An extended microcontact printing technique to chemically pattern hydrogels is reported. The procedure employs standard polydimethylsiloxane stamps and requires minor pre-processing of the hydrogels by freeze-drying. Micropatterned Matrigel™ and gelatin hydrogels induce NIH-3T3 cell alignment and elongation. Furthermore, human embryonic stem cells cultured on fibronectin-patterned hydrogels display beating foci earlier than those cultured on non-patterned substrates.
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Castaño et al. (2014) studied this question.
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