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Kwanghyun Baek, Jae Hyun Jeong, Artem Shkumatov, Rashid Bashir and Hyunjoon Kong Hydrogels: In Situ Self-Folding Assembly of a Multi-Walled Hydrogel Tube for Uniaxial Sustained Molecular Release (Adv. Mater. 39/2013) Advanced Materials 25

Version of Record online: 20 OCT 2013 | DOI: 10.1002/adma.201370245

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Multiwalled poly(ethylene glycol) diacrylate (PEGDA) hydrogel tubes are assembled via in situ self-folding of a bilayered hydrogel patch with different expansion ratios and rigidity between the two layers, as described by Hyunjoon Kong and co-workers on page 5568. The resulting gel tubes exhibit unidirectional, sustained release of proangiogenic growth factors and significantly stimulated vascularization around the gel implant.

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