Fig. 1: Preparation of five pillars with various diameters inside a single lamella.
From: Aggravated stress fluctuation and mechanical size effects of nanoscale lamellar bone pillars

a Sampling locations of five pillars around the Haversian canals; b specific parameters of pillars fabricated through the focused ion beam technique with diameters in a range from 640 to 4971 nm; and c illustration of the relative position between a flat diamond indenter and the 4971 nm diameter pillar.