With GATTA‑AFM nanorulers, now adequate test samples are finally available. The GATTA-AFM nanorulers represent accurate and highly parallelized structures and are therefore perfectly suited to optimize and test the resolution of atomic force microscopes.
A holey carbon film is shadowed with gold and graphitized carbon particles are deposited on a 3.05mm grid. These particles viewed over the holes may be used for assessment of factors limiting the microscope performance.