Science China Materials最新文献_第9页

Sulfonate-functionalization in Zn-iodine batteries as one stone kills two birds: iodine limiter and uniform Zn plating guidance layer 硒碘电池中的磺酸盐功能化一石二鸟：碘限制器和均匀镀锌引导层

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-15 DOI: 10.1007/s40843-024-2971-y

Wentao Qu, Chenyu Wen, Baohui Chen, Yong Cai, Ming Zhang

{"title":"Sulfonate-functionalization in Zn-iodine batteries as one stone kills two birds: iodine limiter and uniform Zn plating guidance layer","authors":"Wentao Qu, Chenyu Wen, Baohui Chen, Yong Cai, Ming Zhang","doi":"10.1007/s40843-024-2971-y","DOIUrl":"https://doi.org/10.1007/s40843-024-2971-y","url":null,"abstract":"Aqueous Zn-iodine (Zn-I2) batteries have attracted extensive research interest as an emerging redox conversion energy storage system due to the low cost and high safety. However, the shuttling effects of polyiodides arising from incomplete redox conversion and inhomogeneous Zn plating on the Zn anode surface always hinder the commercial application of Zn-I2 batteries. In this work, a two-birds-with-one-stone strategy is reported for long-life Zn-I2 batteries. Based on the strategy, the sulfonate-functionalized carbon fiber not only acts as the excellent iodine limiter to inhibit iodine species shuttling, but also as the uniform Zn plating guidance layer on the Zn anode surface to prevent the inhomogeneous deposition of Zn2+. Consequently, a superior cycling stability (a capacity of 124 mAh g−1 after 10,000 cycles at 5 A g−1) is achieved. Theoretical calculations illustrate that sulfonate groups successfully induce charge redistribution on the carbon substrate, thereby strengthening the electronic interactions of the iodine species with the carbon substrate. The charge-enriched sulfonate groups can guide the uniform deposition of Zn2+ through a strong Coulombic effect with Zn2+. This work gives a new perspective on the integrated design of cathodes and anodes for rechargeable batteries.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141718615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A universal strategy for the refined frameworks and improved performance of distinct commercial polyacrylonitriles in sulfur cathodes 改进硫阴极中不同商用聚丙烯腈框架和性能的通用策略

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-15 DOI: 10.1007/s40843-024-2988-6

Yikun Yi, Feng Hai, Wenting Chen, Xin Gao, Jingyu Guo, Weicheng Xue, Mingtao Li

{"title":"A universal strategy for the refined frameworks and improved performance of distinct commercial polyacrylonitriles in sulfur cathodes","authors":"Yikun Yi, Feng Hai, Wenting Chen, Xin Gao, Jingyu Guo, Weicheng Xue, Mingtao Li","doi":"10.1007/s40843-024-2988-6","DOIUrl":"https://doi.org/10.1007/s40843-024-2988-6","url":null,"abstract":"Sulfurized polyacrylonitrile (SPAN) with the exceptional stability, safety, low cost, and high capacity have been positioned as a highly promising cathode material for next-generation lithium-ion batteries. However, in the market, polyacrylonitrile (PAN) sourced from different suppliers and available at varying prices exhibits significant variations in physical and chemical properties, resulting in diverse behaviors in Li-SPAN batteries. By studying the mechanism, we found that the PAN copolymerization structure leads to the stacking of chain segments which obstructs the embedding of sulfur and lithium ions. Here, we propose a universal strategy for the refined frameworks by an exogenous additive to modify various PAN raw materials, and the battery capacity and cycling performance are obviously improved. As a result, the copolymerized SPAN with a poor original capacity is nearly doubled to over 500 mAh g−1, almost comparable to high-quality yet expensively imported products; for the sample with a high initial capacity but fading in ether-based electrolytes, it can be modified to maintain stability over 400 cycles. This strategy offers an alternative approach for SPAN modification that is characterized by its simplicity and low cost, thereby facilitating the large-scale development of Li-SPAN batteries.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141718616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Machine learning-assisted smart epitaxy of III–V semiconductors 机器学习辅助的 III-V 族半导体智能外延

