4.8 Article

Maleimide Cross-Linked Bioactive PEG Hydrogel Exhibits Improved Reaction Kinetics and Cross-Linking for Cell Encapsulation and In Situ Delivery

Journal

ADVANCED MATERIALS
Volume 24, Issue 1, Pages 64-+

Publisher

WILEY-BLACKWELL
DOI: 10.1002/adma.201103574

Keywords

hydrogels; cell encapsulation; regenerative medicine; biomaterials; PEG; peptides; maleimide; Michael addition

Funding

  1. National Institute of Health [R01-EB004496, R01-EB011566]
  2. National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services [HHSN268201000043C]
  3. National Science Foundation under the Science and Technology Center Emergent Behaviors of Integrated Cellular Systems (EBICS) [CBET-0939511]
  4. Georgia Tech/Emory Center for the Engineering of Living Tissues
  5. Atlanta Clinical and Translational Science Institute under PHS [UL RR025008]
  6. Center for Pediatric Healthcare Technology Innovation at Georgia Tech and Children's Hospital of Atlanta
  7. American Heart Association
  8. NASA
  9. National Science Foundation
  10. NATIONAL CENTER FOR ADVANCING TRANSLATIONAL SCIENCES [UL1TR000454] Funding Source: NIH RePORTER
  11. NATIONAL CENTER FOR RESEARCH RESOURCES [UL1RR025008] Funding Source: NIH RePORTER
  12. NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [R01EB004496, R01EB011566] Funding Source: NIH RePORTER

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Engineered polyethylene glycolmaleimide matrices for regenerative medicine exhibit improved reaction effi ciency and a wider range of Young's moduli by utilizing maleimide crosslinking chemistry. This hydrogel chemistry is advantageous for cell delivery due to the mild reaction that occurs rapidly enough for in situ delivery, while easily lending itself to plug-and-play design variations such as incorporation of enzyme-cleavable cross-links and cell-adhesion peptides.

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