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Abstract 3D fabrication techniques are rapidly expanding in the field of scaffold development for cell culture and tissue engineering. Herein we report the realization of free-standing PEGDA hydrogel architectures by using two-photon lithography. The morphological and immunofluorescence characterization of neuro2A cells revealed a tridimensional colonization featuring multiple neuritic extensions per cell as well as the expression of β -tubulin neuronal marker and actin microfilaments. The results open new perspectives in the continuous quest for structured biomaterials able to provide a favorable environment to cells and at the same time not interfering with imaging protocols necessary for a clear scenario of the cell seeding.
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Accardo et al. (2018) studied this question.
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