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Bio‐Origami Hydrogel Scaffolds Composed of Photocrosslinked PEG Bilayers
Abstract
We describe the self‐folding of photopatterned poly (ethylene glycol) (PEG)‐based hydrogel bilayers into curved and anatomically relevant micrometer‐scale geometries. The PEG bilayers consist of two different molecular weights (MWs) and are photocrosslinked en masse using conventional photolithography. Self‐folding is driven by differential swelling of the two PEG bilayers in aqueous solutions. We characterize the self‐folding of PEG bilayers of varying composition and develop a finite element model which predicts radii of curvature that are in good agreement with empirical results. Since we envision the utility of bio‐origami in tissue engineering, we photoencapsulate insulin secreting β‐TC‐6 cells within PEG bilayers and subsequently self‐fold them into cylindrical hydrogels of different radii. Calcein AM staining and ELISA measurements are used to monitor cell proliferation and insulin production respectively, and the results indicate cell viability and robust insulin production for over eight weeks in culture.
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Cites
Hydrogels for tissue engineering: scaffold design variables and applications
Drury, J. L., & Mooney, D. J. (2003) · Biomaterials · doi:10.1016/s0142-9612(03)00340-5 · Cited by 5,136
Photopolymerizable hydrogels for tissue engineering applications
Nguyen, K. T., & West, J. L. (2002) · Biomaterials · doi:10.1016/s0142-9612(02)00175-8 · Cited by 1,669
Cited by
Momeni, F., M.Mehdi Hassani.N, S., Liu, X., & Ni, J. (2017) · Materials & Design · doi:10.1016/j.matdes.2017.02.068 · Cited by 1,165
Using origami design principles to fold reprogrammable mechanical metamaterials
Silverberg, J. L., Evans, A. A., McLeod, L., Hayward, R. C., Hull, T., Santangelo, C. D., & Cohen, I. (2014) · Science · doi:10.1126/science.1252876 · Cited by 1,011
Mannoor, M. S., Jiang, Z., James, T., Kong, Y. L., Malatesta, K. A., Soboyejo, W. O., Verma, N., Gracias, D. H., & McAlpine, M. C. (2013) · Nano Letters · doi:10.1021/nl4007744 · Cited by 874
Self-citationDesign, fabrication and control of origami robots
Rus, D., & Tolley, M. T. (2018) · Nature Reviews Materials · doi:10.1038/s41578-018-0009-8 · Cited by 641
González-Henríquez, C. M., Sarabia-Vallejos, M. A., & Rodriguez-Hernandez, J. (2019) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2019.03.001 · Cited by 562
Metadata
- Authors
- Jamal, M., Kadam, S. S., Xiao, R., Jivan, F., Onn, T., Fernandes, R., Nguyen, T. D., & Gracias, D. H.
- Venue
- Advanced Healthcare Materials
- Publisher
- Wiley
- Published
- 2013-08
- Volume
- 2
- Issue
- 8
- Pages
- 1142-1150
- ISSN
- 2192-2640 (ISSN-L)
- 2192-2659
- OpenAlex
- W2104709595
- Cited by
- 270
- References
- 2
- FWCI
- 4.15
- Type
- journal article
- Language
- en
- Open access
- closed
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- Jamal, M., Kadam, S. S., Xiao, R., Jivan, F., Onn, T., Fernandes, R., Nguyen, T. D., & Gracias, D. H. (2013). Bio‐Origami Hydrogel Scaffolds Composed of Photocrosslinked PEG Bilayers. Advanced Healthcare Materials. https://doi.org/10.1002/adhm.201200458
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