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Hemocompatibility of Ca2+-Crosslinked Nanocellulose Hydrogels: Toward Efficient Management of Hemostasis
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanotechnology and Functional Materials)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Clinical Immunology. (Forskargrupp Bo Nilsson)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanotechnology and Functional Materials)
2017 (English)In: Macromolecular Bioscience, ISSN 1616-5187, E-ISSN 1616-5195, 1-9 p., 1700236Article in journal (Refereed) Epub ahead of print
Abstract [en]

The present work investigates Ca2+-crosslinked nanofibrillated cellulose hydrogels as potential hemostatic wound dressings by studying core interactions between the materials and a central component of wounds and wound healing—the blood. Hydrogels of wood-derived anionic nanofibrillated cellulose (NFC) and NFC hydrogels that incorporate kaolin or collagen are studied in an in vitro whole blood model and with platelet-free plasma assays. The evaluation of thrombin and factor XIIa formation, platelet reduction, and the release of activated complement system proteins, shows that the NFC hydrogel efficiently triggered blood coagulation, with a rapid onset of clot formation, while displaying basal complement system activation. By using the NFC hydrogel as a carrier of kaolin, the onset of hemostasis is further boosted, while the NFC hydrogel containing collagen exhibits blood activating properties comparable to the anionic NFC hydrogel. The herein studied NFC hydrogels demonstrate great potential for being part of advanced wound healing dressings that can be tuned to target certain wounds (e.g., strongly hemorrhaging ones) or specific phases of the wound healing process for optimal wound management.

Place, publisher, year, edition, pages
2017. 1-9 p., 1700236
Keyword [en]
biocompatibility, blood coagulation, complement system, nanofibrillated cellulose, wound dressing
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-332127DOI: 10.1002/mabi.201700236PubMedID: 28941135OAI: oai:DiVA.org:uu-332127DiVA: diva2:1152315
Funder
Swedish Research Council Formas
Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2017-11-13Bibliographically approved

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Basu, AlexHong, JaanFerraz, Natalia

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