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. 2020 Sep 29;11(10):903. doi: 10.3390/mi11100903

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© 2020 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 (http://creativecommons.org/licenses/by/4.0/).

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Microcontact Printing using MSAs. (A) Fluorescent microscopic images of the microcontact-printed PLL-FITC on a glass substrate. Two different weights were compared: 0.7 g (PDMS stamp only) and 20.7 g (plus 20 g weight). Petal did not hold the weight of 20.7g and yielded no proper transfer of protein. (B) Width of printed patterns. The additional weight significantly thickened the width of Pillar and Bullet printing by almost double. Error bars: STDEV. Statistical analysis: Student’s t-test (*** p < 0.001). (A) Scale bar: 100 μm.