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| 主题： | 全部 生物质基 柔性智能材料 绿色环保材料 其它 |
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Gold (Au) crystalline microwires with an unprecedented diameter of >500 nm and an aspect ratio >400 were synthesized using L-tyrosine as a reducing and capping agent. The Au microwires possessed high conductivity and electrocatalytic activities towards glucose and Hg(II). Their large diameters and aspect ratio...... -
Incorporation of nanoscale colloidal objects into three-dimensional (3D) hydrogel networks can not only reinforce the hydrogels as “colloidal cross-linkers”, but also add many extra functionalities for diverse applications. For the first time, deformable droplets of liquid metal (LM) in combination with sonication w...... -
Marine molluscs have inspired to construct robust composites with hierarchical microstructures, and also to design artificial muscles with rapid and controllable deformation. Abalone nacre has the unique “brick and mortar” structure, whose two-dimensional (2D) “mortar” can serve both as the strong adhesive between a...... -
Artificial asymmetric ionic membranes have attracted great interests in harvesting electricity from ubiquitous water activities, while mostly based on delicately-designed nanopores/nanochannels, either to harness saline water in mimic of cytomembranes or to harness moisture with carbon nanomaterials. Herein, fully b...... -
Porous metallic architectures with well-defined networks possess multiple reactivity center and large specific surface area, offer improved catalytic activity, adsorption capacity, and sensing abilities than bulk materials, thus be an increasingly popular materials in various fields. However, it is challenging to sy...... -
Artificial electric skin, which is capable of strongly adhering to different parts of human bodies and precisely detect different types of human motions, shows great promise for biomedical prosthetics, human/machine interfaces, wearable devices and soft robotics. In this study, biocompatible ionic gels with shape-ad...... -
聚烯烃材料引入长支化结构，能够提升材料熔体强度和异相成核作用，使聚合物具备更加优异的发泡性能，从而扩宽材料的应用领域. 本文利用甲基丙烯酸十八烷基酯（SMA）熔融改性聚丁烯（PB），发现其链段缠结程度提升，发泡行为改善. 通过红外谱图的化学结构分析以及材料的力学性能分析，发现随着SMA添加量的增加，材料拉伸强度降低，冲击强度呈现先升高后降低的趋势. 差示扫描量热（DSC）的分析结果表明改性PB的结晶度下降. 采用间歇釜式法制备PB发泡珠粒，利用扫描电子显微镜（SEM）研究发泡珠粒泡孔结构，结果表明：SMA改性后，发泡珠粒平均泡孔尺寸、孔径分布、泡孔密度都得到改善，发泡温度窗口加宽且发泡稳定性提升. 当添加SMA达到3份时，珠粒...... -
Protein nanostructures in living organisms have attracted intense interests in biology and material science owing to their intriguing abilities to harness ion transportation for matter/signal transduction and bioelectricity generation. Silk nanofibrils, serving as the fundamental building blocks for silk, not only h...... -
Liquid metal nanodroplets not only share the similar metallic properties and nanoscale effect with solid metal nanoparticles, but also possess the additional uniqueness in nonvolatile fluidity and ambient sintering ability into continuous conductors. In most cases, liquid metal nanodroplets ......
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