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清华大学王训团队制备出高柔性、可拉伸的纳米线超晶格纤维 随着越来越多的无机超细纳米线被合成，它们在光学，电学和磁学中的应用引起了人们广泛的兴趣。常规的无机纳米线纤维通常不可拉伸的并且几乎没有弹性，这会限制它的实际应用。超细无机纳米线在尺寸结构上与高分子链类似，因此湿纺和静电纺丝已被应用于制造纳米线纤维。迄今为止，通过湿纺已经获得了Bi2S3，金和羟基磷灰石纳米线纤维，并且通过静电纺丝法也已经获...... -
As a cucumber plant grows, it sprouts tightly coiled tendrils that seek out supports in order ...... -
In many arid coastal regions, a great quantity of valuable fresh water is lost into the atmosphere every day, as it evaporates from the surface of the ocean. This situation prompted scientists to create a new hydrogel that's highly effe...... -
The MOST window film keeps rooms from heating up during the day, but warms them at night(Credit: Yen Strandqvist/Chalmers University of Technology )... -
Photo of the textile capacitor.3D rendering of the textile capacitor. [Image credit: Siyu Qiang.]Fiber-based textiles are the ideal starting point for wearable electronics because they are softer, more flexible, breathable, and biocompatible than ...... -
Fig. 1. Schematic of the aligned cellulose nanofiber ionic conductor: (left) cellulose fibers are naturally aligned in the tree growth direction; (middle) cellulose has a hierarchical alignment, with the fibers consisting of aligned molecular chains;...... -
清华等提出基于液态金属制备宽温区导体-绝缘体转变材料的通用策略来源：高分子科学前沿 我们知道，铜或银等金属导电性很高，而橡胶或玻璃等绝缘体则不能导电。出现这种导电性差异的本质原因在于物质内部是否拥有可自由移动的带电物质微粒，这取决于其内部的微观结构。如能有效地调控物质的微观结构，就可以实现对物质在导电与绝...... -
‘Biomimetic engineering of spider silk fibres with graphene for electric devices with humidity and motion sensitivity’ has been selected to be a&...... -
While shape-memory materials do have some interesting potential applications, many of them require the application of heat in order to change shape – and that could cause problems, in temperature-sensitive environments such as the human bod...... -
农林、渔业废弃物可作原料 青岛能源所制备生物基纳米纤维气凝胶发电器件来源： 高分子科学前沿 |随着能源危机和环境问题的日益加剧，绿色、可再生能源器件的研究和应用得到了全球的广泛关注。其中，太阳能、热能、机械能、风能、生物电化学能源等陆续被用来发电，在自供电系统和可穿戴领域有广泛的应用前景。然而，上述能源形式在应用上仍然有较多限制，例如太阳能发电装置需要持续光照；摩擦或者压力发电需要持续的相对运动，对材料与装置的机械性能要...... -
对于从天然海水中提取铀，迫切需要具有高吸附容量、快速平衡率、高选择性和长使用寿命的吸附剂。海南大学Ning Wang课题组通过将超铀酰结合蛋白（SUP）的基因与蛛丝蛋白基因融合来设计基于嵌合蛛丝蛋白的超铀酰结合蛋白（SSUP）纤维。SUP赋予SSUP纤维对铀的高亲和力和选择性，而蛛丝蛋白赋予SSUP纤维高机械强度和高重复使用性。湿的SSUP纤维以富含水的水凝胶状结构存在，为铀酰离子的进入提供了丰富的亲水分...... -
在酶催化和多相催化之间架起一座桥梁将为制造业提供新的耦合工业流程。然而，酶催化和多相催化反应条件的不同将会导致催化剂失活。近日，清华大学戈钧、肖海，复旦大学Richard N. Zare等多团队合作，克服了这一挑战，发展了一种合成该杂化催化剂的特殊方法。作者利用蛋白质-高分子纳米偶联物作为限域纳米反应器，原位合成了酶-Pd纳米复合材料。实验发现，合成的酶-0.8 nm Pd纳米粒子复合材料催化(S)-1-苯基乙胺外消旋化反应的活性增强。在脂肪酶最适温度55...... -
Biohybrid actuators for robotics: A review of devices actuated by living cellsActuation is essential for artificial machines to interact with their surrounding environment and to accomplish the functions for which they are de...... -
应力发白是聚合物在受应力作用时，由于受应力区的局部折射率发生变化而产生区域发白的现象。应力发白可以是材料中微裂纹、微孔和微纤丝形成的结果。在聚合物中的局部受应力处形成微孔和微纤丝往往是一种典型的不良现象，也是造成材料失效的原因之一。常见的应力产生的微裂纹、微孔和微纤丝结构是没有规则的，所以我们看到的相当于漫反射，所以是白色的。... -
Besides slinging webs and kissing while hanging upside down, Spider-Man's most famous ability is his "spidey-sense," allowing the hero to sense danger in advance and react with lightning speed. That's not purely fiction ei...... -
We've already heard about water-repellant materials that copy the structure of the lotus leaf. Now, however, scientists have created a flexible optical plastic that wards off liquids even better, and it was inspired by something ...... -
为了开发可穿戴语音识别电子设备，柔性、可连接到皮肤上的振动传感器一直是科研人员研究的热点。然而，开发具有平坦的频率响应，高灵敏度的振动传感器来准确识别人类的声音是目前面临的主要挑战。有鉴于此，韩国浦项科技大学Kilwon Cho以及Yoonyoung Chung等人提出了一个超薄的，可以实现振动响应的电子皮肤，可以用来检测与声音压力直接相关的皮肤加速度。该装置由交联超薄聚合物薄膜和孔状膜片结构组成，对语音展现出优异的灵敏度。此外,这种超薄设备(< 5μ...... -
海绵动物Neofibularia nolitangere在被分解成无数块后，可以恢复原貌和原有的功能。有鉴于此，深圳大学孔湉湉团队、张晗教授团队和刘洲团队合作制备了一种仿生海绵动物的可自再生颗粒，这些颗粒来源于一种水凝胶并可以通过简单的水化作用再恢复成具有机械性能的水凝胶。这种粉体到水凝胶的转变可以重复多次，其再生能力和机械性能仍然能够很好的保持。这种优良的特性使该水凝胶具有很好的储存和方便成型的优点，对于......
