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. Author manuscript; available in PMC: 2011 Mar 16.
Published in final edited form as: J Micromech Microeng. 2010 Nov 1;20(11):1–8. doi: 10.1088/0960-1317/20/11/115008

Figure 11.

Figure 11

The distances etched for microfluidic channels with SU8 sacrificial cores immersed in piranha mixtures with a ratio of (1:1) (H2O2:H2SO4) at 100 °C for 6 h that were replaced every hour (triangles and solid line) and the microfluidic channels for which the mixture was not replaced (circles and light gray dotted line) reflecting a decreased distance etched due to the effects of H2O2 self decomposition.