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Patterned hydrogel substrates for cell culture with electrohydrodynamic jet printing |
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| Authors: | Poellmann Michael J Barton Kira L Mishra Sandipan Johnson Amy J Wagoner |
| Institution: | 1. Department of Bioengineering, University of Illinois at Urbana‐Champaign, 1304?W. Springfield Ave., Urbana, IL 61801, USA;2. Department of Mechanical Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA;3. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th St., Troy, NY 12180, USA;4. Department of Mechanical Science and Engineering, University of Illinois at Urbana‐Champaign, 1206?W. Green St., Urbana, IL 61801, USA |
| Abstract: | Cells respond to and are directed by physiochemical cues in their microenvironment, including geometry and substrate stiffness. The development of substrates for cell culture with precisely controlled physiochemical characteristics has the potential to advance the understanding of cell biology considerably. In this communication, E-jet printing is introduced as a method for creating high-resolution protein patterns on substrates with controlled elasticity. It is the first application of E-jet printing on a soft surface. Protein spots as small as 5 μm in diameter on polyacrylamide are demonstrated. The patterned hydrogels are shown to support cell attachment and spreading. Polyacrylamide substrates patterned by E-jet printing may be applied to further the study of cellular mechanobiology. |
| Keywords: | electrohydrodynamic jet polyacrylamide hydrogels proteins surface modification |
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