Polymer nanofibers hold promise in a wide range of applications owing to their diverse properties, flexibility, and cost effectiveness. In this study, we introduce a polymer nanofiber drawing process in a scanning electron microscope and focused ion beam (SEM/FIB) instrument with in situ observation. We employed a nanometer-sharp tungsten needle and prepolymer microcapsules to enable nanofiber drawing in a vacuum environment. This method produces individual polymer nanofibers with diameters as small as ∼500 nm and lengths extending to millimeters, yielding nanofibers with an aspect ratio of 2000:1. The attachment to the tungsten manipulator ensures accurate transfer of the polymer nanofiber to diverse substrate types as well as fabrication of assembled structures. Our findings provide valuable insights into ultrafine polymer fiber drawing, paving the way for high-precision manipulation and assembly of polymer nanofibers.

中文翻译：

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单个聚合物纳米纤维的精确制造和操作


聚合物纳米纤维因其多样化的性能、灵活性和成本效益而在广泛的应用中具有广阔的前景。在这项研究中，我们介绍了在扫描电子显微镜和聚焦离子束（SEM/FIB）仪器中进行原位观察的聚合物纳米纤维拉丝过程。我们采用纳米锋利的钨针和预聚物微胶囊来实现在真空环境下拉制纳米纤维。该方法生产的单个聚合物纳米纤维的直径小至~500 nm，长度延伸至毫米，产生长径比为2000:1的纳米纤维。钨操纵器的附件确保聚合物纳米纤维准确转移到不同的基材类型以及组装结构的制造。我们的研究结果为超细聚合物纤维拉丝提供了宝贵的见解，为聚合物纳米纤维的高精度操纵和组装铺平了道路。