Materials Today Communications最新文献_第2页

A photocontrolled self-healing composite coating based on polycaprolactone for enhancing the corrosion resistance and antimicrobial properties of biodegradable magnesium alloys 一种基于聚己内酯的光控自愈复合涂层，用于增强可生物降解镁合金的耐腐蚀和抗菌性能

3区材料科学

Materials Today Communications Pub Date : 2025-12-23 DOI: 10.1016/j.mtcomm.2025.114559

Qi Han, Zhenjie Zhang, Run Liu, Leiting Yu, Yang Liu, Yun Zhao, Feng Jin, Minfang Chen

{"title":"A photocontrolled self-healing composite coating based on polycaprolactone for enhancing the corrosion resistance and antimicrobial properties of biodegradable magnesium alloys","authors":"Qi Han, Zhenjie Zhang, Run Liu, Leiting Yu, Yang Liu, Yun Zhao, Feng Jin, Minfang Chen","doi":"10.1016/j.mtcomm.2025.114559","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2025.114559","url":null,"abstract":"A photocontrolled self-healing composite coating consisting of polycaprolactone (PCL) and Prussian blue nanoparticles loaded with paeonol and modified with polydopamine (Pae/PB@PDA) was prepared on the surface of biomedical magnesium alloys pretreated with polydopamine (PDA). Experimental results demonstrate that this composite coating significantly improves the corrosion resistance of magnesium alloys. Its corrosion current density decreased to 0.751±0.035 μA/cm², and the annual corrosion rate was only 0.52±0.01 mm/y, which is significantly better than that of a PCL coating only. Under the triggering of near-infrared light (808 nm, 1.0 W/cm²), the self-healing function of the PCL coating was significantly enhanced by the photothermal synergistic effect of PDA and PB. The corrosion current density of the repaired coating was 0.926±0.160 μA/cm², differing slightly from that of the original coating. In addition, the coating achieves an inhibition rate of over 99% against Escherichia coli and Staphylococcus aureus with paeonol and photothermal therapy (PTT). This study provides an integrated solution for degradable magnesium alloy implants that combines self-healing, long-lasting anti-corrosion and intelligent antibacterial functions. • A self-healing P-PCL/Pae/PB@PDA composite coating was prepared on Mg alloy. • P-PCL/Pae/PB@PDA composite coating exhibits excellent photothermal property. • Composite coating greatly improves the corrosion resistance of Mg alloy. • Composite coating exhibits good antibacterial efficiency with NIR light. • After healing, the composite coating still provides effective protection.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":"50 1","pages":"114559-114559"},"PeriodicalIF":0.0,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147896855","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: 1

Synergistic catalytic effect of carboxymethyl chitosan-Co and ZIF-67 on enhancing the combustion and mechanical properties performance of ammonium perchlorate-based composite propellants 羧甲基壳聚糖- co和ZIF-67对高氯酸铵基复合推进剂燃烧性能和力学性能的协同催化作用

3区材料科学

Materials Today Communications Pub Date : 2025-12-17 DOI: 10.1016/j.mtcomm.2025.114529

Wei Wang, Heng Xu, Haozhe Li, Xiandie Zhang, Zhijie Fan, Bizheng Chen, Kai Yao, Xiaode Guo

引用次数: 0

Controllable fabrication of porous PLGA microspheres with adjustable degradability and morphology as cell carrier 具有可降解性和形态可调节的多孔聚乳酸微球作为细胞载体的可控制备

3区材料科学

Materials Today Communications Pub Date : 2025-12-16 DOI: 10.1016/j.mtcomm.2025.114520

