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. 2024 Jan 6;24:100948. doi: 10.1016/j.mtbio.2024.100948

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© 2024 The Authors. Published by Elsevier Ltd.

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Fig. 5 — The improved lubrication and friction property to cartilage. (A) Schematic representation of brush nanofibers to enhance lubrication of damaged human cartilage. Reproduced with permission [78]. Copyright 2021, Springer Nature. (B) The average friction coefficients of various hydrogels were examined at different sliding speeds (a) and the PVA-3HA/HACC-Cit hydrogel under varying loads (b). Surface morphologies of PVA/HACC-Cit (c), PVA-2HA/HACC-Cit (d), PVA-3HA/HACC-Cit (e), and PVA-4HA/HACC-Cit (f), were observed after undergoing a 15-min friction test in 25 % fetal bovine serum with a sliding speed of 30 mm/s. Reproduced with permission [80]. Copyright 2020, Elsevier.