Xie Hui, Haliyo Dogan Sinan, Régnier Stéphane
Institut des Systèmes Intelligents et de Robotique, Université Pierre et Marie Curie/CNRS UMR7222, Paris, France.
Nanotechnology. 2009 May 27;20(21):215301. doi: 10.1088/0957-4484/20/21/215301. Epub 2009 May 5.
A conventional atomic force microscope (AFM) has been successfully applied to manipulating nanoparticles (zero-dimensional), nanowires (one-dimensional) or nanotubes (one- or two-dimensional) by widely used pushing or pulling operations on a single surface. However, pick-and-place nanomanipulation in air is still a challenge. In this research, a modified AFM, called a three-dimensional (3D) manipulation force microscope (3DMFM), was developed to realize 3D nanomanipulation in air. This system consists of two individually actuated cantilevers with protruding tips that are facing each other, constructing a nanotweezer for the pick-and-place nanomanipulation. Before manipulation, one of the cantilevers is employed to position nano-objects and locate the tip of the other cantilever by image scanning. During the manipulation, these two cantilevers work collaboratively as a nanotweezer to grasp, transport and place the nano-objects with real-time force sensing. The manipulation capabilities of the nanotweezer were demonstrated by grabbing and manipulating silicon nanowires to build 3D nanowire crosses. 3D nanomanipulation and nanoassembly performed in air could become feasible through this newly developed 3DMFM.
传统原子力显微镜（AFM）已通过在单个表面上广泛使用的推或拉操作成功应用于操纵纳米颗粒（零维）、纳米线（一维）或纳米管（一维或二维）。然而，在空气中进行拾取和放置纳米操作仍然是一个挑战。在本研究中，开发了一种改进的AFM，称为三维（3D）操纵力显微镜（3DMFM），以实现在空气中的3D纳米操作。该系统由两个单独驱动的悬臂组成，悬臂的突出尖端相互面对，构成一个用于拾取和放置纳米操作的纳米镊子。在操作之前，其中一个悬臂用于定位纳米物体并通过图像扫描定位另一个悬臂的尖端。在操作过程中，这两个悬臂协同作为一个纳米镊子，通过实时力传感来抓取、运输和放置纳米物体。通过抓取和操纵硅纳米线以构建3D纳米线十字，展示了纳米镊子的操纵能力。通过这种新开发的3DMFM，在空气中进行3D纳米操作和纳米组装可能变得可行。
