Figure 3.
Characterization of printing accuracy of directly printed square and circular microchannels: (a) cross-section of the square microchannels with a scale bar of 300 μm; (b) comparison between the chip design dimensions and the actual dimensions, with the measured data representing the dimensions of the channel cross-section in the X and Y directions (error bars indicate the arithmetic mean ± standard deviation of each data set); (c) relative error values of the printed square microchannels; (d) cross-section of the circular microchannel with a scale bar of 300 μm; (e) comparison between the chip design dimensions and the actual dimensions, with the measured data representing the dimensions of the channel cross-section in the X and Y directions (error bars indicate the arithmetic mean ± standard deviation of each data set); and (f) relative error values of the printed circular microchannels.