|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Tribological properties of copper matrix composites reinforced with homogeneously dispersed graphene nanosheets显示文摘Graphene reinforced copper matrix composites(Gr/Cu) were fabricated by electrostatic self-assembly and powder metallurgy. The morphology and structure of graphene oxide, graphene oxide-Cu powders and Gr/Cu composites were characterized by scanning electronic microscopy, transmission electronic microscopy, X-ray diffraction and Raman spectroscopy, respectively. The effects of graphene contents,applied loads and sliding speeds on the tribological behavior of the composites were investigated. The results indicate that the coefficient of friction of the composites decreases first and then increases with increasing the graphene content. The lowest friction coefficient is achieved in 0.3 wt% Gr/Cu composite,which decreases by 65% compared to that of pure copper. The coefficient of friction of the composite does not have significant change with increasing the applied load, however, it increases with increasing the sliding speed. The tribological mechanisms of the composite under different conditions were also investigated. | Xin Gao Hongyan Yue Erjun Guo Shaolin Zhang Longhui Yao Xuanyu Lin Bao Wang Enhao Guan | 2018 | Journal of Materials Science & Technology2018，34，10： | 9 |
| 2 | Rapid Detection of Sildenafil Drugs in Liquid Nutraceuticals Based on Surface-Enhanced Raman Spectroscopy Technology显示文摘在这研究,提高表面的拉曼光谱学(重量的单位) 技术被用来很快检测非法增加的 sildenafil 药。由密度的详细归属分析功能的理论(DFT ) 被用来指导特定的实验。拉曼信号从银胶体(Ag 关口) 被获得底层,和他们面对矿物质盐增加了,钾碘化物(KI ) 。这些方法在象 1 獳? 敷椠汬獵牴瑡 ? 桴 ? 潰整瑮慩?景琠敨渠睥栠略楲瑳捩猠档浥 e 一样低的水的答案检测了 | Hang Zhao Wuliji Hasi Lin Bao Siqingaowa Han Xuanyu Sha Jia Sun Xiutao Lou Dianyang Lin Zhiwei Lv | 2017 | Chinese Journal of Chemistry2017，35，10： | 3 |
| 3 | Mn-based cathode materials for rechargeable batteries显示文摘The rapid expansion of renewable energies asks for great progress of energy-storage technologies for sustainable energy supplies,which raises the compelling demand of high-performance rechargeable batteries.To satisfy the huge demand from the coming energy-storage market,the resource and cost-effectiveness of rechargeable batteries become more and more important.Manganese(Mn)as a key transition element with advantages including high abundance,low cost,and low toxicity derives various kinds(spinels,layered oxides,polyanions,Prussian blue analogs,etc.)of high-performance Mn-based electrode materials,especially cathodes,for rechargeable batteries ranging from Li-ion batteries,Na-ion batteries,aqueous batteries,to multivalent metal-ion batteries.It is anticipated that Mn-based materials with Mn as the major transition-metal element will constitute a flourishing family of Mn-based rechargeable batteries(Mn RBs)for large-scale and differentiated energy-storage applications.On the other hand,several critical issues including Jahn-Teller effect,Mn dissolution,and O release greatly hinder the pace of Mn RBs,which require extensive material optimizations and battery/system improvements.This review aims to provide an investigation about Mn-based materials and batteries for the coming energy-storage demands,with compelling issues and challenges that must be overcome. | Xu Zhang Shiqi Liu Boya Wang Guoqing Wang Haozhe Du Xuanyu Wang Haidong Zhang Shu Zhao Lin Wang Haijun Yu | 2024 | Science China Chemistry2024，67，1： | 0 |
| 4 | Regulating macrophage-MSC interaction to optimize BMP-2-induced osteogenesis in the local microenvironment显示文摘Bone morphogenetic protein(BMP-2)has been approved by the FDA to promote bone regeneration,but uncertain osteogenic effect and dose-dependent side effects may occur.Osteoimmunomodulation plays an important role in growth factor-based osteogenesis.Here,we explored how proinflammatory signals affect the dose-dependent osteogenic potential of BMP-2.We observed that the expression level of local IL-1βdid not increase with the dose of BMP-2 in the mouse osteogenesis model.A low dose of BMP-2 could not promote new bone formation,but trigger the release of IL-1βfrom M1 macrophages.As the dose of BMP-2 increased,the IL-1βexpression and M1 infiltration in local microenvironment were inhibited by IL-1Ra from MSCs under osteogenic differentiation induced by BMP-2,and new bone tissues formed,even excessively.Anti-inflammatory drugs(Dexamethasone,Dex)promoted osteogenesis via inhibiting M1 polarization and enhancing BMP-2-induced MSC osteo-differentiation.Thus,we suggest that the osteogenic effect of BMP-2 involves macrophage-MSC interaction that is dependent on BMP-2 dose and based on IL-1R1 ligands,including IL-1βand IL-1Ra.The dose of BMP-2 could be reduced by introducing immunoregulatory strategies. | Fei Jiang Xuanyu Qi Xiaolin Wu Sihan Lin Junfeng Shi Wenjie Zhang Xinquan Jiang | 2023 | Bioactive Materials2023，，7： | 0 |
| 5 | Directional emissions from perovskite nanocrystals thin film enabled by metasurface integration through one step spin-coating process显示文摘Advances in thin film light-emitting devices have fueled the rapid growth of a new class of solid-state lighting devices,featuring low fabrication cost,high quantum efficiency,broadband spectrum coverage,etc.In contrast to the conventional inorganic semiconductors that rely on lattice matched high crystalline quality substrate,solution processable thin films eliminate the dependence on the substrate,which is highly desired for the ease and versatility of integrations with foreign medium.By taking this advantage,this work developed an ultracompact solution to control the directionality of thin film emitters using integrated dielectric metasurface through one step spin-coating process.As a proof of concept,directional emissions from perovskite nanocrystal thin film,including collimated light emissions and two-dimensional beam steering,are experimentally demonstrated.Notably,our approach,where light emitters were integrated on the back side of substrate after the fabrication of metasurface,judiciously avoids any potential degradation of material optical quality caused by the multi-step nanofabrication.Therefore,it can serve as a generalized scheme to engage the advantageous properties of dielectric metasurface,including the compactness,high efficiency,beam controllability with the emerging thin film light-emitting diodes(LEDs),which is applicable to a wide range of solution processable materials,including organic light-emitting diodes,quantum-dot light emitting diodes,polymer LEDs,and perovskite LEDs,opening up new pathways to develop low-cost and ultra-compact solid state light sources with versatile beams characteristics. | Kexue Li Xuanyu Zhang Peinan Ni Juncheng Liu Fengyuan Lin Xu Man Wenfeng Cai Jianxun Liu Yanjun Liu Rui Chen Zhipeng Wei | 2023 | Nano Research2023，16，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员