IF 6.8 2区材料科学

Science China Materials Pub Date : 2024-07-15 DOI: 10.1007/s40843-024-3006-x

Yue Hao

引用次数: 0

A mechanically stable self-pumping organohydrogel dressing with aligned microchannels for accelerated diabetic wound healing 带有排列整齐微通道的机械稳定自泵送有机水凝胶敷料，可加速糖尿病伤口愈合

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-024-2980-1

Wuyi Xiao, Xizi Wan, Yikai Zhang, Jinze Lan, Lianxin Shi, Shutao Wang

{"title":"A mechanically stable self-pumping organohydrogel dressing with aligned microchannels for accelerated diabetic wound healing","authors":"Wuyi Xiao, Xizi Wan, Yikai Zhang, Jinze Lan, Lianxin Shi, Shutao Wang","doi":"10.1007/s40843-024-2980-1","DOIUrl":"https://doi.org/10.1007/s40843-024-2980-1","url":null,"abstract":"Self-pumping dressings (SPDs) have been developed as a new type of effective material for the drainage of excessive wound exudates based on the structure of asymmetric wettability. However, current SPDs are easy to lose their asymmetric wettability due to the weak interfacial mechanical stability between the hydrophobic and hydrophilic layers. Herein, we report an integrated self-pumping organohydrogel dressing with aligned microchannels (SPD-AM), prepared by an ice-templating-assisted wetting-enabled-transfer (WET) polymerization strategy, that can accelerate the healing process of diabetic wounds. The WET polymerization strategy enables strong interfacial mechanical stability between the hydrophobic organogel and hydrophilic hydrogel layers. The aligned microchannels greatly improve the draining capability of SPDs. Taking a diabetic rat model as an example, the SPD-AM can significantly reduce the bacterial colonization with low inflammatory responses, enhance dermal remodeling by about 47.31%, and shorten wound closure time by about 1/5 compared with other dressings, ultimately accelerating diabetic wound healing. This study is valuable for developing next-generation SPDs with stable mechanical performance for clinical applications.","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A strong and tough hydroxyapatite-based fiber with enamel-inspired hierarchical structure 具有釉质启发分层结构的强韧羟基磷灰石纤维

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-024-2902-y

Baosen Ding, Shaojia Liu, Junfeng Lu, Yiran Guo, Tian Zheng, Hewei Zhao, Lin Guo

引用次数: 0

Synergistic photothermal effect and nanoenzyme for efficient antibacterial activity 光热效应与纳米酶协同作用，实现高效抗菌

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-023-2816-6

Rong Li, Shasha Chen, Xingang Zhang, Fan Zeng, Xianyin Song, Jia Yin, Changzhong Jiang

{"title":"Synergistic photothermal effect and nanoenzyme for efficient antibacterial activity","authors":"Rong Li, Shasha Chen, Xingang Zhang, Fan Zeng, Xianyin Song, Jia Yin, Changzhong Jiang","doi":"10.1007/s40843-023-2816-6","DOIUrl":"https://doi.org/10.1007/s40843-023-2816-6","url":null,"abstract":"The continuous emergence of drug-resistant bacteria has become a serious threat to human and animal health. Developing new non-antibiotic therapeutic drugs with high efficiency and low resistance is a promising strategy for combating drug-resistant bacteria. Here, a novel composite structure based on a hollow metal-organic framework (MOF) wrapped Au nanorod and loaded Pt nanoparticles (Au NR@H-ZIF-8@Pt) is designed for combating drug-resistant bacteria. The Au NR@H-ZIF-8@Pt composite structures serve a twofold purpose: (1) showing superior photothermal conversion efficiency under near-infrared light irradiation, thus achieving an antibacterial effect based on photothermal effect, and (2) exhibiting high-efficiency peroxidase-like activity, and effectively killing bacteria by reactive oxygen species (ROS) generated in situ. By combining photothermal and catalytic effects for in vitro antibacterial experiments, Au NR@H-ZIF-8@Pt exhibits efficient, rapid, broad-spectrum antibacterial activity (99.7% for Pseudomonas aeruginosa and 98.3% for Staphylococcus aureus). In addition, in vivo experiments further demonstrate the advantages of the material in promoting bacterial infection wound healing. This study not only facilitates the design of novel biological nanomaterials, but also provides new ideas for combating drug-resistant bacteria.","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 synthesis of iron oxide nanoparticles in confined space 在密闭空间合成氧化铁纳米粒子