Yi Zhou, Zhihong Liu, Xian Luo, Kaichun Li, Dong Zhou

{"title":"Controllable fabrication of porous PLGA microspheres with adjustable degradability and morphology as cell carrier","authors":"Yi Zhou, Zhihong Liu, Xian Luo, Kaichun Li, Dong Zhou","doi":"10.1016/j.mtcomm.2025.114520","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2025.114520","url":null,"abstract":"Polylactic acid-glycolic acid (PLGA) porous microspheres have attracted significant scholarly interest as cell carriers, attributed to their exceptional biocompatibility and three-dimensional porous architecture. Nonetheless, the modulation of surface morphology and degradability remains a pivotal factor affecting cell adhesion and proliferation. In this study, PLGA (75:25) was synthesized through an anhydrous, oxygen-free ring-opening polymerization process, employing a lactic acid/glycolide molar ratio of 3:1. Subsequently, PLGA porous microspheres, with diameters ranging from 200 to 250 µm, were fabricated via the double emulsion technique. The microspheres were produced using 4 % sodium bicarbonate as the pore-forming agent, with a stirring speed of 300 r/min and a 2 % polyvinyl alcohol (PVA) concentration in the outer aqueous phase. The resultant microspheres demonstrated a narrow particle size distribution, uniform surface porosity, and a high pore-forming efficiency. In comparison to solid microspheres, the degradation rate of PLGA porous microspheres was markedly elevated, as evidenced by a decrease in pH from 7.28 to 7.17 over a 28 days period. Additionally, the surface morphology of the microspheres exhibited significant collapse. Furthermore, the viability of L929 cells cultured with PLGA microspheres surpassed 95 %, indicating superior biocompatibility and significantly promoting cell adhesion and proliferation. This investigation effectively optimized the preparation process, resulting in PLGA microspheres characterized by uniform particle size and high porosity, thus offering an optimal scaffold material for biomedical applications.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":"50 1","pages":"114520-114520"},"PeriodicalIF":0.0,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903624","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: 1

High-valence rhenium doping for intensifying optical and transparent thermal performance of Cs0.33WO3 高价铼掺杂增强Cs0.33WO3的光学和透明热性能

3区材料科学

Materials Today Communications Pub Date : 2025-12-13 DOI: 10.1016/j.mtcomm.2025.114502

Shuiping Zhong, Tianhan Lei, Ding Tang, Yan Ding, Guangsheng Zeng, Junnan Chen, Shouxing He, Wen Tan, Weng Wei

{"title":"High-valence rhenium doping for intensifying optical and transparent thermal performance of Cs0.33WO3","authors":"Shuiping Zhong, Tianhan Lei, Ding Tang, Yan Ding, Guangsheng Zeng, Junnan Chen, Shouxing He, Wen Tan, Weng Wei","doi":"10.1016/j.mtcomm.2025.114502","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2025.114502","url":null,"abstract":"In this work, high-valence rhenium (Re) was firstly used as the dopant to improve the optical and transparent thermal properties of Cs 0.33 WO 3 . Among all samples, the film with 2 mol% Re doping exhibited the best transparent thermal insulation performance, with a luminous transmittance ( T lum ) of 53.5 % and a near-infrared (NIR) shielding efficiency ( Ψ NIR ) of 70.1 %. Structural and spectroscopic analyses revealed that Re 6 + successfully substituted for W 6+ in the hexagonal lattice, inducing the formation of W 5+ species and oxygen vacancies. These defect states enhanced the free carrier concentration and promoted small polaron absorption, thereby improving the NIR shielding performance. The improved transparency was also attributed to enhanced hydrophilicity and particle dispersion. The results highlighted the potential of high-valence Re doping as an effective strategy to modulate the electronic structure and defect chemistry of Cs 0.33 WO 3 , providing a new pathway for the design of advanced energy-saving smart window coatings.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":"50 1","pages":"114502-114502"},"PeriodicalIF":0.0,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147904624","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

Salt-resistant composite aerogel with vertical channels and low enthalpy for continuous solar desalination 具有垂直通道和低焓的连续太阳能脱盐的耐盐复合气凝胶

3区材料科学

Materials Today Communications Pub Date : 2025-12-13 DOI: 10.1016/j.mtcomm.2025.114503

