Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Fabrication of circular straight microchannel with different sizes at low extrusion amounts. (A) Cross-sectional images of the nozzle orifice and the microchannels fabricated at different extrusion amounts. The red scale bar is 100 µm; (B) Calculated channel diameters at different extrusion amounts. The dotted line indicates the diameter of the nozzle orifice. The error bars represent the standard deviations of diameter differences from ten microchannels.
