Nanoscientists would love to have an instrument which would allow them to see what they were doing while they picked individual molecules up and moved them around. At the moment researchers can manipulate individual molecules with scanning probe microscopy techniques, and high resolution transmission electron microscopy allows structures to be visualised with resolutions better than an individual atom. A major grant has recently been awarded to a team of UK scientists to combine these technologies, developing instrumentation that combines nanoscale actuators with high resolution electron microscopy. The result should be a new tool for manipulating single atoms and molecules while they are being imaged, with atomic resolution, in three dimensions.
The ��2.3 million ($4.4 million) grant comes from the UK government’s Basic Technology Program. It is led by Beverley Inkson and Guenter Moebus here at the University of Sheffield, and also involves the nanoscience group at the University of Nottingham.
The image is a simulated interaction between an electron beam and a surface, showing the size of the electron beam to scale with the atoms making up the surface. The immediate uses that are foreseen for this technology are mostly as a nanoscale research tool, with applications to research in nanoscale electronic, magnetic and electromechanical devices, the manipulation of fullerenes and nanoparticles, nanoscale friction and wear, biomaterials, and systems for carrying out quantum information processing.
More details can be found in this one-page PDF.