Figure 2
From: Non-stick syringe needles: Beneficial effects of thin film metallic glass coating

Load-displacement curves obtained from bare needle and needles with TFMG, Ti and TiN coatings upon insertion and retraction into (a) PU rubber (b) pork muscle. Inset in (a) is 2x enlargement of the curves, revealing serrated (jerky) curves obtained from three bare needles under nearly maximal loads.