Jun Jin, Xiaodong Wang, Tairong Kuang

{"title":"Composition-Tuned Bimetallic MOF/Poly(Vinyl Alcohol) Composite Films for High-Performance Triboelectric Nanogenerators","authors":"Yutong Ding, Linbing Deng, Jun Jin, Xiaodong Wang, Tairong Kuang","doi":"10.1002/mame.70313","DOIUrl":"https://doi.org/10.1002/mame.70313","url":null,"abstract":"Polymer triboelectric films are key components of flexible triboelectric nanogenerators (TENGs), as their composition and interfacial characteristics govern charge generation and output performance. Poly(vinyl alcohol) (PVA) is an attractive positive triboelectric polymer due to its film-forming ability and flexibility; however, pristine PVA films exhibit limited output. Although filler incorporation improves polymer triboelectric layers, the influence of bimetallic metal-organic framework (MOF) composition and loading remains unclear. Here, three 2-methylimidazole-based bimetallic MOFs, CoZn-MOF, CoCu-MOF, and CoNi-MOF, were synthesized and incorporated into PVA to construct composite triboelectric films. Their performance was evaluated using vertical contact-separation TENGs with poly(vinylidene fluoride) as the negative layer. All MOF/PVA composites exhibited enhanced output compared with pristine PVA. The optimized CoNi-MOF/PVA TENG with 3 wt% filler achieved the best performance, delivering an open-circuit voltage of 194 V, a short-circuit current of 3.0 µA, and a transferred charge density of 175 µC·m−2. It also generated 98 µW output power, charged a capacitor, powered over 100 light-emitting diodes (LEDs), and enabled self-powered tapping intensity and motion sensing. This work demonstrates a composition-tuning strategy for designing MOF/PVA composite films for mechanical energy harvesting and wearable sensing.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70313","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942435","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

A Review on Polymer Bonding Through Interdiffusion and Role of Deformation-Acceleration 聚合物间扩散键合及其变形加速作用研究进展

IF 5.2 3区材料科学

Macromolecular Materials and Engineering Pub Date : 2026-09-06 DOI: 10.1002/mame.70336

Ajay Vallabh, John G. Tsavalas

{"title":"A Review on Polymer Bonding Through Interdiffusion and Role of Deformation-Acceleration","authors":"Ajay Vallabh, John G. Tsavalas","doi":"10.1002/mame.70336","DOIUrl":"https://doi.org/10.1002/mame.70336","url":null,"abstract":"Since 1950, global plastic production has increased at an average rate of approximately 8.5% per year, resulting in a total carbon footprint of nearly two gigatonnes of carbon dioxide-equivalent (1.8 Gt <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>C</mi>\u0000 <msub>\u0000 <mi>O</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 </mrow>\u0000 <annotation>$CO_{2}$</annotation>\u0000 </semantics></math>-equivalent) in 2019, accounting for 4.5% of all worldwide greenhouse-gas (GHG) emissions. These trends highlight the urgent need for environmentally sustainable polymer manufacturing technologies. This review examines polymer bonding methods and techniques, which play a critical role in a wide range of polymer-based manufacturing processes. Particular emphasis is placed on a recently identified, energy-efficient and environmentally friendly bonding phenomenon referred to as deformation-induced bonding (DIB), and its potential scope across rapidly growing areas, including pharmaceutical, recycling, bio-packaging, lamination and sealing, 3D printing, and advancements in traditional bonding processes. The review further provides a comparative process-level analysis of the energy consumption and cost associated with selected conventional heat and adhesive-based bonding methods and deformation-induced roll bonding (DIRB), highlighting the potential energy and cost savings achievable through the adoption of DIB-based technologies. Finally, the review outlines key future research directions for the development and implementation of DIB-based bonding technologies.","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 9","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70336","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942436","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