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. 2023 Oct 31;16(21):6984. doi: 10.3390/ma16216984

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Characterization of printing accuracy of square and semi-circular microchannels with open channel design: (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 semi-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 semi-circular microchannels.