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Current Medicinal Chemistry

Author(s): Huayu Liu, Kun Liu, Xiao Han, Hongxiang Xie, Chuanling Si*, Wei Liu* and Youngsoo Bae*

DOI: 10.2174/0929867327666200303102859

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Cellulose Nanofibrils-based Hydrogels for Biomedical Applications: Progresses and Challenges

Page: [4622 - 4646] Pages: 25

  • * (Excluding Mailing and Handling)

Abstract

Background: Cellulose Nanofibrils (CNFs) are natural nanomaterials with nanometer dimensions. Compared with ordinary cellulose, CNFs own good mechanical properties, large specific surface areas, high Young's modulus, strong hydrophilicity and other distinguishing characteristics, which make them widely used in many fields. This review aims to introduce the preparation of CNFs-based hydrogels and their recent biomedical application advances.

Methods: By searching the recent literatures, we have summarized the preparation methods of CNFs, including mechanical methods and chemical mechanical methods, and also introduced the fabrication methods of CNFs-based hydrogels, including CNFs cross-linked with metal ion and with polymers. In addition, we have summarized the biomedical applications of CNFs-based hydrogels, including scaffold materials and wound dressings.

Results: CNFs-based hydrogels are new types of materials that are non-toxic and display a certain mechanical strength. In the tissue scaffold application, they can provide a micro-environment for the damaged tissue to repair and regenerate it. In wound dressing applications, it can fit the wound surface and protect the wound from the external environment, thereby effectively promoting the healing of skin tissue.

Conclusion: By summarizing the preparation and application of CNFs-based hydrogels, we have analyzed and forecasted their development trends. At present, the research of CNFs-based hydrogels is still in the laboratory stage. It needs further exploration to be applied in practice. The development of medical hydrogels with high mechanical properties and biocompatibility still poses significant challenges.

Keywords: Cellulose nanofibrils (CNFs), hydrogel, biomedical applications, nanocellulose, Young's modulus, CNFs-based hydrogels.

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