Materials Today Communications最新文献

Rectorite/polyimide films with superior atomic oxygen resistance by a dual-protection strategy 累托石/聚酰亚胺薄膜通过双重保护策略具有优异的抗氧原子性

3区材料科学

Materials Today Communications Pub Date : 2025-12-29 DOI: 10.1016/j.mtcomm.2025.114587

Ruiheng Feng, Qiang Wei, Chuanjin Huang, Libin Zhao

{"title":"Rectorite/polyimide films with superior atomic oxygen resistance by a dual-protection strategy","authors":"Ruiheng Feng, Qiang Wei, Chuanjin Huang, Libin Zhao","doi":"10.1016/j.mtcomm.2025.114587","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2025.114587","url":null,"abstract":"Polyimide (PI) has become an indispensable key material for low-Earth orbit (LEO) spacecraft due to its excellent performance. However, it is highly susceptible to atomic oxygen (AO) erosion, which severely limits the service lifetime of spacecraft. Herein, a dual-protection (matrix modification and coating) strategy is proposed to improve the anti-AO capacity of PI by introducing rectorite nanosheets (RNs) with outstanding AO resistance. The dual-protected rectorite/PI film shows lower AO erosion yield (only 4.04% of the pristine PI film) and more stable mechanical properties after AO irradiation. The AO-resistant mechanism is attributed to the blocking and adsorbing AO of RNs based on the experiment investigation and molecular dynamic simulation. The key advantage of this method is that, even if the coating is compromised, the RNs embedded in the matrix can still provide resistance against AO erosion. Consequently, this protection strategy provides a new approach for constructing superior AO-resistant PI films applicable in LEO conditions. • Rectorite nanosheets are simply and quickly fabricated by ball milling • Dual-protected rectorite/polyimide films show exceptional atomic oxygen resistance • The advantages of the dual-protection strategy are thoroughly explored • The blocking and adsorbing mechanisms of rectorite nanosheets are deeply revealed","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":"50 1","pages":"114587-114587"},"PeriodicalIF":0.0,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331874","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 PLGA-chitosan nanocarrier: Fabrication, characterization, and in vitro differentiation evaluation on PC12 cells 姜黄素包封plga -壳聚糖纳米载体的制备、表征及对PC12细胞的体外分化评价

3区材料科学

Materials Today Communications Pub Date : 2025-12-23 DOI: 10.1016/j.mtcomm.2025.114549

Renzhang Liang, Cuilian Yu, Dong Ma, Xiaohan Cao, Liying Bai, Yulan Li, Jingxian Zhang, Jiayue Liu, Xia Qiao, Bingren Tian

{"title":"Curcumin encapsulated PLGA-chitosan nanocarrier: Fabrication, characterization, and in vitro differentiation evaluation on PC12 cells","authors":"Renzhang Liang, Cuilian Yu, Dong Ma, Xiaohan Cao, Liying Bai, Yulan Li, Jingxian Zhang, Jiayue Liu, Xia Qiao, Bingren Tian","doi":"10.1016/j.mtcomm.2025.114549","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2025.114549","url":null,"abstract":"Curcumin, a polyphenolic compound, demonstrates neuroprotective potential through its antioxidant, anti-inflammatory, and anti-amyloid activities. To enhance its delivery, we fabricated poly(lactic-co-glycolic acid) (PLGA) nanoparticles encapsulating curcumin and stabilized them with chitosan. Successful formulation was confirmed by FTIR, XRD, and SEM analyses. Zeta potential measurement confirmed a surface charge reversal from -28.1 mV (uncoated PLGA) to + 14.7 mV after chitosan coating. The nanoparticles exhibited favorable drug loading (4.09 ± 0.02 % to 5.67 ± 0.01 %) and encapsulation efficiency (14.33 ± 0.08 % to 19.85 ± 0.04 %), and provided a sustained release profile (>24 h) enhanced by chitosan. The curcumin encapsulated PLGA-chitosan nanocarriers demonstrated potent antioxidant activity (>80 % DPPH scavenging at 0.75 mg/mL) and no significant cytotoxicity against PC12 cells at concentrations up to 80 μg/mL. In HCT116 cells, the chitosan coating enhanced cellular uptake and cytoplasmic distribution. Crucially, the nanocarriers promoted PC12 cells differentiation, resulting in a high proportion of neurite-bearing cells. These findings indicate that the designed chitosan-coated PLGA nanoparticles are a promising delivery system for promoting neuronal differentiation.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":"50 1","pages":"114549-114549"},"PeriodicalIF":0.0,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331533","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

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

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

Enhancing nano-thermite performance: Iron oxyfluoride (FeOF) as a novel oxidizer 增强纳米铝热剂性能：氧化氟化铁（FeOF）作为一种新型氧化剂

3区材料科学

Materials Today Communications Pub Date : 2025-11-17 DOI: 10.1016/j.mtcomm.2025.114313

Wenyu Li, Yajun Wang, Ruihua Liu, Qiang Gan, Zhengliang Deng

引用次数: 0

Microwave-assisted hydrothermal synthesis of RC@MoS2 composite derived from coal gasification slag for enhanced sodium-ion storage performance 微波辅助水热合成煤气化渣RC@MoS2复合材料提高钠离子储存性能

3区材料科学

Materials Today Communications Pub Date : 2025-11-15 DOI: 10.1016/j.mtcomm.2025.114312

Shichao Zhu, Hu Tian, Xinchu Fu, Jianbo Wu, Hongcun Bai, Yuhua Wu, Liangru Xiang, Hui Zhang, Xiaojiao Yang

引用次数: 0

Preparation and characterization of double-layer hydrogel fluid valves with near infrared response 近红外响应双层水凝胶流体阀的制备与表征

3区材料科学

Materials Today Communications Pub Date : 2025-11-13 DOI: 10.1016/j.mtcomm.2025.114299

Lu Wang, Yang Wang, Yanhao Liu, Junwei Fan, Lili Fan, Shubin Li

引用次数: 0

Sprayed dual-layer epoxy coatings with enhanced superhydrophobic stability, corrosion resistance, and mechanical robustness for industrial metal protection 喷涂双层环氧涂料，具有增强的超疏水稳定性，耐腐蚀性和机械坚固性，用于工业金属保护

3区材料科学

Materials Today Communications Pub Date : 2025-11-01 DOI: 10.1016/j.mtcomm.2025.114227

Yifan Wang, Changqing Zhang, Kun Chen, Xiaofang Wang, Xin Wang, Chu Wu, Guangliang Gao, Xiangwei Kong

引用次数: 1

Utilizing zirconium-based MOF@BiVO₄-TiO₂ composite to synergistically promote the degradation of indoor formaldehyde under visible light irradiation 利用锆基MOF@BiVO₄-TiO₂复合材料协同促进可见光照射下室内甲醛的降解

3区材料科学

Materials Today Communications Pub Date : 2025-11-01 DOI: 10.1016/j.mtcomm.2025.114231

Siyi Wang, Mengyao Hua, Meng Cheng, Lei Xu, Yafen Zhou

引用次数: 0