Table 3.

Nanoparticle line packing density and base size of the drop affect the printability.

χ	CIR10	CIR20	CIR50
0.01			spread
0.05		spread	Print
0.10	spread	print	Print
0.15	print	print	Print
0.20	print	print	Print
…	…	…	…
1	print	print	Print

Contact line packing density can be determined by volume fraction of crude in the crude-hexadecane mixture, χ. Details are presented in SI §S2.2–S2.3. The experiments are performed using three different base size: 10, 20 and 50 μm. The base feature is circle. The printability is characterized as: upon the release of the stamp, “Print” indicates a printed drop can maintain its base shape and size, and “Spread” suggests otherwise.