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-024-2875-3

Yifan Zhao, Linyuan Wu, Yan Li, Yu Mao, Ning Gu

引用次数: 0

Printable and biocompatible hydrogels for residual-free and high-throughput printing patient-derived organoid biochips 用于无残留和高通量打印源自患者的类器官生物芯片的可打印和生物相容性水凝胶

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-024-2933-8

Daixi Xie, Bingda Chen, Yonggan Xue, Zhiyuan Sun, Bobin Ning, Zeying Zhang, Jimei Chi, Meng Su, Yanlin Song

{"title":"Printable and biocompatible hydrogels for residual-free and high-throughput printing patient-derived organoid biochips","authors":"Daixi Xie, Bingda Chen, Yonggan Xue, Zhiyuan Sun, Bobin Ning, Zeying Zhang, Jimei Chi, Meng Su, Yanlin Song","doi":"10.1007/s40843-024-2933-8","DOIUrl":"https://doi.org/10.1007/s40843-024-2933-8","url":null,"abstract":"Organoid biochips can replicate the micro-environment and functional traits of human organs in vitro, reflecting the physiological and pathological features of the human body. It provides a new platform for disease modeling and drug screening. However, the manual process of organoid cultivation and biochip construction using decellularized extracellular matrix-based gel is typically complex, expensive, and time-consuming (at least one month), which significantly hinders practical application. Here, we introduce a micro-needle-based pneumatic printing strategy for residual-free and high-throughput construction of patient-derived organoid biochips. By developing printable and biomimetic hydrogels, biopsy samples of cancer tissues can be effectively processed into discrete cells. Patient-derived colorectal cancer (CRC) cells in carboxymethylcellulose (CMC) and sodium alginate modified by adhesion sites exhibit high viability at 92%. Through a microneedle, the cell-ink utilization exceeds 90%. Especially, the organoid biochips can effectively be fabricated, and single cells in biochips can proliferate and differentiate into organoids with typical morphology. Finally, the patient-derived CRC organoids are used as the biochips for drug testing, which give the personalized drug screening information in a week. Overall, through the microprinting strategy and biomimetic hydrogels, the utilization rate of cells and the construction efficiency of organoid chips can be improved. This work provides a new approach for high-throughput printing patient-derived organoid biochips in precision medicine.\u0000","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":null,"pages":null},"PeriodicalIF":8.1,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Bioinspired and bioengineered nucleic acid drug carriers 生物启发和生物工程核酸药物载体

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-024-2858-8

Jiamin Zuo, Zhiguo Lu, Jing Guo, Ruichen Zhao, Tianlu Zhang, Zhaoxia Wang, Yun Yuan, Jianwen Deng, Junliang Yuan, Xin Zhang

引用次数: 0

Biomimetic cell encapsulations by microfluidics 利用微流体技术封装仿生细胞

IF 8.1 2区材料科学

Science China Materials Pub Date : 2024-07-12 DOI: 10.1007/s40843-024-2903-0

Jinglin Wang, Danqing Huang, Yile Fang, Haozhen Ren, Yuanjin Zhao

引用次数: 0