Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A nanoknife is a carbon nanotube-based prototype compression cutting tool intended for sectioning of biological cells. Working principle is similar to that of a 'cheese slicer', a nanometer-thin individual carbon nanotube strung between two tungsten needles would allow sectioning of very thin slices of biological matter for imaging under an electron microscope. Tests are currently being performed by scientists at Virginia Tech, CU-Boulder and other universities. A successful development of this new tool will allow scientists and biologists to make 3D images of cells and tissues for electron tomography, which typically requires samples less than ~300 nanometers in thickness.

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