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Supercritical Fluid Technology as a Tool to Prepare Gradient Multifunctional Architectures Towards Regeneration of Osteochondral Injuries

  • Ana Rita C. DuarteEmail author
  • Vitor E. Santo
  • Manuela E. Gomes
  • Rui L. Reis
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 1058)

Abstract

Platelet lysates (PLs) are a natural source of growth factors (GFs) known for its stimulatory role on stem cells which can be obtained after activation of platelets from blood plasma. The possibility to use PLs as growth factor source for tissue healing and regeneration has been pursued following different strategies. Platelet lysates are an enriched pool of growth factors which can be used as either a GFs source or as a three-dimensional (3D) hydrogel. However, most of current PLs-based hydrogels lack stability, exhibiting significant shrinking behavior. This chapter focuses on the application of supercritical fluid technology to develop three-dimensional architectures of PL constructs, crosslinked with genipin. The proposed technology allows in a single step operation the development of mechanically stable porous structures, through chemical crosslinking of the growth factors present in the PL pool, followed by supercritical drying of the samples. Furthermore gradient structures of PL-based structures with bioactive glass are also presented and are described as an interesting approach to the treatment of osteochondral defects.

Keywords

Supercritical fluid technology Platelet lysate Genipin Polymerization Gradient structures 

Notes

Acknowledgements

The research leading to these results has received funding from the project “Accelerating tissue engineering and personalized medicine discoveries by the integration of key enabling nanotechnologies, marine-derived biomaterials and stem cells,” supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Ana Rita C. Duarte
    • 1
    • 2
    Email author
  • Vitor E. Santo
    • 1
    • 2
  • Manuela E. Gomes
    • 1
    • 2
  • Rui L. Reis
    • 1
    • 2
  1. 1.3B’s Research Group—Biomaterials, Biodegradables and Biomimetics, European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of MinhoBarco/GuimarãesPortugal
  2. 2.ICVS/3B’s—PT Government Associate LaboratoryBraga/GuimarãesPortugal

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