Huijie Liu, Qiaohua Qiu

引用次数: 0

Engineered baicalin-loaded chitosan nanoparticles with sustained release and biocompatibility 具有缓释和生物相容性的壳聚糖纳米粒

3区材料科学

Materials Today Communications Pub Date : 2025-12-01 DOI: 10.1016/j.mtcomm.2025.114441

Na Ying, Shuya An, Shiyu Wu, Jing Yang, Jun Ho Ji, Haoyuan Su, Jun Duan, Hongzhi Pan, Dongdong Zeng

引用次数: 0

A novel powder metallurgy strategy for fabricating copper foam sandwiches with metallurgical bonding interfaces 一种新型粉末冶金方法制备具有冶金结合界面的泡沫铜夹层

3区材料科学

Materials Today Communications Pub Date : 2025-11-30 DOI: 10.1016/j.mtcomm.2025.114428

He Yanping, Jian Xiao, Gong Jiahao, Guibao Qiu

{"title":"A novel powder metallurgy strategy for fabricating copper foam sandwiches with metallurgical bonding interfaces","authors":"He Yanping, Jian Xiao, Gong Jiahao, Guibao Qiu","doi":"10.1016/j.mtcomm.2025.114428","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2025.114428","url":null,"abstract":"This study introduces a powder metallurgy-based strategy to fabricate copper foam sandwiches (CFSs) with metallurgical bonding interfaces, thereby overcoming the interfacial limitations of conventional riveted or brazed CFSs. A panel-core-panel structure was constructed using copper powder and needle-shaped carbamide, followed by pressing and gradient sintering, which simultaneously enabled porous core formation and interfacial bonding. SEM-EDS, XRD and μ -CT analyses confirmed continuous Cu distribution across the CFS interface via atomic diffusion. Mechanical testing showed that the CFS exhibited a compressive strength of 24.8 MPa (comparable to that of single-layer copper foam, 25.2 MPa) and a shear strength of 43.2 MPa, which was approximately ten times higher than that of single-layer copper foam (4.1 MPa) and over thirteen times greater than that of brazed CFS (3.2 MPa). This improvement results from reduced interfacial resistance due to metallurgical bonding. The proposed strategy achieves structural-mechanical synergy and offers a scalable solution for developing high-strength metal foam sandwich structures.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":"50 1","pages":"114428-114428"},"PeriodicalIF":0.0,"publicationDate":"2025-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330697","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

Block copolymer micelles based on TMZ conjugate for controlled drug delivery of doxorubicin 基于TMZ缀合物的嵌段共聚物胶束用于阿霉素的控制给药

3区材料科学

Materials Today Communications Pub Date : 2025-11-25 DOI: 10.1016/j.mtcomm.2025.114396

Ke Zhang, Gang Zhao, Hena Zhang, Yanhui Shi, Yun Liu, Yuling Li

引用次数: 0

Optimization of QCDs synthesis temperature for enhanced biocompatibility, antibacterial activity, and osteogenic potential 优化QCDs合成温度以增强生物相容性、抗菌活性和成骨潜能

3区材料科学

Materials Today Communications Pub Date : 2025-11-22 DOI: 10.1016/j.mtcomm.2025.114376

Hao Jiang, Qianglong Chen, Shiyu Yu, Jinniu Zhang, Chen Wang, Jie Hu, Hui He, Haijiao Mao, Fengxuan Han

引用次数: 0

Synergistic enhancement of visible-light photocatalysis in TiO₂ microspheres via co-modification with CuS nanoparticles and black phosphorus quantum dots cu纳米粒子和黑磷量子点共改性对tio2微球可见光催化的协同增强作用

3区材料科学

Materials Today Communications Pub Date : 2025-11-20 DOI: 10.1016/j.mtcomm.2025.114363

Dunhua Hong, Jing Jiang, Xin Lü, Xiude Yang, Jing Xing, Furu Zhong, Sha Luo, Ying Wang, Yulan Wang, Fengxia Wang, Wenfei Li, G. Liu

引用次数: 0