The sample was fixed on a metal stub, sprayed with gold for 60 seconds, and images were taken at an accelerating voltage of 5kV. ImageJ measurement software was used to evaluate the average fiber diameter and porosity.
Fix the sample on a metal stub, spray gold for 60 seconds, and take images under a 5kV accelerating voltage. Evaluate the average fiber diameter and porosity using ImageJ measurement software.
The sample was fixed on a metal stub, sprayed with gold for 60s, and the image was taken at an accelerated voltage of 5kV. The average fiber diameter and porosity were evaluated by ImageJ measurement software.