If one nanotube sits inside another — slightly larger — one, the inner tube will ‘float’ within the outer, responding to electrostatic, van der Waals and capillary forces. Passing power through the nanotubes allows the inner tube to be pushed in and out of the outer tube. This telescoping action can either connect or disconnect the inner tube to an electrode, creating the ‘zero’ or ‘one’ states required to store information using binary code. When the power source is switched off, van der Waals force — which governs attraction between molecules — keeps the Inner tube in contact with the electrode. This makes the memory storage non-volatile, like Flash memory.
Researchers from across the scientific disciplines will be working on the ‘nanodevices for data storage’ project, which is funded by the Engineering and Physical Sciences Research Council. Colleagues from the Schools of Chemistry, Physics and Astronomy, Pharmacy and the Nottingham Nanotechnology and Nanoscience Centre will examine the methods and materials required to develop this new technology, as well as exploring other potential applications for the telescoping properties of carbon nanotubes. These include drug delivery to individual cells and nanothermometers which could differentiate between healthy and cancerous cells.
Dr Elena Bichoutskaia in the School of Chemistry at the University is leading the study.
Researach by Elena Bichoutskaia group.
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